AdithyaSK HF Staff commited on
Commit
99ffdff
·
verified ·
1 Parent(s): d2c8cf9

Stage Harbor release files 25501-26000

Browse files
This view is limited to 50 files because it contains too many changes.   See raw diff
Files changed (50) hide show
  1. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/conditional_detr/modeling_conditional_detr.py +0 -0
  2. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convbert/__init__.py +30 -0
  3. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convbert/configuration_convbert.py +160 -0
  4. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convbert/convert_convbert_original_tf1_checkpoint_to_pytorch_and_tf2.py +57 -0
  5. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convbert/modeling_convbert.py +1346 -0
  6. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convbert/modeling_tf_convbert.py +1476 -0
  7. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convbert/tokenization_convbert.py +512 -0
  8. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convbert/tokenization_convbert_fast.py +176 -0
  9. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convnext/__init__.py +31 -0
  10. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convnext/configuration_convnext.py +142 -0
  11. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convnext/convert_convnext_to_pytorch.py +242 -0
  12. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convnext/feature_extraction_convnext.py +36 -0
  13. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convnext/image_processing_convnext.py +323 -0
  14. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convnext/image_processing_convnext_fast.py +199 -0
  15. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convnext/modeling_convnext.py +551 -0
  16. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convnext/modeling_tf_convnext.py +669 -0
  17. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convnextv2/__init__.py +28 -0
  18. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convnextv2/configuration_convnextv2.py +118 -0
  19. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convnextv2/convert_convnextv2_to_pytorch.py +286 -0
  20. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convnextv2/modeling_convnextv2.py +574 -0
  21. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convnextv2/modeling_tf_convnextv2.py +683 -0
  22. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/cpm/__init__.py +27 -0
  23. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/cpm/tokenization_cpm.py +348 -0
  24. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/cpm/tokenization_cpm_fast.py +241 -0
  25. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/cpmant/__init__.py +28 -0
  26. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/cpmant/configuration_cpmant.py +122 -0
  27. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/cpmant/modeling_cpmant.py +860 -0
  28. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/cpmant/tokenization_cpmant.py +270 -0
  29. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/ctrl/__init__.py +29 -0
  30. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/ctrl/configuration_ctrl.py +116 -0
  31. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/ctrl/modeling_ctrl.py +844 -0
  32. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/ctrl/modeling_tf_ctrl.py +922 -0
  33. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/ctrl/tokenization_ctrl.py +251 -0
  34. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/cvt/__init__.py +28 -0
  35. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/cvt/configuration_cvt.py +146 -0
  36. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/cvt/convert_cvt_original_pytorch_checkpoint_to_pytorch.py +362 -0
  37. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/cvt/modeling_cvt.py +725 -0
  38. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/cvt/modeling_tf_cvt.py +1096 -0
  39. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/dab_detr/__init__.py +28 -0
  40. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/dab_detr/configuration_dab_detr.py +260 -0
  41. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/dab_detr/convert_dab_detr_original_pytorch_checkpoint_to_pytorch.py +233 -0
  42. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/dab_detr/modeling_dab_detr.py +1716 -0
  43. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/dac/__init__.py +28 -0
  44. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/dac/configuration_dac.py +114 -0
  45. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/dac/convert_dac_checkpoint.py +261 -0
  46. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/dac/feature_extraction_dac.py +173 -0
  47. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/dac/modeling_dac.py +724 -0
  48. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/data2vec/__init__.py +32 -0
  49. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/data2vec/configuration_data2vec_audio.py +288 -0
  50. tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/data2vec/configuration_data2vec_text.py +154 -0
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/conditional_detr/modeling_conditional_detr.py ADDED
The diff for this file is too large to render. See raw diff
 
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convbert/__init__.py ADDED
@@ -0,0 +1,30 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # Copyright 2024 The HuggingFace Team. All rights reserved.
2
+ #
3
+ # Licensed under the Apache License, Version 2.0 (the "License");
4
+ # you may not use this file except in compliance with the License.
5
+ # You may obtain a copy of the License at
6
+ #
7
+ # http://www.apache.org/licenses/LICENSE-2.0
8
+ #
9
+ # Unless required by applicable law or agreed to in writing, software
10
+ # distributed under the License is distributed on an "AS IS" BASIS,
11
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12
+ # See the License for the specific language governing permissions and
13
+ # limitations under the License.
14
+ from typing import TYPE_CHECKING
15
+
16
+ from ...utils import _LazyModule
17
+ from ...utils.import_utils import define_import_structure
18
+
19
+
20
+ if TYPE_CHECKING:
21
+ from .configuration_convbert import *
22
+ from .modeling_convbert import *
23
+ from .modeling_tf_convbert import *
24
+ from .tokenization_convbert import *
25
+ from .tokenization_convbert_fast import *
26
+ else:
27
+ import sys
28
+
29
+ _file = globals()["__file__"]
30
+ sys.modules[__name__] = _LazyModule(__name__, _file, define_import_structure(_file), module_spec=__spec__)
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convbert/configuration_convbert.py ADDED
@@ -0,0 +1,160 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright The HuggingFace team. All rights reserved.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """ConvBERT model configuration"""
16
+
17
+ from collections import OrderedDict
18
+ from typing import Mapping
19
+
20
+ from ...configuration_utils import PretrainedConfig
21
+ from ...onnx import OnnxConfig
22
+ from ...utils import logging
23
+
24
+
25
+ logger = logging.get_logger(__name__)
26
+
27
+
28
+ class ConvBertConfig(PretrainedConfig):
29
+ r"""
30
+ This is the configuration class to store the configuration of a [`ConvBertModel`]. It is used to instantiate an
31
+ ConvBERT model according to the specified arguments, defining the model architecture. Instantiating a configuration
32
+ with the defaults will yield a similar configuration to that of the ConvBERT
33
+ [YituTech/conv-bert-base](https://huggingface.co/YituTech/conv-bert-base) architecture.
34
+
35
+ Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
36
+ documentation from [`PretrainedConfig`] for more information.
37
+
38
+
39
+ Args:
40
+ vocab_size (`int`, *optional*, defaults to 30522):
41
+ Vocabulary size of the ConvBERT model. Defines the number of different tokens that can be represented by
42
+ the `inputs_ids` passed when calling [`ConvBertModel`] or [`TFConvBertModel`].
43
+ hidden_size (`int`, *optional*, defaults to 768):
44
+ Dimensionality of the encoder layers and the pooler layer.
45
+ num_hidden_layers (`int`, *optional*, defaults to 12):
46
+ Number of hidden layers in the Transformer encoder.
47
+ num_attention_heads (`int`, *optional*, defaults to 12):
48
+ Number of attention heads for each attention layer in the Transformer encoder.
49
+ intermediate_size (`int`, *optional*, defaults to 3072):
50
+ Dimensionality of the "intermediate" (i.e., feed-forward) layer in the Transformer encoder.
51
+ hidden_act (`str` or `function`, *optional*, defaults to `"gelu"`):
52
+ The non-linear activation function (function or string) in the encoder and pooler. If string, `"gelu"`,
53
+ `"relu"`, `"selu"` and `"gelu_new"` are supported.
54
+ hidden_dropout_prob (`float`, *optional*, defaults to 0.1):
55
+ The dropout probability for all fully connected layers in the embeddings, encoder, and pooler.
56
+ attention_probs_dropout_prob (`float`, *optional*, defaults to 0.1):
57
+ The dropout ratio for the attention probabilities.
58
+ max_position_embeddings (`int`, *optional*, defaults to 512):
59
+ The maximum sequence length that this model might ever be used with. Typically set this to something large
60
+ just in case (e.g., 512 or 1024 or 2048).
61
+ type_vocab_size (`int`, *optional*, defaults to 2):
62
+ The vocabulary size of the `token_type_ids` passed when calling [`ConvBertModel`] or [`TFConvBertModel`].
63
+ initializer_range (`float`, *optional*, defaults to 0.02):
64
+ The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
65
+ layer_norm_eps (`float`, *optional*, defaults to 1e-12):
66
+ The epsilon used by the layer normalization layers.
67
+ head_ratio (`int`, *optional*, defaults to 2):
68
+ Ratio gamma to reduce the number of attention heads.
69
+ num_groups (`int`, *optional*, defaults to 1):
70
+ The number of groups for grouped linear layers for ConvBert model
71
+ conv_kernel_size (`int`, *optional*, defaults to 9):
72
+ The size of the convolutional kernel.
73
+ classifier_dropout (`float`, *optional*):
74
+ The dropout ratio for the classification head.
75
+
76
+ Example:
77
+
78
+ ```python
79
+ >>> from transformers import ConvBertConfig, ConvBertModel
80
+
81
+ >>> # Initializing a ConvBERT convbert-base-uncased style configuration
82
+ >>> configuration = ConvBertConfig()
83
+
84
+ >>> # Initializing a model (with random weights) from the convbert-base-uncased style configuration
85
+ >>> model = ConvBertModel(configuration)
86
+
87
+ >>> # Accessing the model configuration
88
+ >>> configuration = model.config
89
+ ```"""
90
+
91
+ model_type = "convbert"
92
+
93
+ def __init__(
94
+ self,
95
+ vocab_size=30522,
96
+ hidden_size=768,
97
+ num_hidden_layers=12,
98
+ num_attention_heads=12,
99
+ intermediate_size=3072,
100
+ hidden_act="gelu",
101
+ hidden_dropout_prob=0.1,
102
+ attention_probs_dropout_prob=0.1,
103
+ max_position_embeddings=512,
104
+ type_vocab_size=2,
105
+ initializer_range=0.02,
106
+ layer_norm_eps=1e-12,
107
+ pad_token_id=1,
108
+ bos_token_id=0,
109
+ eos_token_id=2,
110
+ embedding_size=768,
111
+ head_ratio=2,
112
+ conv_kernel_size=9,
113
+ num_groups=1,
114
+ classifier_dropout=None,
115
+ **kwargs,
116
+ ):
117
+ super().__init__(
118
+ pad_token_id=pad_token_id,
119
+ bos_token_id=bos_token_id,
120
+ eos_token_id=eos_token_id,
121
+ **kwargs,
122
+ )
123
+
124
+ self.vocab_size = vocab_size
125
+ self.hidden_size = hidden_size
126
+ self.num_hidden_layers = num_hidden_layers
127
+ self.num_attention_heads = num_attention_heads
128
+ self.intermediate_size = intermediate_size
129
+ self.hidden_act = hidden_act
130
+ self.hidden_dropout_prob = hidden_dropout_prob
131
+ self.attention_probs_dropout_prob = attention_probs_dropout_prob
132
+ self.max_position_embeddings = max_position_embeddings
133
+ self.type_vocab_size = type_vocab_size
134
+ self.initializer_range = initializer_range
135
+ self.layer_norm_eps = layer_norm_eps
136
+ self.embedding_size = embedding_size
137
+ self.head_ratio = head_ratio
138
+ self.conv_kernel_size = conv_kernel_size
139
+ self.num_groups = num_groups
140
+ self.classifier_dropout = classifier_dropout
141
+
142
+
143
+ # Copied from transformers.models.bert.configuration_bert.BertOnnxConfig
144
+ class ConvBertOnnxConfig(OnnxConfig):
145
+ @property
146
+ def inputs(self) -> Mapping[str, Mapping[int, str]]:
147
+ if self.task == "multiple-choice":
148
+ dynamic_axis = {0: "batch", 1: "choice", 2: "sequence"}
149
+ else:
150
+ dynamic_axis = {0: "batch", 1: "sequence"}
151
+ return OrderedDict(
152
+ [
153
+ ("input_ids", dynamic_axis),
154
+ ("attention_mask", dynamic_axis),
155
+ ("token_type_ids", dynamic_axis),
156
+ ]
157
+ )
158
+
159
+
160
+ __all__ = ["ConvBertConfig", "ConvBertOnnxConfig"]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convbert/convert_convbert_original_tf1_checkpoint_to_pytorch_and_tf2.py ADDED
@@ -0,0 +1,57 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2020 The HuggingFace Inc. team.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """Convert ConvBERT checkpoint."""
16
+
17
+ import argparse
18
+
19
+ from transformers import ConvBertConfig, ConvBertModel, TFConvBertModel, load_tf_weights_in_convbert
20
+ from transformers.utils import logging
21
+
22
+
23
+ logging.set_verbosity_info()
24
+
25
+
26
+ def convert_orig_tf1_checkpoint_to_pytorch(tf_checkpoint_path, convbert_config_file, pytorch_dump_path):
27
+ conf = ConvBertConfig.from_json_file(convbert_config_file)
28
+ model = ConvBertModel(conf)
29
+
30
+ model = load_tf_weights_in_convbert(model, conf, tf_checkpoint_path)
31
+ model.save_pretrained(pytorch_dump_path)
32
+
33
+ tf_model = TFConvBertModel.from_pretrained(pytorch_dump_path, from_pt=True)
34
+ tf_model.save_pretrained(pytorch_dump_path)
35
+
36
+
37
+ if __name__ == "__main__":
38
+ parser = argparse.ArgumentParser()
39
+ # Required parameters
40
+ parser.add_argument(
41
+ "--tf_checkpoint_path", default=None, type=str, required=True, help="Path to the TensorFlow checkpoint path."
42
+ )
43
+ parser.add_argument(
44
+ "--convbert_config_file",
45
+ default=None,
46
+ type=str,
47
+ required=True,
48
+ help=(
49
+ "The config json file corresponding to the pre-trained ConvBERT model. \n"
50
+ "This specifies the model architecture."
51
+ ),
52
+ )
53
+ parser.add_argument(
54
+ "--pytorch_dump_path", default=None, type=str, required=True, help="Path to the output PyTorch model."
55
+ )
56
+ args = parser.parse_args()
57
+ convert_orig_tf1_checkpoint_to_pytorch(args.tf_checkpoint_path, args.convbert_config_file, args.pytorch_dump_path)
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convbert/modeling_convbert.py ADDED
@@ -0,0 +1,1346 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2021 The HuggingFace Inc. team. All rights reserved.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """PyTorch ConvBERT model."""
16
+
17
+ import math
18
+ import os
19
+ from operator import attrgetter
20
+ from typing import Optional, Tuple, Union
21
+
22
+ import torch
23
+ import torch.utils.checkpoint
24
+ from torch import nn
25
+ from torch.nn import BCEWithLogitsLoss, CrossEntropyLoss, MSELoss
26
+
27
+ from ...activations import ACT2FN, get_activation
28
+ from ...modeling_outputs import (
29
+ BaseModelOutputWithCrossAttentions,
30
+ MaskedLMOutput,
31
+ MultipleChoiceModelOutput,
32
+ QuestionAnsweringModelOutput,
33
+ SequenceClassifierOutput,
34
+ TokenClassifierOutput,
35
+ )
36
+ from ...modeling_utils import PreTrainedModel, SequenceSummary
37
+ from ...pytorch_utils import apply_chunking_to_forward, find_pruneable_heads_and_indices, prune_linear_layer
38
+ from ...utils import add_code_sample_docstrings, add_start_docstrings, add_start_docstrings_to_model_forward, logging
39
+ from .configuration_convbert import ConvBertConfig
40
+
41
+
42
+ logger = logging.get_logger(__name__)
43
+
44
+ _CHECKPOINT_FOR_DOC = "YituTech/conv-bert-base"
45
+ _CONFIG_FOR_DOC = "ConvBertConfig"
46
+
47
+
48
+ def load_tf_weights_in_convbert(model, config, tf_checkpoint_path):
49
+ """Load tf checkpoints in a pytorch model."""
50
+ try:
51
+ import tensorflow as tf
52
+ except ImportError:
53
+ logger.error(
54
+ "Loading a TensorFlow model in PyTorch, requires TensorFlow to be installed. Please see "
55
+ "https://www.tensorflow.org/install/ for installation instructions."
56
+ )
57
+ raise
58
+ tf_path = os.path.abspath(tf_checkpoint_path)
59
+ logger.info(f"Converting TensorFlow checkpoint from {tf_path}")
60
+ # Load weights from TF model
61
+ init_vars = tf.train.list_variables(tf_path)
62
+ tf_data = {}
63
+ for name, shape in init_vars:
64
+ logger.info(f"Loading TF weight {name} with shape {shape}")
65
+ array = tf.train.load_variable(tf_path, name)
66
+ tf_data[name] = array
67
+
68
+ param_mapping = {
69
+ "embeddings.word_embeddings.weight": "electra/embeddings/word_embeddings",
70
+ "embeddings.position_embeddings.weight": "electra/embeddings/position_embeddings",
71
+ "embeddings.token_type_embeddings.weight": "electra/embeddings/token_type_embeddings",
72
+ "embeddings.LayerNorm.weight": "electra/embeddings/LayerNorm/gamma",
73
+ "embeddings.LayerNorm.bias": "electra/embeddings/LayerNorm/beta",
74
+ "embeddings_project.weight": "electra/embeddings_project/kernel",
75
+ "embeddings_project.bias": "electra/embeddings_project/bias",
76
+ }
77
+ if config.num_groups > 1:
78
+ group_dense_name = "g_dense"
79
+ else:
80
+ group_dense_name = "dense"
81
+
82
+ for j in range(config.num_hidden_layers):
83
+ param_mapping[f"encoder.layer.{j}.attention.self.query.weight"] = (
84
+ f"electra/encoder/layer_{j}/attention/self/query/kernel"
85
+ )
86
+ param_mapping[f"encoder.layer.{j}.attention.self.query.bias"] = (
87
+ f"electra/encoder/layer_{j}/attention/self/query/bias"
88
+ )
89
+ param_mapping[f"encoder.layer.{j}.attention.self.key.weight"] = (
90
+ f"electra/encoder/layer_{j}/attention/self/key/kernel"
91
+ )
92
+ param_mapping[f"encoder.layer.{j}.attention.self.key.bias"] = (
93
+ f"electra/encoder/layer_{j}/attention/self/key/bias"
94
+ )
95
+ param_mapping[f"encoder.layer.{j}.attention.self.value.weight"] = (
96
+ f"electra/encoder/layer_{j}/attention/self/value/kernel"
97
+ )
98
+ param_mapping[f"encoder.layer.{j}.attention.self.value.bias"] = (
99
+ f"electra/encoder/layer_{j}/attention/self/value/bias"
100
+ )
101
+ param_mapping[f"encoder.layer.{j}.attention.self.key_conv_attn_layer.depthwise.weight"] = (
102
+ f"electra/encoder/layer_{j}/attention/self/conv_attn_key/depthwise_kernel"
103
+ )
104
+ param_mapping[f"encoder.layer.{j}.attention.self.key_conv_attn_layer.pointwise.weight"] = (
105
+ f"electra/encoder/layer_{j}/attention/self/conv_attn_key/pointwise_kernel"
106
+ )
107
+ param_mapping[f"encoder.layer.{j}.attention.self.key_conv_attn_layer.bias"] = (
108
+ f"electra/encoder/layer_{j}/attention/self/conv_attn_key/bias"
109
+ )
110
+ param_mapping[f"encoder.layer.{j}.attention.self.conv_kernel_layer.weight"] = (
111
+ f"electra/encoder/layer_{j}/attention/self/conv_attn_kernel/kernel"
112
+ )
113
+ param_mapping[f"encoder.layer.{j}.attention.self.conv_kernel_layer.bias"] = (
114
+ f"electra/encoder/layer_{j}/attention/self/conv_attn_kernel/bias"
115
+ )
116
+ param_mapping[f"encoder.layer.{j}.attention.self.conv_out_layer.weight"] = (
117
+ f"electra/encoder/layer_{j}/attention/self/conv_attn_point/kernel"
118
+ )
119
+ param_mapping[f"encoder.layer.{j}.attention.self.conv_out_layer.bias"] = (
120
+ f"electra/encoder/layer_{j}/attention/self/conv_attn_point/bias"
121
+ )
122
+ param_mapping[f"encoder.layer.{j}.attention.output.dense.weight"] = (
123
+ f"electra/encoder/layer_{j}/attention/output/dense/kernel"
124
+ )
125
+ param_mapping[f"encoder.layer.{j}.attention.output.LayerNorm.weight"] = (
126
+ f"electra/encoder/layer_{j}/attention/output/LayerNorm/gamma"
127
+ )
128
+ param_mapping[f"encoder.layer.{j}.attention.output.dense.bias"] = (
129
+ f"electra/encoder/layer_{j}/attention/output/dense/bias"
130
+ )
131
+ param_mapping[f"encoder.layer.{j}.attention.output.LayerNorm.bias"] = (
132
+ f"electra/encoder/layer_{j}/attention/output/LayerNorm/beta"
133
+ )
134
+ param_mapping[f"encoder.layer.{j}.intermediate.dense.weight"] = (
135
+ f"electra/encoder/layer_{j}/intermediate/{group_dense_name}/kernel"
136
+ )
137
+ param_mapping[f"encoder.layer.{j}.intermediate.dense.bias"] = (
138
+ f"electra/encoder/layer_{j}/intermediate/{group_dense_name}/bias"
139
+ )
140
+ param_mapping[f"encoder.layer.{j}.output.dense.weight"] = (
141
+ f"electra/encoder/layer_{j}/output/{group_dense_name}/kernel"
142
+ )
143
+ param_mapping[f"encoder.layer.{j}.output.dense.bias"] = (
144
+ f"electra/encoder/layer_{j}/output/{group_dense_name}/bias"
145
+ )
146
+ param_mapping[f"encoder.layer.{j}.output.LayerNorm.weight"] = (
147
+ f"electra/encoder/layer_{j}/output/LayerNorm/gamma"
148
+ )
149
+ param_mapping[f"encoder.layer.{j}.output.LayerNorm.bias"] = f"electra/encoder/layer_{j}/output/LayerNorm/beta"
150
+
151
+ for param in model.named_parameters():
152
+ param_name = param[0]
153
+ retriever = attrgetter(param_name)
154
+ result = retriever(model)
155
+ tf_name = param_mapping[param_name]
156
+ value = torch.from_numpy(tf_data[tf_name])
157
+ logger.info(f"TF: {tf_name}, PT: {param_name} ")
158
+ if tf_name.endswith("/kernel"):
159
+ if not tf_name.endswith("/intermediate/g_dense/kernel"):
160
+ if not tf_name.endswith("/output/g_dense/kernel"):
161
+ value = value.T
162
+ if tf_name.endswith("/depthwise_kernel"):
163
+ value = value.permute(1, 2, 0) # 2, 0, 1
164
+ if tf_name.endswith("/pointwise_kernel"):
165
+ value = value.permute(2, 1, 0) # 2, 1, 0
166
+ if tf_name.endswith("/conv_attn_key/bias"):
167
+ value = value.unsqueeze(-1)
168
+ result.data = value
169
+ return model
170
+
171
+
172
+ class ConvBertEmbeddings(nn.Module):
173
+ """Construct the embeddings from word, position and token_type embeddings."""
174
+
175
+ def __init__(self, config):
176
+ super().__init__()
177
+ self.word_embeddings = nn.Embedding(config.vocab_size, config.embedding_size, padding_idx=config.pad_token_id)
178
+ self.position_embeddings = nn.Embedding(config.max_position_embeddings, config.embedding_size)
179
+ self.token_type_embeddings = nn.Embedding(config.type_vocab_size, config.embedding_size)
180
+
181
+ # self.LayerNorm is not snake-cased to stick with TensorFlow model variable name and be able to load
182
+ # any TensorFlow checkpoint file
183
+ self.LayerNorm = nn.LayerNorm(config.embedding_size, eps=config.layer_norm_eps)
184
+ self.dropout = nn.Dropout(config.hidden_dropout_prob)
185
+ # position_ids (1, len position emb) is contiguous in memory and exported when serialized
186
+ self.register_buffer(
187
+ "position_ids", torch.arange(config.max_position_embeddings).expand((1, -1)), persistent=False
188
+ )
189
+ self.register_buffer(
190
+ "token_type_ids", torch.zeros(self.position_ids.size(), dtype=torch.long), persistent=False
191
+ )
192
+
193
+ def forward(
194
+ self,
195
+ input_ids: Optional[torch.LongTensor] = None,
196
+ token_type_ids: Optional[torch.LongTensor] = None,
197
+ position_ids: Optional[torch.LongTensor] = None,
198
+ inputs_embeds: Optional[torch.FloatTensor] = None,
199
+ ) -> torch.LongTensor:
200
+ if input_ids is not None:
201
+ input_shape = input_ids.size()
202
+ else:
203
+ input_shape = inputs_embeds.size()[:-1]
204
+
205
+ seq_length = input_shape[1]
206
+
207
+ if position_ids is None:
208
+ position_ids = self.position_ids[:, :seq_length]
209
+
210
+ # Setting the token_type_ids to the registered buffer in constructor where it is all zeros, which usually occurs
211
+ # when its auto-generated, registered buffer helps users when tracing the model without passing token_type_ids, solves
212
+ # issue #5664
213
+ if token_type_ids is None:
214
+ if hasattr(self, "token_type_ids"):
215
+ buffered_token_type_ids = self.token_type_ids[:, :seq_length]
216
+ buffered_token_type_ids_expanded = buffered_token_type_ids.expand(input_shape[0], seq_length)
217
+ token_type_ids = buffered_token_type_ids_expanded
218
+ else:
219
+ token_type_ids = torch.zeros(input_shape, dtype=torch.long, device=self.position_ids.device)
220
+
221
+ if inputs_embeds is None:
222
+ inputs_embeds = self.word_embeddings(input_ids)
223
+ position_embeddings = self.position_embeddings(position_ids)
224
+ token_type_embeddings = self.token_type_embeddings(token_type_ids)
225
+
226
+ embeddings = inputs_embeds + position_embeddings + token_type_embeddings
227
+ embeddings = self.LayerNorm(embeddings)
228
+ embeddings = self.dropout(embeddings)
229
+ return embeddings
230
+
231
+
232
+ class ConvBertPreTrainedModel(PreTrainedModel):
233
+ """
234
+ An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained
235
+ models.
236
+ """
237
+
238
+ config_class = ConvBertConfig
239
+ load_tf_weights = load_tf_weights_in_convbert
240
+ base_model_prefix = "convbert"
241
+ supports_gradient_checkpointing = True
242
+
243
+ def _init_weights(self, module):
244
+ """Initialize the weights"""
245
+ if isinstance(module, nn.Linear):
246
+ # Slightly different from the TF version which uses truncated_normal for initialization
247
+ # cf https://github.com/pytorch/pytorch/pull/5617
248
+ module.weight.data.normal_(mean=0.0, std=self.config.initializer_range)
249
+ if module.bias is not None:
250
+ module.bias.data.zero_()
251
+ elif isinstance(module, nn.Embedding):
252
+ module.weight.data.normal_(mean=0.0, std=self.config.initializer_range)
253
+ if module.padding_idx is not None:
254
+ module.weight.data[module.padding_idx].zero_()
255
+ elif isinstance(module, nn.LayerNorm):
256
+ module.bias.data.zero_()
257
+ module.weight.data.fill_(1.0)
258
+
259
+
260
+ class SeparableConv1D(nn.Module):
261
+ """This class implements separable convolution, i.e. a depthwise and a pointwise layer"""
262
+
263
+ def __init__(self, config, input_filters, output_filters, kernel_size, **kwargs):
264
+ super().__init__()
265
+ self.depthwise = nn.Conv1d(
266
+ input_filters,
267
+ input_filters,
268
+ kernel_size=kernel_size,
269
+ groups=input_filters,
270
+ padding=kernel_size // 2,
271
+ bias=False,
272
+ )
273
+ self.pointwise = nn.Conv1d(input_filters, output_filters, kernel_size=1, bias=False)
274
+ self.bias = nn.Parameter(torch.zeros(output_filters, 1))
275
+
276
+ self.depthwise.weight.data.normal_(mean=0.0, std=config.initializer_range)
277
+ self.pointwise.weight.data.normal_(mean=0.0, std=config.initializer_range)
278
+
279
+ def forward(self, hidden_states: torch.Tensor) -> torch.Tensor:
280
+ x = self.depthwise(hidden_states)
281
+ x = self.pointwise(x)
282
+ x += self.bias
283
+ return x
284
+
285
+
286
+ class ConvBertSelfAttention(nn.Module):
287
+ def __init__(self, config):
288
+ super().__init__()
289
+ if config.hidden_size % config.num_attention_heads != 0 and not hasattr(config, "embedding_size"):
290
+ raise ValueError(
291
+ f"The hidden size ({config.hidden_size}) is not a multiple of the number of attention "
292
+ f"heads ({config.num_attention_heads})"
293
+ )
294
+
295
+ new_num_attention_heads = config.num_attention_heads // config.head_ratio
296
+ if new_num_attention_heads < 1:
297
+ self.head_ratio = config.num_attention_heads
298
+ self.num_attention_heads = 1
299
+ else:
300
+ self.num_attention_heads = new_num_attention_heads
301
+ self.head_ratio = config.head_ratio
302
+
303
+ self.conv_kernel_size = config.conv_kernel_size
304
+ if config.hidden_size % self.num_attention_heads != 0:
305
+ raise ValueError("hidden_size should be divisible by num_attention_heads")
306
+
307
+ self.attention_head_size = (config.hidden_size // self.num_attention_heads) // 2
308
+ self.all_head_size = self.num_attention_heads * self.attention_head_size
309
+
310
+ self.query = nn.Linear(config.hidden_size, self.all_head_size)
311
+ self.key = nn.Linear(config.hidden_size, self.all_head_size)
312
+ self.value = nn.Linear(config.hidden_size, self.all_head_size)
313
+
314
+ self.key_conv_attn_layer = SeparableConv1D(
315
+ config, config.hidden_size, self.all_head_size, self.conv_kernel_size
316
+ )
317
+ self.conv_kernel_layer = nn.Linear(self.all_head_size, self.num_attention_heads * self.conv_kernel_size)
318
+ self.conv_out_layer = nn.Linear(config.hidden_size, self.all_head_size)
319
+
320
+ self.unfold = nn.Unfold(
321
+ kernel_size=[self.conv_kernel_size, 1], padding=[int((self.conv_kernel_size - 1) / 2), 0]
322
+ )
323
+
324
+ self.dropout = nn.Dropout(config.attention_probs_dropout_prob)
325
+
326
+ def transpose_for_scores(self, x):
327
+ new_x_shape = x.size()[:-1] + (self.num_attention_heads, self.attention_head_size)
328
+ x = x.view(*new_x_shape)
329
+ return x.permute(0, 2, 1, 3)
330
+
331
+ def forward(
332
+ self,
333
+ hidden_states: torch.Tensor,
334
+ attention_mask: Optional[torch.FloatTensor] = None,
335
+ head_mask: Optional[torch.FloatTensor] = None,
336
+ encoder_hidden_states: Optional[torch.Tensor] = None,
337
+ output_attentions: Optional[bool] = False,
338
+ ) -> Tuple[torch.Tensor, Optional[torch.Tensor]]:
339
+ mixed_query_layer = self.query(hidden_states)
340
+ batch_size = hidden_states.size(0)
341
+ # If this is instantiated as a cross-attention module, the keys
342
+ # and values come from an encoder; the attention mask needs to be
343
+ # such that the encoder's padding tokens are not attended to.
344
+ if encoder_hidden_states is not None:
345
+ mixed_key_layer = self.key(encoder_hidden_states)
346
+ mixed_value_layer = self.value(encoder_hidden_states)
347
+ else:
348
+ mixed_key_layer = self.key(hidden_states)
349
+ mixed_value_layer = self.value(hidden_states)
350
+
351
+ mixed_key_conv_attn_layer = self.key_conv_attn_layer(hidden_states.transpose(1, 2))
352
+ mixed_key_conv_attn_layer = mixed_key_conv_attn_layer.transpose(1, 2)
353
+
354
+ query_layer = self.transpose_for_scores(mixed_query_layer)
355
+ key_layer = self.transpose_for_scores(mixed_key_layer)
356
+ value_layer = self.transpose_for_scores(mixed_value_layer)
357
+ conv_attn_layer = torch.multiply(mixed_key_conv_attn_layer, mixed_query_layer)
358
+
359
+ conv_kernel_layer = self.conv_kernel_layer(conv_attn_layer)
360
+ conv_kernel_layer = torch.reshape(conv_kernel_layer, [-1, self.conv_kernel_size, 1])
361
+ conv_kernel_layer = torch.softmax(conv_kernel_layer, dim=1)
362
+
363
+ conv_out_layer = self.conv_out_layer(hidden_states)
364
+ conv_out_layer = torch.reshape(conv_out_layer, [batch_size, -1, self.all_head_size])
365
+ conv_out_layer = conv_out_layer.transpose(1, 2).contiguous().unsqueeze(-1)
366
+ conv_out_layer = nn.functional.unfold(
367
+ conv_out_layer,
368
+ kernel_size=[self.conv_kernel_size, 1],
369
+ dilation=1,
370
+ padding=[(self.conv_kernel_size - 1) // 2, 0],
371
+ stride=1,
372
+ )
373
+ conv_out_layer = conv_out_layer.transpose(1, 2).reshape(
374
+ batch_size, -1, self.all_head_size, self.conv_kernel_size
375
+ )
376
+ conv_out_layer = torch.reshape(conv_out_layer, [-1, self.attention_head_size, self.conv_kernel_size])
377
+ conv_out_layer = torch.matmul(conv_out_layer, conv_kernel_layer)
378
+ conv_out_layer = torch.reshape(conv_out_layer, [-1, self.all_head_size])
379
+
380
+ # Take the dot product between "query" and "key" to get the raw attention scores.
381
+ attention_scores = torch.matmul(query_layer, key_layer.transpose(-1, -2))
382
+ attention_scores = attention_scores / math.sqrt(self.attention_head_size)
383
+ if attention_mask is not None:
384
+ # Apply the attention mask is (precomputed for all layers in ConvBertModel forward() function)
385
+ attention_scores = attention_scores + attention_mask
386
+
387
+ # Normalize the attention scores to probabilities.
388
+ attention_probs = nn.functional.softmax(attention_scores, dim=-1)
389
+
390
+ # This is actually dropping out entire tokens to attend to, which might
391
+ # seem a bit unusual, but is taken from the original Transformer paper.
392
+ attention_probs = self.dropout(attention_probs)
393
+
394
+ # Mask heads if we want to
395
+ if head_mask is not None:
396
+ attention_probs = attention_probs * head_mask
397
+
398
+ context_layer = torch.matmul(attention_probs, value_layer)
399
+ context_layer = context_layer.permute(0, 2, 1, 3).contiguous()
400
+
401
+ conv_out = torch.reshape(conv_out_layer, [batch_size, -1, self.num_attention_heads, self.attention_head_size])
402
+ context_layer = torch.cat([context_layer, conv_out], 2)
403
+
404
+ # conv and context
405
+ new_context_layer_shape = context_layer.size()[:-2] + (
406
+ self.num_attention_heads * self.attention_head_size * 2,
407
+ )
408
+ context_layer = context_layer.view(*new_context_layer_shape)
409
+
410
+ outputs = (context_layer, attention_probs) if output_attentions else (context_layer,)
411
+ return outputs
412
+
413
+
414
+ class ConvBertSelfOutput(nn.Module):
415
+ def __init__(self, config):
416
+ super().__init__()
417
+ self.dense = nn.Linear(config.hidden_size, config.hidden_size)
418
+ self.LayerNorm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps)
419
+ self.dropout = nn.Dropout(config.hidden_dropout_prob)
420
+
421
+ def forward(self, hidden_states: torch.Tensor, input_tensor: torch.Tensor) -> torch.Tensor:
422
+ hidden_states = self.dense(hidden_states)
423
+ hidden_states = self.dropout(hidden_states)
424
+ hidden_states = self.LayerNorm(hidden_states + input_tensor)
425
+ return hidden_states
426
+
427
+
428
+ class ConvBertAttention(nn.Module):
429
+ def __init__(self, config):
430
+ super().__init__()
431
+ self.self = ConvBertSelfAttention(config)
432
+ self.output = ConvBertSelfOutput(config)
433
+ self.pruned_heads = set()
434
+
435
+ def prune_heads(self, heads):
436
+ if len(heads) == 0:
437
+ return
438
+ heads, index = find_pruneable_heads_and_indices(
439
+ heads, self.self.num_attention_heads, self.self.attention_head_size, self.pruned_heads
440
+ )
441
+
442
+ # Prune linear layers
443
+ self.self.query = prune_linear_layer(self.self.query, index)
444
+ self.self.key = prune_linear_layer(self.self.key, index)
445
+ self.self.value = prune_linear_layer(self.self.value, index)
446
+ self.output.dense = prune_linear_layer(self.output.dense, index, dim=1)
447
+
448
+ # Update hyper params and store pruned heads
449
+ self.self.num_attention_heads = self.self.num_attention_heads - len(heads)
450
+ self.self.all_head_size = self.self.attention_head_size * self.self.num_attention_heads
451
+ self.pruned_heads = self.pruned_heads.union(heads)
452
+
453
+ def forward(
454
+ self,
455
+ hidden_states: torch.Tensor,
456
+ attention_mask: Optional[torch.FloatTensor] = None,
457
+ head_mask: Optional[torch.FloatTensor] = None,
458
+ encoder_hidden_states: Optional[torch.Tensor] = None,
459
+ output_attentions: Optional[bool] = False,
460
+ ) -> Tuple[torch.Tensor, Optional[torch.FloatTensor]]:
461
+ self_outputs = self.self(
462
+ hidden_states,
463
+ attention_mask,
464
+ head_mask,
465
+ encoder_hidden_states,
466
+ output_attentions,
467
+ )
468
+ attention_output = self.output(self_outputs[0], hidden_states)
469
+ outputs = (attention_output,) + self_outputs[1:] # add attentions if we output them
470
+ return outputs
471
+
472
+
473
+ class GroupedLinearLayer(nn.Module):
474
+ def __init__(self, input_size, output_size, num_groups):
475
+ super().__init__()
476
+ self.input_size = input_size
477
+ self.output_size = output_size
478
+ self.num_groups = num_groups
479
+ self.group_in_dim = self.input_size // self.num_groups
480
+ self.group_out_dim = self.output_size // self.num_groups
481
+ self.weight = nn.Parameter(torch.empty(self.num_groups, self.group_in_dim, self.group_out_dim))
482
+ self.bias = nn.Parameter(torch.empty(output_size))
483
+
484
+ def forward(self, hidden_states: torch.Tensor) -> torch.Tensor:
485
+ batch_size = list(hidden_states.size())[0]
486
+ x = torch.reshape(hidden_states, [-1, self.num_groups, self.group_in_dim])
487
+ x = x.permute(1, 0, 2)
488
+ x = torch.matmul(x, self.weight)
489
+ x = x.permute(1, 0, 2)
490
+ x = torch.reshape(x, [batch_size, -1, self.output_size])
491
+ x = x + self.bias
492
+ return x
493
+
494
+
495
+ class ConvBertIntermediate(nn.Module):
496
+ def __init__(self, config):
497
+ super().__init__()
498
+ if config.num_groups == 1:
499
+ self.dense = nn.Linear(config.hidden_size, config.intermediate_size)
500
+ else:
501
+ self.dense = GroupedLinearLayer(
502
+ input_size=config.hidden_size, output_size=config.intermediate_size, num_groups=config.num_groups
503
+ )
504
+ if isinstance(config.hidden_act, str):
505
+ self.intermediate_act_fn = ACT2FN[config.hidden_act]
506
+ else:
507
+ self.intermediate_act_fn = config.hidden_act
508
+
509
+ def forward(self, hidden_states: torch.Tensor) -> torch.Tensor:
510
+ hidden_states = self.dense(hidden_states)
511
+ hidden_states = self.intermediate_act_fn(hidden_states)
512
+ return hidden_states
513
+
514
+
515
+ class ConvBertOutput(nn.Module):
516
+ def __init__(self, config):
517
+ super().__init__()
518
+ if config.num_groups == 1:
519
+ self.dense = nn.Linear(config.intermediate_size, config.hidden_size)
520
+ else:
521
+ self.dense = GroupedLinearLayer(
522
+ input_size=config.intermediate_size, output_size=config.hidden_size, num_groups=config.num_groups
523
+ )
524
+ self.LayerNorm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps)
525
+ self.dropout = nn.Dropout(config.hidden_dropout_prob)
526
+
527
+ def forward(self, hidden_states: torch.Tensor, input_tensor: torch.Tensor) -> torch.Tensor:
528
+ hidden_states = self.dense(hidden_states)
529
+ hidden_states = self.dropout(hidden_states)
530
+ hidden_states = self.LayerNorm(hidden_states + input_tensor)
531
+ return hidden_states
532
+
533
+
534
+ class ConvBertLayer(nn.Module):
535
+ def __init__(self, config):
536
+ super().__init__()
537
+ self.chunk_size_feed_forward = config.chunk_size_feed_forward
538
+ self.seq_len_dim = 1
539
+ self.attention = ConvBertAttention(config)
540
+ self.is_decoder = config.is_decoder
541
+ self.add_cross_attention = config.add_cross_attention
542
+ if self.add_cross_attention:
543
+ if not self.is_decoder:
544
+ raise TypeError(f"{self} should be used as a decoder model if cross attention is added")
545
+ self.crossattention = ConvBertAttention(config)
546
+ self.intermediate = ConvBertIntermediate(config)
547
+ self.output = ConvBertOutput(config)
548
+
549
+ def forward(
550
+ self,
551
+ hidden_states: torch.Tensor,
552
+ attention_mask: Optional[torch.FloatTensor] = None,
553
+ head_mask: Optional[torch.FloatTensor] = None,
554
+ encoder_hidden_states: Optional[torch.Tensor] = None,
555
+ encoder_attention_mask: Optional[torch.Tensor] = None,
556
+ output_attentions: Optional[bool] = False,
557
+ ) -> Tuple[torch.Tensor, Optional[torch.FloatTensor]]:
558
+ self_attention_outputs = self.attention(
559
+ hidden_states,
560
+ attention_mask,
561
+ head_mask,
562
+ output_attentions=output_attentions,
563
+ )
564
+ attention_output = self_attention_outputs[0]
565
+ outputs = self_attention_outputs[1:] # add self attentions if we output attention weights
566
+
567
+ if self.is_decoder and encoder_hidden_states is not None:
568
+ if not hasattr(self, "crossattention"):
569
+ raise AttributeError(
570
+ f"If `encoder_hidden_states` are passed, {self} has to be instantiated with cross-attention layers"
571
+ " by setting `config.add_cross_attention=True`"
572
+ )
573
+ cross_attention_outputs = self.crossattention(
574
+ attention_output,
575
+ encoder_attention_mask,
576
+ head_mask,
577
+ encoder_hidden_states,
578
+ output_attentions,
579
+ )
580
+ attention_output = cross_attention_outputs[0]
581
+ outputs = outputs + cross_attention_outputs[1:] # add cross attentions if we output attention weights
582
+
583
+ layer_output = apply_chunking_to_forward(
584
+ self.feed_forward_chunk, self.chunk_size_feed_forward, self.seq_len_dim, attention_output
585
+ )
586
+ outputs = (layer_output,) + outputs
587
+ return outputs
588
+
589
+ def feed_forward_chunk(self, attention_output):
590
+ intermediate_output = self.intermediate(attention_output)
591
+ layer_output = self.output(intermediate_output, attention_output)
592
+ return layer_output
593
+
594
+
595
+ class ConvBertEncoder(nn.Module):
596
+ def __init__(self, config):
597
+ super().__init__()
598
+ self.config = config
599
+ self.layer = nn.ModuleList([ConvBertLayer(config) for _ in range(config.num_hidden_layers)])
600
+ self.gradient_checkpointing = False
601
+
602
+ def forward(
603
+ self,
604
+ hidden_states: torch.Tensor,
605
+ attention_mask: Optional[torch.FloatTensor] = None,
606
+ head_mask: Optional[torch.FloatTensor] = None,
607
+ encoder_hidden_states: Optional[torch.Tensor] = None,
608
+ encoder_attention_mask: Optional[torch.Tensor] = None,
609
+ output_attentions: Optional[bool] = False,
610
+ output_hidden_states: Optional[bool] = False,
611
+ return_dict: Optional[bool] = True,
612
+ ) -> Union[Tuple, BaseModelOutputWithCrossAttentions]:
613
+ all_hidden_states = () if output_hidden_states else None
614
+ all_self_attentions = () if output_attentions else None
615
+ all_cross_attentions = () if output_attentions and self.config.add_cross_attention else None
616
+ for i, layer_module in enumerate(self.layer):
617
+ if output_hidden_states:
618
+ all_hidden_states = all_hidden_states + (hidden_states,)
619
+
620
+ layer_head_mask = head_mask[i] if head_mask is not None else None
621
+
622
+ if self.gradient_checkpointing and self.training:
623
+ layer_outputs = self._gradient_checkpointing_func(
624
+ layer_module.__call__,
625
+ hidden_states,
626
+ attention_mask,
627
+ layer_head_mask,
628
+ encoder_hidden_states,
629
+ encoder_attention_mask,
630
+ output_attentions,
631
+ )
632
+ else:
633
+ layer_outputs = layer_module(
634
+ hidden_states,
635
+ attention_mask,
636
+ layer_head_mask,
637
+ encoder_hidden_states,
638
+ encoder_attention_mask,
639
+ output_attentions,
640
+ )
641
+ hidden_states = layer_outputs[0]
642
+ if output_attentions:
643
+ all_self_attentions = all_self_attentions + (layer_outputs[1],)
644
+ if self.config.add_cross_attention:
645
+ all_cross_attentions = all_cross_attentions + (layer_outputs[2],)
646
+
647
+ if output_hidden_states:
648
+ all_hidden_states = all_hidden_states + (hidden_states,)
649
+
650
+ if not return_dict:
651
+ return tuple(
652
+ v
653
+ for v in [hidden_states, all_hidden_states, all_self_attentions, all_cross_attentions]
654
+ if v is not None
655
+ )
656
+ return BaseModelOutputWithCrossAttentions(
657
+ last_hidden_state=hidden_states,
658
+ hidden_states=all_hidden_states,
659
+ attentions=all_self_attentions,
660
+ cross_attentions=all_cross_attentions,
661
+ )
662
+
663
+
664
+ class ConvBertPredictionHeadTransform(nn.Module):
665
+ def __init__(self, config):
666
+ super().__init__()
667
+ self.dense = nn.Linear(config.hidden_size, config.hidden_size)
668
+ if isinstance(config.hidden_act, str):
669
+ self.transform_act_fn = ACT2FN[config.hidden_act]
670
+ else:
671
+ self.transform_act_fn = config.hidden_act
672
+ self.LayerNorm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps)
673
+
674
+ def forward(self, hidden_states: torch.Tensor) -> torch.Tensor:
675
+ hidden_states = self.dense(hidden_states)
676
+ hidden_states = self.transform_act_fn(hidden_states)
677
+ hidden_states = self.LayerNorm(hidden_states)
678
+ return hidden_states
679
+
680
+
681
+ CONVBERT_START_DOCSTRING = r"""
682
+ This model is a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) sub-class. Use
683
+ it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage and
684
+ behavior.
685
+
686
+ Parameters:
687
+ config ([`ConvBertConfig`]): Model configuration class with all the parameters of the model.
688
+ Initializing with a config file does not load the weights associated with the model, only the
689
+ configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights.
690
+ """
691
+
692
+ CONVBERT_INPUTS_DOCSTRING = r"""
693
+ Args:
694
+ input_ids (`torch.LongTensor` of shape `({0})`):
695
+ Indices of input sequence tokens in the vocabulary.
696
+
697
+ Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and
698
+ [`PreTrainedTokenizer.__call__`] for details.
699
+
700
+ [What are input IDs?](../glossary#input-ids)
701
+ attention_mask (`torch.FloatTensor` of shape `({0})`, *optional*):
702
+ Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`:
703
+
704
+
705
+ - 1 for tokens that are **not masked**,
706
+ - 0 for tokens that are **masked**.
707
+
708
+ [What are attention masks?](../glossary#attention-mask)
709
+ token_type_ids (`torch.LongTensor` of shape `({0})`, *optional*):
710
+ Segment token indices to indicate first and second portions of the inputs. Indices are selected in `[0,
711
+ 1]`:
712
+
713
+
714
+ - 0 corresponds to a *sentence A* token,
715
+ - 1 corresponds to a *sentence B* token.
716
+
717
+ [What are token type IDs?](../glossary#token-type-ids)
718
+ position_ids (`torch.LongTensor` of shape `({0})`, *optional*):
719
+ Indices of positions of each input sequence tokens in the position embeddings. Selected in the range `[0,
720
+ config.max_position_embeddings - 1]`.
721
+
722
+ [What are position IDs?](../glossary#position-ids)
723
+ head_mask (`torch.FloatTensor` of shape `(num_heads,)` or `(num_layers, num_heads)`, *optional*):
724
+ Mask to nullify selected heads of the self-attention modules. Mask values selected in `[0, 1]`:
725
+
726
+
727
+ - 1 indicates the head is **not masked**,
728
+ - 0 indicates the head is **masked**.
729
+
730
+ inputs_embeds (`torch.FloatTensor` of shape `({0}, hidden_size)`, *optional*):
731
+ Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. This
732
+ is useful if you want more control over how to convert *input_ids* indices into associated vectors than the
733
+ model's internal embedding lookup matrix.
734
+ output_attentions (`bool`, *optional*):
735
+ Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned
736
+ tensors for more detail.
737
+ output_hidden_states (`bool`, *optional*):
738
+ Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
739
+ more detail.
740
+ return_dict (`bool`, *optional*):
741
+ Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
742
+ """
743
+
744
+
745
+ @add_start_docstrings(
746
+ "The bare ConvBERT Model transformer outputting raw hidden-states without any specific head on top.",
747
+ CONVBERT_START_DOCSTRING,
748
+ )
749
+ class ConvBertModel(ConvBertPreTrainedModel):
750
+ def __init__(self, config):
751
+ super().__init__(config)
752
+ self.embeddings = ConvBertEmbeddings(config)
753
+
754
+ if config.embedding_size != config.hidden_size:
755
+ self.embeddings_project = nn.Linear(config.embedding_size, config.hidden_size)
756
+
757
+ self.encoder = ConvBertEncoder(config)
758
+ self.config = config
759
+ # Initialize weights and apply final processing
760
+ self.post_init()
761
+
762
+ def get_input_embeddings(self):
763
+ return self.embeddings.word_embeddings
764
+
765
+ def set_input_embeddings(self, value):
766
+ self.embeddings.word_embeddings = value
767
+
768
+ def _prune_heads(self, heads_to_prune):
769
+ """
770
+ Prunes heads of the model. heads_to_prune: dict of {layer_num: list of heads to prune in this layer} See base
771
+ class PreTrainedModel
772
+ """
773
+ for layer, heads in heads_to_prune.items():
774
+ self.encoder.layer[layer].attention.prune_heads(heads)
775
+
776
+ @add_start_docstrings_to_model_forward(CONVBERT_INPUTS_DOCSTRING.format("batch_size, sequence_length"))
777
+ @add_code_sample_docstrings(
778
+ checkpoint=_CHECKPOINT_FOR_DOC,
779
+ output_type=BaseModelOutputWithCrossAttentions,
780
+ config_class=_CONFIG_FOR_DOC,
781
+ )
782
+ def forward(
783
+ self,
784
+ input_ids: Optional[torch.LongTensor] = None,
785
+ attention_mask: Optional[torch.FloatTensor] = None,
786
+ token_type_ids: Optional[torch.LongTensor] = None,
787
+ position_ids: Optional[torch.LongTensor] = None,
788
+ head_mask: Optional[torch.FloatTensor] = None,
789
+ inputs_embeds: Optional[torch.FloatTensor] = None,
790
+ output_attentions: Optional[bool] = None,
791
+ output_hidden_states: Optional[bool] = None,
792
+ return_dict: Optional[bool] = None,
793
+ ) -> Union[Tuple, BaseModelOutputWithCrossAttentions]:
794
+ output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
795
+ output_hidden_states = (
796
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
797
+ )
798
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
799
+
800
+ if input_ids is not None and inputs_embeds is not None:
801
+ raise ValueError("You cannot specify both input_ids and inputs_embeds at the same time")
802
+ elif input_ids is not None:
803
+ self.warn_if_padding_and_no_attention_mask(input_ids, attention_mask)
804
+ input_shape = input_ids.size()
805
+ elif inputs_embeds is not None:
806
+ input_shape = inputs_embeds.size()[:-1]
807
+ else:
808
+ raise ValueError("You have to specify either input_ids or inputs_embeds")
809
+
810
+ batch_size, seq_length = input_shape
811
+ device = input_ids.device if input_ids is not None else inputs_embeds.device
812
+
813
+ if attention_mask is None:
814
+ attention_mask = torch.ones(input_shape, device=device)
815
+ if token_type_ids is None:
816
+ if hasattr(self.embeddings, "token_type_ids"):
817
+ buffered_token_type_ids = self.embeddings.token_type_ids[:, :seq_length]
818
+ buffered_token_type_ids_expanded = buffered_token_type_ids.expand(batch_size, seq_length)
819
+ token_type_ids = buffered_token_type_ids_expanded
820
+ else:
821
+ token_type_ids = torch.zeros(input_shape, dtype=torch.long, device=device)
822
+
823
+ extended_attention_mask = self.get_extended_attention_mask(attention_mask, input_shape)
824
+ head_mask = self.get_head_mask(head_mask, self.config.num_hidden_layers)
825
+
826
+ hidden_states = self.embeddings(
827
+ input_ids=input_ids, position_ids=position_ids, token_type_ids=token_type_ids, inputs_embeds=inputs_embeds
828
+ )
829
+
830
+ if hasattr(self, "embeddings_project"):
831
+ hidden_states = self.embeddings_project(hidden_states)
832
+
833
+ hidden_states = self.encoder(
834
+ hidden_states,
835
+ attention_mask=extended_attention_mask,
836
+ head_mask=head_mask,
837
+ output_attentions=output_attentions,
838
+ output_hidden_states=output_hidden_states,
839
+ return_dict=return_dict,
840
+ )
841
+
842
+ return hidden_states
843
+
844
+
845
+ class ConvBertGeneratorPredictions(nn.Module):
846
+ """Prediction module for the generator, made up of two dense layers."""
847
+
848
+ def __init__(self, config):
849
+ super().__init__()
850
+
851
+ self.activation = get_activation("gelu")
852
+ self.LayerNorm = nn.LayerNorm(config.embedding_size, eps=config.layer_norm_eps)
853
+ self.dense = nn.Linear(config.hidden_size, config.embedding_size)
854
+
855
+ def forward(self, generator_hidden_states: torch.FloatTensor) -> torch.FloatTensor:
856
+ hidden_states = self.dense(generator_hidden_states)
857
+ hidden_states = self.activation(hidden_states)
858
+ hidden_states = self.LayerNorm(hidden_states)
859
+
860
+ return hidden_states
861
+
862
+
863
+ @add_start_docstrings("""ConvBERT Model with a `language modeling` head on top.""", CONVBERT_START_DOCSTRING)
864
+ class ConvBertForMaskedLM(ConvBertPreTrainedModel):
865
+ _tied_weights_keys = ["generator.lm_head.weight"]
866
+
867
+ def __init__(self, config):
868
+ super().__init__(config)
869
+
870
+ self.convbert = ConvBertModel(config)
871
+ self.generator_predictions = ConvBertGeneratorPredictions(config)
872
+
873
+ self.generator_lm_head = nn.Linear(config.embedding_size, config.vocab_size)
874
+ # Initialize weights and apply final processing
875
+ self.post_init()
876
+
877
+ def get_output_embeddings(self):
878
+ return self.generator_lm_head
879
+
880
+ def set_output_embeddings(self, word_embeddings):
881
+ self.generator_lm_head = word_embeddings
882
+
883
+ @add_start_docstrings_to_model_forward(CONVBERT_INPUTS_DOCSTRING.format("batch_size, sequence_length"))
884
+ @add_code_sample_docstrings(
885
+ checkpoint=_CHECKPOINT_FOR_DOC,
886
+ output_type=MaskedLMOutput,
887
+ config_class=_CONFIG_FOR_DOC,
888
+ )
889
+ def forward(
890
+ self,
891
+ input_ids: Optional[torch.LongTensor] = None,
892
+ attention_mask: Optional[torch.FloatTensor] = None,
893
+ token_type_ids: Optional[torch.LongTensor] = None,
894
+ position_ids: Optional[torch.LongTensor] = None,
895
+ head_mask: Optional[torch.FloatTensor] = None,
896
+ inputs_embeds: Optional[torch.FloatTensor] = None,
897
+ labels: Optional[torch.LongTensor] = None,
898
+ output_attentions: Optional[bool] = None,
899
+ output_hidden_states: Optional[bool] = None,
900
+ return_dict: Optional[bool] = None,
901
+ ) -> Union[Tuple, MaskedLMOutput]:
902
+ r"""
903
+ labels (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*):
904
+ Labels for computing the masked language modeling loss. Indices should be in `[-100, 0, ...,
905
+ config.vocab_size]` (see `input_ids` docstring) Tokens with indices set to `-100` are ignored (masked), the
906
+ loss is only computed for the tokens with labels in `[0, ..., config.vocab_size]`
907
+ """
908
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
909
+
910
+ generator_hidden_states = self.convbert(
911
+ input_ids,
912
+ attention_mask,
913
+ token_type_ids,
914
+ position_ids,
915
+ head_mask,
916
+ inputs_embeds,
917
+ output_attentions,
918
+ output_hidden_states,
919
+ return_dict,
920
+ )
921
+ generator_sequence_output = generator_hidden_states[0]
922
+
923
+ prediction_scores = self.generator_predictions(generator_sequence_output)
924
+ prediction_scores = self.generator_lm_head(prediction_scores)
925
+
926
+ loss = None
927
+ # Masked language modeling softmax layer
928
+ if labels is not None:
929
+ loss_fct = nn.CrossEntropyLoss() # -100 index = padding token
930
+ loss = loss_fct(prediction_scores.view(-1, self.config.vocab_size), labels.view(-1))
931
+
932
+ if not return_dict:
933
+ output = (prediction_scores,) + generator_hidden_states[1:]
934
+ return ((loss,) + output) if loss is not None else output
935
+
936
+ return MaskedLMOutput(
937
+ loss=loss,
938
+ logits=prediction_scores,
939
+ hidden_states=generator_hidden_states.hidden_states,
940
+ attentions=generator_hidden_states.attentions,
941
+ )
942
+
943
+
944
+ class ConvBertClassificationHead(nn.Module):
945
+ """Head for sentence-level classification tasks."""
946
+
947
+ def __init__(self, config):
948
+ super().__init__()
949
+ self.dense = nn.Linear(config.hidden_size, config.hidden_size)
950
+ classifier_dropout = (
951
+ config.classifier_dropout if config.classifier_dropout is not None else config.hidden_dropout_prob
952
+ )
953
+ self.dropout = nn.Dropout(classifier_dropout)
954
+ self.out_proj = nn.Linear(config.hidden_size, config.num_labels)
955
+
956
+ self.config = config
957
+
958
+ def forward(self, hidden_states: torch.Tensor, **kwargs) -> torch.Tensor:
959
+ x = hidden_states[:, 0, :] # take <s> token (equiv. to [CLS])
960
+ x = self.dropout(x)
961
+ x = self.dense(x)
962
+ x = ACT2FN[self.config.hidden_act](x)
963
+ x = self.dropout(x)
964
+ x = self.out_proj(x)
965
+ return x
966
+
967
+
968
+ @add_start_docstrings(
969
+ """
970
+ ConvBERT Model transformer with a sequence classification/regression head on top (a linear layer on top of the
971
+ pooled output) e.g. for GLUE tasks.
972
+ """,
973
+ CONVBERT_START_DOCSTRING,
974
+ )
975
+ class ConvBertForSequenceClassification(ConvBertPreTrainedModel):
976
+ def __init__(self, config):
977
+ super().__init__(config)
978
+ self.num_labels = config.num_labels
979
+ self.config = config
980
+ self.convbert = ConvBertModel(config)
981
+ self.classifier = ConvBertClassificationHead(config)
982
+
983
+ # Initialize weights and apply final processing
984
+ self.post_init()
985
+
986
+ @add_start_docstrings_to_model_forward(CONVBERT_INPUTS_DOCSTRING.format("batch_size, sequence_length"))
987
+ @add_code_sample_docstrings(
988
+ checkpoint=_CHECKPOINT_FOR_DOC,
989
+ output_type=SequenceClassifierOutput,
990
+ config_class=_CONFIG_FOR_DOC,
991
+ )
992
+ def forward(
993
+ self,
994
+ input_ids: Optional[torch.LongTensor] = None,
995
+ attention_mask: Optional[torch.FloatTensor] = None,
996
+ token_type_ids: Optional[torch.LongTensor] = None,
997
+ position_ids: Optional[torch.LongTensor] = None,
998
+ head_mask: Optional[torch.FloatTensor] = None,
999
+ inputs_embeds: Optional[torch.FloatTensor] = None,
1000
+ labels: Optional[torch.LongTensor] = None,
1001
+ output_attentions: Optional[bool] = None,
1002
+ output_hidden_states: Optional[bool] = None,
1003
+ return_dict: Optional[bool] = None,
1004
+ ) -> Union[Tuple, SequenceClassifierOutput]:
1005
+ r"""
1006
+ labels (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
1007
+ Labels for computing the sequence classification/regression loss. Indices should be in `[0, ...,
1008
+ config.num_labels - 1]`. If `config.num_labels == 1` a regression loss is computed (Mean-Square loss), If
1009
+ `config.num_labels > 1` a classification loss is computed (Cross-Entropy).
1010
+ """
1011
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
1012
+
1013
+ outputs = self.convbert(
1014
+ input_ids,
1015
+ attention_mask=attention_mask,
1016
+ token_type_ids=token_type_ids,
1017
+ position_ids=position_ids,
1018
+ head_mask=head_mask,
1019
+ inputs_embeds=inputs_embeds,
1020
+ output_attentions=output_attentions,
1021
+ output_hidden_states=output_hidden_states,
1022
+ return_dict=return_dict,
1023
+ )
1024
+
1025
+ sequence_output = outputs[0]
1026
+ logits = self.classifier(sequence_output)
1027
+
1028
+ loss = None
1029
+ if labels is not None:
1030
+ if self.config.problem_type is None:
1031
+ if self.num_labels == 1:
1032
+ self.config.problem_type = "regression"
1033
+ elif self.num_labels > 1 and (labels.dtype == torch.long or labels.dtype == torch.int):
1034
+ self.config.problem_type = "single_label_classification"
1035
+ else:
1036
+ self.config.problem_type = "multi_label_classification"
1037
+
1038
+ if self.config.problem_type == "regression":
1039
+ loss_fct = MSELoss()
1040
+ if self.num_labels == 1:
1041
+ loss = loss_fct(logits.squeeze(), labels.squeeze())
1042
+ else:
1043
+ loss = loss_fct(logits, labels)
1044
+ elif self.config.problem_type == "single_label_classification":
1045
+ loss_fct = CrossEntropyLoss()
1046
+ loss = loss_fct(logits.view(-1, self.num_labels), labels.view(-1))
1047
+ elif self.config.problem_type == "multi_label_classification":
1048
+ loss_fct = BCEWithLogitsLoss()
1049
+ loss = loss_fct(logits, labels)
1050
+
1051
+ if not return_dict:
1052
+ output = (logits,) + outputs[1:]
1053
+ return ((loss,) + output) if loss is not None else output
1054
+
1055
+ return SequenceClassifierOutput(
1056
+ loss=loss,
1057
+ logits=logits,
1058
+ hidden_states=outputs.hidden_states,
1059
+ attentions=outputs.attentions,
1060
+ )
1061
+
1062
+
1063
+ @add_start_docstrings(
1064
+ """
1065
+ ConvBERT Model with a multiple choice classification head on top (a linear layer on top of the pooled output and a
1066
+ softmax) e.g. for RocStories/SWAG tasks.
1067
+ """,
1068
+ CONVBERT_START_DOCSTRING,
1069
+ )
1070
+ class ConvBertForMultipleChoice(ConvBertPreTrainedModel):
1071
+ def __init__(self, config):
1072
+ super().__init__(config)
1073
+
1074
+ self.convbert = ConvBertModel(config)
1075
+ self.sequence_summary = SequenceSummary(config)
1076
+ self.classifier = nn.Linear(config.hidden_size, 1)
1077
+
1078
+ # Initialize weights and apply final processing
1079
+ self.post_init()
1080
+
1081
+ @add_start_docstrings_to_model_forward(
1082
+ CONVBERT_INPUTS_DOCSTRING.format("batch_size, num_choices, sequence_length")
1083
+ )
1084
+ @add_code_sample_docstrings(
1085
+ checkpoint=_CHECKPOINT_FOR_DOC,
1086
+ output_type=MultipleChoiceModelOutput,
1087
+ config_class=_CONFIG_FOR_DOC,
1088
+ )
1089
+ def forward(
1090
+ self,
1091
+ input_ids: Optional[torch.LongTensor] = None,
1092
+ attention_mask: Optional[torch.FloatTensor] = None,
1093
+ token_type_ids: Optional[torch.LongTensor] = None,
1094
+ position_ids: Optional[torch.LongTensor] = None,
1095
+ head_mask: Optional[torch.FloatTensor] = None,
1096
+ inputs_embeds: Optional[torch.FloatTensor] = None,
1097
+ labels: Optional[torch.LongTensor] = None,
1098
+ output_attentions: Optional[bool] = None,
1099
+ output_hidden_states: Optional[bool] = None,
1100
+ return_dict: Optional[bool] = None,
1101
+ ) -> Union[Tuple, MultipleChoiceModelOutput]:
1102
+ r"""
1103
+ labels (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
1104
+ Labels for computing the multiple choice classification loss. Indices should be in `[0, ...,
1105
+ num_choices-1]` where `num_choices` is the size of the second dimension of the input tensors. (See
1106
+ `input_ids` above)
1107
+ """
1108
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
1109
+ num_choices = input_ids.shape[1] if input_ids is not None else inputs_embeds.shape[1]
1110
+
1111
+ input_ids = input_ids.view(-1, input_ids.size(-1)) if input_ids is not None else None
1112
+ attention_mask = attention_mask.view(-1, attention_mask.size(-1)) if attention_mask is not None else None
1113
+ token_type_ids = token_type_ids.view(-1, token_type_ids.size(-1)) if token_type_ids is not None else None
1114
+ position_ids = position_ids.view(-1, position_ids.size(-1)) if position_ids is not None else None
1115
+ inputs_embeds = (
1116
+ inputs_embeds.view(-1, inputs_embeds.size(-2), inputs_embeds.size(-1))
1117
+ if inputs_embeds is not None
1118
+ else None
1119
+ )
1120
+
1121
+ outputs = self.convbert(
1122
+ input_ids,
1123
+ attention_mask=attention_mask,
1124
+ token_type_ids=token_type_ids,
1125
+ position_ids=position_ids,
1126
+ head_mask=head_mask,
1127
+ inputs_embeds=inputs_embeds,
1128
+ output_attentions=output_attentions,
1129
+ output_hidden_states=output_hidden_states,
1130
+ return_dict=return_dict,
1131
+ )
1132
+
1133
+ sequence_output = outputs[0]
1134
+
1135
+ pooled_output = self.sequence_summary(sequence_output)
1136
+ logits = self.classifier(pooled_output)
1137
+ reshaped_logits = logits.view(-1, num_choices)
1138
+
1139
+ loss = None
1140
+ if labels is not None:
1141
+ loss_fct = CrossEntropyLoss()
1142
+ loss = loss_fct(reshaped_logits, labels)
1143
+
1144
+ if not return_dict:
1145
+ output = (reshaped_logits,) + outputs[1:]
1146
+ return ((loss,) + output) if loss is not None else output
1147
+
1148
+ return MultipleChoiceModelOutput(
1149
+ loss=loss,
1150
+ logits=reshaped_logits,
1151
+ hidden_states=outputs.hidden_states,
1152
+ attentions=outputs.attentions,
1153
+ )
1154
+
1155
+
1156
+ @add_start_docstrings(
1157
+ """
1158
+ ConvBERT Model with a token classification head on top (a linear layer on top of the hidden-states output) e.g. for
1159
+ Named-Entity-Recognition (NER) tasks.
1160
+ """,
1161
+ CONVBERT_START_DOCSTRING,
1162
+ )
1163
+ class ConvBertForTokenClassification(ConvBertPreTrainedModel):
1164
+ def __init__(self, config):
1165
+ super().__init__(config)
1166
+ self.num_labels = config.num_labels
1167
+
1168
+ self.convbert = ConvBertModel(config)
1169
+ classifier_dropout = (
1170
+ config.classifier_dropout if config.classifier_dropout is not None else config.hidden_dropout_prob
1171
+ )
1172
+ self.dropout = nn.Dropout(classifier_dropout)
1173
+ self.classifier = nn.Linear(config.hidden_size, config.num_labels)
1174
+
1175
+ # Initialize weights and apply final processing
1176
+ self.post_init()
1177
+
1178
+ @add_start_docstrings_to_model_forward(CONVBERT_INPUTS_DOCSTRING.format("batch_size, sequence_length"))
1179
+ @add_code_sample_docstrings(
1180
+ checkpoint=_CHECKPOINT_FOR_DOC,
1181
+ output_type=TokenClassifierOutput,
1182
+ config_class=_CONFIG_FOR_DOC,
1183
+ )
1184
+ def forward(
1185
+ self,
1186
+ input_ids: Optional[torch.LongTensor] = None,
1187
+ attention_mask: Optional[torch.FloatTensor] = None,
1188
+ token_type_ids: Optional[torch.LongTensor] = None,
1189
+ position_ids: Optional[torch.LongTensor] = None,
1190
+ head_mask: Optional[torch.FloatTensor] = None,
1191
+ inputs_embeds: Optional[torch.FloatTensor] = None,
1192
+ labels: Optional[torch.LongTensor] = None,
1193
+ output_attentions: Optional[bool] = None,
1194
+ output_hidden_states: Optional[bool] = None,
1195
+ return_dict: Optional[bool] = None,
1196
+ ) -> Union[Tuple, TokenClassifierOutput]:
1197
+ r"""
1198
+ labels (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*):
1199
+ Labels for computing the token classification loss. Indices should be in `[0, ..., config.num_labels - 1]`.
1200
+ """
1201
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
1202
+
1203
+ outputs = self.convbert(
1204
+ input_ids,
1205
+ attention_mask=attention_mask,
1206
+ token_type_ids=token_type_ids,
1207
+ position_ids=position_ids,
1208
+ head_mask=head_mask,
1209
+ inputs_embeds=inputs_embeds,
1210
+ output_attentions=output_attentions,
1211
+ output_hidden_states=output_hidden_states,
1212
+ return_dict=return_dict,
1213
+ )
1214
+
1215
+ sequence_output = outputs[0]
1216
+
1217
+ sequence_output = self.dropout(sequence_output)
1218
+ logits = self.classifier(sequence_output)
1219
+
1220
+ loss = None
1221
+ if labels is not None:
1222
+ loss_fct = CrossEntropyLoss()
1223
+ loss = loss_fct(logits.view(-1, self.num_labels), labels.view(-1))
1224
+
1225
+ if not return_dict:
1226
+ output = (logits,) + outputs[1:]
1227
+ return ((loss,) + output) if loss is not None else output
1228
+
1229
+ return TokenClassifierOutput(
1230
+ loss=loss,
1231
+ logits=logits,
1232
+ hidden_states=outputs.hidden_states,
1233
+ attentions=outputs.attentions,
1234
+ )
1235
+
1236
+
1237
+ @add_start_docstrings(
1238
+ """
1239
+ ConvBERT Model with a span classification head on top for extractive question-answering tasks like SQuAD (a linear
1240
+ layers on top of the hidden-states output to compute `span start logits` and `span end logits`).
1241
+ """,
1242
+ CONVBERT_START_DOCSTRING,
1243
+ )
1244
+ class ConvBertForQuestionAnswering(ConvBertPreTrainedModel):
1245
+ def __init__(self, config):
1246
+ super().__init__(config)
1247
+
1248
+ self.num_labels = config.num_labels
1249
+ self.convbert = ConvBertModel(config)
1250
+ self.qa_outputs = nn.Linear(config.hidden_size, config.num_labels)
1251
+
1252
+ # Initialize weights and apply final processing
1253
+ self.post_init()
1254
+
1255
+ @add_start_docstrings_to_model_forward(CONVBERT_INPUTS_DOCSTRING.format("batch_size, sequence_length"))
1256
+ @add_code_sample_docstrings(
1257
+ checkpoint=_CHECKPOINT_FOR_DOC,
1258
+ output_type=QuestionAnsweringModelOutput,
1259
+ config_class=_CONFIG_FOR_DOC,
1260
+ )
1261
+ def forward(
1262
+ self,
1263
+ input_ids: Optional[torch.LongTensor] = None,
1264
+ attention_mask: Optional[torch.FloatTensor] = None,
1265
+ token_type_ids: Optional[torch.LongTensor] = None,
1266
+ position_ids: Optional[torch.LongTensor] = None,
1267
+ head_mask: Optional[torch.FloatTensor] = None,
1268
+ inputs_embeds: Optional[torch.FloatTensor] = None,
1269
+ start_positions: Optional[torch.LongTensor] = None,
1270
+ end_positions: Optional[torch.LongTensor] = None,
1271
+ output_attentions: Optional[bool] = None,
1272
+ output_hidden_states: Optional[bool] = None,
1273
+ return_dict: Optional[bool] = None,
1274
+ ) -> Union[Tuple, QuestionAnsweringModelOutput]:
1275
+ r"""
1276
+ start_positions (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
1277
+ Labels for position (index) of the start of the labelled span for computing the token classification loss.
1278
+ Positions are clamped to the length of the sequence (`sequence_length`). Position outside of the sequence
1279
+ are not taken into account for computing the loss.
1280
+ end_positions (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
1281
+ Labels for position (index) of the end of the labelled span for computing the token classification loss.
1282
+ Positions are clamped to the length of the sequence (`sequence_length`). Position outside of the sequence
1283
+ are not taken into account for computing the loss.
1284
+ """
1285
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
1286
+
1287
+ outputs = self.convbert(
1288
+ input_ids,
1289
+ attention_mask=attention_mask,
1290
+ token_type_ids=token_type_ids,
1291
+ position_ids=position_ids,
1292
+ head_mask=head_mask,
1293
+ inputs_embeds=inputs_embeds,
1294
+ output_attentions=output_attentions,
1295
+ output_hidden_states=output_hidden_states,
1296
+ return_dict=return_dict,
1297
+ )
1298
+
1299
+ sequence_output = outputs[0]
1300
+
1301
+ logits = self.qa_outputs(sequence_output)
1302
+ start_logits, end_logits = logits.split(1, dim=-1)
1303
+ start_logits = start_logits.squeeze(-1).contiguous()
1304
+ end_logits = end_logits.squeeze(-1).contiguous()
1305
+
1306
+ total_loss = None
1307
+ if start_positions is not None and end_positions is not None:
1308
+ # If we are on multi-GPU, split add a dimension
1309
+ if len(start_positions.size()) > 1:
1310
+ start_positions = start_positions.squeeze(-1)
1311
+ if len(end_positions.size()) > 1:
1312
+ end_positions = end_positions.squeeze(-1)
1313
+ # sometimes the start/end positions are outside our model inputs, we ignore these terms
1314
+ ignored_index = start_logits.size(1)
1315
+ start_positions = start_positions.clamp(0, ignored_index)
1316
+ end_positions = end_positions.clamp(0, ignored_index)
1317
+
1318
+ loss_fct = CrossEntropyLoss(ignore_index=ignored_index)
1319
+ start_loss = loss_fct(start_logits, start_positions)
1320
+ end_loss = loss_fct(end_logits, end_positions)
1321
+ total_loss = (start_loss + end_loss) / 2
1322
+
1323
+ if not return_dict:
1324
+ output = (start_logits, end_logits) + outputs[1:]
1325
+ return ((total_loss,) + output) if total_loss is not None else output
1326
+
1327
+ return QuestionAnsweringModelOutput(
1328
+ loss=total_loss,
1329
+ start_logits=start_logits,
1330
+ end_logits=end_logits,
1331
+ hidden_states=outputs.hidden_states,
1332
+ attentions=outputs.attentions,
1333
+ )
1334
+
1335
+
1336
+ __all__ = [
1337
+ "ConvBertForMaskedLM",
1338
+ "ConvBertForMultipleChoice",
1339
+ "ConvBertForQuestionAnswering",
1340
+ "ConvBertForSequenceClassification",
1341
+ "ConvBertForTokenClassification",
1342
+ "ConvBertLayer",
1343
+ "ConvBertModel",
1344
+ "ConvBertPreTrainedModel",
1345
+ "load_tf_weights_in_convbert",
1346
+ ]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convbert/modeling_tf_convbert.py ADDED
@@ -0,0 +1,1476 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2021 The HuggingFace Inc. team. All rights reserved.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """TF 2.0 ConvBERT model."""
16
+
17
+ from __future__ import annotations
18
+
19
+ from typing import Optional, Tuple, Union
20
+
21
+ import numpy as np
22
+ import tensorflow as tf
23
+
24
+ from ...activations_tf import get_tf_activation
25
+ from ...modeling_tf_outputs import (
26
+ TFBaseModelOutput,
27
+ TFMaskedLMOutput,
28
+ TFMultipleChoiceModelOutput,
29
+ TFQuestionAnsweringModelOutput,
30
+ TFSequenceClassifierOutput,
31
+ TFTokenClassifierOutput,
32
+ )
33
+ from ...modeling_tf_utils import (
34
+ TFMaskedLanguageModelingLoss,
35
+ TFModelInputType,
36
+ TFMultipleChoiceLoss,
37
+ TFPreTrainedModel,
38
+ TFQuestionAnsweringLoss,
39
+ TFSequenceClassificationLoss,
40
+ TFSequenceSummary,
41
+ TFTokenClassificationLoss,
42
+ get_initializer,
43
+ keras,
44
+ keras_serializable,
45
+ unpack_inputs,
46
+ )
47
+ from ...tf_utils import check_embeddings_within_bounds, shape_list, stable_softmax
48
+ from ...utils import (
49
+ add_code_sample_docstrings,
50
+ add_start_docstrings,
51
+ add_start_docstrings_to_model_forward,
52
+ logging,
53
+ )
54
+ from .configuration_convbert import ConvBertConfig
55
+
56
+
57
+ logger = logging.get_logger(__name__)
58
+
59
+ _CHECKPOINT_FOR_DOC = "YituTech/conv-bert-base"
60
+ _CONFIG_FOR_DOC = "ConvBertConfig"
61
+
62
+
63
+ # Copied from transformers.models.albert.modeling_tf_albert.TFAlbertEmbeddings with Albert->ConvBert
64
+ class TFConvBertEmbeddings(keras.layers.Layer):
65
+ """Construct the embeddings from word, position and token_type embeddings."""
66
+
67
+ def __init__(self, config: ConvBertConfig, **kwargs):
68
+ super().__init__(**kwargs)
69
+
70
+ self.config = config
71
+ self.embedding_size = config.embedding_size
72
+ self.max_position_embeddings = config.max_position_embeddings
73
+ self.initializer_range = config.initializer_range
74
+ self.LayerNorm = keras.layers.LayerNormalization(epsilon=config.layer_norm_eps, name="LayerNorm")
75
+ self.dropout = keras.layers.Dropout(rate=config.hidden_dropout_prob)
76
+
77
+ def build(self, input_shape=None):
78
+ with tf.name_scope("word_embeddings"):
79
+ self.weight = self.add_weight(
80
+ name="weight",
81
+ shape=[self.config.vocab_size, self.embedding_size],
82
+ initializer=get_initializer(self.initializer_range),
83
+ )
84
+
85
+ with tf.name_scope("token_type_embeddings"):
86
+ self.token_type_embeddings = self.add_weight(
87
+ name="embeddings",
88
+ shape=[self.config.type_vocab_size, self.embedding_size],
89
+ initializer=get_initializer(self.initializer_range),
90
+ )
91
+
92
+ with tf.name_scope("position_embeddings"):
93
+ self.position_embeddings = self.add_weight(
94
+ name="embeddings",
95
+ shape=[self.max_position_embeddings, self.embedding_size],
96
+ initializer=get_initializer(self.initializer_range),
97
+ )
98
+
99
+ if self.built:
100
+ return
101
+ self.built = True
102
+ if getattr(self, "LayerNorm", None) is not None:
103
+ with tf.name_scope(self.LayerNorm.name):
104
+ self.LayerNorm.build([None, None, self.config.embedding_size])
105
+
106
+ # Copied from transformers.models.bert.modeling_tf_bert.TFBertEmbeddings.call
107
+ def call(
108
+ self,
109
+ input_ids: tf.Tensor = None,
110
+ position_ids: tf.Tensor = None,
111
+ token_type_ids: tf.Tensor = None,
112
+ inputs_embeds: tf.Tensor = None,
113
+ past_key_values_length=0,
114
+ training: bool = False,
115
+ ) -> tf.Tensor:
116
+ """
117
+ Applies embedding based on inputs tensor.
118
+
119
+ Returns:
120
+ final_embeddings (`tf.Tensor`): output embedding tensor.
121
+ """
122
+ if input_ids is None and inputs_embeds is None:
123
+ raise ValueError("Need to provide either `input_ids` or `input_embeds`.")
124
+
125
+ if input_ids is not None:
126
+ check_embeddings_within_bounds(input_ids, self.config.vocab_size)
127
+ inputs_embeds = tf.gather(params=self.weight, indices=input_ids)
128
+
129
+ input_shape = shape_list(inputs_embeds)[:-1]
130
+
131
+ if token_type_ids is None:
132
+ token_type_ids = tf.fill(dims=input_shape, value=0)
133
+
134
+ if position_ids is None:
135
+ position_ids = tf.expand_dims(
136
+ tf.range(start=past_key_values_length, limit=input_shape[1] + past_key_values_length), axis=0
137
+ )
138
+
139
+ position_embeds = tf.gather(params=self.position_embeddings, indices=position_ids)
140
+ token_type_embeds = tf.gather(params=self.token_type_embeddings, indices=token_type_ids)
141
+ final_embeddings = inputs_embeds + position_embeds + token_type_embeds
142
+ final_embeddings = self.LayerNorm(inputs=final_embeddings)
143
+ final_embeddings = self.dropout(inputs=final_embeddings, training=training)
144
+
145
+ return final_embeddings
146
+
147
+
148
+ class TFConvBertSelfAttention(keras.layers.Layer):
149
+ def __init__(self, config, **kwargs):
150
+ super().__init__(**kwargs)
151
+
152
+ if config.hidden_size % config.num_attention_heads != 0:
153
+ raise ValueError(
154
+ f"The hidden size ({config.hidden_size}) is not a multiple of the number of attention "
155
+ f"heads ({config.num_attention_heads})"
156
+ )
157
+
158
+ new_num_attention_heads = int(config.num_attention_heads / config.head_ratio)
159
+ if new_num_attention_heads < 1:
160
+ self.head_ratio = config.num_attention_heads
161
+ num_attention_heads = 1
162
+ else:
163
+ num_attention_heads = new_num_attention_heads
164
+ self.head_ratio = config.head_ratio
165
+
166
+ self.num_attention_heads = num_attention_heads
167
+ self.conv_kernel_size = config.conv_kernel_size
168
+
169
+ if config.hidden_size % self.num_attention_heads != 0:
170
+ raise ValueError("hidden_size should be divisible by num_attention_heads")
171
+
172
+ self.attention_head_size = config.hidden_size // config.num_attention_heads
173
+ self.all_head_size = self.num_attention_heads * self.attention_head_size
174
+ self.query = keras.layers.Dense(
175
+ self.all_head_size, kernel_initializer=get_initializer(config.initializer_range), name="query"
176
+ )
177
+ self.key = keras.layers.Dense(
178
+ self.all_head_size, kernel_initializer=get_initializer(config.initializer_range), name="key"
179
+ )
180
+ self.value = keras.layers.Dense(
181
+ self.all_head_size, kernel_initializer=get_initializer(config.initializer_range), name="value"
182
+ )
183
+
184
+ self.key_conv_attn_layer = keras.layers.SeparableConv1D(
185
+ self.all_head_size,
186
+ self.conv_kernel_size,
187
+ padding="same",
188
+ activation=None,
189
+ depthwise_initializer=get_initializer(1 / self.conv_kernel_size),
190
+ pointwise_initializer=get_initializer(config.initializer_range),
191
+ name="key_conv_attn_layer",
192
+ )
193
+
194
+ self.conv_kernel_layer = keras.layers.Dense(
195
+ self.num_attention_heads * self.conv_kernel_size,
196
+ activation=None,
197
+ name="conv_kernel_layer",
198
+ kernel_initializer=get_initializer(config.initializer_range),
199
+ )
200
+
201
+ self.conv_out_layer = keras.layers.Dense(
202
+ self.all_head_size,
203
+ activation=None,
204
+ name="conv_out_layer",
205
+ kernel_initializer=get_initializer(config.initializer_range),
206
+ )
207
+
208
+ self.dropout = keras.layers.Dropout(config.attention_probs_dropout_prob)
209
+ self.config = config
210
+
211
+ def transpose_for_scores(self, x, batch_size):
212
+ # Reshape from [batch_size, seq_length, all_head_size] to [batch_size, seq_length, num_attention_heads, attention_head_size]
213
+ x = tf.reshape(x, (batch_size, -1, self.num_attention_heads, self.attention_head_size))
214
+ return tf.transpose(x, perm=[0, 2, 1, 3])
215
+
216
+ def call(self, hidden_states, attention_mask, head_mask, output_attentions, training=False):
217
+ batch_size = shape_list(hidden_states)[0]
218
+ mixed_query_layer = self.query(hidden_states)
219
+ mixed_key_layer = self.key(hidden_states)
220
+ mixed_value_layer = self.value(hidden_states)
221
+
222
+ mixed_key_conv_attn_layer = self.key_conv_attn_layer(hidden_states)
223
+
224
+ query_layer = self.transpose_for_scores(mixed_query_layer, batch_size)
225
+ key_layer = self.transpose_for_scores(mixed_key_layer, batch_size)
226
+ conv_attn_layer = tf.multiply(mixed_key_conv_attn_layer, mixed_query_layer)
227
+
228
+ conv_kernel_layer = self.conv_kernel_layer(conv_attn_layer)
229
+ conv_kernel_layer = tf.reshape(conv_kernel_layer, [-1, self.conv_kernel_size, 1])
230
+ conv_kernel_layer = stable_softmax(conv_kernel_layer, axis=1)
231
+
232
+ paddings = tf.constant(
233
+ [
234
+ [
235
+ 0,
236
+ 0,
237
+ ],
238
+ [int((self.conv_kernel_size - 1) / 2), int((self.conv_kernel_size - 1) / 2)],
239
+ [0, 0],
240
+ ]
241
+ )
242
+
243
+ conv_out_layer = self.conv_out_layer(hidden_states)
244
+ conv_out_layer = tf.reshape(conv_out_layer, [batch_size, -1, self.all_head_size])
245
+ conv_out_layer = tf.pad(conv_out_layer, paddings, "CONSTANT")
246
+
247
+ unfold_conv_out_layer = tf.stack(
248
+ [
249
+ tf.slice(conv_out_layer, [0, i, 0], [batch_size, shape_list(mixed_query_layer)[1], self.all_head_size])
250
+ for i in range(self.conv_kernel_size)
251
+ ],
252
+ axis=-1,
253
+ )
254
+
255
+ conv_out_layer = tf.reshape(unfold_conv_out_layer, [-1, self.attention_head_size, self.conv_kernel_size])
256
+
257
+ conv_out_layer = tf.matmul(conv_out_layer, conv_kernel_layer)
258
+ conv_out_layer = tf.reshape(conv_out_layer, [-1, self.all_head_size])
259
+
260
+ # Take the dot product between "query" and "key" to get the raw attention scores.
261
+ attention_scores = tf.matmul(
262
+ query_layer, key_layer, transpose_b=True
263
+ ) # (batch size, num_heads, seq_len_q, seq_len_k)
264
+ dk = tf.cast(shape_list(key_layer)[-1], attention_scores.dtype) # scale attention_scores
265
+ attention_scores = attention_scores / tf.math.sqrt(dk)
266
+
267
+ if attention_mask is not None:
268
+ # Apply the attention mask is (precomputed for all layers in TFBertModel call() function)
269
+ attention_scores = attention_scores + attention_mask
270
+
271
+ # Normalize the attention scores to probabilities.
272
+ attention_probs = stable_softmax(attention_scores, axis=-1)
273
+
274
+ # This is actually dropping out entire tokens to attend to, which might
275
+ # seem a bit unusual, but is taken from the original Transformer paper.
276
+ attention_probs = self.dropout(attention_probs, training=training)
277
+
278
+ # Mask heads if we want to
279
+ if head_mask is not None:
280
+ attention_probs = attention_probs * head_mask
281
+
282
+ value_layer = tf.reshape(
283
+ mixed_value_layer, [batch_size, -1, self.num_attention_heads, self.attention_head_size]
284
+ )
285
+ value_layer = tf.transpose(value_layer, [0, 2, 1, 3])
286
+
287
+ context_layer = tf.matmul(attention_probs, value_layer)
288
+ context_layer = tf.transpose(context_layer, perm=[0, 2, 1, 3])
289
+
290
+ conv_out = tf.reshape(conv_out_layer, [batch_size, -1, self.num_attention_heads, self.attention_head_size])
291
+ context_layer = tf.concat([context_layer, conv_out], 2)
292
+ context_layer = tf.reshape(
293
+ context_layer, (batch_size, -1, self.head_ratio * self.all_head_size)
294
+ ) # (batch_size, seq_len_q, all_head_size)
295
+ outputs = (context_layer, attention_probs) if output_attentions else (context_layer,)
296
+
297
+ return outputs
298
+
299
+ def build(self, input_shape=None):
300
+ if self.built:
301
+ return
302
+ self.built = True
303
+ if getattr(self, "query", None) is not None:
304
+ with tf.name_scope(self.query.name):
305
+ self.query.build([None, None, self.config.hidden_size])
306
+ if getattr(self, "key", None) is not None:
307
+ with tf.name_scope(self.key.name):
308
+ self.key.build([None, None, self.config.hidden_size])
309
+ if getattr(self, "value", None) is not None:
310
+ with tf.name_scope(self.value.name):
311
+ self.value.build([None, None, self.config.hidden_size])
312
+ if getattr(self, "key_conv_attn_layer", None) is not None:
313
+ with tf.name_scope(self.key_conv_attn_layer.name):
314
+ self.key_conv_attn_layer.build([None, None, self.config.hidden_size])
315
+ if getattr(self, "conv_kernel_layer", None) is not None:
316
+ with tf.name_scope(self.conv_kernel_layer.name):
317
+ self.conv_kernel_layer.build([None, None, self.all_head_size])
318
+ if getattr(self, "conv_out_layer", None) is not None:
319
+ with tf.name_scope(self.conv_out_layer.name):
320
+ self.conv_out_layer.build([None, None, self.config.hidden_size])
321
+
322
+
323
+ class TFConvBertSelfOutput(keras.layers.Layer):
324
+ def __init__(self, config, **kwargs):
325
+ super().__init__(**kwargs)
326
+
327
+ self.dense = keras.layers.Dense(
328
+ config.hidden_size, kernel_initializer=get_initializer(config.initializer_range), name="dense"
329
+ )
330
+ self.LayerNorm = keras.layers.LayerNormalization(epsilon=config.layer_norm_eps, name="LayerNorm")
331
+ self.dropout = keras.layers.Dropout(config.hidden_dropout_prob)
332
+ self.config = config
333
+
334
+ def call(self, hidden_states, input_tensor, training=False):
335
+ hidden_states = self.dense(hidden_states)
336
+ hidden_states = self.dropout(hidden_states, training=training)
337
+ hidden_states = self.LayerNorm(hidden_states + input_tensor)
338
+
339
+ return hidden_states
340
+
341
+ def build(self, input_shape=None):
342
+ if self.built:
343
+ return
344
+ self.built = True
345
+ if getattr(self, "dense", None) is not None:
346
+ with tf.name_scope(self.dense.name):
347
+ self.dense.build([None, None, self.config.hidden_size])
348
+ if getattr(self, "LayerNorm", None) is not None:
349
+ with tf.name_scope(self.LayerNorm.name):
350
+ self.LayerNorm.build([None, None, self.config.hidden_size])
351
+
352
+
353
+ class TFConvBertAttention(keras.layers.Layer):
354
+ def __init__(self, config, **kwargs):
355
+ super().__init__(**kwargs)
356
+
357
+ self.self_attention = TFConvBertSelfAttention(config, name="self")
358
+ self.dense_output = TFConvBertSelfOutput(config, name="output")
359
+
360
+ def prune_heads(self, heads):
361
+ raise NotImplementedError
362
+
363
+ def call(self, input_tensor, attention_mask, head_mask, output_attentions, training=False):
364
+ self_outputs = self.self_attention(
365
+ input_tensor, attention_mask, head_mask, output_attentions, training=training
366
+ )
367
+ attention_output = self.dense_output(self_outputs[0], input_tensor, training=training)
368
+ outputs = (attention_output,) + self_outputs[1:] # add attentions if we output them
369
+
370
+ return outputs
371
+
372
+ def build(self, input_shape=None):
373
+ if self.built:
374
+ return
375
+ self.built = True
376
+ if getattr(self, "self_attention", None) is not None:
377
+ with tf.name_scope(self.self_attention.name):
378
+ self.self_attention.build(None)
379
+ if getattr(self, "dense_output", None) is not None:
380
+ with tf.name_scope(self.dense_output.name):
381
+ self.dense_output.build(None)
382
+
383
+
384
+ class GroupedLinearLayer(keras.layers.Layer):
385
+ def __init__(self, input_size, output_size, num_groups, kernel_initializer, **kwargs):
386
+ super().__init__(**kwargs)
387
+ self.input_size = input_size
388
+ self.output_size = output_size
389
+ self.num_groups = num_groups
390
+ self.kernel_initializer = kernel_initializer
391
+ self.group_in_dim = self.input_size // self.num_groups
392
+ self.group_out_dim = self.output_size // self.num_groups
393
+
394
+ def build(self, input_shape=None):
395
+ self.kernel = self.add_weight(
396
+ "kernel",
397
+ shape=[self.group_out_dim, self.group_in_dim, self.num_groups],
398
+ initializer=self.kernel_initializer,
399
+ trainable=True,
400
+ )
401
+
402
+ self.bias = self.add_weight(
403
+ "bias", shape=[self.output_size], initializer=self.kernel_initializer, dtype=self.dtype, trainable=True
404
+ )
405
+ super().build(input_shape)
406
+
407
+ def call(self, hidden_states):
408
+ batch_size = shape_list(hidden_states)[0]
409
+ x = tf.transpose(tf.reshape(hidden_states, [-1, self.num_groups, self.group_in_dim]), [1, 0, 2])
410
+ x = tf.matmul(x, tf.transpose(self.kernel, [2, 1, 0]))
411
+ x = tf.transpose(x, [1, 0, 2])
412
+ x = tf.reshape(x, [batch_size, -1, self.output_size])
413
+ x = tf.nn.bias_add(value=x, bias=self.bias)
414
+ return x
415
+
416
+
417
+ class TFConvBertIntermediate(keras.layers.Layer):
418
+ def __init__(self, config, **kwargs):
419
+ super().__init__(**kwargs)
420
+ if config.num_groups == 1:
421
+ self.dense = keras.layers.Dense(
422
+ config.intermediate_size, kernel_initializer=get_initializer(config.initializer_range), name="dense"
423
+ )
424
+ else:
425
+ self.dense = GroupedLinearLayer(
426
+ config.hidden_size,
427
+ config.intermediate_size,
428
+ num_groups=config.num_groups,
429
+ kernel_initializer=get_initializer(config.initializer_range),
430
+ name="dense",
431
+ )
432
+
433
+ if isinstance(config.hidden_act, str):
434
+ self.intermediate_act_fn = get_tf_activation(config.hidden_act)
435
+ else:
436
+ self.intermediate_act_fn = config.hidden_act
437
+ self.config = config
438
+
439
+ def call(self, hidden_states):
440
+ hidden_states = self.dense(hidden_states)
441
+ hidden_states = self.intermediate_act_fn(hidden_states)
442
+
443
+ return hidden_states
444
+
445
+ def build(self, input_shape=None):
446
+ if self.built:
447
+ return
448
+ self.built = True
449
+ if getattr(self, "dense", None) is not None:
450
+ with tf.name_scope(self.dense.name):
451
+ self.dense.build([None, None, self.config.hidden_size])
452
+
453
+
454
+ class TFConvBertOutput(keras.layers.Layer):
455
+ def __init__(self, config, **kwargs):
456
+ super().__init__(**kwargs)
457
+
458
+ if config.num_groups == 1:
459
+ self.dense = keras.layers.Dense(
460
+ config.hidden_size, kernel_initializer=get_initializer(config.initializer_range), name="dense"
461
+ )
462
+ else:
463
+ self.dense = GroupedLinearLayer(
464
+ config.intermediate_size,
465
+ config.hidden_size,
466
+ num_groups=config.num_groups,
467
+ kernel_initializer=get_initializer(config.initializer_range),
468
+ name="dense",
469
+ )
470
+ self.LayerNorm = keras.layers.LayerNormalization(epsilon=config.layer_norm_eps, name="LayerNorm")
471
+ self.dropout = keras.layers.Dropout(config.hidden_dropout_prob)
472
+ self.config = config
473
+
474
+ def call(self, hidden_states, input_tensor, training=False):
475
+ hidden_states = self.dense(hidden_states)
476
+ hidden_states = self.dropout(hidden_states, training=training)
477
+ hidden_states = self.LayerNorm(hidden_states + input_tensor)
478
+
479
+ return hidden_states
480
+
481
+ def build(self, input_shape=None):
482
+ if self.built:
483
+ return
484
+ self.built = True
485
+ if getattr(self, "LayerNorm", None) is not None:
486
+ with tf.name_scope(self.LayerNorm.name):
487
+ self.LayerNorm.build([None, None, self.config.hidden_size])
488
+ if getattr(self, "dense", None) is not None:
489
+ with tf.name_scope(self.dense.name):
490
+ self.dense.build([None, None, self.config.intermediate_size])
491
+
492
+
493
+ class TFConvBertLayer(keras.layers.Layer):
494
+ def __init__(self, config, **kwargs):
495
+ super().__init__(**kwargs)
496
+
497
+ self.attention = TFConvBertAttention(config, name="attention")
498
+ self.intermediate = TFConvBertIntermediate(config, name="intermediate")
499
+ self.bert_output = TFConvBertOutput(config, name="output")
500
+
501
+ def call(self, hidden_states, attention_mask, head_mask, output_attentions, training=False):
502
+ attention_outputs = self.attention(
503
+ hidden_states, attention_mask, head_mask, output_attentions, training=training
504
+ )
505
+ attention_output = attention_outputs[0]
506
+ intermediate_output = self.intermediate(attention_output)
507
+ layer_output = self.bert_output(intermediate_output, attention_output, training=training)
508
+ outputs = (layer_output,) + attention_outputs[1:] # add attentions if we output them
509
+
510
+ return outputs
511
+
512
+ def build(self, input_shape=None):
513
+ if self.built:
514
+ return
515
+ self.built = True
516
+ if getattr(self, "attention", None) is not None:
517
+ with tf.name_scope(self.attention.name):
518
+ self.attention.build(None)
519
+ if getattr(self, "intermediate", None) is not None:
520
+ with tf.name_scope(self.intermediate.name):
521
+ self.intermediate.build(None)
522
+ if getattr(self, "bert_output", None) is not None:
523
+ with tf.name_scope(self.bert_output.name):
524
+ self.bert_output.build(None)
525
+
526
+
527
+ class TFConvBertEncoder(keras.layers.Layer):
528
+ def __init__(self, config, **kwargs):
529
+ super().__init__(**kwargs)
530
+
531
+ self.layer = [TFConvBertLayer(config, name=f"layer_._{i}") for i in range(config.num_hidden_layers)]
532
+
533
+ def call(
534
+ self,
535
+ hidden_states,
536
+ attention_mask,
537
+ head_mask,
538
+ output_attentions,
539
+ output_hidden_states,
540
+ return_dict,
541
+ training=False,
542
+ ):
543
+ all_hidden_states = () if output_hidden_states else None
544
+ all_attentions = () if output_attentions else None
545
+
546
+ for i, layer_module in enumerate(self.layer):
547
+ if output_hidden_states:
548
+ all_hidden_states = all_hidden_states + (hidden_states,)
549
+
550
+ layer_outputs = layer_module(
551
+ hidden_states, attention_mask, head_mask[i], output_attentions, training=training
552
+ )
553
+ hidden_states = layer_outputs[0]
554
+
555
+ if output_attentions:
556
+ all_attentions = all_attentions + (layer_outputs[1],)
557
+
558
+ # Add last layer
559
+ if output_hidden_states:
560
+ all_hidden_states = all_hidden_states + (hidden_states,)
561
+
562
+ if not return_dict:
563
+ return tuple(v for v in [hidden_states, all_hidden_states, all_attentions] if v is not None)
564
+
565
+ return TFBaseModelOutput(
566
+ last_hidden_state=hidden_states, hidden_states=all_hidden_states, attentions=all_attentions
567
+ )
568
+
569
+ def build(self, input_shape=None):
570
+ if self.built:
571
+ return
572
+ self.built = True
573
+ if getattr(self, "layer", None) is not None:
574
+ for layer in self.layer:
575
+ with tf.name_scope(layer.name):
576
+ layer.build(None)
577
+
578
+
579
+ class TFConvBertPredictionHeadTransform(keras.layers.Layer):
580
+ def __init__(self, config, **kwargs):
581
+ super().__init__(**kwargs)
582
+
583
+ self.dense = keras.layers.Dense(
584
+ config.embedding_size, kernel_initializer=get_initializer(config.initializer_range), name="dense"
585
+ )
586
+
587
+ if isinstance(config.hidden_act, str):
588
+ self.transform_act_fn = get_tf_activation(config.hidden_act)
589
+ else:
590
+ self.transform_act_fn = config.hidden_act
591
+
592
+ self.LayerNorm = keras.layers.LayerNormalization(epsilon=config.layer_norm_eps, name="LayerNorm")
593
+ self.config = config
594
+
595
+ def call(self, hidden_states):
596
+ hidden_states = self.dense(hidden_states)
597
+ hidden_states = self.transform_act_fn(hidden_states)
598
+ hidden_states = self.LayerNorm(hidden_states)
599
+
600
+ return hidden_states
601
+
602
+ def build(self, input_shape=None):
603
+ if self.built:
604
+ return
605
+ self.built = True
606
+ if getattr(self, "dense", None) is not None:
607
+ with tf.name_scope(self.dense.name):
608
+ self.dense.build([None, None, self.config.hidden_size])
609
+ if getattr(self, "LayerNorm", None) is not None:
610
+ with tf.name_scope(self.LayerNorm.name):
611
+ self.LayerNorm.build([None, None, self.config.hidden_size])
612
+
613
+
614
+ @keras_serializable
615
+ class TFConvBertMainLayer(keras.layers.Layer):
616
+ config_class = ConvBertConfig
617
+
618
+ def __init__(self, config, **kwargs):
619
+ super().__init__(**kwargs)
620
+
621
+ self.embeddings = TFConvBertEmbeddings(config, name="embeddings")
622
+
623
+ if config.embedding_size != config.hidden_size:
624
+ self.embeddings_project = keras.layers.Dense(config.hidden_size, name="embeddings_project")
625
+
626
+ self.encoder = TFConvBertEncoder(config, name="encoder")
627
+ self.config = config
628
+
629
+ def get_input_embeddings(self):
630
+ return self.embeddings
631
+
632
+ def set_input_embeddings(self, value):
633
+ self.embeddings.weight = value
634
+ self.embeddings.vocab_size = value.shape[0]
635
+
636
+ def _prune_heads(self, heads_to_prune):
637
+ """
638
+ Prunes heads of the model. heads_to_prune: dict of {layer_num: list of heads to prune in this layer} See base
639
+ class PreTrainedModel
640
+ """
641
+ raise NotImplementedError
642
+
643
+ def get_extended_attention_mask(self, attention_mask, input_shape, dtype):
644
+ if attention_mask is None:
645
+ attention_mask = tf.fill(input_shape, 1)
646
+
647
+ # We create a 3D attention mask from a 2D tensor mask.
648
+ # Sizes are [batch_size, 1, 1, to_seq_length]
649
+ # So we can broadcast to [batch_size, num_heads, from_seq_length, to_seq_length]
650
+ # this attention mask is more simple than the triangular masking of causal attention
651
+ # used in OpenAI GPT, we just need to prepare the broadcast dimension here.
652
+ extended_attention_mask = tf.reshape(attention_mask, (input_shape[0], 1, 1, input_shape[1]))
653
+
654
+ # Since attention_mask is 1.0 for positions we want to attend and 0.0 for
655
+ # masked positions, this operation will create a tensor which is 0.0 for
656
+ # positions we want to attend and -10000.0 for masked positions.
657
+ # Since we are adding it to the raw scores before the softmax, this is
658
+ # effectively the same as removing these entirely.
659
+ extended_attention_mask = tf.cast(extended_attention_mask, dtype)
660
+ extended_attention_mask = (1.0 - extended_attention_mask) * -10000.0
661
+
662
+ return extended_attention_mask
663
+
664
+ def get_head_mask(self, head_mask):
665
+ if head_mask is not None:
666
+ raise NotImplementedError
667
+ else:
668
+ head_mask = [None] * self.config.num_hidden_layers
669
+
670
+ return head_mask
671
+
672
+ @unpack_inputs
673
+ def call(
674
+ self,
675
+ input_ids=None,
676
+ attention_mask=None,
677
+ token_type_ids=None,
678
+ position_ids=None,
679
+ head_mask=None,
680
+ inputs_embeds=None,
681
+ output_attentions=None,
682
+ output_hidden_states=None,
683
+ return_dict=None,
684
+ training=False,
685
+ ):
686
+ if input_ids is not None and inputs_embeds is not None:
687
+ raise ValueError("You cannot specify both input_ids and inputs_embeds at the same time")
688
+ elif input_ids is not None:
689
+ input_shape = shape_list(input_ids)
690
+ elif inputs_embeds is not None:
691
+ input_shape = shape_list(inputs_embeds)[:-1]
692
+ else:
693
+ raise ValueError("You have to specify either input_ids or inputs_embeds")
694
+
695
+ if attention_mask is None:
696
+ attention_mask = tf.fill(input_shape, 1)
697
+
698
+ if token_type_ids is None:
699
+ token_type_ids = tf.fill(input_shape, 0)
700
+
701
+ hidden_states = self.embeddings(input_ids, position_ids, token_type_ids, inputs_embeds, training=training)
702
+ extended_attention_mask = self.get_extended_attention_mask(attention_mask, input_shape, hidden_states.dtype)
703
+ head_mask = self.get_head_mask(head_mask)
704
+
705
+ if hasattr(self, "embeddings_project"):
706
+ hidden_states = self.embeddings_project(hidden_states, training=training)
707
+
708
+ hidden_states = self.encoder(
709
+ hidden_states,
710
+ extended_attention_mask,
711
+ head_mask,
712
+ output_attentions,
713
+ output_hidden_states,
714
+ return_dict,
715
+ training=training,
716
+ )
717
+
718
+ return hidden_states
719
+
720
+ def build(self, input_shape=None):
721
+ if self.built:
722
+ return
723
+ self.built = True
724
+ if getattr(self, "embeddings", None) is not None:
725
+ with tf.name_scope(self.embeddings.name):
726
+ self.embeddings.build(None)
727
+ if getattr(self, "encoder", None) is not None:
728
+ with tf.name_scope(self.encoder.name):
729
+ self.encoder.build(None)
730
+ if getattr(self, "embeddings_project", None) is not None:
731
+ with tf.name_scope(self.embeddings_project.name):
732
+ self.embeddings_project.build([None, None, self.config.embedding_size])
733
+
734
+
735
+ class TFConvBertPreTrainedModel(TFPreTrainedModel):
736
+ """
737
+ An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained
738
+ models.
739
+ """
740
+
741
+ config_class = ConvBertConfig
742
+ base_model_prefix = "convbert"
743
+
744
+
745
+ CONVBERT_START_DOCSTRING = r"""
746
+
747
+ This model inherits from [`TFPreTrainedModel`]. Check the superclass documentation for the generic methods the
748
+ library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads
749
+ etc.)
750
+
751
+ This model is also a [keras.Model](https://www.tensorflow.org/api_docs/python/tf/keras/Model) subclass. Use it
752
+ as a regular TF 2.0 Keras Model and refer to the TF 2.0 documentation for all matter related to general usage and
753
+ behavior.
754
+
755
+ <Tip>
756
+
757
+ TensorFlow models and layers in `transformers` accept two formats as input:
758
+
759
+ - having all inputs as keyword arguments (like PyTorch models), or
760
+ - having all inputs as a list, tuple or dict in the first positional argument.
761
+
762
+ The reason the second format is supported is that Keras methods prefer this format when passing inputs to models
763
+ and layers. Because of this support, when using methods like `model.fit()` things should "just work" for you - just
764
+ pass your inputs and labels in any format that `model.fit()` supports! If, however, you want to use the second
765
+ format outside of Keras methods like `fit()` and `predict()`, such as when creating your own layers or models with
766
+ the Keras `Functional` API, there are three possibilities you can use to gather all the input Tensors in the first
767
+ positional argument:
768
+
769
+ - a single Tensor with `input_ids` only and nothing else: `model(input_ids)`
770
+ - a list of varying length with one or several input Tensors IN THE ORDER given in the docstring:
771
+ `model([input_ids, attention_mask])` or `model([input_ids, attention_mask, token_type_ids])`
772
+ - a dictionary with one or several input Tensors associated to the input names given in the docstring:
773
+ `model({"input_ids": input_ids, "token_type_ids": token_type_ids})`
774
+
775
+ Note that when creating models and layers with
776
+ [subclassing](https://keras.io/guides/making_new_layers_and_models_via_subclassing/) then you don't need to worry
777
+ about any of this, as you can just pass inputs like you would to any other Python function!
778
+
779
+ </Tip>
780
+
781
+ Args:
782
+ config ([`ConvBertConfig`]): Model configuration class with all the parameters of the model.
783
+ Initializing with a config file does not load the weights associated with the model, only the
784
+ configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights.
785
+ """
786
+
787
+ CONVBERT_INPUTS_DOCSTRING = r"""
788
+ Args:
789
+ input_ids (`Numpy array` or `tf.Tensor` of shape `({0})`):
790
+ Indices of input sequence tokens in the vocabulary.
791
+
792
+ Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.__call__`] and
793
+ [`PreTrainedTokenizer.encode`] for details.
794
+
795
+ [What are input IDs?](../glossary#input-ids)
796
+ attention_mask (`Numpy array` or `tf.Tensor` of shape `({0})`, *optional*):
797
+ Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`:
798
+
799
+ - 1 for tokens that are **not masked**,
800
+ - 0 for tokens that are **masked**.
801
+
802
+ [What are attention masks?](../glossary#attention-mask)
803
+ token_type_ids (`Numpy array` or `tf.Tensor` of shape `({0})`, *optional*):
804
+ Segment token indices to indicate first and second portions of the inputs. Indices are selected in `[0,
805
+ 1]`:
806
+
807
+ - 0 corresponds to a *sentence A* token,
808
+ - 1 corresponds to a *sentence B* token.
809
+
810
+ [What are token type IDs?](../glossary#token-type-ids)
811
+ position_ids (`Numpy array` or `tf.Tensor` of shape `({0})`, *optional*):
812
+ Indices of positions of each input sequence tokens in the position embeddings. Selected in the range `[0,
813
+ config.max_position_embeddings - 1]`.
814
+
815
+ [What are position IDs?](../glossary#position-ids)
816
+ head_mask (`Numpy array` or `tf.Tensor` of shape `(num_heads,)` or `(num_layers, num_heads)`, *optional*):
817
+ Mask to nullify selected heads of the self-attention modules. Mask values selected in `[0, 1]`:
818
+
819
+ - 1 indicates the head is **not masked**,
820
+ - 0 indicates the head is **masked**.
821
+
822
+ inputs_embeds (`tf.Tensor` of shape `({0}, hidden_size)`, *optional*):
823
+ Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. This
824
+ is useful if you want more control over how to convert `input_ids` indices into associated vectors than the
825
+ model's internal embedding lookup matrix.
826
+ output_attentions (`bool`, *optional*):
827
+ Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned
828
+ tensors for more detail. This argument can be used only in eager mode, in graph mode the value in the
829
+ config will be used instead.
830
+ output_hidden_states (`bool`, *optional*):
831
+ Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
832
+ more detail. This argument can be used only in eager mode, in graph mode the value in the config will be
833
+ used instead.
834
+ return_dict (`bool`, *optional*):
835
+ Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. This argument can be used in
836
+ eager mode, in graph mode the value will always be set to True.
837
+ training (`bool`, *optional*, defaults to `False`):
838
+ Whether or not to use the model in training mode (some modules like dropout modules have different
839
+ behaviors between training and evaluation).
840
+ """
841
+
842
+
843
+ @add_start_docstrings(
844
+ "The bare ConvBERT Model transformer outputting raw hidden-states without any specific head on top.",
845
+ CONVBERT_START_DOCSTRING,
846
+ )
847
+ class TFConvBertModel(TFConvBertPreTrainedModel):
848
+ def __init__(self, config, *inputs, **kwargs):
849
+ super().__init__(config, *inputs, **kwargs)
850
+
851
+ self.convbert = TFConvBertMainLayer(config, name="convbert")
852
+
853
+ @unpack_inputs
854
+ @add_start_docstrings_to_model_forward(CONVBERT_INPUTS_DOCSTRING.format("batch_size, sequence_length"))
855
+ @add_code_sample_docstrings(
856
+ checkpoint=_CHECKPOINT_FOR_DOC,
857
+ output_type=TFBaseModelOutput,
858
+ config_class=_CONFIG_FOR_DOC,
859
+ )
860
+ def call(
861
+ self,
862
+ input_ids: TFModelInputType | None = None,
863
+ attention_mask: Optional[Union[np.array, tf.Tensor]] = None,
864
+ token_type_ids: Optional[Union[np.array, tf.Tensor]] = None,
865
+ position_ids: Optional[Union[np.array, tf.Tensor]] = None,
866
+ head_mask: Optional[Union[np.array, tf.Tensor]] = None,
867
+ inputs_embeds: tf.Tensor | None = None,
868
+ output_attentions: Optional[bool] = None,
869
+ output_hidden_states: Optional[bool] = None,
870
+ return_dict: Optional[bool] = None,
871
+ training: bool = False,
872
+ ) -> Union[TFBaseModelOutput, Tuple[tf.Tensor]]:
873
+ outputs = self.convbert(
874
+ input_ids=input_ids,
875
+ attention_mask=attention_mask,
876
+ token_type_ids=token_type_ids,
877
+ position_ids=position_ids,
878
+ head_mask=head_mask,
879
+ inputs_embeds=inputs_embeds,
880
+ output_attentions=output_attentions,
881
+ output_hidden_states=output_hidden_states,
882
+ return_dict=return_dict,
883
+ training=training,
884
+ )
885
+
886
+ return outputs
887
+
888
+ def build(self, input_shape=None):
889
+ if self.built:
890
+ return
891
+ self.built = True
892
+ if getattr(self, "convbert", None) is not None:
893
+ with tf.name_scope(self.convbert.name):
894
+ self.convbert.build(None)
895
+
896
+
897
+ class TFConvBertMaskedLMHead(keras.layers.Layer):
898
+ def __init__(self, config, input_embeddings, **kwargs):
899
+ super().__init__(**kwargs)
900
+
901
+ self.config = config
902
+ self.embedding_size = config.embedding_size
903
+ self.input_embeddings = input_embeddings
904
+
905
+ def build(self, input_shape):
906
+ self.bias = self.add_weight(shape=(self.config.vocab_size,), initializer="zeros", trainable=True, name="bias")
907
+
908
+ super().build(input_shape)
909
+
910
+ def get_output_embeddings(self):
911
+ return self.input_embeddings
912
+
913
+ def set_output_embeddings(self, value):
914
+ self.input_embeddings.weight = value
915
+ self.input_embeddings.vocab_size = shape_list(value)[0]
916
+
917
+ def get_bias(self):
918
+ return {"bias": self.bias}
919
+
920
+ def set_bias(self, value):
921
+ self.bias = value["bias"]
922
+ self.config.vocab_size = shape_list(value["bias"])[0]
923
+
924
+ def call(self, hidden_states):
925
+ seq_length = shape_list(tensor=hidden_states)[1]
926
+ hidden_states = tf.reshape(tensor=hidden_states, shape=[-1, self.embedding_size])
927
+ hidden_states = tf.matmul(a=hidden_states, b=self.input_embeddings.weight, transpose_b=True)
928
+ hidden_states = tf.reshape(tensor=hidden_states, shape=[-1, seq_length, self.config.vocab_size])
929
+ hidden_states = tf.nn.bias_add(value=hidden_states, bias=self.bias)
930
+
931
+ return hidden_states
932
+
933
+
934
+ class TFConvBertGeneratorPredictions(keras.layers.Layer):
935
+ def __init__(self, config, **kwargs):
936
+ super().__init__(**kwargs)
937
+
938
+ self.LayerNorm = keras.layers.LayerNormalization(epsilon=config.layer_norm_eps, name="LayerNorm")
939
+ self.dense = keras.layers.Dense(config.embedding_size, name="dense")
940
+ self.config = config
941
+
942
+ def call(self, generator_hidden_states, training=False):
943
+ hidden_states = self.dense(generator_hidden_states)
944
+ hidden_states = get_tf_activation("gelu")(hidden_states)
945
+ hidden_states = self.LayerNorm(hidden_states)
946
+
947
+ return hidden_states
948
+
949
+ def build(self, input_shape=None):
950
+ if self.built:
951
+ return
952
+ self.built = True
953
+ if getattr(self, "LayerNorm", None) is not None:
954
+ with tf.name_scope(self.LayerNorm.name):
955
+ self.LayerNorm.build([None, None, self.config.embedding_size])
956
+ if getattr(self, "dense", None) is not None:
957
+ with tf.name_scope(self.dense.name):
958
+ self.dense.build([None, None, self.config.hidden_size])
959
+
960
+
961
+ @add_start_docstrings("""ConvBERT Model with a `language modeling` head on top.""", CONVBERT_START_DOCSTRING)
962
+ class TFConvBertForMaskedLM(TFConvBertPreTrainedModel, TFMaskedLanguageModelingLoss):
963
+ def __init__(self, config, *inputs, **kwargs):
964
+ super().__init__(config, **kwargs)
965
+
966
+ self.config = config
967
+ self.convbert = TFConvBertMainLayer(config, name="convbert")
968
+ self.generator_predictions = TFConvBertGeneratorPredictions(config, name="generator_predictions")
969
+
970
+ if isinstance(config.hidden_act, str):
971
+ self.activation = get_tf_activation(config.hidden_act)
972
+ else:
973
+ self.activation = config.hidden_act
974
+
975
+ self.generator_lm_head = TFConvBertMaskedLMHead(config, self.convbert.embeddings, name="generator_lm_head")
976
+
977
+ def get_lm_head(self):
978
+ return self.generator_lm_head
979
+
980
+ def get_prefix_bias_name(self):
981
+ return self.name + "/" + self.generator_lm_head.name
982
+
983
+ @unpack_inputs
984
+ @add_start_docstrings_to_model_forward(CONVBERT_INPUTS_DOCSTRING.format("batch_size, sequence_length"))
985
+ @add_code_sample_docstrings(
986
+ checkpoint=_CHECKPOINT_FOR_DOC,
987
+ output_type=TFMaskedLMOutput,
988
+ config_class=_CONFIG_FOR_DOC,
989
+ )
990
+ def call(
991
+ self,
992
+ input_ids: TFModelInputType | None = None,
993
+ attention_mask: np.ndarray | tf.Tensor | None = None,
994
+ token_type_ids: np.ndarray | tf.Tensor | None = None,
995
+ position_ids: np.ndarray | tf.Tensor | None = None,
996
+ head_mask: np.ndarray | tf.Tensor | None = None,
997
+ inputs_embeds: tf.Tensor | None = None,
998
+ output_attentions: Optional[bool] = None,
999
+ output_hidden_states: Optional[bool] = None,
1000
+ return_dict: Optional[bool] = None,
1001
+ labels: tf.Tensor | None = None,
1002
+ training: Optional[bool] = False,
1003
+ ) -> Union[Tuple, TFMaskedLMOutput]:
1004
+ r"""
1005
+ labels (`tf.Tensor` of shape `(batch_size, sequence_length)`, *optional*):
1006
+ Labels for computing the masked language modeling loss. Indices should be in `[-100, 0, ...,
1007
+ config.vocab_size]` (see `input_ids` docstring) Tokens with indices set to `-100` are ignored (masked), the
1008
+ loss is only computed for the tokens with labels in `[0, ..., config.vocab_size]`
1009
+ """
1010
+ generator_hidden_states = self.convbert(
1011
+ input_ids=input_ids,
1012
+ attention_mask=attention_mask,
1013
+ token_type_ids=token_type_ids,
1014
+ position_ids=position_ids,
1015
+ head_mask=head_mask,
1016
+ inputs_embeds=inputs_embeds,
1017
+ output_attentions=output_attentions,
1018
+ output_hidden_states=output_hidden_states,
1019
+ return_dict=return_dict,
1020
+ training=training,
1021
+ )
1022
+ generator_sequence_output = generator_hidden_states[0]
1023
+ prediction_scores = self.generator_predictions(generator_sequence_output, training=training)
1024
+ prediction_scores = self.generator_lm_head(prediction_scores, training=training)
1025
+ loss = None if labels is None else self.hf_compute_loss(labels, prediction_scores)
1026
+
1027
+ if not return_dict:
1028
+ output = (prediction_scores,) + generator_hidden_states[1:]
1029
+
1030
+ return ((loss,) + output) if loss is not None else output
1031
+
1032
+ return TFMaskedLMOutput(
1033
+ loss=loss,
1034
+ logits=prediction_scores,
1035
+ hidden_states=generator_hidden_states.hidden_states,
1036
+ attentions=generator_hidden_states.attentions,
1037
+ )
1038
+
1039
+ def build(self, input_shape=None):
1040
+ if self.built:
1041
+ return
1042
+ self.built = True
1043
+ if getattr(self, "convbert", None) is not None:
1044
+ with tf.name_scope(self.convbert.name):
1045
+ self.convbert.build(None)
1046
+ if getattr(self, "generator_predictions", None) is not None:
1047
+ with tf.name_scope(self.generator_predictions.name):
1048
+ self.generator_predictions.build(None)
1049
+ if getattr(self, "generator_lm_head", None) is not None:
1050
+ with tf.name_scope(self.generator_lm_head.name):
1051
+ self.generator_lm_head.build(None)
1052
+
1053
+
1054
+ class TFConvBertClassificationHead(keras.layers.Layer):
1055
+ """Head for sentence-level classification tasks."""
1056
+
1057
+ def __init__(self, config, **kwargs):
1058
+ super().__init__(**kwargs)
1059
+
1060
+ self.dense = keras.layers.Dense(
1061
+ config.hidden_size, kernel_initializer=get_initializer(config.initializer_range), name="dense"
1062
+ )
1063
+ classifier_dropout = (
1064
+ config.classifier_dropout if config.classifier_dropout is not None else config.hidden_dropout_prob
1065
+ )
1066
+ self.dropout = keras.layers.Dropout(classifier_dropout)
1067
+ self.out_proj = keras.layers.Dense(
1068
+ config.num_labels, kernel_initializer=get_initializer(config.initializer_range), name="out_proj"
1069
+ )
1070
+
1071
+ self.config = config
1072
+
1073
+ def call(self, hidden_states, **kwargs):
1074
+ x = hidden_states[:, 0, :] # take <s> token (equiv. to [CLS])
1075
+ x = self.dropout(x)
1076
+ x = self.dense(x)
1077
+ x = get_tf_activation(self.config.hidden_act)(x)
1078
+ x = self.dropout(x)
1079
+ x = self.out_proj(x)
1080
+
1081
+ return x
1082
+
1083
+ def build(self, input_shape=None):
1084
+ if self.built:
1085
+ return
1086
+ self.built = True
1087
+ if getattr(self, "dense", None) is not None:
1088
+ with tf.name_scope(self.dense.name):
1089
+ self.dense.build([None, None, self.config.hidden_size])
1090
+ if getattr(self, "out_proj", None) is not None:
1091
+ with tf.name_scope(self.out_proj.name):
1092
+ self.out_proj.build([None, None, self.config.hidden_size])
1093
+
1094
+
1095
+ @add_start_docstrings(
1096
+ """
1097
+ ConvBERT Model transformer with a sequence classification/regression head on top e.g., for GLUE tasks.
1098
+ """,
1099
+ CONVBERT_START_DOCSTRING,
1100
+ )
1101
+ class TFConvBertForSequenceClassification(TFConvBertPreTrainedModel, TFSequenceClassificationLoss):
1102
+ def __init__(self, config, *inputs, **kwargs):
1103
+ super().__init__(config, *inputs, **kwargs)
1104
+ self.num_labels = config.num_labels
1105
+ self.convbert = TFConvBertMainLayer(config, name="convbert")
1106
+ self.classifier = TFConvBertClassificationHead(config, name="classifier")
1107
+
1108
+ @unpack_inputs
1109
+ @add_start_docstrings_to_model_forward(CONVBERT_INPUTS_DOCSTRING.format("batch_size, sequence_length"))
1110
+ @add_code_sample_docstrings(
1111
+ checkpoint=_CHECKPOINT_FOR_DOC,
1112
+ output_type=TFSequenceClassifierOutput,
1113
+ config_class=_CONFIG_FOR_DOC,
1114
+ )
1115
+ def call(
1116
+ self,
1117
+ input_ids: TFModelInputType | None = None,
1118
+ attention_mask: np.ndarray | tf.Tensor | None = None,
1119
+ token_type_ids: np.ndarray | tf.Tensor | None = None,
1120
+ position_ids: np.ndarray | tf.Tensor | None = None,
1121
+ head_mask: np.ndarray | tf.Tensor | None = None,
1122
+ inputs_embeds: tf.Tensor | None = None,
1123
+ output_attentions: Optional[bool] = None,
1124
+ output_hidden_states: Optional[bool] = None,
1125
+ return_dict: Optional[bool] = None,
1126
+ labels: tf.Tensor | None = None,
1127
+ training: Optional[bool] = False,
1128
+ ) -> Union[Tuple, TFSequenceClassifierOutput]:
1129
+ r"""
1130
+ labels (`tf.Tensor` of shape `(batch_size,)`, *optional*):
1131
+ Labels for computing the sequence classification/regression loss. Indices should be in `[0, ...,
1132
+ config.num_labels - 1]`. If `config.num_labels == 1` a regression loss is computed (Mean-Square loss), If
1133
+ `config.num_labels > 1` a classification loss is computed (Cross-Entropy).
1134
+ """
1135
+ outputs = self.convbert(
1136
+ input_ids,
1137
+ attention_mask=attention_mask,
1138
+ token_type_ids=token_type_ids,
1139
+ position_ids=position_ids,
1140
+ head_mask=head_mask,
1141
+ inputs_embeds=inputs_embeds,
1142
+ output_attentions=output_attentions,
1143
+ output_hidden_states=output_hidden_states,
1144
+ return_dict=return_dict,
1145
+ training=training,
1146
+ )
1147
+ logits = self.classifier(outputs[0], training=training)
1148
+ loss = None if labels is None else self.hf_compute_loss(labels, logits)
1149
+
1150
+ if not return_dict:
1151
+ output = (logits,) + outputs[1:]
1152
+
1153
+ return ((loss,) + output) if loss is not None else output
1154
+
1155
+ return TFSequenceClassifierOutput(
1156
+ loss=loss,
1157
+ logits=logits,
1158
+ hidden_states=outputs.hidden_states,
1159
+ attentions=outputs.attentions,
1160
+ )
1161
+
1162
+ def build(self, input_shape=None):
1163
+ if self.built:
1164
+ return
1165
+ self.built = True
1166
+ if getattr(self, "convbert", None) is not None:
1167
+ with tf.name_scope(self.convbert.name):
1168
+ self.convbert.build(None)
1169
+ if getattr(self, "classifier", None) is not None:
1170
+ with tf.name_scope(self.classifier.name):
1171
+ self.classifier.build(None)
1172
+
1173
+
1174
+ @add_start_docstrings(
1175
+ """
1176
+ ConvBERT Model with a multiple choice classification head on top (a linear layer on top of the pooled output and a
1177
+ softmax) e.g. for RocStories/SWAG tasks.
1178
+ """,
1179
+ CONVBERT_START_DOCSTRING,
1180
+ )
1181
+ class TFConvBertForMultipleChoice(TFConvBertPreTrainedModel, TFMultipleChoiceLoss):
1182
+ def __init__(self, config, *inputs, **kwargs):
1183
+ super().__init__(config, *inputs, **kwargs)
1184
+
1185
+ self.convbert = TFConvBertMainLayer(config, name="convbert")
1186
+ self.sequence_summary = TFSequenceSummary(
1187
+ config, initializer_range=config.initializer_range, name="sequence_summary"
1188
+ )
1189
+ self.classifier = keras.layers.Dense(
1190
+ 1, kernel_initializer=get_initializer(config.initializer_range), name="classifier"
1191
+ )
1192
+ self.config = config
1193
+
1194
+ @unpack_inputs
1195
+ @add_start_docstrings_to_model_forward(
1196
+ CONVBERT_INPUTS_DOCSTRING.format("batch_size, num_choices, sequence_length")
1197
+ )
1198
+ @add_code_sample_docstrings(
1199
+ checkpoint=_CHECKPOINT_FOR_DOC,
1200
+ output_type=TFMultipleChoiceModelOutput,
1201
+ config_class=_CONFIG_FOR_DOC,
1202
+ )
1203
+ def call(
1204
+ self,
1205
+ input_ids: TFModelInputType | None = None,
1206
+ attention_mask: np.ndarray | tf.Tensor | None = None,
1207
+ token_type_ids: np.ndarray | tf.Tensor | None = None,
1208
+ position_ids: np.ndarray | tf.Tensor | None = None,
1209
+ head_mask: np.ndarray | tf.Tensor | None = None,
1210
+ inputs_embeds: tf.Tensor | None = None,
1211
+ output_attentions: Optional[bool] = None,
1212
+ output_hidden_states: Optional[bool] = None,
1213
+ return_dict: Optional[bool] = None,
1214
+ labels: tf.Tensor | None = None,
1215
+ training: Optional[bool] = False,
1216
+ ) -> Union[Tuple, TFMultipleChoiceModelOutput]:
1217
+ r"""
1218
+ labels (`tf.Tensor` of shape `(batch_size,)`, *optional*):
1219
+ Labels for computing the multiple choice classification loss. Indices should be in `[0, ..., num_choices]`
1220
+ where `num_choices` is the size of the second dimension of the input tensors. (See `input_ids` above)
1221
+ """
1222
+ if input_ids is not None:
1223
+ num_choices = shape_list(input_ids)[1]
1224
+ seq_length = shape_list(input_ids)[2]
1225
+ else:
1226
+ num_choices = shape_list(inputs_embeds)[1]
1227
+ seq_length = shape_list(inputs_embeds)[2]
1228
+
1229
+ flat_input_ids = tf.reshape(input_ids, (-1, seq_length)) if input_ids is not None else None
1230
+ flat_attention_mask = tf.reshape(attention_mask, (-1, seq_length)) if attention_mask is not None else None
1231
+ flat_token_type_ids = tf.reshape(token_type_ids, (-1, seq_length)) if token_type_ids is not None else None
1232
+ flat_position_ids = tf.reshape(position_ids, (-1, seq_length)) if position_ids is not None else None
1233
+ flat_inputs_embeds = (
1234
+ tf.reshape(inputs_embeds, (-1, seq_length, shape_list(inputs_embeds)[3]))
1235
+ if inputs_embeds is not None
1236
+ else None
1237
+ )
1238
+ outputs = self.convbert(
1239
+ flat_input_ids,
1240
+ flat_attention_mask,
1241
+ flat_token_type_ids,
1242
+ flat_position_ids,
1243
+ head_mask,
1244
+ flat_inputs_embeds,
1245
+ output_attentions,
1246
+ output_hidden_states,
1247
+ return_dict=return_dict,
1248
+ training=training,
1249
+ )
1250
+ logits = self.sequence_summary(outputs[0], training=training)
1251
+ logits = self.classifier(logits)
1252
+ reshaped_logits = tf.reshape(logits, (-1, num_choices))
1253
+ loss = None if labels is None else self.hf_compute_loss(labels, reshaped_logits)
1254
+
1255
+ if not return_dict:
1256
+ output = (reshaped_logits,) + outputs[1:]
1257
+
1258
+ return ((loss,) + output) if loss is not None else output
1259
+
1260
+ return TFMultipleChoiceModelOutput(
1261
+ loss=loss,
1262
+ logits=reshaped_logits,
1263
+ hidden_states=outputs.hidden_states,
1264
+ attentions=outputs.attentions,
1265
+ )
1266
+
1267
+ def build(self, input_shape=None):
1268
+ if self.built:
1269
+ return
1270
+ self.built = True
1271
+ if getattr(self, "convbert", None) is not None:
1272
+ with tf.name_scope(self.convbert.name):
1273
+ self.convbert.build(None)
1274
+ if getattr(self, "sequence_summary", None) is not None:
1275
+ with tf.name_scope(self.sequence_summary.name):
1276
+ self.sequence_summary.build(None)
1277
+ if getattr(self, "classifier", None) is not None:
1278
+ with tf.name_scope(self.classifier.name):
1279
+ self.classifier.build([None, None, self.config.hidden_size])
1280
+
1281
+
1282
+ @add_start_docstrings(
1283
+ """
1284
+ ConvBERT Model with a token classification head on top (a linear layer on top of the hidden-states output) e.g. for
1285
+ Named-Entity-Recognition (NER) tasks.
1286
+ """,
1287
+ CONVBERT_START_DOCSTRING,
1288
+ )
1289
+ class TFConvBertForTokenClassification(TFConvBertPreTrainedModel, TFTokenClassificationLoss):
1290
+ def __init__(self, config, *inputs, **kwargs):
1291
+ super().__init__(config, *inputs, **kwargs)
1292
+
1293
+ self.num_labels = config.num_labels
1294
+ self.convbert = TFConvBertMainLayer(config, name="convbert")
1295
+ classifier_dropout = (
1296
+ config.classifier_dropout if config.classifier_dropout is not None else config.hidden_dropout_prob
1297
+ )
1298
+ self.dropout = keras.layers.Dropout(classifier_dropout)
1299
+ self.classifier = keras.layers.Dense(
1300
+ config.num_labels, kernel_initializer=get_initializer(config.initializer_range), name="classifier"
1301
+ )
1302
+ self.config = config
1303
+
1304
+ @unpack_inputs
1305
+ @add_start_docstrings_to_model_forward(CONVBERT_INPUTS_DOCSTRING.format("batch_size, sequence_length"))
1306
+ @add_code_sample_docstrings(
1307
+ checkpoint=_CHECKPOINT_FOR_DOC,
1308
+ output_type=TFTokenClassifierOutput,
1309
+ config_class=_CONFIG_FOR_DOC,
1310
+ )
1311
+ def call(
1312
+ self,
1313
+ input_ids: TFModelInputType | None = None,
1314
+ attention_mask: np.ndarray | tf.Tensor | None = None,
1315
+ token_type_ids: np.ndarray | tf.Tensor | None = None,
1316
+ position_ids: np.ndarray | tf.Tensor | None = None,
1317
+ head_mask: np.ndarray | tf.Tensor | None = None,
1318
+ inputs_embeds: tf.Tensor | None = None,
1319
+ output_attentions: Optional[bool] = None,
1320
+ output_hidden_states: Optional[bool] = None,
1321
+ return_dict: Optional[bool] = None,
1322
+ labels: tf.Tensor | None = None,
1323
+ training: Optional[bool] = False,
1324
+ ) -> Union[Tuple, TFTokenClassifierOutput]:
1325
+ r"""
1326
+ labels (`tf.Tensor` of shape `(batch_size, sequence_length)`, *optional*):
1327
+ Labels for computing the token classification loss. Indices should be in `[0, ..., config.num_labels - 1]`.
1328
+ """
1329
+ outputs = self.convbert(
1330
+ input_ids,
1331
+ attention_mask=attention_mask,
1332
+ token_type_ids=token_type_ids,
1333
+ position_ids=position_ids,
1334
+ head_mask=head_mask,
1335
+ inputs_embeds=inputs_embeds,
1336
+ output_attentions=output_attentions,
1337
+ output_hidden_states=output_hidden_states,
1338
+ return_dict=return_dict,
1339
+ training=training,
1340
+ )
1341
+ sequence_output = outputs[0]
1342
+ sequence_output = self.dropout(sequence_output, training=training)
1343
+ logits = self.classifier(sequence_output)
1344
+ loss = None if labels is None else self.hf_compute_loss(labels, logits)
1345
+
1346
+ if not return_dict:
1347
+ output = (logits,) + outputs[1:]
1348
+ return ((loss,) + output) if loss is not None else output
1349
+
1350
+ return TFTokenClassifierOutput(
1351
+ loss=loss,
1352
+ logits=logits,
1353
+ hidden_states=outputs.hidden_states,
1354
+ attentions=outputs.attentions,
1355
+ )
1356
+
1357
+ def build(self, input_shape=None):
1358
+ if self.built:
1359
+ return
1360
+ self.built = True
1361
+ if getattr(self, "convbert", None) is not None:
1362
+ with tf.name_scope(self.convbert.name):
1363
+ self.convbert.build(None)
1364
+ if getattr(self, "classifier", None) is not None:
1365
+ with tf.name_scope(self.classifier.name):
1366
+ self.classifier.build([None, None, self.config.hidden_size])
1367
+
1368
+
1369
+ @add_start_docstrings(
1370
+ """
1371
+ ConvBERT Model with a span classification head on top for extractive question-answering tasks like SQuAD (a linear
1372
+ layer on top of the hidden-states output to compute `span start logits` and `span end logits`).
1373
+ """,
1374
+ CONVBERT_START_DOCSTRING,
1375
+ )
1376
+ class TFConvBertForQuestionAnswering(TFConvBertPreTrainedModel, TFQuestionAnsweringLoss):
1377
+ def __init__(self, config, *inputs, **kwargs):
1378
+ super().__init__(config, *inputs, **kwargs)
1379
+
1380
+ self.num_labels = config.num_labels
1381
+ self.convbert = TFConvBertMainLayer(config, name="convbert")
1382
+ self.qa_outputs = keras.layers.Dense(
1383
+ config.num_labels, kernel_initializer=get_initializer(config.initializer_range), name="qa_outputs"
1384
+ )
1385
+ self.config = config
1386
+
1387
+ @unpack_inputs
1388
+ @add_start_docstrings_to_model_forward(CONVBERT_INPUTS_DOCSTRING.format("batch_size, sequence_length"))
1389
+ @add_code_sample_docstrings(
1390
+ checkpoint=_CHECKPOINT_FOR_DOC,
1391
+ output_type=TFQuestionAnsweringModelOutput,
1392
+ config_class=_CONFIG_FOR_DOC,
1393
+ )
1394
+ def call(
1395
+ self,
1396
+ input_ids: TFModelInputType | None = None,
1397
+ attention_mask: np.ndarray | tf.Tensor | None = None,
1398
+ token_type_ids: np.ndarray | tf.Tensor | None = None,
1399
+ position_ids: np.ndarray | tf.Tensor | None = None,
1400
+ head_mask: np.ndarray | tf.Tensor | None = None,
1401
+ inputs_embeds: tf.Tensor | None = None,
1402
+ output_attentions: Optional[bool] = None,
1403
+ output_hidden_states: Optional[bool] = None,
1404
+ return_dict: Optional[bool] = None,
1405
+ start_positions: tf.Tensor | None = None,
1406
+ end_positions: tf.Tensor | None = None,
1407
+ training: Optional[bool] = False,
1408
+ ) -> Union[Tuple, TFQuestionAnsweringModelOutput]:
1409
+ r"""
1410
+ start_positions (`tf.Tensor` of shape `(batch_size,)`, *optional*):
1411
+ Labels for position (index) of the start of the labelled span for computing the token classification loss.
1412
+ Positions are clamped to the length of the sequence (`sequence_length`). Position outside of the sequence
1413
+ are not taken into account for computing the loss.
1414
+ end_positions (`tf.Tensor` of shape `(batch_size,)`, *optional*):
1415
+ Labels for position (index) of the end of the labelled span for computing the token classification loss.
1416
+ Positions are clamped to the length of the sequence (`sequence_length`). Position outside of the sequence
1417
+ are not taken into account for computing the loss.
1418
+ """
1419
+ outputs = self.convbert(
1420
+ input_ids,
1421
+ attention_mask=attention_mask,
1422
+ token_type_ids=token_type_ids,
1423
+ position_ids=position_ids,
1424
+ head_mask=head_mask,
1425
+ inputs_embeds=inputs_embeds,
1426
+ output_attentions=output_attentions,
1427
+ output_hidden_states=output_hidden_states,
1428
+ return_dict=return_dict,
1429
+ training=training,
1430
+ )
1431
+ sequence_output = outputs[0]
1432
+ logits = self.qa_outputs(sequence_output)
1433
+ start_logits, end_logits = tf.split(logits, 2, axis=-1)
1434
+ start_logits = tf.squeeze(start_logits, axis=-1)
1435
+ end_logits = tf.squeeze(end_logits, axis=-1)
1436
+ loss = None
1437
+
1438
+ if start_positions is not None and end_positions is not None:
1439
+ labels = {"start_position": start_positions}
1440
+ labels["end_position"] = end_positions
1441
+ loss = self.hf_compute_loss(labels, (start_logits, end_logits))
1442
+
1443
+ if not return_dict:
1444
+ output = (start_logits, end_logits) + outputs[1:]
1445
+ return ((loss,) + output) if loss is not None else output
1446
+
1447
+ return TFQuestionAnsweringModelOutput(
1448
+ loss=loss,
1449
+ start_logits=start_logits,
1450
+ end_logits=end_logits,
1451
+ hidden_states=outputs.hidden_states,
1452
+ attentions=outputs.attentions,
1453
+ )
1454
+
1455
+ def build(self, input_shape=None):
1456
+ if self.built:
1457
+ return
1458
+ self.built = True
1459
+ if getattr(self, "convbert", None) is not None:
1460
+ with tf.name_scope(self.convbert.name):
1461
+ self.convbert.build(None)
1462
+ if getattr(self, "qa_outputs", None) is not None:
1463
+ with tf.name_scope(self.qa_outputs.name):
1464
+ self.qa_outputs.build([None, None, self.config.hidden_size])
1465
+
1466
+
1467
+ __all__ = [
1468
+ "TFConvBertForMaskedLM",
1469
+ "TFConvBertForMultipleChoice",
1470
+ "TFConvBertForQuestionAnswering",
1471
+ "TFConvBertForSequenceClassification",
1472
+ "TFConvBertForTokenClassification",
1473
+ "TFConvBertLayer",
1474
+ "TFConvBertModel",
1475
+ "TFConvBertPreTrainedModel",
1476
+ ]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convbert/tokenization_convbert.py ADDED
@@ -0,0 +1,512 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2018 The HuggingFace Inc. team.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """Tokenization classes for ConvBERT."""
16
+
17
+ import collections
18
+ import os
19
+ import unicodedata
20
+ from typing import List, Optional, Tuple
21
+
22
+ from ...tokenization_utils import PreTrainedTokenizer, _is_control, _is_punctuation, _is_whitespace
23
+ from ...utils import logging
24
+
25
+
26
+ logger = logging.get_logger(__name__)
27
+
28
+ VOCAB_FILES_NAMES = {"vocab_file": "vocab.txt"}
29
+
30
+
31
+ # Copied from transformers.models.bert.tokenization_bert.load_vocab
32
+ def load_vocab(vocab_file):
33
+ """Loads a vocabulary file into a dictionary."""
34
+ vocab = collections.OrderedDict()
35
+ with open(vocab_file, "r", encoding="utf-8") as reader:
36
+ tokens = reader.readlines()
37
+ for index, token in enumerate(tokens):
38
+ token = token.rstrip("\n")
39
+ vocab[token] = index
40
+ return vocab
41
+
42
+
43
+ # Copied from transformers.models.bert.tokenization_bert.whitespace_tokenize
44
+ def whitespace_tokenize(text):
45
+ """Runs basic whitespace cleaning and splitting on a piece of text."""
46
+ text = text.strip()
47
+ if not text:
48
+ return []
49
+ tokens = text.split()
50
+ return tokens
51
+
52
+
53
+ # Copied from transformers.models.bert.tokenization_bert.BertTokenizer with bert-base-cased->YituTech/conv-bert-base, ConvBertTokenizer->BertTokenizer, BERT->ConvBERT
54
+ class ConvBertTokenizer(PreTrainedTokenizer):
55
+ r"""
56
+ Construct a ConvBERT tokenizer. Based on WordPiece.
57
+
58
+ This tokenizer inherits from [`PreTrainedTokenizer`] which contains most of the main methods. Users should refer to
59
+ this superclass for more information regarding those methods.
60
+
61
+ Args:
62
+ vocab_file (`str`):
63
+ File containing the vocabulary.
64
+ do_lower_case (`bool`, *optional*, defaults to `True`):
65
+ Whether or not to lowercase the input when tokenizing.
66
+ do_basic_tokenize (`bool`, *optional*, defaults to `True`):
67
+ Whether or not to do basic tokenization before WordPiece.
68
+ never_split (`Iterable`, *optional*):
69
+ Collection of tokens which will never be split during tokenization. Only has an effect when
70
+ `do_basic_tokenize=True`
71
+ unk_token (`str`, *optional*, defaults to `"[UNK]"`):
72
+ The unknown token. A token that is not in the vocabulary cannot be converted to an ID and is set to be this
73
+ token instead.
74
+ sep_token (`str`, *optional*, defaults to `"[SEP]"`):
75
+ The separator token, which is used when building a sequence from multiple sequences, e.g. two sequences for
76
+ sequence classification or for a text and a question for question answering. It is also used as the last
77
+ token of a sequence built with special tokens.
78
+ pad_token (`str`, *optional*, defaults to `"[PAD]"`):
79
+ The token used for padding, for example when batching sequences of different lengths.
80
+ cls_token (`str`, *optional*, defaults to `"[CLS]"`):
81
+ The classifier token which is used when doing sequence classification (classification of the whole sequence
82
+ instead of per-token classification). It is the first token of the sequence when built with special tokens.
83
+ mask_token (`str`, *optional*, defaults to `"[MASK]"`):
84
+ The token used for masking values. This is the token used when training this model with masked language
85
+ modeling. This is the token which the model will try to predict.
86
+ tokenize_chinese_chars (`bool`, *optional*, defaults to `True`):
87
+ Whether or not to tokenize Chinese characters.
88
+
89
+ This should likely be deactivated for Japanese (see this
90
+ [issue](https://github.com/huggingface/transformers/issues/328)).
91
+ strip_accents (`bool`, *optional*):
92
+ Whether or not to strip all accents. If this option is not specified, then it will be determined by the
93
+ value for `lowercase` (as in the original ConvBERT).
94
+ clean_up_tokenization_spaces (`bool`, *optional*, defaults to `True`):
95
+ Whether or not to cleanup spaces after decoding, cleanup consists in removing potential artifacts like
96
+ extra spaces.
97
+ """
98
+
99
+ vocab_files_names = VOCAB_FILES_NAMES
100
+
101
+ def __init__(
102
+ self,
103
+ vocab_file,
104
+ do_lower_case=True,
105
+ do_basic_tokenize=True,
106
+ never_split=None,
107
+ unk_token="[UNK]",
108
+ sep_token="[SEP]",
109
+ pad_token="[PAD]",
110
+ cls_token="[CLS]",
111
+ mask_token="[MASK]",
112
+ tokenize_chinese_chars=True,
113
+ strip_accents=None,
114
+ clean_up_tokenization_spaces=True,
115
+ **kwargs,
116
+ ):
117
+ if not os.path.isfile(vocab_file):
118
+ raise ValueError(
119
+ f"Can't find a vocabulary file at path '{vocab_file}'. To load the vocabulary from a Google pretrained"
120
+ " model use `tokenizer = BertTokenizer.from_pretrained(PRETRAINED_MODEL_NAME)`"
121
+ )
122
+ self.vocab = load_vocab(vocab_file)
123
+ self.ids_to_tokens = collections.OrderedDict([(ids, tok) for tok, ids in self.vocab.items()])
124
+ self.do_basic_tokenize = do_basic_tokenize
125
+ if do_basic_tokenize:
126
+ self.basic_tokenizer = BasicTokenizer(
127
+ do_lower_case=do_lower_case,
128
+ never_split=never_split,
129
+ tokenize_chinese_chars=tokenize_chinese_chars,
130
+ strip_accents=strip_accents,
131
+ )
132
+
133
+ self.wordpiece_tokenizer = WordpieceTokenizer(vocab=self.vocab, unk_token=str(unk_token))
134
+
135
+ super().__init__(
136
+ do_lower_case=do_lower_case,
137
+ do_basic_tokenize=do_basic_tokenize,
138
+ never_split=never_split,
139
+ unk_token=unk_token,
140
+ sep_token=sep_token,
141
+ pad_token=pad_token,
142
+ cls_token=cls_token,
143
+ mask_token=mask_token,
144
+ tokenize_chinese_chars=tokenize_chinese_chars,
145
+ strip_accents=strip_accents,
146
+ clean_up_tokenization_spaces=clean_up_tokenization_spaces,
147
+ **kwargs,
148
+ )
149
+
150
+ @property
151
+ def do_lower_case(self):
152
+ return self.basic_tokenizer.do_lower_case
153
+
154
+ @property
155
+ def vocab_size(self):
156
+ return len(self.vocab)
157
+
158
+ def get_vocab(self):
159
+ return dict(self.vocab, **self.added_tokens_encoder)
160
+
161
+ def _tokenize(self, text, split_special_tokens=False):
162
+ split_tokens = []
163
+ if self.do_basic_tokenize:
164
+ for token in self.basic_tokenizer.tokenize(
165
+ text, never_split=self.all_special_tokens if not split_special_tokens else None
166
+ ):
167
+ # If the token is part of the never_split set
168
+ if token in self.basic_tokenizer.never_split:
169
+ split_tokens.append(token)
170
+ else:
171
+ split_tokens += self.wordpiece_tokenizer.tokenize(token)
172
+ else:
173
+ split_tokens = self.wordpiece_tokenizer.tokenize(text)
174
+ return split_tokens
175
+
176
+ def _convert_token_to_id(self, token):
177
+ """Converts a token (str) in an id using the vocab."""
178
+ return self.vocab.get(token, self.vocab.get(self.unk_token))
179
+
180
+ def _convert_id_to_token(self, index):
181
+ """Converts an index (integer) in a token (str) using the vocab."""
182
+ return self.ids_to_tokens.get(index, self.unk_token)
183
+
184
+ def convert_tokens_to_string(self, tokens):
185
+ """Converts a sequence of tokens (string) in a single string."""
186
+ out_string = " ".join(tokens).replace(" ##", "").strip()
187
+ return out_string
188
+
189
+ def build_inputs_with_special_tokens(
190
+ self, token_ids_0: List[int], token_ids_1: Optional[List[int]] = None
191
+ ) -> List[int]:
192
+ """
193
+ Build model inputs from a sequence or a pair of sequence for sequence classification tasks by concatenating and
194
+ adding special tokens. A ConvBERT sequence has the following format:
195
+
196
+ - single sequence: `[CLS] X [SEP]`
197
+ - pair of sequences: `[CLS] A [SEP] B [SEP]`
198
+
199
+ Args:
200
+ token_ids_0 (`List[int]`):
201
+ List of IDs to which the special tokens will be added.
202
+ token_ids_1 (`List[int]`, *optional*):
203
+ Optional second list of IDs for sequence pairs.
204
+
205
+ Returns:
206
+ `List[int]`: List of [input IDs](../glossary#input-ids) with the appropriate special tokens.
207
+ """
208
+ if token_ids_1 is None:
209
+ return [self.cls_token_id] + token_ids_0 + [self.sep_token_id]
210
+ cls = [self.cls_token_id]
211
+ sep = [self.sep_token_id]
212
+ return cls + token_ids_0 + sep + token_ids_1 + sep
213
+
214
+ def get_special_tokens_mask(
215
+ self, token_ids_0: List[int], token_ids_1: Optional[List[int]] = None, already_has_special_tokens: bool = False
216
+ ) -> List[int]:
217
+ """
218
+ Retrieve sequence ids from a token list that has no special tokens added. This method is called when adding
219
+ special tokens using the tokenizer `prepare_for_model` method.
220
+
221
+ Args:
222
+ token_ids_0 (`List[int]`):
223
+ List of IDs.
224
+ token_ids_1 (`List[int]`, *optional*):
225
+ Optional second list of IDs for sequence pairs.
226
+ already_has_special_tokens (`bool`, *optional*, defaults to `False`):
227
+ Whether or not the token list is already formatted with special tokens for the model.
228
+
229
+ Returns:
230
+ `List[int]`: A list of integers in the range [0, 1]: 1 for a special token, 0 for a sequence token.
231
+ """
232
+
233
+ if already_has_special_tokens:
234
+ return super().get_special_tokens_mask(
235
+ token_ids_0=token_ids_0, token_ids_1=token_ids_1, already_has_special_tokens=True
236
+ )
237
+
238
+ if token_ids_1 is not None:
239
+ return [1] + ([0] * len(token_ids_0)) + [1] + ([0] * len(token_ids_1)) + [1]
240
+ return [1] + ([0] * len(token_ids_0)) + [1]
241
+
242
+ def create_token_type_ids_from_sequences(
243
+ self, token_ids_0: List[int], token_ids_1: Optional[List[int]] = None
244
+ ) -> List[int]:
245
+ """
246
+ Create a mask from the two sequences passed to be used in a sequence-pair classification task. A ConvBERT sequence
247
+ pair mask has the following format:
248
+
249
+ ```
250
+ 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1
251
+ | first sequence | second sequence |
252
+ ```
253
+
254
+ If `token_ids_1` is `None`, this method only returns the first portion of the mask (0s).
255
+
256
+ Args:
257
+ token_ids_0 (`List[int]`):
258
+ List of IDs.
259
+ token_ids_1 (`List[int]`, *optional*):
260
+ Optional second list of IDs for sequence pairs.
261
+
262
+ Returns:
263
+ `List[int]`: List of [token type IDs](../glossary#token-type-ids) according to the given sequence(s).
264
+ """
265
+ sep = [self.sep_token_id]
266
+ cls = [self.cls_token_id]
267
+ if token_ids_1 is None:
268
+ return len(cls + token_ids_0 + sep) * [0]
269
+ return len(cls + token_ids_0 + sep) * [0] + len(token_ids_1 + sep) * [1]
270
+
271
+ def save_vocabulary(self, save_directory: str, filename_prefix: Optional[str] = None) -> Tuple[str]:
272
+ index = 0
273
+ if os.path.isdir(save_directory):
274
+ vocab_file = os.path.join(
275
+ save_directory, (filename_prefix + "-" if filename_prefix else "") + VOCAB_FILES_NAMES["vocab_file"]
276
+ )
277
+ else:
278
+ vocab_file = (filename_prefix + "-" if filename_prefix else "") + save_directory
279
+ with open(vocab_file, "w", encoding="utf-8") as writer:
280
+ for token, token_index in sorted(self.vocab.items(), key=lambda kv: kv[1]):
281
+ if index != token_index:
282
+ logger.warning(
283
+ f"Saving vocabulary to {vocab_file}: vocabulary indices are not consecutive."
284
+ " Please check that the vocabulary is not corrupted!"
285
+ )
286
+ index = token_index
287
+ writer.write(token + "\n")
288
+ index += 1
289
+ return (vocab_file,)
290
+
291
+
292
+ # Copied from transformers.models.bert.tokenization_bert.BasicTokenizer
293
+ class BasicTokenizer:
294
+ """
295
+ Constructs a BasicTokenizer that will run basic tokenization (punctuation splitting, lower casing, etc.).
296
+
297
+ Args:
298
+ do_lower_case (`bool`, *optional*, defaults to `True`):
299
+ Whether or not to lowercase the input when tokenizing.
300
+ never_split (`Iterable`, *optional*):
301
+ Collection of tokens which will never be split during tokenization. Only has an effect when
302
+ `do_basic_tokenize=True`
303
+ tokenize_chinese_chars (`bool`, *optional*, defaults to `True`):
304
+ Whether or not to tokenize Chinese characters.
305
+
306
+ This should likely be deactivated for Japanese (see this
307
+ [issue](https://github.com/huggingface/transformers/issues/328)).
308
+ strip_accents (`bool`, *optional*):
309
+ Whether or not to strip all accents. If this option is not specified, then it will be determined by the
310
+ value for `lowercase` (as in the original BERT).
311
+ do_split_on_punc (`bool`, *optional*, defaults to `True`):
312
+ In some instances we want to skip the basic punctuation splitting so that later tokenization can capture
313
+ the full context of the words, such as contractions.
314
+ """
315
+
316
+ def __init__(
317
+ self,
318
+ do_lower_case=True,
319
+ never_split=None,
320
+ tokenize_chinese_chars=True,
321
+ strip_accents=None,
322
+ do_split_on_punc=True,
323
+ ):
324
+ if never_split is None:
325
+ never_split = []
326
+ self.do_lower_case = do_lower_case
327
+ self.never_split = set(never_split)
328
+ self.tokenize_chinese_chars = tokenize_chinese_chars
329
+ self.strip_accents = strip_accents
330
+ self.do_split_on_punc = do_split_on_punc
331
+
332
+ def tokenize(self, text, never_split=None):
333
+ """
334
+ Basic Tokenization of a piece of text. For sub-word tokenization, see WordPieceTokenizer.
335
+
336
+ Args:
337
+ never_split (`List[str]`, *optional*)
338
+ Kept for backward compatibility purposes. Now implemented directly at the base class level (see
339
+ [`PreTrainedTokenizer.tokenize`]) List of token not to split.
340
+ """
341
+ # union() returns a new set by concatenating the two sets.
342
+ never_split = self.never_split.union(set(never_split)) if never_split else self.never_split
343
+ text = self._clean_text(text)
344
+
345
+ # This was added on November 1st, 2018 for the multilingual and Chinese
346
+ # models. This is also applied to the English models now, but it doesn't
347
+ # matter since the English models were not trained on any Chinese data
348
+ # and generally don't have any Chinese data in them (there are Chinese
349
+ # characters in the vocabulary because Wikipedia does have some Chinese
350
+ # words in the English Wikipedia.).
351
+ if self.tokenize_chinese_chars:
352
+ text = self._tokenize_chinese_chars(text)
353
+ # prevents treating the same character with different unicode codepoints as different characters
354
+ unicode_normalized_text = unicodedata.normalize("NFC", text)
355
+ orig_tokens = whitespace_tokenize(unicode_normalized_text)
356
+ split_tokens = []
357
+ for token in orig_tokens:
358
+ if token not in never_split:
359
+ if self.do_lower_case:
360
+ token = token.lower()
361
+ if self.strip_accents is not False:
362
+ token = self._run_strip_accents(token)
363
+ elif self.strip_accents:
364
+ token = self._run_strip_accents(token)
365
+ split_tokens.extend(self._run_split_on_punc(token, never_split))
366
+
367
+ output_tokens = whitespace_tokenize(" ".join(split_tokens))
368
+ return output_tokens
369
+
370
+ def _run_strip_accents(self, text):
371
+ """Strips accents from a piece of text."""
372
+ text = unicodedata.normalize("NFD", text)
373
+ output = []
374
+ for char in text:
375
+ cat = unicodedata.category(char)
376
+ if cat == "Mn":
377
+ continue
378
+ output.append(char)
379
+ return "".join(output)
380
+
381
+ def _run_split_on_punc(self, text, never_split=None):
382
+ """Splits punctuation on a piece of text."""
383
+ if not self.do_split_on_punc or (never_split is not None and text in never_split):
384
+ return [text]
385
+ chars = list(text)
386
+ i = 0
387
+ start_new_word = True
388
+ output = []
389
+ while i < len(chars):
390
+ char = chars[i]
391
+ if _is_punctuation(char):
392
+ output.append([char])
393
+ start_new_word = True
394
+ else:
395
+ if start_new_word:
396
+ output.append([])
397
+ start_new_word = False
398
+ output[-1].append(char)
399
+ i += 1
400
+
401
+ return ["".join(x) for x in output]
402
+
403
+ def _tokenize_chinese_chars(self, text):
404
+ """Adds whitespace around any CJK character."""
405
+ output = []
406
+ for char in text:
407
+ cp = ord(char)
408
+ if self._is_chinese_char(cp):
409
+ output.append(" ")
410
+ output.append(char)
411
+ output.append(" ")
412
+ else:
413
+ output.append(char)
414
+ return "".join(output)
415
+
416
+ def _is_chinese_char(self, cp):
417
+ """Checks whether CP is the codepoint of a CJK character."""
418
+ # This defines a "chinese character" as anything in the CJK Unicode block:
419
+ # https://en.wikipedia.org/wiki/CJK_Unified_Ideographs_(Unicode_block)
420
+ #
421
+ # Note that the CJK Unicode block is NOT all Japanese and Korean characters,
422
+ # despite its name. The modern Korean Hangul alphabet is a different block,
423
+ # as is Japanese Hiragana and Katakana. Those alphabets are used to write
424
+ # space-separated words, so they are not treated specially and handled
425
+ # like the all of the other languages.
426
+ if (
427
+ (cp >= 0x4E00 and cp <= 0x9FFF)
428
+ or (cp >= 0x3400 and cp <= 0x4DBF) #
429
+ or (cp >= 0x20000 and cp <= 0x2A6DF) #
430
+ or (cp >= 0x2A700 and cp <= 0x2B73F) #
431
+ or (cp >= 0x2B740 and cp <= 0x2B81F) #
432
+ or (cp >= 0x2B820 and cp <= 0x2CEAF) #
433
+ or (cp >= 0xF900 and cp <= 0xFAFF)
434
+ or (cp >= 0x2F800 and cp <= 0x2FA1F) #
435
+ ): #
436
+ return True
437
+
438
+ return False
439
+
440
+ def _clean_text(self, text):
441
+ """Performs invalid character removal and whitespace cleanup on text."""
442
+ output = []
443
+ for char in text:
444
+ cp = ord(char)
445
+ if cp == 0 or cp == 0xFFFD or _is_control(char):
446
+ continue
447
+ if _is_whitespace(char):
448
+ output.append(" ")
449
+ else:
450
+ output.append(char)
451
+ return "".join(output)
452
+
453
+
454
+ # Copied from transformers.models.bert.tokenization_bert.WordpieceTokenizer
455
+ class WordpieceTokenizer:
456
+ """Runs WordPiece tokenization."""
457
+
458
+ def __init__(self, vocab, unk_token, max_input_chars_per_word=100):
459
+ self.vocab = vocab
460
+ self.unk_token = unk_token
461
+ self.max_input_chars_per_word = max_input_chars_per_word
462
+
463
+ def tokenize(self, text):
464
+ """
465
+ Tokenizes a piece of text into its word pieces. This uses a greedy longest-match-first algorithm to perform
466
+ tokenization using the given vocabulary.
467
+
468
+ For example, `input = "unaffable"` wil return as output `["un", "##aff", "##able"]`.
469
+
470
+ Args:
471
+ text: A single token or whitespace separated tokens. This should have
472
+ already been passed through *BasicTokenizer*.
473
+
474
+ Returns:
475
+ A list of wordpiece tokens.
476
+ """
477
+
478
+ output_tokens = []
479
+ for token in whitespace_tokenize(text):
480
+ chars = list(token)
481
+ if len(chars) > self.max_input_chars_per_word:
482
+ output_tokens.append(self.unk_token)
483
+ continue
484
+
485
+ is_bad = False
486
+ start = 0
487
+ sub_tokens = []
488
+ while start < len(chars):
489
+ end = len(chars)
490
+ cur_substr = None
491
+ while start < end:
492
+ substr = "".join(chars[start:end])
493
+ if start > 0:
494
+ substr = "##" + substr
495
+ if substr in self.vocab:
496
+ cur_substr = substr
497
+ break
498
+ end -= 1
499
+ if cur_substr is None:
500
+ is_bad = True
501
+ break
502
+ sub_tokens.append(cur_substr)
503
+ start = end
504
+
505
+ if is_bad:
506
+ output_tokens.append(self.unk_token)
507
+ else:
508
+ output_tokens.extend(sub_tokens)
509
+ return output_tokens
510
+
511
+
512
+ __all__ = ["ConvBertTokenizer"]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convbert/tokenization_convbert_fast.py ADDED
@@ -0,0 +1,176 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright The HuggingFace Inc. team. All rights reserved.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """Tokenization classes for ConvBERT."""
16
+
17
+ import json
18
+ from typing import List, Optional, Tuple
19
+
20
+ from tokenizers import normalizers
21
+
22
+ from ...tokenization_utils_fast import PreTrainedTokenizerFast
23
+ from ...utils import logging
24
+ from .tokenization_convbert import ConvBertTokenizer
25
+
26
+
27
+ logger = logging.get_logger(__name__)
28
+
29
+ VOCAB_FILES_NAMES = {"vocab_file": "vocab.txt"}
30
+
31
+
32
+ # Copied from transformers.models.bert.tokenization_bert_fast.BertTokenizerFast with bert-base-cased->YituTech/conv-bert-base, Bert->ConvBert, BERT->ConvBERT
33
+ class ConvBertTokenizerFast(PreTrainedTokenizerFast):
34
+ r"""
35
+ Construct a "fast" ConvBERT tokenizer (backed by HuggingFace's *tokenizers* library). Based on WordPiece.
36
+
37
+ This tokenizer inherits from [`PreTrainedTokenizerFast`] which contains most of the main methods. Users should
38
+ refer to this superclass for more information regarding those methods.
39
+
40
+ Args:
41
+ vocab_file (`str`):
42
+ File containing the vocabulary.
43
+ do_lower_case (`bool`, *optional*, defaults to `True`):
44
+ Whether or not to lowercase the input when tokenizing.
45
+ unk_token (`str`, *optional*, defaults to `"[UNK]"`):
46
+ The unknown token. A token that is not in the vocabulary cannot be converted to an ID and is set to be this
47
+ token instead.
48
+ sep_token (`str`, *optional*, defaults to `"[SEP]"`):
49
+ The separator token, which is used when building a sequence from multiple sequences, e.g. two sequences for
50
+ sequence classification or for a text and a question for question answering. It is also used as the last
51
+ token of a sequence built with special tokens.
52
+ pad_token (`str`, *optional*, defaults to `"[PAD]"`):
53
+ The token used for padding, for example when batching sequences of different lengths.
54
+ cls_token (`str`, *optional*, defaults to `"[CLS]"`):
55
+ The classifier token which is used when doing sequence classification (classification of the whole sequence
56
+ instead of per-token classification). It is the first token of the sequence when built with special tokens.
57
+ mask_token (`str`, *optional*, defaults to `"[MASK]"`):
58
+ The token used for masking values. This is the token used when training this model with masked language
59
+ modeling. This is the token which the model will try to predict.
60
+ clean_text (`bool`, *optional*, defaults to `True`):
61
+ Whether or not to clean the text before tokenization by removing any control characters and replacing all
62
+ whitespaces by the classic one.
63
+ tokenize_chinese_chars (`bool`, *optional*, defaults to `True`):
64
+ Whether or not to tokenize Chinese characters. This should likely be deactivated for Japanese (see [this
65
+ issue](https://github.com/huggingface/transformers/issues/328)).
66
+ strip_accents (`bool`, *optional*):
67
+ Whether or not to strip all accents. If this option is not specified, then it will be determined by the
68
+ value for `lowercase` (as in the original ConvBERT).
69
+ wordpieces_prefix (`str`, *optional*, defaults to `"##"`):
70
+ The prefix for subwords.
71
+ """
72
+
73
+ vocab_files_names = VOCAB_FILES_NAMES
74
+ slow_tokenizer_class = ConvBertTokenizer
75
+
76
+ def __init__(
77
+ self,
78
+ vocab_file=None,
79
+ tokenizer_file=None,
80
+ do_lower_case=True,
81
+ unk_token="[UNK]",
82
+ sep_token="[SEP]",
83
+ pad_token="[PAD]",
84
+ cls_token="[CLS]",
85
+ mask_token="[MASK]",
86
+ tokenize_chinese_chars=True,
87
+ strip_accents=None,
88
+ **kwargs,
89
+ ):
90
+ super().__init__(
91
+ vocab_file,
92
+ tokenizer_file=tokenizer_file,
93
+ do_lower_case=do_lower_case,
94
+ unk_token=unk_token,
95
+ sep_token=sep_token,
96
+ pad_token=pad_token,
97
+ cls_token=cls_token,
98
+ mask_token=mask_token,
99
+ tokenize_chinese_chars=tokenize_chinese_chars,
100
+ strip_accents=strip_accents,
101
+ **kwargs,
102
+ )
103
+
104
+ normalizer_state = json.loads(self.backend_tokenizer.normalizer.__getstate__())
105
+ if (
106
+ normalizer_state.get("lowercase", do_lower_case) != do_lower_case
107
+ or normalizer_state.get("strip_accents", strip_accents) != strip_accents
108
+ or normalizer_state.get("handle_chinese_chars", tokenize_chinese_chars) != tokenize_chinese_chars
109
+ ):
110
+ normalizer_class = getattr(normalizers, normalizer_state.pop("type"))
111
+ normalizer_state["lowercase"] = do_lower_case
112
+ normalizer_state["strip_accents"] = strip_accents
113
+ normalizer_state["handle_chinese_chars"] = tokenize_chinese_chars
114
+ self.backend_tokenizer.normalizer = normalizer_class(**normalizer_state)
115
+
116
+ self.do_lower_case = do_lower_case
117
+
118
+ def build_inputs_with_special_tokens(self, token_ids_0, token_ids_1=None):
119
+ """
120
+ Build model inputs from a sequence or a pair of sequence for sequence classification tasks by concatenating and
121
+ adding special tokens. A ConvBERT sequence has the following format:
122
+
123
+ - single sequence: `[CLS] X [SEP]`
124
+ - pair of sequences: `[CLS] A [SEP] B [SEP]`
125
+
126
+ Args:
127
+ token_ids_0 (`List[int]`):
128
+ List of IDs to which the special tokens will be added.
129
+ token_ids_1 (`List[int]`, *optional*):
130
+ Optional second list of IDs for sequence pairs.
131
+
132
+ Returns:
133
+ `List[int]`: List of [input IDs](../glossary#input-ids) with the appropriate special tokens.
134
+ """
135
+ output = [self.cls_token_id] + token_ids_0 + [self.sep_token_id]
136
+
137
+ if token_ids_1 is not None:
138
+ output += token_ids_1 + [self.sep_token_id]
139
+
140
+ return output
141
+
142
+ def create_token_type_ids_from_sequences(
143
+ self, token_ids_0: List[int], token_ids_1: Optional[List[int]] = None
144
+ ) -> List[int]:
145
+ """
146
+ Create a mask from the two sequences passed to be used in a sequence-pair classification task. A ConvBERT sequence
147
+ pair mask has the following format:
148
+
149
+ ```
150
+ 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1
151
+ | first sequence | second sequence |
152
+ ```
153
+
154
+ If `token_ids_1` is `None`, this method only returns the first portion of the mask (0s).
155
+
156
+ Args:
157
+ token_ids_0 (`List[int]`):
158
+ List of IDs.
159
+ token_ids_1 (`List[int]`, *optional*):
160
+ Optional second list of IDs for sequence pairs.
161
+
162
+ Returns:
163
+ `List[int]`: List of [token type IDs](../glossary#token-type-ids) according to the given sequence(s).
164
+ """
165
+ sep = [self.sep_token_id]
166
+ cls = [self.cls_token_id]
167
+ if token_ids_1 is None:
168
+ return len(cls + token_ids_0 + sep) * [0]
169
+ return len(cls + token_ids_0 + sep) * [0] + len(token_ids_1 + sep) * [1]
170
+
171
+ def save_vocabulary(self, save_directory: str, filename_prefix: Optional[str] = None) -> Tuple[str]:
172
+ files = self._tokenizer.model.save(save_directory, name=filename_prefix)
173
+ return tuple(files)
174
+
175
+
176
+ __all__ = ["ConvBertTokenizerFast"]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convnext/__init__.py ADDED
@@ -0,0 +1,31 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # Copyright 2024 The HuggingFace Team. All rights reserved.
2
+ #
3
+ # Licensed under the Apache License, Version 2.0 (the "License");
4
+ # you may not use this file except in compliance with the License.
5
+ # You may obtain a copy of the License at
6
+ #
7
+ # http://www.apache.org/licenses/LICENSE-2.0
8
+ #
9
+ # Unless required by applicable law or agreed to in writing, software
10
+ # distributed under the License is distributed on an "AS IS" BASIS,
11
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12
+ # See the License for the specific language governing permissions and
13
+ # limitations under the License.
14
+ from typing import TYPE_CHECKING
15
+
16
+ from ...utils import _LazyModule
17
+ from ...utils.import_utils import define_import_structure
18
+
19
+
20
+ if TYPE_CHECKING:
21
+ from .configuration_convnext import *
22
+ from .feature_extraction_convnext import *
23
+ from .image_processing_convnext import *
24
+ from .image_processing_convnext_fast import *
25
+ from .modeling_convnext import *
26
+ from .modeling_tf_convnext import *
27
+ else:
28
+ import sys
29
+
30
+ _file = globals()["__file__"]
31
+ sys.modules[__name__] = _LazyModule(__name__, _file, define_import_structure(_file), module_spec=__spec__)
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convnext/configuration_convnext.py ADDED
@@ -0,0 +1,142 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2022 Meta Platforms, Inc. and The HuggingFace Inc. team. All rights reserved.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """ConvNeXT model configuration"""
16
+
17
+ from collections import OrderedDict
18
+ from typing import Mapping
19
+
20
+ from packaging import version
21
+
22
+ from ...configuration_utils import PretrainedConfig
23
+ from ...onnx import OnnxConfig
24
+ from ...utils import logging
25
+ from ...utils.backbone_utils import BackboneConfigMixin, get_aligned_output_features_output_indices
26
+
27
+
28
+ logger = logging.get_logger(__name__)
29
+
30
+
31
+ class ConvNextConfig(BackboneConfigMixin, PretrainedConfig):
32
+ r"""
33
+ This is the configuration class to store the configuration of a [`ConvNextModel`]. It is used to instantiate an
34
+ ConvNeXT model according to the specified arguments, defining the model architecture. Instantiating a configuration
35
+ with the defaults will yield a similar configuration to that of the ConvNeXT
36
+ [facebook/convnext-tiny-224](https://huggingface.co/facebook/convnext-tiny-224) architecture.
37
+
38
+ Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
39
+ documentation from [`PretrainedConfig`] for more information.
40
+
41
+ Args:
42
+ num_channels (`int`, *optional*, defaults to 3):
43
+ The number of input channels.
44
+ patch_size (`int`, *optional*, defaults to 4):
45
+ Patch size to use in the patch embedding layer.
46
+ num_stages (`int`, *optional*, defaults to 4):
47
+ The number of stages in the model.
48
+ hidden_sizes (`List[int]`, *optional*, defaults to [96, 192, 384, 768]):
49
+ Dimensionality (hidden size) at each stage.
50
+ depths (`List[int]`, *optional*, defaults to [3, 3, 9, 3]):
51
+ Depth (number of blocks) for each stage.
52
+ hidden_act (`str` or `function`, *optional*, defaults to `"gelu"`):
53
+ The non-linear activation function (function or string) in each block. If string, `"gelu"`, `"relu"`,
54
+ `"selu"` and `"gelu_new"` are supported.
55
+ initializer_range (`float`, *optional*, defaults to 0.02):
56
+ The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
57
+ layer_norm_eps (`float`, *optional*, defaults to 1e-12):
58
+ The epsilon used by the layer normalization layers.
59
+ layer_scale_init_value (`float`, *optional*, defaults to 1e-6):
60
+ The initial value for the layer scale.
61
+ drop_path_rate (`float`, *optional*, defaults to 0.0):
62
+ The drop rate for stochastic depth.
63
+ out_features (`List[str]`, *optional*):
64
+ If used as backbone, list of features to output. Can be any of `"stem"`, `"stage1"`, `"stage2"`, etc.
65
+ (depending on how many stages the model has). If unset and `out_indices` is set, will default to the
66
+ corresponding stages. If unset and `out_indices` is unset, will default to the last stage. Must be in the
67
+ same order as defined in the `stage_names` attribute.
68
+ out_indices (`List[int]`, *optional*):
69
+ If used as backbone, list of indices of features to output. Can be any of 0, 1, 2, etc. (depending on how
70
+ many stages the model has). If unset and `out_features` is set, will default to the corresponding stages.
71
+ If unset and `out_features` is unset, will default to the last stage. Must be in the
72
+ same order as defined in the `stage_names` attribute.
73
+
74
+ Example:
75
+ ```python
76
+ >>> from transformers import ConvNextConfig, ConvNextModel
77
+
78
+ >>> # Initializing a ConvNext convnext-tiny-224 style configuration
79
+ >>> configuration = ConvNextConfig()
80
+
81
+ >>> # Initializing a model (with random weights) from the convnext-tiny-224 style configuration
82
+ >>> model = ConvNextModel(configuration)
83
+
84
+ >>> # Accessing the model configuration
85
+ >>> configuration = model.config
86
+ ```"""
87
+
88
+ model_type = "convnext"
89
+
90
+ def __init__(
91
+ self,
92
+ num_channels=3,
93
+ patch_size=4,
94
+ num_stages=4,
95
+ hidden_sizes=None,
96
+ depths=None,
97
+ hidden_act="gelu",
98
+ initializer_range=0.02,
99
+ layer_norm_eps=1e-12,
100
+ layer_scale_init_value=1e-6,
101
+ drop_path_rate=0.0,
102
+ image_size=224,
103
+ out_features=None,
104
+ out_indices=None,
105
+ **kwargs,
106
+ ):
107
+ super().__init__(**kwargs)
108
+
109
+ self.num_channels = num_channels
110
+ self.patch_size = patch_size
111
+ self.num_stages = num_stages
112
+ self.hidden_sizes = [96, 192, 384, 768] if hidden_sizes is None else hidden_sizes
113
+ self.depths = [3, 3, 9, 3] if depths is None else depths
114
+ self.hidden_act = hidden_act
115
+ self.initializer_range = initializer_range
116
+ self.layer_norm_eps = layer_norm_eps
117
+ self.layer_scale_init_value = layer_scale_init_value
118
+ self.drop_path_rate = drop_path_rate
119
+ self.image_size = image_size
120
+ self.stage_names = ["stem"] + [f"stage{idx}" for idx in range(1, len(self.depths) + 1)]
121
+ self._out_features, self._out_indices = get_aligned_output_features_output_indices(
122
+ out_features=out_features, out_indices=out_indices, stage_names=self.stage_names
123
+ )
124
+
125
+
126
+ class ConvNextOnnxConfig(OnnxConfig):
127
+ torch_onnx_minimum_version = version.parse("1.11")
128
+
129
+ @property
130
+ def inputs(self) -> Mapping[str, Mapping[int, str]]:
131
+ return OrderedDict(
132
+ [
133
+ ("pixel_values", {0: "batch", 1: "num_channels", 2: "height", 3: "width"}),
134
+ ]
135
+ )
136
+
137
+ @property
138
+ def atol_for_validation(self) -> float:
139
+ return 1e-5
140
+
141
+
142
+ __all__ = ["ConvNextConfig", "ConvNextOnnxConfig"]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convnext/convert_convnext_to_pytorch.py ADDED
@@ -0,0 +1,242 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2022 The HuggingFace Inc. team.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """Convert ConvNext checkpoints from the original repository.
16
+
17
+ URL: https://github.com/facebookresearch/ConvNeXt"""
18
+
19
+ import argparse
20
+ import json
21
+ from pathlib import Path
22
+
23
+ import requests
24
+ import torch
25
+ from huggingface_hub import hf_hub_download
26
+ from PIL import Image
27
+
28
+ from transformers import ConvNextConfig, ConvNextForImageClassification, ConvNextImageProcessor
29
+ from transformers.utils import logging
30
+
31
+
32
+ logging.set_verbosity_info()
33
+ logger = logging.get_logger(__name__)
34
+
35
+
36
+ def get_convnext_config(checkpoint_url):
37
+ config = ConvNextConfig()
38
+
39
+ if "tiny" in checkpoint_url:
40
+ depths = [3, 3, 9, 3]
41
+ hidden_sizes = [96, 192, 384, 768]
42
+ if "small" in checkpoint_url:
43
+ depths = [3, 3, 27, 3]
44
+ hidden_sizes = [96, 192, 384, 768]
45
+ if "base" in checkpoint_url:
46
+ depths = [3, 3, 27, 3]
47
+ hidden_sizes = [128, 256, 512, 1024]
48
+ if "large" in checkpoint_url:
49
+ depths = [3, 3, 27, 3]
50
+ hidden_sizes = [192, 384, 768, 1536]
51
+ if "xlarge" in checkpoint_url:
52
+ depths = [3, 3, 27, 3]
53
+ hidden_sizes = [256, 512, 1024, 2048]
54
+
55
+ if "1k" in checkpoint_url:
56
+ num_labels = 1000
57
+ filename = "imagenet-1k-id2label.json"
58
+ expected_shape = (1, 1000)
59
+ else:
60
+ num_labels = 21841
61
+ filename = "imagenet-22k-id2label.json"
62
+ expected_shape = (1, 21841)
63
+
64
+ repo_id = "huggingface/label-files"
65
+ config.num_labels = num_labels
66
+ id2label = json.load(open(hf_hub_download(repo_id, filename, repo_type="dataset"), "r"))
67
+ id2label = {int(k): v for k, v in id2label.items()}
68
+ if "1k" not in checkpoint_url:
69
+ # this dataset contains 21843 labels but the model only has 21841
70
+ # we delete the classes as mentioned in https://github.com/google-research/big_transfer/issues/18
71
+ del id2label[9205]
72
+ del id2label[15027]
73
+ config.id2label = id2label
74
+ config.label2id = {v: k for k, v in id2label.items()}
75
+ config.hidden_sizes = hidden_sizes
76
+ config.depths = depths
77
+
78
+ return config, expected_shape
79
+
80
+
81
+ def rename_key(name):
82
+ if "downsample_layers.0.0" in name:
83
+ name = name.replace("downsample_layers.0.0", "embeddings.patch_embeddings")
84
+ if "downsample_layers.0.1" in name:
85
+ name = name.replace("downsample_layers.0.1", "embeddings.norm") # we rename to layernorm later on
86
+ if "downsample_layers.1.0" in name:
87
+ name = name.replace("downsample_layers.1.0", "stages.1.downsampling_layer.0")
88
+ if "downsample_layers.1.1" in name:
89
+ name = name.replace("downsample_layers.1.1", "stages.1.downsampling_layer.1")
90
+ if "downsample_layers.2.0" in name:
91
+ name = name.replace("downsample_layers.2.0", "stages.2.downsampling_layer.0")
92
+ if "downsample_layers.2.1" in name:
93
+ name = name.replace("downsample_layers.2.1", "stages.2.downsampling_layer.1")
94
+ if "downsample_layers.3.0" in name:
95
+ name = name.replace("downsample_layers.3.0", "stages.3.downsampling_layer.0")
96
+ if "downsample_layers.3.1" in name:
97
+ name = name.replace("downsample_layers.3.1", "stages.3.downsampling_layer.1")
98
+ if "stages" in name and "downsampling_layer" not in name:
99
+ # stages.0.0. for instance should be renamed to stages.0.layers.0.
100
+ name = name[: len("stages.0")] + ".layers" + name[len("stages.0") :]
101
+ if "stages" in name:
102
+ name = name.replace("stages", "encoder.stages")
103
+ if "norm" in name:
104
+ name = name.replace("norm", "layernorm")
105
+ if "gamma" in name:
106
+ name = name.replace("gamma", "layer_scale_parameter")
107
+ if "head" in name:
108
+ name = name.replace("head", "classifier")
109
+
110
+ return name
111
+
112
+
113
+ # We will verify our results on an image of cute cats
114
+ def prepare_img():
115
+ url = "http://images.cocodataset.org/val2017/000000039769.jpg"
116
+ im = Image.open(requests.get(url, stream=True).raw)
117
+ return im
118
+
119
+
120
+ @torch.no_grad()
121
+ def convert_convnext_checkpoint(checkpoint_url, pytorch_dump_folder_path):
122
+ """
123
+ Copy/paste/tweak model's weights to our ConvNext structure.
124
+ """
125
+
126
+ # define ConvNext configuration based on URL
127
+ config, expected_shape = get_convnext_config(checkpoint_url)
128
+ # load original state_dict from URL
129
+ state_dict = torch.hub.load_state_dict_from_url(checkpoint_url)["model"]
130
+ # rename keys
131
+ for key in state_dict.copy().keys():
132
+ val = state_dict.pop(key)
133
+ state_dict[rename_key(key)] = val
134
+ # add prefix to all keys expect classifier head
135
+ for key in state_dict.copy().keys():
136
+ val = state_dict.pop(key)
137
+ if not key.startswith("classifier"):
138
+ key = "convnext." + key
139
+ state_dict[key] = val
140
+
141
+ # load HuggingFace model
142
+ model = ConvNextForImageClassification(config)
143
+ model.load_state_dict(state_dict)
144
+ model.eval()
145
+
146
+ # Check outputs on an image, prepared by ConvNextImageProcessor
147
+ size = 224 if "224" in checkpoint_url else 384
148
+ image_processor = ConvNextImageProcessor(size=size)
149
+ pixel_values = image_processor(images=prepare_img(), return_tensors="pt").pixel_values
150
+
151
+ logits = model(pixel_values).logits
152
+
153
+ # note: the logits below were obtained without center cropping
154
+ if checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnext_tiny_1k_224_ema.pth":
155
+ expected_logits = torch.tensor([-0.1210, -0.6605, 0.1918])
156
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnext_small_1k_224_ema.pth":
157
+ expected_logits = torch.tensor([-0.4473, -0.1847, -0.6365])
158
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnext_base_1k_224_ema.pth":
159
+ expected_logits = torch.tensor([0.4525, 0.7539, 0.0308])
160
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnext_base_1k_384.pth":
161
+ expected_logits = torch.tensor([0.3561, 0.6350, -0.0384])
162
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnext_large_1k_224_ema.pth":
163
+ expected_logits = torch.tensor([0.4174, -0.0989, 0.1489])
164
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnext_large_1k_384.pth":
165
+ expected_logits = torch.tensor([0.2513, -0.1349, -0.1613])
166
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnext_base_22k_224.pth":
167
+ expected_logits = torch.tensor([1.2980, 0.3631, -0.1198])
168
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnext_large_22k_224.pth":
169
+ expected_logits = torch.tensor([1.2963, 0.1227, 0.1723])
170
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnext_xlarge_22k_224.pth":
171
+ expected_logits = torch.tensor([1.7956, 0.8390, 0.2820])
172
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnext_base_22k_1k_224.pth":
173
+ expected_logits = torch.tensor([-0.2822, -0.0502, -0.0878])
174
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnext_base_22k_1k_384.pth":
175
+ expected_logits = torch.tensor([-0.5672, -0.0730, -0.4348])
176
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnext_large_22k_1k_224.pth":
177
+ expected_logits = torch.tensor([0.2681, 0.2365, 0.6246])
178
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnext_large_22k_1k_384.pth":
179
+ expected_logits = torch.tensor([-0.2642, 0.3931, 0.5116])
180
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnext_xlarge_22k_1k_224_ema.pth":
181
+ expected_logits = torch.tensor([-0.6677, -0.1873, -0.8379])
182
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnext_xlarge_22k_1k_384_ema.pth":
183
+ expected_logits = torch.tensor([-0.7749, -0.2967, -0.6444])
184
+ else:
185
+ raise ValueError(f"Unknown URL: {checkpoint_url}")
186
+
187
+ assert torch.allclose(logits[0, :3], expected_logits, atol=1e-3)
188
+ assert logits.shape == expected_shape
189
+
190
+ Path(pytorch_dump_folder_path).mkdir(exist_ok=True)
191
+ print(f"Saving model to {pytorch_dump_folder_path}")
192
+ model.save_pretrained(pytorch_dump_folder_path)
193
+ print(f"Saving image processor to {pytorch_dump_folder_path}")
194
+ image_processor.save_pretrained(pytorch_dump_folder_path)
195
+
196
+ print("Pushing model to the hub...")
197
+ model_name = "convnext"
198
+ if "tiny" in checkpoint_url:
199
+ model_name += "-tiny"
200
+ elif "small" in checkpoint_url:
201
+ model_name += "-small"
202
+ elif "base" in checkpoint_url:
203
+ model_name += "-base"
204
+ elif "xlarge" in checkpoint_url:
205
+ model_name += "-xlarge"
206
+ elif "large" in checkpoint_url:
207
+ model_name += "-large"
208
+ if "224" in checkpoint_url:
209
+ model_name += "-224"
210
+ elif "384" in checkpoint_url:
211
+ model_name += "-384"
212
+ if "22k" in checkpoint_url and "1k" not in checkpoint_url:
213
+ model_name += "-22k"
214
+ if "22k" in checkpoint_url and "1k" in checkpoint_url:
215
+ model_name += "-22k-1k"
216
+
217
+ model.push_to_hub(
218
+ repo_path_or_name=Path(pytorch_dump_folder_path, model_name),
219
+ organization="nielsr",
220
+ commit_message="Add model",
221
+ )
222
+
223
+
224
+ if __name__ == "__main__":
225
+ parser = argparse.ArgumentParser()
226
+ # Required parameters
227
+ parser.add_argument(
228
+ "--checkpoint_url",
229
+ default="https://dl.fbaipublicfiles.com/convnext/convnext_tiny_1k_224_ema.pth",
230
+ type=str,
231
+ help="URL of the original ConvNeXT checkpoint you'd like to convert.",
232
+ )
233
+ parser.add_argument(
234
+ "--pytorch_dump_folder_path",
235
+ default=None,
236
+ type=str,
237
+ required=True,
238
+ help="Path to the output PyTorch model directory.",
239
+ )
240
+
241
+ args = parser.parse_args()
242
+ convert_convnext_checkpoint(args.checkpoint_url, args.pytorch_dump_folder_path)
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convnext/feature_extraction_convnext.py ADDED
@@ -0,0 +1,36 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2022 The HuggingFace Inc. team. All rights reserved.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """Feature extractor class for ConvNeXT."""
16
+
17
+ import warnings
18
+
19
+ from ...utils import logging
20
+ from .image_processing_convnext import ConvNextImageProcessor
21
+
22
+
23
+ logger = logging.get_logger(__name__)
24
+
25
+
26
+ class ConvNextFeatureExtractor(ConvNextImageProcessor):
27
+ def __init__(self, *args, **kwargs) -> None:
28
+ warnings.warn(
29
+ "The class ConvNextFeatureExtractor is deprecated and will be removed in version 5 of Transformers."
30
+ " Please use ConvNextImageProcessor instead.",
31
+ FutureWarning,
32
+ )
33
+ super().__init__(*args, **kwargs)
34
+
35
+
36
+ __all__ = ["ConvNextFeatureExtractor"]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convnext/image_processing_convnext.py ADDED
@@ -0,0 +1,323 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2022 The HuggingFace Inc. team. All rights reserved.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """Image processor class for ConvNeXT."""
16
+
17
+ from typing import Dict, List, Optional, Union
18
+
19
+ import numpy as np
20
+
21
+ from ...image_processing_utils import BaseImageProcessor, BatchFeature, get_size_dict
22
+ from ...image_transforms import (
23
+ center_crop,
24
+ get_resize_output_image_size,
25
+ resize,
26
+ to_channel_dimension_format,
27
+ )
28
+ from ...image_utils import (
29
+ IMAGENET_STANDARD_MEAN,
30
+ IMAGENET_STANDARD_STD,
31
+ ChannelDimension,
32
+ ImageInput,
33
+ PILImageResampling,
34
+ infer_channel_dimension_format,
35
+ is_scaled_image,
36
+ make_list_of_images,
37
+ to_numpy_array,
38
+ valid_images,
39
+ validate_preprocess_arguments,
40
+ )
41
+ from ...utils import TensorType, filter_out_non_signature_kwargs, is_vision_available, logging
42
+
43
+
44
+ if is_vision_available():
45
+ import PIL
46
+
47
+
48
+ logger = logging.get_logger(__name__)
49
+
50
+
51
+ class ConvNextImageProcessor(BaseImageProcessor):
52
+ r"""
53
+ Constructs a ConvNeXT image processor.
54
+
55
+ Args:
56
+ do_resize (`bool`, *optional*, defaults to `True`):
57
+ Controls whether to resize the image's (height, width) dimensions to the specified `size`. Can be overriden
58
+ by `do_resize` in the `preprocess` method.
59
+ size (`Dict[str, int]` *optional*, defaults to `{"shortest_edge": 384}`):
60
+ Resolution of the output image after `resize` is applied. If `size["shortest_edge"]` >= 384, the image is
61
+ resized to `(size["shortest_edge"], size["shortest_edge"])`. Otherwise, the smaller edge of the image will
62
+ be matched to `int(size["shortest_edge"]/crop_pct)`, after which the image is cropped to
63
+ `(size["shortest_edge"], size["shortest_edge"])`. Only has an effect if `do_resize` is set to `True`. Can
64
+ be overriden by `size` in the `preprocess` method.
65
+ crop_pct (`float` *optional*, defaults to 224 / 256):
66
+ Percentage of the image to crop. Only has an effect if `do_resize` is `True` and size < 384. Can be
67
+ overriden by `crop_pct` in the `preprocess` method.
68
+ resample (`PILImageResampling`, *optional*, defaults to `Resampling.BILINEAR`):
69
+ Resampling filter to use if resizing the image. Can be overriden by `resample` in the `preprocess` method.
70
+ do_rescale (`bool`, *optional*, defaults to `True`):
71
+ Whether to rescale the image by the specified scale `rescale_factor`. Can be overriden by `do_rescale` in
72
+ the `preprocess` method.
73
+ rescale_factor (`int` or `float`, *optional*, defaults to `1/255`):
74
+ Scale factor to use if rescaling the image. Can be overriden by `rescale_factor` in the `preprocess`
75
+ method.
76
+ do_normalize (`bool`, *optional*, defaults to `True`):
77
+ Whether to normalize the image. Can be overridden by the `do_normalize` parameter in the `preprocess`
78
+ method.
79
+ image_mean (`float` or `List[float]`, *optional*, defaults to `IMAGENET_STANDARD_MEAN`):
80
+ Mean to use if normalizing the image. This is a float or list of floats the length of the number of
81
+ channels in the image. Can be overridden by the `image_mean` parameter in the `preprocess` method.
82
+ image_std (`float` or `List[float]`, *optional*, defaults to `IMAGENET_STANDARD_STD`):
83
+ Standard deviation to use if normalizing the image. This is a float or list of floats the length of the
84
+ number of channels in the image. Can be overridden by the `image_std` parameter in the `preprocess` method.
85
+ """
86
+
87
+ model_input_names = ["pixel_values"]
88
+
89
+ def __init__(
90
+ self,
91
+ do_resize: bool = True,
92
+ size: Dict[str, int] = None,
93
+ crop_pct: float = None,
94
+ resample: PILImageResampling = PILImageResampling.BILINEAR,
95
+ do_rescale: bool = True,
96
+ rescale_factor: Union[int, float] = 1 / 255,
97
+ do_normalize: bool = True,
98
+ image_mean: Optional[Union[float, List[float]]] = None,
99
+ image_std: Optional[Union[float, List[float]]] = None,
100
+ **kwargs,
101
+ ) -> None:
102
+ super().__init__(**kwargs)
103
+ size = size if size is not None else {"shortest_edge": 384}
104
+ size = get_size_dict(size, default_to_square=False)
105
+
106
+ self.do_resize = do_resize
107
+ self.size = size
108
+ # Default value set here for backwards compatibility where the value in config is None
109
+ self.crop_pct = crop_pct if crop_pct is not None else 224 / 256
110
+ self.resample = resample
111
+ self.do_rescale = do_rescale
112
+ self.rescale_factor = rescale_factor
113
+ self.do_normalize = do_normalize
114
+ self.image_mean = image_mean if image_mean is not None else IMAGENET_STANDARD_MEAN
115
+ self.image_std = image_std if image_std is not None else IMAGENET_STANDARD_STD
116
+
117
+ def resize(
118
+ self,
119
+ image: np.ndarray,
120
+ size: Dict[str, int],
121
+ crop_pct: float,
122
+ resample: PILImageResampling = PILImageResampling.BICUBIC,
123
+ data_format: Optional[Union[str, ChannelDimension]] = None,
124
+ input_data_format: Optional[Union[str, ChannelDimension]] = None,
125
+ **kwargs,
126
+ ) -> np.ndarray:
127
+ """
128
+ Resize an image.
129
+
130
+ Args:
131
+ image (`np.ndarray`):
132
+ Image to resize.
133
+ size (`Dict[str, int]`):
134
+ Dictionary of the form `{"shortest_edge": int}`, specifying the size of the output image. If
135
+ `size["shortest_edge"]` >= 384 image is resized to `(size["shortest_edge"], size["shortest_edge"])`.
136
+ Otherwise, the smaller edge of the image will be matched to `int(size["shortest_edge"] / crop_pct)`,
137
+ after which the image is cropped to `(size["shortest_edge"], size["shortest_edge"])`.
138
+ crop_pct (`float`):
139
+ Percentage of the image to crop. Only has an effect if size < 384.
140
+ resample (`PILImageResampling`, *optional*, defaults to `PILImageResampling.BICUBIC`):
141
+ Resampling filter to use when resizing the image.
142
+ data_format (`str` or `ChannelDimension`, *optional*):
143
+ The channel dimension format of the image. If not provided, it will be the same as the input image.
144
+ input_data_format (`ChannelDimension` or `str`, *optional*):
145
+ The channel dimension format of the input image. If not provided, it will be inferred from the input
146
+ image.
147
+ """
148
+ size = get_size_dict(size, default_to_square=False)
149
+ if "shortest_edge" not in size:
150
+ raise ValueError(f"Size dictionary must contain 'shortest_edge' key. Got {size.keys()}")
151
+ shortest_edge = size["shortest_edge"]
152
+
153
+ if shortest_edge < 384:
154
+ # maintain same ratio, resizing shortest edge to shortest_edge/crop_pct
155
+ resize_shortest_edge = int(shortest_edge / crop_pct)
156
+ resize_size = get_resize_output_image_size(
157
+ image, size=resize_shortest_edge, default_to_square=False, input_data_format=input_data_format
158
+ )
159
+ image = resize(
160
+ image=image,
161
+ size=resize_size,
162
+ resample=resample,
163
+ data_format=data_format,
164
+ input_data_format=input_data_format,
165
+ **kwargs,
166
+ )
167
+ # then crop to (shortest_edge, shortest_edge)
168
+ return center_crop(
169
+ image=image,
170
+ size=(shortest_edge, shortest_edge),
171
+ data_format=data_format,
172
+ input_data_format=input_data_format,
173
+ **kwargs,
174
+ )
175
+ else:
176
+ # warping (no cropping) when evaluated at 384 or larger
177
+ return resize(
178
+ image,
179
+ size=(shortest_edge, shortest_edge),
180
+ resample=resample,
181
+ data_format=data_format,
182
+ input_data_format=input_data_format,
183
+ **kwargs,
184
+ )
185
+
186
+ @filter_out_non_signature_kwargs()
187
+ def preprocess(
188
+ self,
189
+ images: ImageInput,
190
+ do_resize: bool = None,
191
+ size: Dict[str, int] = None,
192
+ crop_pct: float = None,
193
+ resample: PILImageResampling = None,
194
+ do_rescale: bool = None,
195
+ rescale_factor: float = None,
196
+ do_normalize: bool = None,
197
+ image_mean: Optional[Union[float, List[float]]] = None,
198
+ image_std: Optional[Union[float, List[float]]] = None,
199
+ return_tensors: Optional[Union[str, TensorType]] = None,
200
+ data_format: ChannelDimension = ChannelDimension.FIRST,
201
+ input_data_format: Optional[Union[str, ChannelDimension]] = None,
202
+ ) -> PIL.Image.Image:
203
+ """
204
+ Preprocess an image or batch of images.
205
+
206
+ Args:
207
+ images (`ImageInput`):
208
+ Image to preprocess. Expects a single or batch of images with pixel values ranging from 0 to 255. If
209
+ passing in images with pixel values between 0 and 1, set `do_rescale=False`.
210
+ do_resize (`bool`, *optional*, defaults to `self.do_resize`):
211
+ Whether to resize the image.
212
+ size (`Dict[str, int]`, *optional*, defaults to `self.size`):
213
+ Size of the output image after `resize` has been applied. If `size["shortest_edge"]` >= 384, the image
214
+ is resized to `(size["shortest_edge"], size["shortest_edge"])`. Otherwise, the smaller edge of the
215
+ image will be matched to `int(size["shortest_edge"]/ crop_pct)`, after which the image is cropped to
216
+ `(size["shortest_edge"], size["shortest_edge"])`. Only has an effect if `do_resize` is set to `True`.
217
+ crop_pct (`float`, *optional*, defaults to `self.crop_pct`):
218
+ Percentage of the image to crop if size < 384.
219
+ resample (`int`, *optional*, defaults to `self.resample`):
220
+ Resampling filter to use if resizing the image. This can be one of `PILImageResampling`, filters. Only
221
+ has an effect if `do_resize` is set to `True`.
222
+ do_rescale (`bool`, *optional*, defaults to `self.do_rescale`):
223
+ Whether to rescale the image values between [0 - 1].
224
+ rescale_factor (`float`, *optional*, defaults to `self.rescale_factor`):
225
+ Rescale factor to rescale the image by if `do_rescale` is set to `True`.
226
+ do_normalize (`bool`, *optional*, defaults to `self.do_normalize`):
227
+ Whether to normalize the image.
228
+ image_mean (`float` or `List[float]`, *optional*, defaults to `self.image_mean`):
229
+ Image mean.
230
+ image_std (`float` or `List[float]`, *optional*, defaults to `self.image_std`):
231
+ Image standard deviation.
232
+ return_tensors (`str` or `TensorType`, *optional*):
233
+ The type of tensors to return. Can be one of:
234
+ - Unset: Return a list of `np.ndarray`.
235
+ - `TensorType.TENSORFLOW` or `'tf'`: Return a batch of type `tf.Tensor`.
236
+ - `TensorType.PYTORCH` or `'pt'`: Return a batch of type `torch.Tensor`.
237
+ - `TensorType.NUMPY` or `'np'`: Return a batch of type `np.ndarray`.
238
+ - `TensorType.JAX` or `'jax'`: Return a batch of type `jax.numpy.ndarray`.
239
+ data_format (`ChannelDimension` or `str`, *optional*, defaults to `ChannelDimension.FIRST`):
240
+ The channel dimension format for the output image. Can be one of:
241
+ - `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format.
242
+ - `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format.
243
+ - Unset: Use the channel dimension format of the input image.
244
+ input_data_format (`ChannelDimension` or `str`, *optional*):
245
+ The channel dimension format for the input image. If unset, the channel dimension format is inferred
246
+ from the input image. Can be one of:
247
+ - `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format.
248
+ - `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format.
249
+ - `"none"` or `ChannelDimension.NONE`: image in (height, width) format.
250
+ """
251
+ do_resize = do_resize if do_resize is not None else self.do_resize
252
+ crop_pct = crop_pct if crop_pct is not None else self.crop_pct
253
+ resample = resample if resample is not None else self.resample
254
+ do_rescale = do_rescale if do_rescale is not None else self.do_rescale
255
+ rescale_factor = rescale_factor if rescale_factor is not None else self.rescale_factor
256
+ do_normalize = do_normalize if do_normalize is not None else self.do_normalize
257
+ image_mean = image_mean if image_mean is not None else self.image_mean
258
+ image_std = image_std if image_std is not None else self.image_std
259
+
260
+ size = size if size is not None else self.size
261
+ size = get_size_dict(size, default_to_square=False)
262
+
263
+ images = make_list_of_images(images)
264
+
265
+ if not valid_images(images):
266
+ raise ValueError(
267
+ "Invalid image type. Must be of type PIL.Image.Image, numpy.ndarray, "
268
+ "torch.Tensor, tf.Tensor or jax.ndarray."
269
+ )
270
+
271
+ validate_preprocess_arguments(
272
+ do_rescale=do_rescale,
273
+ rescale_factor=rescale_factor,
274
+ do_normalize=do_normalize,
275
+ image_mean=image_mean,
276
+ image_std=image_std,
277
+ do_resize=do_resize,
278
+ size=size,
279
+ resample=resample,
280
+ )
281
+
282
+ # All transformations expect numpy arrays.
283
+ images = [to_numpy_array(image) for image in images]
284
+
285
+ if do_rescale and is_scaled_image(images[0]):
286
+ logger.warning_once(
287
+ "It looks like you are trying to rescale already rescaled images. If the input"
288
+ " images have pixel values between 0 and 1, set `do_rescale=False` to avoid rescaling them again."
289
+ )
290
+
291
+ if input_data_format is None:
292
+ # We assume that all images have the same channel dimension format.
293
+ input_data_format = infer_channel_dimension_format(images[0])
294
+
295
+ if do_resize:
296
+ images = [
297
+ self.resize(
298
+ image=image, size=size, crop_pct=crop_pct, resample=resample, input_data_format=input_data_format
299
+ )
300
+ for image in images
301
+ ]
302
+
303
+ if do_rescale:
304
+ images = [
305
+ self.rescale(image=image, scale=rescale_factor, input_data_format=input_data_format)
306
+ for image in images
307
+ ]
308
+
309
+ if do_normalize:
310
+ images = [
311
+ self.normalize(image=image, mean=image_mean, std=image_std, input_data_format=input_data_format)
312
+ for image in images
313
+ ]
314
+
315
+ images = [
316
+ to_channel_dimension_format(image, data_format, input_channel_dim=input_data_format) for image in images
317
+ ]
318
+
319
+ data = {"pixel_values": images}
320
+ return BatchFeature(data=data, tensor_type=return_tensors)
321
+
322
+
323
+ __all__ = ["ConvNextImageProcessor"]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convnext/image_processing_convnext_fast.py ADDED
@@ -0,0 +1,199 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2024 The HuggingFace Inc. team. All rights reserved.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """Fast Image processor class for ConvNeXT."""
16
+
17
+ from typing import Dict, List, Optional, Union
18
+
19
+ from ...image_processing_utils import BatchFeature
20
+ from ...image_processing_utils_fast import (
21
+ BASE_IMAGE_PROCESSOR_FAST_DOCSTRING,
22
+ BASE_IMAGE_PROCESSOR_FAST_DOCSTRING_PREPROCESS,
23
+ BaseImageProcessorFast,
24
+ DefaultFastImageProcessorKwargs,
25
+ group_images_by_shape,
26
+ reorder_images,
27
+ )
28
+ from ...image_transforms import get_resize_output_image_size
29
+ from ...image_utils import (
30
+ IMAGENET_STANDARD_MEAN,
31
+ IMAGENET_STANDARD_STD,
32
+ ChannelDimension,
33
+ ImageInput,
34
+ PILImageResampling,
35
+ )
36
+ from ...processing_utils import Unpack
37
+ from ...utils import (
38
+ TensorType,
39
+ add_start_docstrings,
40
+ is_torch_available,
41
+ is_torchvision_available,
42
+ is_torchvision_v2_available,
43
+ )
44
+
45
+
46
+ if is_torch_available():
47
+ import torch
48
+
49
+ if is_torchvision_available():
50
+ if is_torchvision_v2_available():
51
+ from torchvision.transforms.v2 import functional as F
52
+ else:
53
+ from torchvision.transforms import functional as F
54
+
55
+
56
+ class ConvNextFastImageProcessorKwargs(DefaultFastImageProcessorKwargs):
57
+ crop_pct: Optional[float]
58
+
59
+
60
+ @add_start_docstrings(
61
+ r"Constructs a fast ConvNeXT image processor.",
62
+ BASE_IMAGE_PROCESSOR_FAST_DOCSTRING,
63
+ """
64
+ crop_pct (`float`, *optional*):
65
+ Percentage of the image to crop. Only has an effect if size < 384. Can be
66
+ overridden by `crop_pct` in the`preprocess` method.
67
+ """,
68
+ )
69
+ class ConvNextImageProcessorFast(BaseImageProcessorFast):
70
+ resample = PILImageResampling.BILINEAR
71
+ image_mean = IMAGENET_STANDARD_MEAN
72
+ image_std = IMAGENET_STANDARD_STD
73
+ size = {"shortest_edge": 384}
74
+ default_to_square = False
75
+ do_resize = True
76
+ do_rescale = True
77
+ do_normalize = True
78
+ crop_pct = 224 / 256
79
+ valid_kwargs = ConvNextFastImageProcessorKwargs
80
+
81
+ def __init__(self, **kwargs: Unpack[ConvNextFastImageProcessorKwargs]):
82
+ super().__init__(**kwargs)
83
+
84
+ @add_start_docstrings(
85
+ BASE_IMAGE_PROCESSOR_FAST_DOCSTRING_PREPROCESS,
86
+ """
87
+ crop_pct (`float`, *optional*):
88
+ Percentage of the image to crop. Only has an effect if size < 384. Can be
89
+ overridden by `crop_pct` in the`preprocess` method.
90
+ """,
91
+ )
92
+ def preprocess(self, images: ImageInput, **kwargs: Unpack[ConvNextFastImageProcessorKwargs]) -> BatchFeature:
93
+ return super().preprocess(images, **kwargs)
94
+
95
+ def resize(
96
+ self,
97
+ image: "torch.Tensor",
98
+ size: Dict[str, int],
99
+ crop_pct: float,
100
+ interpolation: PILImageResampling = PILImageResampling.BICUBIC,
101
+ **kwargs,
102
+ ) -> "torch.Tensor":
103
+ """
104
+ Resize an image.
105
+
106
+ Args:
107
+ image (`torch.Tensor`):
108
+ Image to resize.
109
+ size (`Dict[str, int]`):
110
+ Dictionary of the form `{"shortest_edge": int}`, specifying the size of the output image. If
111
+ `size["shortest_edge"]` >= 384 image is resized to `(size["shortest_edge"], size["shortest_edge"])`.
112
+ Otherwise, the smaller edge of the image will be matched to `int(size["shortest_edge"] / crop_pct)`,
113
+ after which the image is cropped to `(size["shortest_edge"], size["shortest_edge"])`.
114
+ crop_pct (`float`):
115
+ Percentage of the image to crop. Only has an effect if size < 384.
116
+ resample (`PILImageResampling`, *optional*, defaults to `PILImageResampling.BICUBIC`):
117
+ Resampling filter to use when resizing the image.
118
+
119
+ Returns:
120
+ `torch.Tensor`: Resized image.
121
+ """
122
+ if not size.shortest_edge:
123
+ raise ValueError(f"Size dictionary must contain 'shortest_edge' key. Got {size.keys()}")
124
+ shortest_edge = size["shortest_edge"]
125
+
126
+ if shortest_edge < 384:
127
+ # maintain same ratio, resizing shortest edge to shortest_edge/crop_pct
128
+ resize_shortest_edge = int(shortest_edge / crop_pct)
129
+ resize_size = get_resize_output_image_size(
130
+ image, size=resize_shortest_edge, default_to_square=False, input_data_format=ChannelDimension.FIRST
131
+ )
132
+ image = F.resize(
133
+ image,
134
+ resize_size,
135
+ interpolation=interpolation,
136
+ **kwargs,
137
+ )
138
+ # then crop to (shortest_edge, shortest_edge)
139
+ return F.center_crop(
140
+ image,
141
+ (shortest_edge, shortest_edge),
142
+ **kwargs,
143
+ )
144
+ else:
145
+ # warping (no cropping) when evaluated at 384 or larger
146
+ return F.resize(
147
+ image,
148
+ (shortest_edge, shortest_edge),
149
+ interpolation=interpolation,
150
+ **kwargs,
151
+ )
152
+
153
+ def _preprocess(
154
+ self,
155
+ images: List["torch.Tensor"],
156
+ do_resize: bool,
157
+ size: Dict[str, int],
158
+ crop_pct: float,
159
+ interpolation: Optional["F.InterpolationMode"],
160
+ do_center_crop: bool,
161
+ crop_size: int,
162
+ do_rescale: bool,
163
+ rescale_factor: float,
164
+ do_normalize: bool,
165
+ image_mean: Optional[Union[float, List[float]]],
166
+ image_std: Optional[Union[float, List[float]]],
167
+ return_tensors: Optional[Union[str, TensorType]],
168
+ ) -> BatchFeature:
169
+ # Group images by size for batched resizing
170
+ grouped_images, grouped_images_index = group_images_by_shape(images)
171
+ resized_images_grouped = {}
172
+ for shape, stacked_images in grouped_images.items():
173
+ if do_resize:
174
+ stacked_images = self.resize(
175
+ image=stacked_images, size=size, crop_pct=crop_pct, interpolation=interpolation
176
+ )
177
+ resized_images_grouped[shape] = stacked_images
178
+ resized_images = reorder_images(resized_images_grouped, grouped_images_index)
179
+
180
+ # Group images by size for further processing
181
+ # Needed in case do_resize is False, or resize returns images with different sizes
182
+ grouped_images, grouped_images_index = group_images_by_shape(resized_images)
183
+ processed_images_grouped = {}
184
+ for shape, stacked_images in grouped_images.items():
185
+ if do_center_crop:
186
+ stacked_images = self.center_crop(stacked_images, crop_size)
187
+ # Fused rescale and normalize
188
+ stacked_images = self.rescale_and_normalize(
189
+ stacked_images, do_rescale, rescale_factor, do_normalize, image_mean, image_std
190
+ )
191
+ processed_images_grouped[shape] = stacked_images
192
+
193
+ processed_images = reorder_images(processed_images_grouped, grouped_images_index)
194
+ processed_images = torch.stack(processed_images, dim=0) if return_tensors else processed_images
195
+
196
+ return BatchFeature(data={"pixel_values": processed_images}, tensor_type=return_tensors)
197
+
198
+
199
+ __all__ = ["ConvNextImageProcessorFast"]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convnext/modeling_convnext.py ADDED
@@ -0,0 +1,551 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2022 Meta Platforms, Inc. and The HuggingFace Inc. team. All rights reserved.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """PyTorch ConvNext model."""
16
+
17
+ from typing import Optional, Tuple, Union
18
+
19
+ import torch
20
+ import torch.utils.checkpoint
21
+ from torch import nn
22
+ from torch.nn import BCEWithLogitsLoss, CrossEntropyLoss, MSELoss
23
+
24
+ from ...activations import ACT2FN
25
+ from ...modeling_outputs import (
26
+ BackboneOutput,
27
+ BaseModelOutputWithNoAttention,
28
+ BaseModelOutputWithPoolingAndNoAttention,
29
+ ImageClassifierOutputWithNoAttention,
30
+ )
31
+ from ...modeling_utils import PreTrainedModel
32
+ from ...utils import (
33
+ add_code_sample_docstrings,
34
+ add_start_docstrings,
35
+ add_start_docstrings_to_model_forward,
36
+ logging,
37
+ replace_return_docstrings,
38
+ )
39
+ from ...utils.backbone_utils import BackboneMixin
40
+ from .configuration_convnext import ConvNextConfig
41
+
42
+
43
+ logger = logging.get_logger(__name__)
44
+
45
+ # General docstring
46
+ _CONFIG_FOR_DOC = "ConvNextConfig"
47
+
48
+ # Base docstring
49
+ _CHECKPOINT_FOR_DOC = "facebook/convnext-tiny-224"
50
+ _EXPECTED_OUTPUT_SHAPE = [1, 768, 7, 7]
51
+
52
+ # Image classification docstring
53
+ _IMAGE_CLASS_CHECKPOINT = "facebook/convnext-tiny-224"
54
+ _IMAGE_CLASS_EXPECTED_OUTPUT = "tabby, tabby cat"
55
+
56
+
57
+ # Copied from transformers.models.beit.modeling_beit.drop_path
58
+ def drop_path(input: torch.Tensor, drop_prob: float = 0.0, training: bool = False) -> torch.Tensor:
59
+ """
60
+ Drop paths (Stochastic Depth) per sample (when applied in main path of residual blocks).
61
+
62
+ Comment by Ross Wightman: This is the same as the DropConnect impl I created for EfficientNet, etc networks,
63
+ however, the original name is misleading as 'Drop Connect' is a different form of dropout in a separate paper...
64
+ See discussion: https://github.com/tensorflow/tpu/issues/494#issuecomment-532968956 ... I've opted for changing the
65
+ layer and argument names to 'drop path' rather than mix DropConnect as a layer name and use 'survival rate' as the
66
+ argument.
67
+ """
68
+ if drop_prob == 0.0 or not training:
69
+ return input
70
+ keep_prob = 1 - drop_prob
71
+ shape = (input.shape[0],) + (1,) * (input.ndim - 1) # work with diff dim tensors, not just 2D ConvNets
72
+ random_tensor = keep_prob + torch.rand(shape, dtype=input.dtype, device=input.device)
73
+ random_tensor.floor_() # binarize
74
+ output = input.div(keep_prob) * random_tensor
75
+ return output
76
+
77
+
78
+ # Copied from transformers.models.beit.modeling_beit.BeitDropPath with Beit->ConvNext
79
+ class ConvNextDropPath(nn.Module):
80
+ """Drop paths (Stochastic Depth) per sample (when applied in main path of residual blocks)."""
81
+
82
+ def __init__(self, drop_prob: Optional[float] = None) -> None:
83
+ super().__init__()
84
+ self.drop_prob = drop_prob
85
+
86
+ def forward(self, hidden_states: torch.Tensor) -> torch.Tensor:
87
+ return drop_path(hidden_states, self.drop_prob, self.training)
88
+
89
+ def extra_repr(self) -> str:
90
+ return "p={}".format(self.drop_prob)
91
+
92
+
93
+ class ConvNextLayerNorm(nn.Module):
94
+ r"""LayerNorm that supports two data formats: channels_last (default) or channels_first.
95
+ The ordering of the dimensions in the inputs. channels_last corresponds to inputs with shape (batch_size, height,
96
+ width, channels) while channels_first corresponds to inputs with shape (batch_size, channels, height, width).
97
+ """
98
+
99
+ def __init__(self, normalized_shape, eps=1e-6, data_format="channels_last"):
100
+ super().__init__()
101
+ self.weight = nn.Parameter(torch.ones(normalized_shape))
102
+ self.bias = nn.Parameter(torch.zeros(normalized_shape))
103
+ self.eps = eps
104
+ self.data_format = data_format
105
+ if self.data_format not in ["channels_last", "channels_first"]:
106
+ raise NotImplementedError(f"Unsupported data format: {self.data_format}")
107
+ self.normalized_shape = (normalized_shape,)
108
+
109
+ def forward(self, x: torch.Tensor) -> torch.Tensor:
110
+ if self.data_format == "channels_last":
111
+ x = torch.nn.functional.layer_norm(x, self.normalized_shape, self.weight, self.bias, self.eps)
112
+ elif self.data_format == "channels_first":
113
+ input_dtype = x.dtype
114
+ x = x.float()
115
+ u = x.mean(1, keepdim=True)
116
+ s = (x - u).pow(2).mean(1, keepdim=True)
117
+ x = (x - u) / torch.sqrt(s + self.eps)
118
+ x = x.to(dtype=input_dtype)
119
+ x = self.weight[:, None, None] * x + self.bias[:, None, None]
120
+ return x
121
+
122
+
123
+ class ConvNextEmbeddings(nn.Module):
124
+ """This class is comparable to (and inspired by) the SwinEmbeddings class
125
+ found in src/transformers/models/swin/modeling_swin.py.
126
+ """
127
+
128
+ def __init__(self, config):
129
+ super().__init__()
130
+ self.patch_embeddings = nn.Conv2d(
131
+ config.num_channels, config.hidden_sizes[0], kernel_size=config.patch_size, stride=config.patch_size
132
+ )
133
+ self.layernorm = ConvNextLayerNorm(config.hidden_sizes[0], eps=1e-6, data_format="channels_first")
134
+ self.num_channels = config.num_channels
135
+
136
+ def forward(self, pixel_values: torch.FloatTensor) -> torch.Tensor:
137
+ num_channels = pixel_values.shape[1]
138
+ if num_channels != self.num_channels:
139
+ raise ValueError(
140
+ "Make sure that the channel dimension of the pixel values match with the one set in the configuration."
141
+ )
142
+ embeddings = self.patch_embeddings(pixel_values)
143
+ embeddings = self.layernorm(embeddings)
144
+ return embeddings
145
+
146
+
147
+ class ConvNextLayer(nn.Module):
148
+ """This corresponds to the `Block` class in the original implementation.
149
+
150
+ There are two equivalent implementations: [DwConv, LayerNorm (channels_first), Conv, GELU,1x1 Conv]; all in (N, C,
151
+ H, W) (2) [DwConv, Permute to (N, H, W, C), LayerNorm (channels_last), Linear, GELU, Linear]; Permute back
152
+
153
+ The authors used (2) as they find it slightly faster in PyTorch.
154
+
155
+ Args:
156
+ config ([`ConvNextConfig`]): Model configuration class.
157
+ dim (`int`): Number of input channels.
158
+ drop_path (`float`): Stochastic depth rate. Default: 0.0.
159
+ """
160
+
161
+ def __init__(self, config, dim, drop_path=0):
162
+ super().__init__()
163
+ self.dwconv = nn.Conv2d(dim, dim, kernel_size=7, padding=3, groups=dim) # depthwise conv
164
+ self.layernorm = ConvNextLayerNorm(dim, eps=1e-6)
165
+ self.pwconv1 = nn.Linear(dim, 4 * dim) # pointwise/1x1 convs, implemented with linear layers
166
+ self.act = ACT2FN[config.hidden_act]
167
+ self.pwconv2 = nn.Linear(4 * dim, dim)
168
+ self.layer_scale_parameter = (
169
+ nn.Parameter(config.layer_scale_init_value * torch.ones((dim)), requires_grad=True)
170
+ if config.layer_scale_init_value > 0
171
+ else None
172
+ )
173
+ self.drop_path = ConvNextDropPath(drop_path) if drop_path > 0.0 else nn.Identity()
174
+
175
+ def forward(self, hidden_states: torch.FloatTensor) -> torch.Tensor:
176
+ input = hidden_states
177
+ x = self.dwconv(hidden_states)
178
+ x = x.permute(0, 2, 3, 1) # (N, C, H, W) -> (N, H, W, C)
179
+ x = self.layernorm(x)
180
+ x = self.pwconv1(x)
181
+ x = self.act(x)
182
+ x = self.pwconv2(x)
183
+ if self.layer_scale_parameter is not None:
184
+ x = self.layer_scale_parameter * x
185
+ x = x.permute(0, 3, 1, 2) # (N, H, W, C) -> (N, C, H, W)
186
+
187
+ x = input + self.drop_path(x)
188
+ return x
189
+
190
+
191
+ class ConvNextStage(nn.Module):
192
+ """ConvNeXT stage, consisting of an optional downsampling layer + multiple residual blocks.
193
+
194
+ Args:
195
+ config ([`ConvNextConfig`]): Model configuration class.
196
+ in_channels (`int`): Number of input channels.
197
+ out_channels (`int`): Number of output channels.
198
+ depth (`int`): Number of residual blocks.
199
+ drop_path_rates(`List[float]`): Stochastic depth rates for each layer.
200
+ """
201
+
202
+ def __init__(self, config, in_channels, out_channels, kernel_size=2, stride=2, depth=2, drop_path_rates=None):
203
+ super().__init__()
204
+
205
+ if in_channels != out_channels or stride > 1:
206
+ self.downsampling_layer = nn.Sequential(
207
+ ConvNextLayerNorm(in_channels, eps=1e-6, data_format="channels_first"),
208
+ nn.Conv2d(in_channels, out_channels, kernel_size=kernel_size, stride=stride),
209
+ )
210
+ else:
211
+ self.downsampling_layer = nn.Identity()
212
+ drop_path_rates = drop_path_rates or [0.0] * depth
213
+ self.layers = nn.Sequential(
214
+ *[ConvNextLayer(config, dim=out_channels, drop_path=drop_path_rates[j]) for j in range(depth)]
215
+ )
216
+
217
+ def forward(self, hidden_states: torch.FloatTensor) -> torch.Tensor:
218
+ hidden_states = self.downsampling_layer(hidden_states)
219
+ hidden_states = self.layers(hidden_states)
220
+ return hidden_states
221
+
222
+
223
+ class ConvNextEncoder(nn.Module):
224
+ def __init__(self, config):
225
+ super().__init__()
226
+ self.stages = nn.ModuleList()
227
+ drop_path_rates = [
228
+ x.tolist() for x in torch.linspace(0, config.drop_path_rate, sum(config.depths)).split(config.depths)
229
+ ]
230
+ prev_chs = config.hidden_sizes[0]
231
+ for i in range(config.num_stages):
232
+ out_chs = config.hidden_sizes[i]
233
+ stage = ConvNextStage(
234
+ config,
235
+ in_channels=prev_chs,
236
+ out_channels=out_chs,
237
+ stride=2 if i > 0 else 1,
238
+ depth=config.depths[i],
239
+ drop_path_rates=drop_path_rates[i],
240
+ )
241
+ self.stages.append(stage)
242
+ prev_chs = out_chs
243
+
244
+ def forward(
245
+ self,
246
+ hidden_states: torch.FloatTensor,
247
+ output_hidden_states: Optional[bool] = False,
248
+ return_dict: Optional[bool] = True,
249
+ ) -> Union[Tuple, BaseModelOutputWithNoAttention]:
250
+ all_hidden_states = () if output_hidden_states else None
251
+
252
+ for i, layer_module in enumerate(self.stages):
253
+ if output_hidden_states:
254
+ all_hidden_states = all_hidden_states + (hidden_states,)
255
+
256
+ hidden_states = layer_module(hidden_states)
257
+
258
+ if output_hidden_states:
259
+ all_hidden_states = all_hidden_states + (hidden_states,)
260
+
261
+ if not return_dict:
262
+ return tuple(v for v in [hidden_states, all_hidden_states] if v is not None)
263
+
264
+ return BaseModelOutputWithNoAttention(
265
+ last_hidden_state=hidden_states,
266
+ hidden_states=all_hidden_states,
267
+ )
268
+
269
+
270
+ class ConvNextPreTrainedModel(PreTrainedModel):
271
+ """
272
+ An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained
273
+ models.
274
+ """
275
+
276
+ config_class = ConvNextConfig
277
+ base_model_prefix = "convnext"
278
+ main_input_name = "pixel_values"
279
+ _no_split_modules = ["ConvNextLayer"]
280
+
281
+ def _init_weights(self, module):
282
+ """Initialize the weights"""
283
+ if isinstance(module, (nn.Linear, nn.Conv2d)):
284
+ # Slightly different from the TF version which uses truncated_normal for initialization
285
+ # cf https://github.com/pytorch/pytorch/pull/5617
286
+ module.weight.data.normal_(mean=0.0, std=self.config.initializer_range)
287
+ if module.bias is not None:
288
+ module.bias.data.zero_()
289
+ elif isinstance(module, nn.LayerNorm):
290
+ module.bias.data.zero_()
291
+ module.weight.data.fill_(1.0)
292
+
293
+
294
+ CONVNEXT_START_DOCSTRING = r"""
295
+ This model is a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass. Use it
296
+ as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage and
297
+ behavior.
298
+
299
+ Parameters:
300
+ config ([`ConvNextConfig`]): Model configuration class with all the parameters of the model.
301
+ Initializing with a config file does not load the weights associated with the model, only the
302
+ configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights.
303
+ """
304
+
305
+ CONVNEXT_INPUTS_DOCSTRING = r"""
306
+ Args:
307
+ pixel_values (`torch.FloatTensor` of shape `(batch_size, num_channels, height, width)`):
308
+ Pixel values. Pixel values can be obtained using [`AutoImageProcessor`]. See
309
+ [`ConvNextImageProcessor.__call__`] for details.
310
+
311
+ output_hidden_states (`bool`, *optional*):
312
+ Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
313
+ more detail.
314
+ return_dict (`bool`, *optional*):
315
+ Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
316
+ """
317
+
318
+
319
+ @add_start_docstrings(
320
+ "The bare ConvNext model outputting raw features without any specific head on top.",
321
+ CONVNEXT_START_DOCSTRING,
322
+ )
323
+ class ConvNextModel(ConvNextPreTrainedModel):
324
+ def __init__(self, config):
325
+ super().__init__(config)
326
+ self.config = config
327
+
328
+ self.embeddings = ConvNextEmbeddings(config)
329
+ self.encoder = ConvNextEncoder(config)
330
+
331
+ # final layernorm layer
332
+ self.layernorm = nn.LayerNorm(config.hidden_sizes[-1], eps=config.layer_norm_eps)
333
+
334
+ # Initialize weights and apply final processing
335
+ self.post_init()
336
+
337
+ @add_start_docstrings_to_model_forward(CONVNEXT_INPUTS_DOCSTRING)
338
+ @add_code_sample_docstrings(
339
+ checkpoint=_CHECKPOINT_FOR_DOC,
340
+ output_type=BaseModelOutputWithPoolingAndNoAttention,
341
+ config_class=_CONFIG_FOR_DOC,
342
+ modality="vision",
343
+ expected_output=_EXPECTED_OUTPUT_SHAPE,
344
+ )
345
+ def forward(
346
+ self,
347
+ pixel_values: torch.FloatTensor = None,
348
+ output_hidden_states: Optional[bool] = None,
349
+ return_dict: Optional[bool] = None,
350
+ ) -> Union[Tuple, BaseModelOutputWithPoolingAndNoAttention]:
351
+ output_hidden_states = (
352
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
353
+ )
354
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
355
+
356
+ if pixel_values is None:
357
+ raise ValueError("You have to specify pixel_values")
358
+
359
+ embedding_output = self.embeddings(pixel_values)
360
+
361
+ encoder_outputs = self.encoder(
362
+ embedding_output,
363
+ output_hidden_states=output_hidden_states,
364
+ return_dict=return_dict,
365
+ )
366
+
367
+ last_hidden_state = encoder_outputs[0]
368
+
369
+ # global average pooling, (N, C, H, W) -> (N, C)
370
+ pooled_output = self.layernorm(last_hidden_state.mean([-2, -1]))
371
+
372
+ if not return_dict:
373
+ return (last_hidden_state, pooled_output) + encoder_outputs[1:]
374
+
375
+ return BaseModelOutputWithPoolingAndNoAttention(
376
+ last_hidden_state=last_hidden_state,
377
+ pooler_output=pooled_output,
378
+ hidden_states=encoder_outputs.hidden_states,
379
+ )
380
+
381
+
382
+ @add_start_docstrings(
383
+ """
384
+ ConvNext Model with an image classification head on top (a linear layer on top of the pooled features), e.g. for
385
+ ImageNet.
386
+ """,
387
+ CONVNEXT_START_DOCSTRING,
388
+ )
389
+ class ConvNextForImageClassification(ConvNextPreTrainedModel):
390
+ def __init__(self, config):
391
+ super().__init__(config)
392
+
393
+ self.num_labels = config.num_labels
394
+ self.convnext = ConvNextModel(config)
395
+
396
+ # Classifier head
397
+ self.classifier = (
398
+ nn.Linear(config.hidden_sizes[-1], config.num_labels) if config.num_labels > 0 else nn.Identity()
399
+ )
400
+
401
+ # Initialize weights and apply final processing
402
+ self.post_init()
403
+
404
+ @add_start_docstrings_to_model_forward(CONVNEXT_INPUTS_DOCSTRING)
405
+ @add_code_sample_docstrings(
406
+ checkpoint=_IMAGE_CLASS_CHECKPOINT,
407
+ output_type=ImageClassifierOutputWithNoAttention,
408
+ config_class=_CONFIG_FOR_DOC,
409
+ expected_output=_IMAGE_CLASS_EXPECTED_OUTPUT,
410
+ )
411
+ def forward(
412
+ self,
413
+ pixel_values: torch.FloatTensor = None,
414
+ labels: Optional[torch.LongTensor] = None,
415
+ output_hidden_states: Optional[bool] = None,
416
+ return_dict: Optional[bool] = None,
417
+ ) -> Union[Tuple, ImageClassifierOutputWithNoAttention]:
418
+ r"""
419
+ labels (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
420
+ Labels for computing the image classification/regression loss. Indices should be in `[0, ...,
421
+ config.num_labels - 1]`. If `config.num_labels == 1` a regression loss is computed (Mean-Square loss), If
422
+ `config.num_labels > 1` a classification loss is computed (Cross-Entropy).
423
+ """
424
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
425
+
426
+ outputs = self.convnext(pixel_values, output_hidden_states=output_hidden_states, return_dict=return_dict)
427
+
428
+ pooled_output = outputs.pooler_output if return_dict else outputs[1]
429
+
430
+ logits = self.classifier(pooled_output)
431
+
432
+ loss = None
433
+ if labels is not None:
434
+ if self.config.problem_type is None:
435
+ if self.num_labels == 1:
436
+ self.config.problem_type = "regression"
437
+ elif self.num_labels > 1 and (labels.dtype == torch.long or labels.dtype == torch.int):
438
+ self.config.problem_type = "single_label_classification"
439
+ else:
440
+ self.config.problem_type = "multi_label_classification"
441
+
442
+ if self.config.problem_type == "regression":
443
+ loss_fct = MSELoss()
444
+ if self.num_labels == 1:
445
+ loss = loss_fct(logits.squeeze(), labels.squeeze())
446
+ else:
447
+ loss = loss_fct(logits, labels)
448
+ elif self.config.problem_type == "single_label_classification":
449
+ loss_fct = CrossEntropyLoss()
450
+ loss = loss_fct(logits.view(-1, self.num_labels), labels.view(-1))
451
+ elif self.config.problem_type == "multi_label_classification":
452
+ loss_fct = BCEWithLogitsLoss()
453
+ loss = loss_fct(logits, labels)
454
+ if not return_dict:
455
+ output = (logits,) + outputs[2:]
456
+ return ((loss,) + output) if loss is not None else output
457
+
458
+ return ImageClassifierOutputWithNoAttention(
459
+ loss=loss,
460
+ logits=logits,
461
+ hidden_states=outputs.hidden_states,
462
+ )
463
+
464
+
465
+ @add_start_docstrings(
466
+ """
467
+ ConvNeXt backbone, to be used with frameworks like DETR and MaskFormer.
468
+ """,
469
+ CONVNEXT_START_DOCSTRING,
470
+ )
471
+ class ConvNextBackbone(ConvNextPreTrainedModel, BackboneMixin):
472
+ def __init__(self, config):
473
+ super().__init__(config)
474
+ super()._init_backbone(config)
475
+
476
+ self.embeddings = ConvNextEmbeddings(config)
477
+ self.encoder = ConvNextEncoder(config)
478
+ self.num_features = [config.hidden_sizes[0]] + config.hidden_sizes
479
+
480
+ # Add layer norms to hidden states of out_features
481
+ hidden_states_norms = {}
482
+ for stage, num_channels in zip(self._out_features, self.channels):
483
+ hidden_states_norms[stage] = ConvNextLayerNorm(num_channels, data_format="channels_first")
484
+ self.hidden_states_norms = nn.ModuleDict(hidden_states_norms)
485
+
486
+ # initialize weights and apply final processing
487
+ self.post_init()
488
+
489
+ @add_start_docstrings_to_model_forward(CONVNEXT_INPUTS_DOCSTRING)
490
+ @replace_return_docstrings(output_type=BackboneOutput, config_class=_CONFIG_FOR_DOC)
491
+ def forward(
492
+ self,
493
+ pixel_values: torch.Tensor,
494
+ output_hidden_states: Optional[bool] = None,
495
+ return_dict: Optional[bool] = None,
496
+ ) -> BackboneOutput:
497
+ """
498
+ Returns:
499
+
500
+ Examples:
501
+
502
+ ```python
503
+ >>> from transformers import AutoImageProcessor, AutoBackbone
504
+ >>> import torch
505
+ >>> from PIL import Image
506
+ >>> import requests
507
+
508
+ >>> url = "http://images.cocodataset.org/val2017/000000039769.jpg"
509
+ >>> image = Image.open(requests.get(url, stream=True).raw)
510
+
511
+ >>> processor = AutoImageProcessor.from_pretrained("facebook/convnext-tiny-224")
512
+ >>> model = AutoBackbone.from_pretrained("facebook/convnext-tiny-224")
513
+
514
+ >>> inputs = processor(image, return_tensors="pt")
515
+ >>> outputs = model(**inputs)
516
+ ```"""
517
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
518
+ output_hidden_states = (
519
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
520
+ )
521
+
522
+ embedding_output = self.embeddings(pixel_values)
523
+
524
+ outputs = self.encoder(
525
+ embedding_output,
526
+ output_hidden_states=True,
527
+ return_dict=return_dict,
528
+ )
529
+
530
+ hidden_states = outputs.hidden_states if return_dict else outputs[1]
531
+
532
+ feature_maps = ()
533
+ for stage, hidden_state in zip(self.stage_names, hidden_states):
534
+ if stage in self.out_features:
535
+ hidden_state = self.hidden_states_norms[stage](hidden_state)
536
+ feature_maps += (hidden_state,)
537
+
538
+ if not return_dict:
539
+ output = (feature_maps,)
540
+ if output_hidden_states:
541
+ output += (hidden_states,)
542
+ return output
543
+
544
+ return BackboneOutput(
545
+ feature_maps=feature_maps,
546
+ hidden_states=hidden_states if output_hidden_states else None,
547
+ attentions=None,
548
+ )
549
+
550
+
551
+ __all__ = ["ConvNextForImageClassification", "ConvNextModel", "ConvNextPreTrainedModel", "ConvNextBackbone"]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convnext/modeling_tf_convnext.py ADDED
@@ -0,0 +1,669 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2022 Meta Platforms Inc. and The HuggingFace Inc. team. All rights reserved.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """TF 2.0 ConvNext model."""
16
+
17
+ from __future__ import annotations
18
+
19
+ from typing import List, Optional, Tuple, Union
20
+
21
+ import numpy as np
22
+ import tensorflow as tf
23
+
24
+ from ...activations_tf import get_tf_activation
25
+ from ...modeling_tf_outputs import TFBaseModelOutput, TFBaseModelOutputWithPooling, TFSequenceClassifierOutput
26
+ from ...modeling_tf_utils import (
27
+ TFModelInputType,
28
+ TFPreTrainedModel,
29
+ TFSequenceClassificationLoss,
30
+ get_initializer,
31
+ keras,
32
+ keras_serializable,
33
+ unpack_inputs,
34
+ )
35
+ from ...tf_utils import shape_list
36
+ from ...utils import add_start_docstrings, add_start_docstrings_to_model_forward, logging, replace_return_docstrings
37
+ from .configuration_convnext import ConvNextConfig
38
+
39
+
40
+ logger = logging.get_logger(__name__)
41
+
42
+
43
+ _CONFIG_FOR_DOC = "ConvNextConfig"
44
+ _CHECKPOINT_FOR_DOC = "facebook/convnext-tiny-224"
45
+
46
+
47
+ class TFConvNextDropPath(keras.layers.Layer):
48
+ """Drop paths (Stochastic Depth) per sample (when applied in main path of residual blocks).
49
+ References:
50
+ (1) github.com:rwightman/pytorch-image-models
51
+ """
52
+
53
+ def __init__(self, drop_path: float, **kwargs):
54
+ super().__init__(**kwargs)
55
+ self.drop_path = drop_path
56
+
57
+ def call(self, x: tf.Tensor, training=None):
58
+ if training:
59
+ keep_prob = 1 - self.drop_path
60
+ shape = (tf.shape(x)[0],) + (1,) * (len(tf.shape(x)) - 1)
61
+ random_tensor = keep_prob + tf.random.uniform(shape, 0, 1)
62
+ random_tensor = tf.floor(random_tensor)
63
+ return (x / keep_prob) * random_tensor
64
+ return x
65
+
66
+
67
+ class TFConvNextEmbeddings(keras.layers.Layer):
68
+ """This class is comparable to (and inspired by) the SwinEmbeddings class
69
+ found in src/transformers/models/swin/modeling_swin.py.
70
+ """
71
+
72
+ def __init__(self, config: ConvNextConfig, **kwargs):
73
+ super().__init__(**kwargs)
74
+ self.patch_embeddings = keras.layers.Conv2D(
75
+ filters=config.hidden_sizes[0],
76
+ kernel_size=config.patch_size,
77
+ strides=config.patch_size,
78
+ name="patch_embeddings",
79
+ kernel_initializer=get_initializer(config.initializer_range),
80
+ bias_initializer=keras.initializers.Zeros(),
81
+ )
82
+ self.layernorm = keras.layers.LayerNormalization(epsilon=1e-6, name="layernorm")
83
+ self.num_channels = config.num_channels
84
+ self.config = config
85
+
86
+ def call(self, pixel_values):
87
+ if isinstance(pixel_values, dict):
88
+ pixel_values = pixel_values["pixel_values"]
89
+
90
+ tf.debugging.assert_equal(
91
+ shape_list(pixel_values)[1],
92
+ self.num_channels,
93
+ message="Make sure that the channel dimension of the pixel values match with the one set in the configuration.",
94
+ )
95
+
96
+ # When running on CPU, `keras.layers.Conv2D` doesn't support `NCHW` format.
97
+ # So change the input format from `NCHW` to `NHWC`.
98
+ # shape = (batch_size, in_height, in_width, in_channels)
99
+ pixel_values = tf.transpose(pixel_values, perm=(0, 2, 3, 1))
100
+
101
+ embeddings = self.patch_embeddings(pixel_values)
102
+ embeddings = self.layernorm(embeddings)
103
+ return embeddings
104
+
105
+ def build(self, input_shape=None):
106
+ if self.built:
107
+ return
108
+ self.built = True
109
+ if getattr(self, "patch_embeddings", None) is not None:
110
+ with tf.name_scope(self.patch_embeddings.name):
111
+ self.patch_embeddings.build([None, None, None, self.config.num_channels])
112
+ if getattr(self, "layernorm", None) is not None:
113
+ with tf.name_scope(self.layernorm.name):
114
+ self.layernorm.build([None, None, None, self.config.hidden_sizes[0]])
115
+
116
+
117
+ class TFConvNextLayer(keras.layers.Layer):
118
+ """This corresponds to the `Block` class in the original implementation.
119
+
120
+ There are two equivalent implementations: [DwConv, LayerNorm (channels_first), Conv, GELU,1x1 Conv]; all in (N, C,
121
+ H, W) (2) [DwConv, Permute to (N, H, W, C), LayerNorm (channels_last), Linear, GELU, Linear]; Permute back
122
+
123
+ The authors used (2) as they find it slightly faster in PyTorch. Since we already permuted the inputs to follow
124
+ NHWC ordering, we can just apply the operations straight-away without the permutation.
125
+
126
+ Args:
127
+ config ([`ConvNextConfig`]): Model configuration class.
128
+ dim (`int`): Number of input channels.
129
+ drop_path (`float`): Stochastic depth rate. Default: 0.0.
130
+ """
131
+
132
+ def __init__(self, config, dim, drop_path=0.0, **kwargs):
133
+ super().__init__(**kwargs)
134
+ self.dim = dim
135
+ self.config = config
136
+ self.dwconv = keras.layers.Conv2D(
137
+ filters=dim,
138
+ kernel_size=7,
139
+ padding="same",
140
+ groups=dim,
141
+ kernel_initializer=get_initializer(config.initializer_range),
142
+ bias_initializer="zeros",
143
+ name="dwconv",
144
+ ) # depthwise conv
145
+ self.layernorm = keras.layers.LayerNormalization(
146
+ epsilon=1e-6,
147
+ name="layernorm",
148
+ )
149
+ self.pwconv1 = keras.layers.Dense(
150
+ units=4 * dim,
151
+ kernel_initializer=get_initializer(config.initializer_range),
152
+ bias_initializer="zeros",
153
+ name="pwconv1",
154
+ ) # pointwise/1x1 convs, implemented with linear layers
155
+ self.act = get_tf_activation(config.hidden_act)
156
+ self.pwconv2 = keras.layers.Dense(
157
+ units=dim,
158
+ kernel_initializer=get_initializer(config.initializer_range),
159
+ bias_initializer="zeros",
160
+ name="pwconv2",
161
+ )
162
+ # Using `layers.Activation` instead of `tf.identity` to better control `training`
163
+ # behaviour.
164
+ self.drop_path = (
165
+ TFConvNextDropPath(drop_path, name="drop_path")
166
+ if drop_path > 0.0
167
+ else keras.layers.Activation("linear", name="drop_path")
168
+ )
169
+
170
+ def build(self, input_shape: tf.TensorShape = None):
171
+ # PT's `nn.Parameters` must be mapped to a TF layer weight to inherit the same name hierarchy (and vice-versa)
172
+ self.layer_scale_parameter = (
173
+ self.add_weight(
174
+ shape=(self.dim,),
175
+ initializer=keras.initializers.Constant(value=self.config.layer_scale_init_value),
176
+ trainable=True,
177
+ name="layer_scale_parameter",
178
+ )
179
+ if self.config.layer_scale_init_value > 0
180
+ else None
181
+ )
182
+
183
+ if self.built:
184
+ return
185
+ self.built = True
186
+ if getattr(self, "dwconv", None) is not None:
187
+ with tf.name_scope(self.dwconv.name):
188
+ self.dwconv.build([None, None, None, self.dim])
189
+ if getattr(self, "layernorm", None) is not None:
190
+ with tf.name_scope(self.layernorm.name):
191
+ self.layernorm.build([None, None, None, self.dim])
192
+ if getattr(self, "pwconv1", None) is not None:
193
+ with tf.name_scope(self.pwconv1.name):
194
+ self.pwconv1.build([None, None, self.dim])
195
+ if getattr(self, "pwconv2", None) is not None:
196
+ with tf.name_scope(self.pwconv2.name):
197
+ self.pwconv2.build([None, None, 4 * self.dim])
198
+ if getattr(self, "drop_path", None) is not None:
199
+ with tf.name_scope(self.drop_path.name):
200
+ self.drop_path.build(None)
201
+
202
+ def call(self, hidden_states, training=False):
203
+ input = hidden_states
204
+ x = self.dwconv(hidden_states)
205
+ x = self.layernorm(x)
206
+ x = self.pwconv1(x)
207
+ x = self.act(x)
208
+ x = self.pwconv2(x)
209
+
210
+ if self.layer_scale_parameter is not None:
211
+ x = self.layer_scale_parameter * x
212
+
213
+ x = input + self.drop_path(x, training=training)
214
+ return x
215
+
216
+
217
+ class TFConvNextStage(keras.layers.Layer):
218
+ """ConvNext stage, consisting of an optional downsampling layer + multiple residual blocks.
219
+
220
+ Args:
221
+ config (`ConvNextV2Config`):
222
+ Model configuration class.
223
+ in_channels (`int`):
224
+ Number of input channels.
225
+ out_channels (`int`):
226
+ Number of output channels.
227
+ depth (`int`):
228
+ Number of residual blocks.
229
+ drop_path_rates(`List[float]`):
230
+ Stochastic depth rates for each layer.
231
+ """
232
+
233
+ def __init__(
234
+ self,
235
+ config: ConvNextConfig,
236
+ in_channels: int,
237
+ out_channels: int,
238
+ kernel_size: int = 2,
239
+ stride: int = 2,
240
+ depth: int = 2,
241
+ drop_path_rates: Optional[List[float]] = None,
242
+ **kwargs,
243
+ ):
244
+ super().__init__(**kwargs)
245
+ if in_channels != out_channels or stride > 1:
246
+ self.downsampling_layer = [
247
+ keras.layers.LayerNormalization(
248
+ epsilon=1e-6,
249
+ name="downsampling_layer.0",
250
+ ),
251
+ # Inputs to this layer will follow NHWC format since we
252
+ # transposed the inputs from NCHW to NHWC in the `TFConvNextEmbeddings`
253
+ # layer. All the outputs throughout the model will be in NHWC
254
+ # from this point on until the output where we again change to
255
+ # NCHW.
256
+ keras.layers.Conv2D(
257
+ filters=out_channels,
258
+ kernel_size=kernel_size,
259
+ strides=stride,
260
+ kernel_initializer=get_initializer(config.initializer_range),
261
+ bias_initializer=keras.initializers.Zeros(),
262
+ name="downsampling_layer.1",
263
+ ),
264
+ ]
265
+ else:
266
+ self.downsampling_layer = [tf.identity]
267
+
268
+ drop_path_rates = drop_path_rates or [0.0] * depth
269
+ self.layers = [
270
+ TFConvNextLayer(
271
+ config,
272
+ dim=out_channels,
273
+ drop_path=drop_path_rates[j],
274
+ name=f"layers.{j}",
275
+ )
276
+ for j in range(depth)
277
+ ]
278
+ self.in_channels = in_channels
279
+ self.out_channels = out_channels
280
+ self.stride = stride
281
+
282
+ def call(self, hidden_states):
283
+ for layer in self.downsampling_layer:
284
+ hidden_states = layer(hidden_states)
285
+ for layer in self.layers:
286
+ hidden_states = layer(hidden_states)
287
+ return hidden_states
288
+
289
+ def build(self, input_shape=None):
290
+ if self.built:
291
+ return
292
+ self.built = True
293
+ if getattr(self, "layers", None) is not None:
294
+ for layer in self.layers:
295
+ with tf.name_scope(layer.name):
296
+ layer.build(None)
297
+ if self.in_channels != self.out_channels or self.stride > 1:
298
+ with tf.name_scope(self.downsampling_layer[0].name):
299
+ self.downsampling_layer[0].build([None, None, None, self.in_channels])
300
+ with tf.name_scope(self.downsampling_layer[1].name):
301
+ self.downsampling_layer[1].build([None, None, None, self.in_channels])
302
+
303
+
304
+ class TFConvNextEncoder(keras.layers.Layer):
305
+ def __init__(self, config, **kwargs):
306
+ super().__init__(**kwargs)
307
+ self.stages = []
308
+ drop_path_rates = tf.linspace(0.0, config.drop_path_rate, sum(config.depths))
309
+ drop_path_rates = tf.split(drop_path_rates, config.depths)
310
+ drop_path_rates = [x.numpy().tolist() for x in drop_path_rates]
311
+ prev_chs = config.hidden_sizes[0]
312
+ for i in range(config.num_stages):
313
+ out_chs = config.hidden_sizes[i]
314
+ stage = TFConvNextStage(
315
+ config,
316
+ in_channels=prev_chs,
317
+ out_channels=out_chs,
318
+ stride=2 if i > 0 else 1,
319
+ depth=config.depths[i],
320
+ drop_path_rates=drop_path_rates[i],
321
+ name=f"stages.{i}",
322
+ )
323
+ self.stages.append(stage)
324
+ prev_chs = out_chs
325
+
326
+ def call(self, hidden_states, output_hidden_states=False, return_dict=True):
327
+ all_hidden_states = () if output_hidden_states else None
328
+
329
+ for i, layer_module in enumerate(self.stages):
330
+ if output_hidden_states:
331
+ all_hidden_states = all_hidden_states + (hidden_states,)
332
+
333
+ hidden_states = layer_module(hidden_states)
334
+
335
+ if output_hidden_states:
336
+ all_hidden_states = all_hidden_states + (hidden_states,)
337
+
338
+ if not return_dict:
339
+ return tuple(v for v in [hidden_states, all_hidden_states] if v is not None)
340
+
341
+ return TFBaseModelOutput(last_hidden_state=hidden_states, hidden_states=all_hidden_states)
342
+
343
+ def build(self, input_shape=None):
344
+ for stage in self.stages:
345
+ with tf.name_scope(stage.name):
346
+ stage.build(None)
347
+
348
+
349
+ @keras_serializable
350
+ class TFConvNextMainLayer(keras.layers.Layer):
351
+ config_class = ConvNextConfig
352
+
353
+ def __init__(self, config: ConvNextConfig, add_pooling_layer: bool = True, **kwargs):
354
+ super().__init__(**kwargs)
355
+
356
+ self.config = config
357
+ self.embeddings = TFConvNextEmbeddings(config, name="embeddings")
358
+ self.encoder = TFConvNextEncoder(config, name="encoder")
359
+ self.layernorm = keras.layers.LayerNormalization(epsilon=config.layer_norm_eps, name="layernorm")
360
+ # We are setting the `data_format` like so because from here on we will revert to the
361
+ # NCHW output format
362
+ self.pooler = keras.layers.GlobalAvgPool2D(data_format="channels_first") if add_pooling_layer else None
363
+
364
+ @unpack_inputs
365
+ def call(
366
+ self,
367
+ pixel_values: TFModelInputType | None = None,
368
+ output_hidden_states: Optional[bool] = None,
369
+ return_dict: Optional[bool] = None,
370
+ training: bool = False,
371
+ ) -> Union[TFBaseModelOutputWithPooling, Tuple[tf.Tensor]]:
372
+ output_hidden_states = (
373
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
374
+ )
375
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
376
+
377
+ if pixel_values is None:
378
+ raise ValueError("You have to specify pixel_values")
379
+
380
+ embedding_output = self.embeddings(pixel_values, training=training)
381
+
382
+ encoder_outputs = self.encoder(
383
+ embedding_output,
384
+ output_hidden_states=output_hidden_states,
385
+ return_dict=return_dict,
386
+ training=training,
387
+ )
388
+
389
+ last_hidden_state = encoder_outputs[0]
390
+ # Change to NCHW output format have uniformity in the modules
391
+ last_hidden_state = tf.transpose(last_hidden_state, perm=(0, 3, 1, 2))
392
+ pooled_output = self.layernorm(self.pooler(last_hidden_state))
393
+
394
+ # Change the other hidden state outputs to NCHW as well
395
+ if output_hidden_states:
396
+ hidden_states = tuple([tf.transpose(h, perm=(0, 3, 1, 2)) for h in encoder_outputs[1]])
397
+
398
+ if not return_dict:
399
+ hidden_states = hidden_states if output_hidden_states else ()
400
+ return (last_hidden_state, pooled_output) + hidden_states
401
+
402
+ return TFBaseModelOutputWithPooling(
403
+ last_hidden_state=last_hidden_state,
404
+ pooler_output=pooled_output,
405
+ hidden_states=hidden_states if output_hidden_states else encoder_outputs.hidden_states,
406
+ )
407
+
408
+ def build(self, input_shape=None):
409
+ if self.built:
410
+ return
411
+ self.built = True
412
+ if getattr(self, "embeddings", None) is not None:
413
+ with tf.name_scope(self.embeddings.name):
414
+ self.embeddings.build(None)
415
+ if getattr(self, "encoder", None) is not None:
416
+ with tf.name_scope(self.encoder.name):
417
+ self.encoder.build(None)
418
+ if getattr(self, "layernorm", None) is not None:
419
+ with tf.name_scope(self.layernorm.name):
420
+ self.layernorm.build([None, self.config.hidden_sizes[-1]])
421
+
422
+
423
+ class TFConvNextPreTrainedModel(TFPreTrainedModel):
424
+ """
425
+ An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained
426
+ models.
427
+ """
428
+
429
+ config_class = ConvNextConfig
430
+ base_model_prefix = "convnext"
431
+ main_input_name = "pixel_values"
432
+
433
+
434
+ CONVNEXT_START_DOCSTRING = r"""
435
+ This model inherits from [`TFPreTrainedModel`]. Check the superclass documentation for the generic methods the
436
+ library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads
437
+ etc.)
438
+
439
+ This model is also a [keras.Model](https://www.tensorflow.org/api_docs/python/tf/keras/Model) subclass. Use it
440
+ as a regular TF 2.0 Keras Model and refer to the TF 2.0 documentation for all matter related to general usage and
441
+ behavior.
442
+
443
+ <Tip>
444
+
445
+ TensorFlow models and layers in `transformers` accept two formats as input:
446
+
447
+ - having all inputs as keyword arguments (like PyTorch models), or
448
+ - having all inputs as a list, tuple or dict in the first positional argument.
449
+
450
+ The reason the second format is supported is that Keras methods prefer this format when passing inputs to models
451
+ and layers. Because of this support, when using methods like `model.fit()` things should "just work" for you - just
452
+ pass your inputs and labels in any format that `model.fit()` supports! If, however, you want to use the second
453
+ format outside of Keras methods like `fit()` and `predict()`, such as when creating your own layers or models with
454
+ the Keras `Functional` API, there are three possibilities you can use to gather all the input Tensors in the first
455
+ positional argument:
456
+
457
+ - a single Tensor with `pixel_values` only and nothing else: `model(pixel_values)`
458
+ - a list of varying length with one or several input Tensors IN THE ORDER given in the docstring:
459
+ `model([pixel_values, attention_mask])` or `model([pixel_values, attention_mask, token_type_ids])`
460
+ - a dictionary with one or several input Tensors associated to the input names given in the docstring:
461
+ `model({"pixel_values": pixel_values, "token_type_ids": token_type_ids})`
462
+
463
+ Note that when creating models and layers with
464
+ [subclassing](https://keras.io/guides/making_new_layers_and_models_via_subclassing/) then you don't need to worry
465
+ about any of this, as you can just pass inputs like you would to any other Python function!
466
+
467
+ </Tip>
468
+
469
+ Parameters:
470
+ config ([`ConvNextConfig`]): Model configuration class with all the parameters of the model.
471
+ Initializing with a config file does not load the weights associated with the model, only the
472
+ configuration. Check out the [`~TFPreTrainedModel.from_pretrained`] method to load the model weights.
473
+ """
474
+
475
+ CONVNEXT_INPUTS_DOCSTRING = r"""
476
+ Args:
477
+ pixel_values (`np.ndarray`, `tf.Tensor`, `List[tf.Tensor]` ``Dict[str, tf.Tensor]` or `Dict[str, np.ndarray]` and each example must have the shape `(batch_size, num_channels, height, width)`):
478
+ Pixel values. Pixel values can be obtained using [`AutoImageProcessor`]. See
479
+ [`ConvNextImageProcessor.__call__`] for details.
480
+
481
+ output_hidden_states (`bool`, *optional*):
482
+ Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
483
+ more detail. This argument can be used only in eager mode, in graph mode the value in the config will be
484
+ used instead.
485
+ return_dict (`bool`, *optional*):
486
+ Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. This argument can be used in
487
+ eager mode, in graph mode the value will always be set to True.
488
+ """
489
+
490
+
491
+ @add_start_docstrings(
492
+ "The bare ConvNext model outputting raw features without any specific head on top.",
493
+ CONVNEXT_START_DOCSTRING,
494
+ )
495
+ class TFConvNextModel(TFConvNextPreTrainedModel):
496
+ def __init__(self, config, *inputs, add_pooling_layer=True, **kwargs):
497
+ super().__init__(config, *inputs, **kwargs)
498
+ self.convnext = TFConvNextMainLayer(config, add_pooling_layer=add_pooling_layer, name="convnext")
499
+
500
+ @unpack_inputs
501
+ @add_start_docstrings_to_model_forward(CONVNEXT_INPUTS_DOCSTRING)
502
+ @replace_return_docstrings(output_type=TFBaseModelOutputWithPooling, config_class=_CONFIG_FOR_DOC)
503
+ def call(
504
+ self,
505
+ pixel_values: TFModelInputType | None = None,
506
+ output_hidden_states: Optional[bool] = None,
507
+ return_dict: Optional[bool] = None,
508
+ training: bool = False,
509
+ ) -> Union[TFBaseModelOutputWithPooling, Tuple[tf.Tensor]]:
510
+ r"""
511
+ Returns:
512
+
513
+ Examples:
514
+
515
+ ```python
516
+ >>> from transformers import AutoImageProcessor, TFConvNextModel
517
+ >>> from PIL import Image
518
+ >>> import requests
519
+
520
+ >>> url = "http://images.cocodataset.org/val2017/000000039769.jpg"
521
+ >>> image = Image.open(requests.get(url, stream=True).raw)
522
+
523
+ >>> image_processor = AutoImageProcessor.from_pretrained("facebook/convnext-tiny-224")
524
+ >>> model = TFConvNextModel.from_pretrained("facebook/convnext-tiny-224")
525
+
526
+ >>> inputs = image_processor(images=image, return_tensors="tf")
527
+ >>> outputs = model(**inputs)
528
+ >>> last_hidden_states = outputs.last_hidden_state
529
+ ```"""
530
+ output_hidden_states = (
531
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
532
+ )
533
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
534
+
535
+ if pixel_values is None:
536
+ raise ValueError("You have to specify pixel_values")
537
+
538
+ outputs = self.convnext(
539
+ pixel_values=pixel_values,
540
+ output_hidden_states=output_hidden_states,
541
+ return_dict=return_dict,
542
+ training=training,
543
+ )
544
+
545
+ if not return_dict:
546
+ return (outputs[0],) + outputs[1:]
547
+
548
+ return TFBaseModelOutputWithPooling(
549
+ last_hidden_state=outputs.last_hidden_state,
550
+ pooler_output=outputs.pooler_output,
551
+ hidden_states=outputs.hidden_states,
552
+ )
553
+
554
+ def build(self, input_shape=None):
555
+ if self.built:
556
+ return
557
+ self.built = True
558
+ if getattr(self, "convnext", None) is not None:
559
+ with tf.name_scope(self.convnext.name):
560
+ self.convnext.build(None)
561
+
562
+
563
+ @add_start_docstrings(
564
+ """
565
+ ConvNext Model with an image classification head on top (a linear layer on top of the pooled features), e.g. for
566
+ ImageNet.
567
+ """,
568
+ CONVNEXT_START_DOCSTRING,
569
+ )
570
+ class TFConvNextForImageClassification(TFConvNextPreTrainedModel, TFSequenceClassificationLoss):
571
+ def __init__(self, config: ConvNextConfig, *inputs, **kwargs):
572
+ super().__init__(config, *inputs, **kwargs)
573
+
574
+ self.num_labels = config.num_labels
575
+ self.convnext = TFConvNextMainLayer(config, name="convnext")
576
+
577
+ # Classifier head
578
+ self.classifier = keras.layers.Dense(
579
+ units=config.num_labels,
580
+ kernel_initializer=get_initializer(config.initializer_range),
581
+ bias_initializer="zeros",
582
+ name="classifier",
583
+ )
584
+ self.config = config
585
+
586
+ @unpack_inputs
587
+ @add_start_docstrings_to_model_forward(CONVNEXT_INPUTS_DOCSTRING)
588
+ @replace_return_docstrings(output_type=TFSequenceClassifierOutput, config_class=_CONFIG_FOR_DOC)
589
+ def call(
590
+ self,
591
+ pixel_values: TFModelInputType | None = None,
592
+ output_hidden_states: Optional[bool] = None,
593
+ return_dict: Optional[bool] = None,
594
+ labels: np.ndarray | tf.Tensor | None = None,
595
+ training: Optional[bool] = False,
596
+ ) -> Union[TFSequenceClassifierOutput, Tuple[tf.Tensor]]:
597
+ r"""
598
+ labels (`tf.Tensor` or `np.ndarray` of shape `(batch_size,)`, *optional*):
599
+ Labels for computing the image classification/regression loss. Indices should be in `[0, ...,
600
+ config.num_labels - 1]`. If `config.num_labels == 1` a regression loss is computed (Mean-Square loss), If
601
+ `config.num_labels > 1` a classification loss is computed (Cross-Entropy).
602
+
603
+ Returns:
604
+
605
+ Examples:
606
+
607
+ ```python
608
+ >>> from transformers import AutoImageProcessor, TFConvNextForImageClassification
609
+ >>> import tensorflow as tf
610
+ >>> from PIL import Image
611
+ >>> import requests
612
+
613
+ >>> url = "http://images.cocodataset.org/val2017/000000039769.jpg"
614
+ >>> image = Image.open(requests.get(url, stream=True).raw)
615
+
616
+ >>> image_processor = AutoImageProcessor.from_pretrained("facebook/convnext-tiny-224")
617
+ >>> model = TFConvNextForImageClassification.from_pretrained("facebook/convnext-tiny-224")
618
+
619
+ >>> inputs = image_processor(images=image, return_tensors="tf")
620
+ >>> outputs = model(**inputs)
621
+ >>> logits = outputs.logits
622
+ >>> # model predicts one of the 1000 ImageNet classes
623
+ >>> predicted_class_idx = tf.math.argmax(logits, axis=-1)[0]
624
+ >>> print("Predicted class:", model.config.id2label[int(predicted_class_idx)])
625
+ ```"""
626
+ output_hidden_states = (
627
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
628
+ )
629
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
630
+
631
+ if pixel_values is None:
632
+ raise ValueError("You have to specify pixel_values")
633
+
634
+ outputs = self.convnext(
635
+ pixel_values,
636
+ output_hidden_states=output_hidden_states,
637
+ return_dict=return_dict,
638
+ training=training,
639
+ )
640
+
641
+ pooled_output = outputs.pooler_output if return_dict else outputs[1]
642
+
643
+ logits = self.classifier(pooled_output)
644
+ loss = None if labels is None else self.hf_compute_loss(labels=labels, logits=logits)
645
+
646
+ if not return_dict:
647
+ output = (logits,) + outputs[2:]
648
+ return ((loss,) + output) if loss is not None else output
649
+
650
+ return TFSequenceClassifierOutput(
651
+ loss=loss,
652
+ logits=logits,
653
+ hidden_states=outputs.hidden_states,
654
+ )
655
+
656
+ def build(self, input_shape=None):
657
+ if self.built:
658
+ return
659
+ self.built = True
660
+ if getattr(self, "convnext", None) is not None:
661
+ with tf.name_scope(self.convnext.name):
662
+ self.convnext.build(None)
663
+ if getattr(self, "classifier", None) is not None:
664
+ if hasattr(self.classifier, "name"):
665
+ with tf.name_scope(self.classifier.name):
666
+ self.classifier.build([None, None, self.config.hidden_sizes[-1]])
667
+
668
+
669
+ __all__ = ["TFConvNextForImageClassification", "TFConvNextModel", "TFConvNextPreTrainedModel"]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convnextv2/__init__.py ADDED
@@ -0,0 +1,28 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # Copyright 2024 The HuggingFace Team. All rights reserved.
2
+ #
3
+ # Licensed under the Apache License, Version 2.0 (the "License");
4
+ # you may not use this file except in compliance with the License.
5
+ # You may obtain a copy of the License at
6
+ #
7
+ # http://www.apache.org/licenses/LICENSE-2.0
8
+ #
9
+ # Unless required by applicable law or agreed to in writing, software
10
+ # distributed under the License is distributed on an "AS IS" BASIS,
11
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12
+ # See the License for the specific language governing permissions and
13
+ # limitations under the License.
14
+ from typing import TYPE_CHECKING
15
+
16
+ from ...utils import _LazyModule
17
+ from ...utils.import_utils import define_import_structure
18
+
19
+
20
+ if TYPE_CHECKING:
21
+ from .configuration_convnextv2 import *
22
+ from .modeling_convnextv2 import *
23
+ from .modeling_tf_convnextv2 import *
24
+ else:
25
+ import sys
26
+
27
+ _file = globals()["__file__"]
28
+ sys.modules[__name__] = _LazyModule(__name__, _file, define_import_structure(_file), module_spec=__spec__)
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convnextv2/configuration_convnextv2.py ADDED
@@ -0,0 +1,118 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2023 Meta Platforms, Inc. and The HuggingFace Inc. team. All rights reserved.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """ConvNeXTV2 model configuration"""
16
+
17
+ from ...configuration_utils import PretrainedConfig
18
+ from ...utils import logging
19
+ from ...utils.backbone_utils import BackboneConfigMixin, get_aligned_output_features_output_indices
20
+
21
+
22
+ logger = logging.get_logger(__name__)
23
+
24
+
25
+ class ConvNextV2Config(BackboneConfigMixin, PretrainedConfig):
26
+ r"""
27
+ This is the configuration class to store the configuration of a [`ConvNextV2Model`]. It is used to instantiate an
28
+ ConvNeXTV2 model according to the specified arguments, defining the model architecture. Instantiating a
29
+ configuration with the defaults will yield a similar configuration to that of the ConvNeXTV2
30
+ [facebook/convnextv2-tiny-1k-224](https://huggingface.co/facebook/convnextv2-tiny-1k-224) architecture.
31
+
32
+ Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
33
+ documentation from [`PretrainedConfig`] for more information.
34
+
35
+ Args:
36
+ num_channels (`int`, *optional*, defaults to 3):
37
+ The number of input channels.
38
+ patch_size (`int`, *optional*, defaults to 4):
39
+ Patch size to use in the patch embedding layer.
40
+ num_stages (`int`, *optional*, defaults to 4):
41
+ The number of stages in the model.
42
+ hidden_sizes (`List[int]`, *optional*, defaults to `[96, 192, 384, 768]`):
43
+ Dimensionality (hidden size) at each stage.
44
+ depths (`List[int]`, *optional*, defaults to `[3, 3, 9, 3]`):
45
+ Depth (number of blocks) for each stage.
46
+ hidden_act (`str` or `function`, *optional*, defaults to `"gelu"`):
47
+ The non-linear activation function (function or string) in each block. If string, `"gelu"`, `"relu"`,
48
+ `"selu"` and `"gelu_new"` are supported.
49
+ initializer_range (`float`, *optional*, defaults to 0.02):
50
+ The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
51
+ layer_norm_eps (`float`, *optional*, defaults to 1e-12):
52
+ The epsilon used by the layer normalization layers.
53
+ drop_path_rate (`float`, *optional*, defaults to 0.0):
54
+ The drop rate for stochastic depth.
55
+ image_size (`int`, *optional*, defaults to 224):
56
+ The size (resolution) of each image.
57
+ out_features (`List[str]`, *optional*):
58
+ If used as backbone, list of features to output. Can be any of `"stem"`, `"stage1"`, `"stage2"`, etc.
59
+ (depending on how many stages the model has). If unset and `out_indices` is set, will default to the
60
+ corresponding stages. If unset and `out_indices` is unset, will default to the last stage. Must be in the
61
+ same order as defined in the `stage_names` attribute.
62
+ out_indices (`List[int]`, *optional*):
63
+ If used as backbone, list of indices of features to output. Can be any of 0, 1, 2, etc. (depending on how
64
+ many stages the model has). If unset and `out_features` is set, will default to the corresponding stages.
65
+ If unset and `out_features` is unset, will default to the last stage. Must be in the
66
+ same order as defined in the `stage_names` attribute.
67
+
68
+ Example:
69
+ ```python
70
+ >>> from transformers import ConvNeXTV2Config, ConvNextV2Model
71
+
72
+ >>> # Initializing a ConvNeXTV2 convnextv2-tiny-1k-224 style configuration
73
+ >>> configuration = ConvNeXTV2Config()
74
+
75
+ >>> # Initializing a model (with random weights) from the convnextv2-tiny-1k-224 style configuration
76
+ >>> model = ConvNextV2Model(configuration)
77
+
78
+ >>> # Accessing the model configuration
79
+ >>> configuration = model.config
80
+ ```"""
81
+
82
+ model_type = "convnextv2"
83
+
84
+ def __init__(
85
+ self,
86
+ num_channels=3,
87
+ patch_size=4,
88
+ num_stages=4,
89
+ hidden_sizes=None,
90
+ depths=None,
91
+ hidden_act="gelu",
92
+ initializer_range=0.02,
93
+ layer_norm_eps=1e-12,
94
+ drop_path_rate=0.0,
95
+ image_size=224,
96
+ out_features=None,
97
+ out_indices=None,
98
+ **kwargs,
99
+ ):
100
+ super().__init__(**kwargs)
101
+
102
+ self.num_channels = num_channels
103
+ self.patch_size = patch_size
104
+ self.num_stages = num_stages
105
+ self.hidden_sizes = [96, 192, 384, 768] if hidden_sizes is None else hidden_sizes
106
+ self.depths = [3, 3, 9, 3] if depths is None else depths
107
+ self.hidden_act = hidden_act
108
+ self.initializer_range = initializer_range
109
+ self.layer_norm_eps = layer_norm_eps
110
+ self.drop_path_rate = drop_path_rate
111
+ self.image_size = image_size
112
+ self.stage_names = ["stem"] + [f"stage{idx}" for idx in range(1, len(self.depths) + 1)]
113
+ self._out_features, self._out_indices = get_aligned_output_features_output_indices(
114
+ out_features=out_features, out_indices=out_indices, stage_names=self.stage_names
115
+ )
116
+
117
+
118
+ __all__ = ["ConvNextV2Config"]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convnextv2/convert_convnextv2_to_pytorch.py ADDED
@@ -0,0 +1,286 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2023 The HuggingFace Inc. team.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """Convert ConvNeXTV2 checkpoints from the original repository.
16
+
17
+ URL: https://github.com/facebookresearch/ConvNeXt"""
18
+
19
+ import argparse
20
+ import json
21
+ import os
22
+
23
+ import requests
24
+ import torch
25
+ from huggingface_hub import hf_hub_download
26
+ from PIL import Image
27
+
28
+ from transformers import ConvNextImageProcessor, ConvNextV2Config, ConvNextV2ForImageClassification
29
+ from transformers.image_utils import PILImageResampling
30
+ from transformers.utils import logging
31
+
32
+
33
+ logging.set_verbosity_info()
34
+ logger = logging.get_logger(__name__)
35
+
36
+
37
+ def get_convnextv2_config(checkpoint_url):
38
+ config = ConvNextV2Config()
39
+
40
+ if "atto" in checkpoint_url:
41
+ depths = [2, 2, 6, 2]
42
+ hidden_sizes = [40, 80, 160, 320]
43
+ if "femto" in checkpoint_url:
44
+ depths = [2, 2, 6, 2]
45
+ hidden_sizes = [48, 96, 192, 384]
46
+ if "pico" in checkpoint_url:
47
+ depths = [2, 2, 6, 2]
48
+ hidden_sizes = [64, 128, 256, 512]
49
+ if "nano" in checkpoint_url:
50
+ depths = [2, 2, 8, 2]
51
+ hidden_sizes = [80, 160, 320, 640]
52
+ if "tiny" in checkpoint_url:
53
+ depths = [3, 3, 9, 3]
54
+ hidden_sizes = [96, 192, 384, 768]
55
+ if "base" in checkpoint_url:
56
+ depths = [3, 3, 27, 3]
57
+ hidden_sizes = [128, 256, 512, 1024]
58
+ if "large" in checkpoint_url:
59
+ depths = [3, 3, 27, 3]
60
+ hidden_sizes = [192, 384, 768, 1536]
61
+ if "huge" in checkpoint_url:
62
+ depths = [3, 3, 27, 3]
63
+ hidden_sizes = [352, 704, 1408, 2816]
64
+
65
+ num_labels = 1000
66
+ filename = "imagenet-1k-id2label.json"
67
+ expected_shape = (1, 1000)
68
+
69
+ repo_id = "huggingface/label-files"
70
+ config.num_labels = num_labels
71
+ id2label = json.load(open(hf_hub_download(repo_id, filename, repo_type="dataset"), "r"))
72
+ id2label = {int(k): v for k, v in id2label.items()}
73
+
74
+ config.id2label = id2label
75
+ config.label2id = {v: k for k, v in id2label.items()}
76
+ config.hidden_sizes = hidden_sizes
77
+ config.depths = depths
78
+
79
+ return config, expected_shape
80
+
81
+
82
+ def rename_key(name):
83
+ if "downsample_layers.0.0" in name:
84
+ name = name.replace("downsample_layers.0.0", "embeddings.patch_embeddings")
85
+ if "downsample_layers.0.1" in name:
86
+ name = name.replace("downsample_layers.0.1", "embeddings.norm") # we rename to layernorm later on
87
+ if "downsample_layers.1.0" in name:
88
+ name = name.replace("downsample_layers.1.0", "stages.1.downsampling_layer.0")
89
+ if "downsample_layers.1.1" in name:
90
+ name = name.replace("downsample_layers.1.1", "stages.1.downsampling_layer.1")
91
+ if "downsample_layers.2.0" in name:
92
+ name = name.replace("downsample_layers.2.0", "stages.2.downsampling_layer.0")
93
+ if "downsample_layers.2.1" in name:
94
+ name = name.replace("downsample_layers.2.1", "stages.2.downsampling_layer.1")
95
+ if "downsample_layers.3.0" in name:
96
+ name = name.replace("downsample_layers.3.0", "stages.3.downsampling_layer.0")
97
+ if "downsample_layers.3.1" in name:
98
+ name = name.replace("downsample_layers.3.1", "stages.3.downsampling_layer.1")
99
+ if "stages" in name and "downsampling_layer" not in name:
100
+ # stages.0.0. for instance should be renamed to stages.0.layers.0.
101
+ name = name[: len("stages.0")] + ".layers" + name[len("stages.0") :]
102
+ if "gamma" in name:
103
+ name = name.replace("gamma", "weight")
104
+ if "beta" in name:
105
+ name = name.replace("beta", "bias")
106
+ if "stages" in name:
107
+ name = name.replace("stages", "encoder.stages")
108
+ if "norm" in name:
109
+ name = name.replace("norm", "layernorm")
110
+ if "head" in name:
111
+ name = name.replace("head", "classifier")
112
+
113
+ return name
114
+
115
+
116
+ # We will verify our results on an image of cute cats
117
+ def prepare_img():
118
+ url = "http://images.cocodataset.org/val2017/000000039769.jpg"
119
+ im = Image.open(requests.get(url, stream=True).raw)
120
+ return im
121
+
122
+
123
+ def convert_preprocessor(checkpoint_url):
124
+ if "224" in checkpoint_url:
125
+ size = 224
126
+ crop_pct = 224 / 256
127
+ elif "384" in checkpoint_url:
128
+ size = 384
129
+ crop_pct = None
130
+ else:
131
+ size = 512
132
+ crop_pct = None
133
+
134
+ return ConvNextImageProcessor(
135
+ size=size,
136
+ crop_pct=crop_pct,
137
+ image_mean=[0.485, 0.456, 0.406],
138
+ image_std=[0.229, 0.224, 0.225],
139
+ resample=PILImageResampling.BICUBIC,
140
+ )
141
+
142
+
143
+ @torch.no_grad()
144
+ def convert_convnextv2_checkpoint(checkpoint_url, pytorch_dump_folder_path, save_model, push_to_hub):
145
+ """
146
+ Copy/paste/tweak model's weights to our ConvNeXTV2 structure.
147
+ """
148
+ print("Downloading original model from checkpoint...")
149
+ # define ConvNeXTV2 configuration based on URL
150
+ config, expected_shape = get_convnextv2_config(checkpoint_url)
151
+ # load original state_dict from URL
152
+ state_dict = torch.hub.load_state_dict_from_url(checkpoint_url)["model"]
153
+
154
+ print("Converting model parameters...")
155
+ # rename keys
156
+ for key in state_dict.copy().keys():
157
+ val = state_dict.pop(key)
158
+ state_dict[rename_key(key)] = val
159
+ # add prefix to all keys expect classifier head
160
+ for key in state_dict.copy().keys():
161
+ val = state_dict.pop(key)
162
+ if not key.startswith("classifier"):
163
+ key = "convnextv2." + key
164
+ state_dict[key] = val
165
+
166
+ # load HuggingFace model
167
+ model = ConvNextV2ForImageClassification(config)
168
+ model.load_state_dict(state_dict)
169
+ model.eval()
170
+
171
+ # Check outputs on an image, prepared by ConvNextImageProcessor
172
+ preprocessor = convert_preprocessor(checkpoint_url)
173
+ inputs = preprocessor(images=prepare_img(), return_tensors="pt")
174
+ logits = model(**inputs).logits
175
+
176
+ # note: the logits below were obtained without center cropping
177
+ if checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnextv2/im1k/convnextv2_atto_1k_224_ema.pt":
178
+ expected_logits = torch.tensor([-0.3930, 0.1747, -0.5246, 0.4177, 0.4295])
179
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnextv2/im1k/convnextv2_femto_1k_224_ema.pt":
180
+ expected_logits = torch.tensor([-0.1727, -0.5341, -0.7818, -0.4745, -0.6566])
181
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnextv2/im1k/convnextv2_pico_1k_224_ema.pt":
182
+ expected_logits = torch.tensor([-0.0333, 0.1563, -0.9137, 0.1054, 0.0381])
183
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnextv2/im1k/convnextv2_nano_1k_224_ema.pt":
184
+ expected_logits = torch.tensor([-0.1744, -0.1555, -0.0713, 0.0950, -0.1431])
185
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnextv2/im1k/convnextv2_tiny_1k_224_ema.pt":
186
+ expected_logits = torch.tensor([0.9996, 0.1966, -0.4386, -0.3472, 0.6661])
187
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnextv2/im1k/convnextv2_base_1k_224_ema.pt":
188
+ expected_logits = torch.tensor([-0.2553, -0.6708, -0.1359, 0.2518, -0.2488])
189
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnextv2/im1k/convnextv2_large_1k_224_ema.pt":
190
+ expected_logits = torch.tensor([-0.0673, -0.5627, -0.3753, -0.2722, 0.0178])
191
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnextv2/im1k/convnextv2_huge_1k_224_ema.pt":
192
+ expected_logits = torch.tensor([-0.6377, -0.7458, -0.2150, 0.1184, -0.0597])
193
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnextv2/im22k/convnextv2_nano_22k_224_ema.pt":
194
+ expected_logits = torch.tensor([1.0799, 0.2322, -0.8860, 1.0219, 0.6231])
195
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnextv2/im22k/convnextv2_nano_22k_384_ema.pt":
196
+ expected_logits = torch.tensor([0.3766, 0.4917, -1.1426, 0.9942, 0.6024])
197
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnextv2/im22k/convnextv2_tiny_22k_224_ema.pt":
198
+ expected_logits = torch.tensor([0.4220, -0.6919, -0.4317, -0.2881, -0.6609])
199
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnextv2/im22k/convnextv2_tiny_22k_384_ema.pt":
200
+ expected_logits = torch.tensor([0.1082, -0.8286, -0.5095, 0.4681, -0.8085])
201
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnextv2/im22k/convnextv2_base_22k_224_ema.pt":
202
+ expected_logits = torch.tensor([-0.2419, -0.6221, 0.2176, -0.0980, -0.7527])
203
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnextv2/im22k/convnextv2_base_22k_384_ema.pt":
204
+ expected_logits = torch.tensor([0.0391, -0.4371, 0.3786, 0.1251, -0.2784])
205
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnextv2/im22k/convnextv2_large_22k_224_ema.pt":
206
+ expected_logits = torch.tensor([-0.0504, 0.5636, -0.1729, -0.6507, -0.3949])
207
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnextv2/im22k/convnextv2_large_22k_384_ema.pt":
208
+ expected_logits = torch.tensor([0.3560, 0.9486, 0.3149, -0.2667, -0.5138])
209
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnextv2/im22k/convnextv2_huge_22k_384_ema.pt":
210
+ expected_logits = torch.tensor([-0.2469, -0.4550, -0.5853, -0.0810, 0.0309])
211
+ elif checkpoint_url == "https://dl.fbaipublicfiles.com/convnext/convnextv2/im22k/convnextv2_huge_22k_512_ema.pt":
212
+ expected_logits = torch.tensor([-0.3090, 0.0802, -0.0682, -0.1979, -0.2826])
213
+ else:
214
+ raise ValueError(f"Unknown URL: {checkpoint_url}")
215
+
216
+ assert torch.allclose(logits[0, :5], expected_logits, atol=1e-3)
217
+ assert logits.shape == expected_shape
218
+ print("Model outputs match the original results!")
219
+
220
+ if save_model:
221
+ print("Saving model to local...")
222
+ # Create folder to save model
223
+ if not os.path.isdir(pytorch_dump_folder_path):
224
+ os.mkdir(pytorch_dump_folder_path)
225
+
226
+ model.save_pretrained(pytorch_dump_folder_path)
227
+ preprocessor.save_pretrained(pytorch_dump_folder_path)
228
+
229
+ model_name = "convnextv2"
230
+ if "atto" in checkpoint_url:
231
+ model_name += "-atto"
232
+ if "femto" in checkpoint_url:
233
+ model_name += "-femto"
234
+ if "pico" in checkpoint_url:
235
+ model_name += "-pico"
236
+ if "nano" in checkpoint_url:
237
+ model_name += "-nano"
238
+ elif "tiny" in checkpoint_url:
239
+ model_name += "-tiny"
240
+ elif "base" in checkpoint_url:
241
+ model_name += "-base"
242
+ elif "large" in checkpoint_url:
243
+ model_name += "-large"
244
+ elif "huge" in checkpoint_url:
245
+ model_name += "-huge"
246
+ if "22k" in checkpoint_url and "1k" not in checkpoint_url:
247
+ model_name += "-22k"
248
+ elif "22k" in checkpoint_url and "1k" in checkpoint_url:
249
+ model_name += "-22k-1k"
250
+ elif "1k" in checkpoint_url:
251
+ model_name += "-1k"
252
+ if "224" in checkpoint_url:
253
+ model_name += "-224"
254
+ elif "384" in checkpoint_url:
255
+ model_name += "-384"
256
+ elif "512" in checkpoint_url:
257
+ model_name += "-512"
258
+
259
+ if push_to_hub:
260
+ print(f"Pushing {model_name} to the hub...")
261
+ model.push_to_hub(model_name)
262
+ preprocessor.push_to_hub(model_name)
263
+
264
+
265
+ if __name__ == "__main__":
266
+ parser = argparse.ArgumentParser()
267
+ # Required parameters
268
+ parser.add_argument(
269
+ "--checkpoint_url",
270
+ default="https://dl.fbaipublicfiles.com/convnext/convnextv2/im1k/convnextv2_atto_1k_224_ema.pt",
271
+ type=str,
272
+ help="URL of the original ConvNeXTV2 checkpoint you'd like to convert.",
273
+ )
274
+ parser.add_argument(
275
+ "--pytorch_dump_folder_path",
276
+ default="model",
277
+ type=str,
278
+ help="Path to the output PyTorch model directory.",
279
+ )
280
+ parser.add_argument("--save_model", action="store_true", help="Save model to local")
281
+ parser.add_argument("--push_to_hub", action="store_true", help="Push model and image preprocessor to the hub")
282
+
283
+ args = parser.parse_args()
284
+ convert_convnextv2_checkpoint(
285
+ args.checkpoint_url, args.pytorch_dump_folder_path, args.save_model, args.push_to_hub
286
+ )
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convnextv2/modeling_convnextv2.py ADDED
@@ -0,0 +1,574 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2023 Meta Platforms, Inc. and The HuggingFace Inc. team. All rights reserved.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """PyTorch ConvNextV2 model."""
16
+
17
+ from typing import Optional, Tuple, Union
18
+
19
+ import torch
20
+ import torch.utils.checkpoint
21
+ from torch import nn
22
+ from torch.nn import BCEWithLogitsLoss, CrossEntropyLoss, MSELoss
23
+
24
+ from ...activations import ACT2FN
25
+ from ...modeling_outputs import (
26
+ BackboneOutput,
27
+ BaseModelOutputWithNoAttention,
28
+ BaseModelOutputWithPoolingAndNoAttention,
29
+ ImageClassifierOutputWithNoAttention,
30
+ )
31
+ from ...modeling_utils import PreTrainedModel
32
+ from ...utils import (
33
+ add_code_sample_docstrings,
34
+ add_start_docstrings,
35
+ add_start_docstrings_to_model_forward,
36
+ logging,
37
+ replace_return_docstrings,
38
+ )
39
+ from ...utils.backbone_utils import BackboneMixin
40
+ from .configuration_convnextv2 import ConvNextV2Config
41
+
42
+
43
+ logger = logging.get_logger(__name__)
44
+
45
+ # General docstring
46
+ _CONFIG_FOR_DOC = "ConvNextV2Config"
47
+
48
+ # Base docstring
49
+ _CHECKPOINT_FOR_DOC = "facebook/convnextv2-tiny-1k-224"
50
+ _EXPECTED_OUTPUT_SHAPE = [1, 768, 7, 7]
51
+
52
+ # Image classification docstring
53
+ _IMAGE_CLASS_CHECKPOINT = "facebook/convnextv2-tiny-1k-224"
54
+ _IMAGE_CLASS_EXPECTED_OUTPUT = "tabby, tabby cat"
55
+
56
+
57
+ # Copied from transformers.models.beit.modeling_beit.drop_path
58
+ def drop_path(input: torch.Tensor, drop_prob: float = 0.0, training: bool = False) -> torch.Tensor:
59
+ """
60
+ Drop paths (Stochastic Depth) per sample (when applied in main path of residual blocks).
61
+
62
+ Comment by Ross Wightman: This is the same as the DropConnect impl I created for EfficientNet, etc networks,
63
+ however, the original name is misleading as 'Drop Connect' is a different form of dropout in a separate paper...
64
+ See discussion: https://github.com/tensorflow/tpu/issues/494#issuecomment-532968956 ... I've opted for changing the
65
+ layer and argument names to 'drop path' rather than mix DropConnect as a layer name and use 'survival rate' as the
66
+ argument.
67
+ """
68
+ if drop_prob == 0.0 or not training:
69
+ return input
70
+ keep_prob = 1 - drop_prob
71
+ shape = (input.shape[0],) + (1,) * (input.ndim - 1) # work with diff dim tensors, not just 2D ConvNets
72
+ random_tensor = keep_prob + torch.rand(shape, dtype=input.dtype, device=input.device)
73
+ random_tensor.floor_() # binarize
74
+ output = input.div(keep_prob) * random_tensor
75
+ return output
76
+
77
+
78
+ # Copied from transformers.models.beit.modeling_beit.BeitDropPath with Beit->ConvNextV2
79
+ class ConvNextV2DropPath(nn.Module):
80
+ """Drop paths (Stochastic Depth) per sample (when applied in main path of residual blocks)."""
81
+
82
+ def __init__(self, drop_prob: Optional[float] = None) -> None:
83
+ super().__init__()
84
+ self.drop_prob = drop_prob
85
+
86
+ def forward(self, hidden_states: torch.Tensor) -> torch.Tensor:
87
+ return drop_path(hidden_states, self.drop_prob, self.training)
88
+
89
+ def extra_repr(self) -> str:
90
+ return "p={}".format(self.drop_prob)
91
+
92
+
93
+ class ConvNextV2GRN(nn.Module):
94
+ """GRN (Global Response Normalization) layer"""
95
+
96
+ def __init__(self, dim: int):
97
+ super().__init__()
98
+ self.weight = nn.Parameter(torch.zeros(1, 1, 1, dim))
99
+ self.bias = nn.Parameter(torch.zeros(1, 1, 1, dim))
100
+
101
+ def forward(self, hidden_states: torch.FloatTensor) -> torch.FloatTensor:
102
+ # Compute and normalize global spatial feature maps
103
+ global_features = torch.norm(hidden_states, p=2, dim=(1, 2), keepdim=True)
104
+ norm_features = global_features / (global_features.mean(dim=-1, keepdim=True) + 1e-6)
105
+ hidden_states = self.weight * (hidden_states * norm_features) + self.bias + hidden_states
106
+
107
+ return hidden_states
108
+
109
+
110
+ # Copied from transformers.models.convnext.modeling_convnext.ConvNextLayerNorm with ConvNext->ConvNextV2
111
+ class ConvNextV2LayerNorm(nn.Module):
112
+ r"""LayerNorm that supports two data formats: channels_last (default) or channels_first.
113
+ The ordering of the dimensions in the inputs. channels_last corresponds to inputs with shape (batch_size, height,
114
+ width, channels) while channels_first corresponds to inputs with shape (batch_size, channels, height, width).
115
+ """
116
+
117
+ def __init__(self, normalized_shape, eps=1e-6, data_format="channels_last"):
118
+ super().__init__()
119
+ self.weight = nn.Parameter(torch.ones(normalized_shape))
120
+ self.bias = nn.Parameter(torch.zeros(normalized_shape))
121
+ self.eps = eps
122
+ self.data_format = data_format
123
+ if self.data_format not in ["channels_last", "channels_first"]:
124
+ raise NotImplementedError(f"Unsupported data format: {self.data_format}")
125
+ self.normalized_shape = (normalized_shape,)
126
+
127
+ def forward(self, x: torch.Tensor) -> torch.Tensor:
128
+ if self.data_format == "channels_last":
129
+ x = torch.nn.functional.layer_norm(x, self.normalized_shape, self.weight, self.bias, self.eps)
130
+ elif self.data_format == "channels_first":
131
+ input_dtype = x.dtype
132
+ x = x.float()
133
+ u = x.mean(1, keepdim=True)
134
+ s = (x - u).pow(2).mean(1, keepdim=True)
135
+ x = (x - u) / torch.sqrt(s + self.eps)
136
+ x = x.to(dtype=input_dtype)
137
+ x = self.weight[:, None, None] * x + self.bias[:, None, None]
138
+ return x
139
+
140
+
141
+ # Copied from transformers.models.convnext.modeling_convnext.ConvNextEmbeddings with ConvNext->ConvNextV2
142
+ class ConvNextV2Embeddings(nn.Module):
143
+ """This class is comparable to (and inspired by) the SwinEmbeddings class
144
+ found in src/transformers/models/swin/modeling_swin.py.
145
+ """
146
+
147
+ def __init__(self, config):
148
+ super().__init__()
149
+ self.patch_embeddings = nn.Conv2d(
150
+ config.num_channels, config.hidden_sizes[0], kernel_size=config.patch_size, stride=config.patch_size
151
+ )
152
+ self.layernorm = ConvNextV2LayerNorm(config.hidden_sizes[0], eps=1e-6, data_format="channels_first")
153
+ self.num_channels = config.num_channels
154
+
155
+ def forward(self, pixel_values: torch.FloatTensor) -> torch.Tensor:
156
+ num_channels = pixel_values.shape[1]
157
+ if num_channels != self.num_channels:
158
+ raise ValueError(
159
+ "Make sure that the channel dimension of the pixel values match with the one set in the configuration."
160
+ )
161
+ embeddings = self.patch_embeddings(pixel_values)
162
+ embeddings = self.layernorm(embeddings)
163
+ return embeddings
164
+
165
+
166
+ class ConvNextV2Layer(nn.Module):
167
+ """This corresponds to the `Block` class in the original implementation.
168
+
169
+ There are two equivalent implementations: [DwConv, LayerNorm (channels_first), Conv, GELU,1x1 Conv]; all in (N, C,
170
+ H, W) (2) [DwConv, Permute to (N, H, W, C), LayerNorm (channels_last), Linear, GELU, Linear]; Permute back
171
+
172
+ The authors used (2) as they find it slightly faster in PyTorch.
173
+
174
+ Args:
175
+ config ([`ConvNextV2Config`]): Model configuration class.
176
+ dim (`int`): Number of input channels.
177
+ drop_path (`float`): Stochastic depth rate. Default: 0.0.
178
+ """
179
+
180
+ def __init__(self, config, dim, drop_path=0):
181
+ super().__init__()
182
+ # depthwise conv
183
+ self.dwconv = nn.Conv2d(dim, dim, kernel_size=7, padding=3, groups=dim)
184
+ self.layernorm = ConvNextV2LayerNorm(dim, eps=1e-6)
185
+ # pointwise/1x1 convs, implemented with linear layers
186
+ self.pwconv1 = nn.Linear(dim, 4 * dim)
187
+ self.act = ACT2FN[config.hidden_act]
188
+ self.grn = ConvNextV2GRN(4 * dim)
189
+ self.pwconv2 = nn.Linear(4 * dim, dim)
190
+ self.drop_path = ConvNextV2DropPath(drop_path) if drop_path > 0.0 else nn.Identity()
191
+
192
+ def forward(self, hidden_states: torch.FloatTensor) -> torch.Tensor:
193
+ input = hidden_states
194
+ x = self.dwconv(hidden_states)
195
+ # (batch_size, num_channels, height, width) -> (batch_size, height, width, num_channels)
196
+ x = x.permute(0, 2, 3, 1)
197
+ x = self.layernorm(x)
198
+ x = self.pwconv1(x)
199
+ x = self.act(x)
200
+ x = self.grn(x)
201
+ x = self.pwconv2(x)
202
+ # (batch_size, height, width, num_channels) -> (batch_size, num_channels, height, width)
203
+ x = x.permute(0, 3, 1, 2)
204
+
205
+ x = input + self.drop_path(x)
206
+ return x
207
+
208
+
209
+ # Copied from transformers.models.convnext.modeling_convnext.ConvNextStage with ConvNeXT->ConvNeXTV2, ConvNext->ConvNextV2
210
+ class ConvNextV2Stage(nn.Module):
211
+ """ConvNeXTV2 stage, consisting of an optional downsampling layer + multiple residual blocks.
212
+
213
+ Args:
214
+ config ([`ConvNextV2Config`]): Model configuration class.
215
+ in_channels (`int`): Number of input channels.
216
+ out_channels (`int`): Number of output channels.
217
+ depth (`int`): Number of residual blocks.
218
+ drop_path_rates(`List[float]`): Stochastic depth rates for each layer.
219
+ """
220
+
221
+ def __init__(self, config, in_channels, out_channels, kernel_size=2, stride=2, depth=2, drop_path_rates=None):
222
+ super().__init__()
223
+
224
+ if in_channels != out_channels or stride > 1:
225
+ self.downsampling_layer = nn.Sequential(
226
+ ConvNextV2LayerNorm(in_channels, eps=1e-6, data_format="channels_first"),
227
+ nn.Conv2d(in_channels, out_channels, kernel_size=kernel_size, stride=stride),
228
+ )
229
+ else:
230
+ self.downsampling_layer = nn.Identity()
231
+ drop_path_rates = drop_path_rates or [0.0] * depth
232
+ self.layers = nn.Sequential(
233
+ *[ConvNextV2Layer(config, dim=out_channels, drop_path=drop_path_rates[j]) for j in range(depth)]
234
+ )
235
+
236
+ def forward(self, hidden_states: torch.FloatTensor) -> torch.Tensor:
237
+ hidden_states = self.downsampling_layer(hidden_states)
238
+ hidden_states = self.layers(hidden_states)
239
+ return hidden_states
240
+
241
+
242
+ # Copied from transformers.models.convnext.modeling_convnext.ConvNextEncoder with ConvNext->ConvNextV2
243
+ class ConvNextV2Encoder(nn.Module):
244
+ def __init__(self, config):
245
+ super().__init__()
246
+ self.stages = nn.ModuleList()
247
+ drop_path_rates = [
248
+ x.tolist() for x in torch.linspace(0, config.drop_path_rate, sum(config.depths)).split(config.depths)
249
+ ]
250
+ prev_chs = config.hidden_sizes[0]
251
+ for i in range(config.num_stages):
252
+ out_chs = config.hidden_sizes[i]
253
+ stage = ConvNextV2Stage(
254
+ config,
255
+ in_channels=prev_chs,
256
+ out_channels=out_chs,
257
+ stride=2 if i > 0 else 1,
258
+ depth=config.depths[i],
259
+ drop_path_rates=drop_path_rates[i],
260
+ )
261
+ self.stages.append(stage)
262
+ prev_chs = out_chs
263
+
264
+ def forward(
265
+ self,
266
+ hidden_states: torch.FloatTensor,
267
+ output_hidden_states: Optional[bool] = False,
268
+ return_dict: Optional[bool] = True,
269
+ ) -> Union[Tuple, BaseModelOutputWithNoAttention]:
270
+ all_hidden_states = () if output_hidden_states else None
271
+
272
+ for i, layer_module in enumerate(self.stages):
273
+ if output_hidden_states:
274
+ all_hidden_states = all_hidden_states + (hidden_states,)
275
+
276
+ hidden_states = layer_module(hidden_states)
277
+
278
+ if output_hidden_states:
279
+ all_hidden_states = all_hidden_states + (hidden_states,)
280
+
281
+ if not return_dict:
282
+ return tuple(v for v in [hidden_states, all_hidden_states] if v is not None)
283
+
284
+ return BaseModelOutputWithNoAttention(
285
+ last_hidden_state=hidden_states,
286
+ hidden_states=all_hidden_states,
287
+ )
288
+
289
+
290
+ # Copied from transformers.models.convnext.modeling_convnext.ConvNextPreTrainedModel with ConvNext->ConvNextV2, convnext->convnextv2
291
+ class ConvNextV2PreTrainedModel(PreTrainedModel):
292
+ """
293
+ An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained
294
+ models.
295
+ """
296
+
297
+ config_class = ConvNextV2Config
298
+ base_model_prefix = "convnextv2"
299
+ main_input_name = "pixel_values"
300
+ _no_split_modules = ["ConvNextV2Layer"]
301
+
302
+ def _init_weights(self, module):
303
+ """Initialize the weights"""
304
+ if isinstance(module, (nn.Linear, nn.Conv2d)):
305
+ # Slightly different from the TF version which uses truncated_normal for initialization
306
+ # cf https://github.com/pytorch/pytorch/pull/5617
307
+ module.weight.data.normal_(mean=0.0, std=self.config.initializer_range)
308
+ if module.bias is not None:
309
+ module.bias.data.zero_()
310
+ elif isinstance(module, nn.LayerNorm):
311
+ module.bias.data.zero_()
312
+ module.weight.data.fill_(1.0)
313
+
314
+
315
+ CONVNEXTV2_START_DOCSTRING = r"""
316
+ This model is a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass. Use it
317
+ as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage and
318
+ behavior.
319
+
320
+ Parameters:
321
+ config ([`ConvNextV2Config`]): Model configuration class with all the parameters of the model.
322
+ Initializing with a config file does not load the weights associated with the model, only the
323
+ configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights.
324
+ """
325
+
326
+ CONVNEXTV2_INPUTS_DOCSTRING = r"""
327
+ Args:
328
+ pixel_values (`torch.FloatTensor` of shape `(batch_size, num_channels, height, width)`):
329
+ Pixel values. Pixel values can be obtained using [`ConvNextImageProcessor`]. See
330
+ [`ConvNextImageProcessor.__call__`] for details.
331
+ output_hidden_states (`bool`, *optional*):
332
+ Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
333
+ more detail.
334
+ return_dict (`bool`, *optional*):
335
+ Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
336
+ """
337
+
338
+
339
+ @add_start_docstrings(
340
+ "The bare ConvNextV2 model outputting raw features without any specific head on top.",
341
+ CONVNEXTV2_START_DOCSTRING,
342
+ )
343
+ # Copied from transformers.models.convnext.modeling_convnext.ConvNextModel with CONVNEXT->CONVNEXTV2, ConvNext->ConvNextV2
344
+ class ConvNextV2Model(ConvNextV2PreTrainedModel):
345
+ def __init__(self, config):
346
+ super().__init__(config)
347
+ self.config = config
348
+
349
+ self.embeddings = ConvNextV2Embeddings(config)
350
+ self.encoder = ConvNextV2Encoder(config)
351
+
352
+ # final layernorm layer
353
+ self.layernorm = nn.LayerNorm(config.hidden_sizes[-1], eps=config.layer_norm_eps)
354
+
355
+ # Initialize weights and apply final processing
356
+ self.post_init()
357
+
358
+ @add_start_docstrings_to_model_forward(CONVNEXTV2_INPUTS_DOCSTRING)
359
+ @add_code_sample_docstrings(
360
+ checkpoint=_CHECKPOINT_FOR_DOC,
361
+ output_type=BaseModelOutputWithPoolingAndNoAttention,
362
+ config_class=_CONFIG_FOR_DOC,
363
+ modality="vision",
364
+ expected_output=_EXPECTED_OUTPUT_SHAPE,
365
+ )
366
+ def forward(
367
+ self,
368
+ pixel_values: torch.FloatTensor = None,
369
+ output_hidden_states: Optional[bool] = None,
370
+ return_dict: Optional[bool] = None,
371
+ ) -> Union[Tuple, BaseModelOutputWithPoolingAndNoAttention]:
372
+ output_hidden_states = (
373
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
374
+ )
375
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
376
+
377
+ if pixel_values is None:
378
+ raise ValueError("You have to specify pixel_values")
379
+
380
+ embedding_output = self.embeddings(pixel_values)
381
+
382
+ encoder_outputs = self.encoder(
383
+ embedding_output,
384
+ output_hidden_states=output_hidden_states,
385
+ return_dict=return_dict,
386
+ )
387
+
388
+ last_hidden_state = encoder_outputs[0]
389
+
390
+ # global average pooling, (N, C, H, W) -> (N, C)
391
+ pooled_output = self.layernorm(last_hidden_state.mean([-2, -1]))
392
+
393
+ if not return_dict:
394
+ return (last_hidden_state, pooled_output) + encoder_outputs[1:]
395
+
396
+ return BaseModelOutputWithPoolingAndNoAttention(
397
+ last_hidden_state=last_hidden_state,
398
+ pooler_output=pooled_output,
399
+ hidden_states=encoder_outputs.hidden_states,
400
+ )
401
+
402
+
403
+ @add_start_docstrings(
404
+ """
405
+ ConvNextV2 Model with an image classification head on top (a linear layer on top of the pooled features), e.g. for
406
+ ImageNet.
407
+ """,
408
+ CONVNEXTV2_START_DOCSTRING,
409
+ )
410
+ # Copied from transformers.models.convnext.modeling_convnext.ConvNextForImageClassification with CONVNEXT->CONVNEXTV2,ConvNext->ConvNextV2,convnext->convnextv2
411
+ class ConvNextV2ForImageClassification(ConvNextV2PreTrainedModel):
412
+ def __init__(self, config):
413
+ super().__init__(config)
414
+
415
+ self.num_labels = config.num_labels
416
+ self.convnextv2 = ConvNextV2Model(config)
417
+
418
+ # Classifier head
419
+ self.classifier = (
420
+ nn.Linear(config.hidden_sizes[-1], config.num_labels) if config.num_labels > 0 else nn.Identity()
421
+ )
422
+
423
+ # Initialize weights and apply final processing
424
+ self.post_init()
425
+
426
+ @add_start_docstrings_to_model_forward(CONVNEXTV2_INPUTS_DOCSTRING)
427
+ @add_code_sample_docstrings(
428
+ checkpoint=_IMAGE_CLASS_CHECKPOINT,
429
+ output_type=ImageClassifierOutputWithNoAttention,
430
+ config_class=_CONFIG_FOR_DOC,
431
+ expected_output=_IMAGE_CLASS_EXPECTED_OUTPUT,
432
+ )
433
+ def forward(
434
+ self,
435
+ pixel_values: torch.FloatTensor = None,
436
+ labels: Optional[torch.LongTensor] = None,
437
+ output_hidden_states: Optional[bool] = None,
438
+ return_dict: Optional[bool] = None,
439
+ ) -> Union[Tuple, ImageClassifierOutputWithNoAttention]:
440
+ r"""
441
+ labels (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
442
+ Labels for computing the image classification/regression loss. Indices should be in `[0, ...,
443
+ config.num_labels - 1]`. If `config.num_labels == 1` a regression loss is computed (Mean-Square loss), If
444
+ `config.num_labels > 1` a classification loss is computed (Cross-Entropy).
445
+ """
446
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
447
+
448
+ outputs = self.convnextv2(pixel_values, output_hidden_states=output_hidden_states, return_dict=return_dict)
449
+
450
+ pooled_output = outputs.pooler_output if return_dict else outputs[1]
451
+
452
+ logits = self.classifier(pooled_output)
453
+
454
+ loss = None
455
+ if labels is not None:
456
+ if self.config.problem_type is None:
457
+ if self.num_labels == 1:
458
+ self.config.problem_type = "regression"
459
+ elif self.num_labels > 1 and (labels.dtype == torch.long or labels.dtype == torch.int):
460
+ self.config.problem_type = "single_label_classification"
461
+ else:
462
+ self.config.problem_type = "multi_label_classification"
463
+
464
+ if self.config.problem_type == "regression":
465
+ loss_fct = MSELoss()
466
+ if self.num_labels == 1:
467
+ loss = loss_fct(logits.squeeze(), labels.squeeze())
468
+ else:
469
+ loss = loss_fct(logits, labels)
470
+ elif self.config.problem_type == "single_label_classification":
471
+ loss_fct = CrossEntropyLoss()
472
+ loss = loss_fct(logits.view(-1, self.num_labels), labels.view(-1))
473
+ elif self.config.problem_type == "multi_label_classification":
474
+ loss_fct = BCEWithLogitsLoss()
475
+ loss = loss_fct(logits, labels)
476
+ if not return_dict:
477
+ output = (logits,) + outputs[2:]
478
+ return ((loss,) + output) if loss is not None else output
479
+
480
+ return ImageClassifierOutputWithNoAttention(
481
+ loss=loss,
482
+ logits=logits,
483
+ hidden_states=outputs.hidden_states,
484
+ )
485
+
486
+
487
+ @add_start_docstrings(
488
+ """
489
+ ConvNeXT V2 backbone, to be used with frameworks like DETR and MaskFormer.
490
+ """,
491
+ CONVNEXTV2_START_DOCSTRING,
492
+ )
493
+ # Copied from transformers.models.convnext.modeling_convnext.ConvNextBackbone with CONVNEXT->CONVNEXTV2,ConvNext->ConvNextV2,facebook/convnext-tiny-224->facebook/convnextv2-tiny-1k-224
494
+ class ConvNextV2Backbone(ConvNextV2PreTrainedModel, BackboneMixin):
495
+ def __init__(self, config):
496
+ super().__init__(config)
497
+ super()._init_backbone(config)
498
+
499
+ self.embeddings = ConvNextV2Embeddings(config)
500
+ self.encoder = ConvNextV2Encoder(config)
501
+ self.num_features = [config.hidden_sizes[0]] + config.hidden_sizes
502
+
503
+ # Add layer norms to hidden states of out_features
504
+ hidden_states_norms = {}
505
+ for stage, num_channels in zip(self._out_features, self.channels):
506
+ hidden_states_norms[stage] = ConvNextV2LayerNorm(num_channels, data_format="channels_first")
507
+ self.hidden_states_norms = nn.ModuleDict(hidden_states_norms)
508
+
509
+ # initialize weights and apply final processing
510
+ self.post_init()
511
+
512
+ @add_start_docstrings_to_model_forward(CONVNEXTV2_INPUTS_DOCSTRING)
513
+ @replace_return_docstrings(output_type=BackboneOutput, config_class=_CONFIG_FOR_DOC)
514
+ def forward(
515
+ self,
516
+ pixel_values: torch.Tensor,
517
+ output_hidden_states: Optional[bool] = None,
518
+ return_dict: Optional[bool] = None,
519
+ ) -> BackboneOutput:
520
+ """
521
+ Returns:
522
+
523
+ Examples:
524
+
525
+ ```python
526
+ >>> from transformers import AutoImageProcessor, AutoBackbone
527
+ >>> import torch
528
+ >>> from PIL import Image
529
+ >>> import requests
530
+
531
+ >>> url = "http://images.cocodataset.org/val2017/000000039769.jpg"
532
+ >>> image = Image.open(requests.get(url, stream=True).raw)
533
+
534
+ >>> processor = AutoImageProcessor.from_pretrained("facebook/convnextv2-tiny-1k-224")
535
+ >>> model = AutoBackbone.from_pretrained("facebook/convnextv2-tiny-1k-224")
536
+
537
+ >>> inputs = processor(image, return_tensors="pt")
538
+ >>> outputs = model(**inputs)
539
+ ```"""
540
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
541
+ output_hidden_states = (
542
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
543
+ )
544
+
545
+ embedding_output = self.embeddings(pixel_values)
546
+
547
+ outputs = self.encoder(
548
+ embedding_output,
549
+ output_hidden_states=True,
550
+ return_dict=return_dict,
551
+ )
552
+
553
+ hidden_states = outputs.hidden_states if return_dict else outputs[1]
554
+
555
+ feature_maps = ()
556
+ for stage, hidden_state in zip(self.stage_names, hidden_states):
557
+ if stage in self.out_features:
558
+ hidden_state = self.hidden_states_norms[stage](hidden_state)
559
+ feature_maps += (hidden_state,)
560
+
561
+ if not return_dict:
562
+ output = (feature_maps,)
563
+ if output_hidden_states:
564
+ output += (hidden_states,)
565
+ return output
566
+
567
+ return BackboneOutput(
568
+ feature_maps=feature_maps,
569
+ hidden_states=hidden_states if output_hidden_states else None,
570
+ attentions=None,
571
+ )
572
+
573
+
574
+ __all__ = ["ConvNextV2ForImageClassification", "ConvNextV2Model", "ConvNextV2PreTrainedModel", "ConvNextV2Backbone"]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/convnextv2/modeling_tf_convnextv2.py ADDED
@@ -0,0 +1,683 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2023 Meta Platforms Inc. and The HuggingFace Inc. team. All rights reserved.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """TF 2.0 ConvNextV2 model."""
16
+
17
+ from __future__ import annotations
18
+
19
+ from typing import List, Optional, Tuple, Union
20
+
21
+ import numpy as np
22
+ import tensorflow as tf
23
+
24
+ from ...activations_tf import get_tf_activation
25
+ from ...modeling_tf_outputs import (
26
+ TFBaseModelOutputWithNoAttention,
27
+ TFBaseModelOutputWithPooling,
28
+ TFBaseModelOutputWithPoolingAndNoAttention,
29
+ TFImageClassifierOutputWithNoAttention,
30
+ )
31
+ from ...modeling_tf_utils import (
32
+ TFModelInputType,
33
+ TFPreTrainedModel,
34
+ TFSequenceClassificationLoss,
35
+ get_initializer,
36
+ keras,
37
+ keras_serializable,
38
+ unpack_inputs,
39
+ )
40
+ from ...tf_utils import shape_list
41
+ from ...utils import (
42
+ add_code_sample_docstrings,
43
+ add_start_docstrings,
44
+ add_start_docstrings_to_model_forward,
45
+ logging,
46
+ )
47
+ from .configuration_convnextv2 import ConvNextV2Config
48
+
49
+
50
+ logger = logging.get_logger(__name__)
51
+
52
+ # General docstring
53
+ _CONFIG_FOR_DOC = "ConvNextV2Config"
54
+
55
+ # Base docstring
56
+ _CHECKPOINT_FOR_DOC = "facebook/convnextv2-tiny-1k-224"
57
+ _EXPECTED_OUTPUT_SHAPE = [1, 768, 7, 7]
58
+
59
+ # Image classification docstring
60
+ _IMAGE_CLASS_CHECKPOINT = "facebook/convnextv2-tiny-1k-224"
61
+ _IMAGE_CLASS_EXPECTED_OUTPUT = "tabby, tabby cat"
62
+
63
+
64
+ # Copied from transformers.models.convnext.modeling_tf_convnext.TFConvNextDropPath with ConvNext->ConvNextV2
65
+ class TFConvNextV2DropPath(keras.layers.Layer):
66
+ """Drop paths (Stochastic Depth) per sample (when applied in main path of residual blocks).
67
+ References:
68
+ (1) github.com:rwightman/pytorch-image-models
69
+ """
70
+
71
+ def __init__(self, drop_path: float, **kwargs):
72
+ super().__init__(**kwargs)
73
+ self.drop_path = drop_path
74
+
75
+ def call(self, x: tf.Tensor, training=None):
76
+ if training:
77
+ keep_prob = 1 - self.drop_path
78
+ shape = (tf.shape(x)[0],) + (1,) * (len(tf.shape(x)) - 1)
79
+ random_tensor = keep_prob + tf.random.uniform(shape, 0, 1)
80
+ random_tensor = tf.floor(random_tensor)
81
+ return (x / keep_prob) * random_tensor
82
+ return x
83
+
84
+
85
+ class TFConvNextV2GRN(keras.layers.Layer):
86
+ """GRN (Global Response Normalization) layer"""
87
+
88
+ def __init__(self, config: ConvNextV2Config, dim: int, **kwargs):
89
+ super().__init__(**kwargs)
90
+ self.dim = dim
91
+
92
+ def build(self, input_shape: tf.TensorShape = None):
93
+ # PT's `nn.Parameters` must be mapped to a TF layer weight to inherit the same name hierarchy (and vice-versa)
94
+ self.weight = self.add_weight(
95
+ name="weight",
96
+ shape=(1, 1, 1, self.dim),
97
+ initializer=keras.initializers.Zeros(),
98
+ )
99
+ self.bias = self.add_weight(
100
+ name="bias",
101
+ shape=(1, 1, 1, self.dim),
102
+ initializer=keras.initializers.Zeros(),
103
+ )
104
+ return super().build(input_shape)
105
+
106
+ def call(self, hidden_states: tf.Tensor):
107
+ global_features = tf.norm(hidden_states, ord="euclidean", axis=(1, 2), keepdims=True)
108
+ norm_features = global_features / (tf.reduce_mean(global_features, axis=-1, keepdims=True) + 1e-6)
109
+ hidden_states = self.weight * (hidden_states * norm_features) + self.bias + hidden_states
110
+ return hidden_states
111
+
112
+
113
+ # Copied from transformers.models.convnext.modeling_tf_convnext.TFConvNextEmbeddings with ConvNext->ConvNextV2
114
+ class TFConvNextV2Embeddings(keras.layers.Layer):
115
+ """This class is comparable to (and inspired by) the SwinEmbeddings class
116
+ found in src/transformers/models/swin/modeling_swin.py.
117
+ """
118
+
119
+ def __init__(self, config: ConvNextV2Config, **kwargs):
120
+ super().__init__(**kwargs)
121
+ self.patch_embeddings = keras.layers.Conv2D(
122
+ filters=config.hidden_sizes[0],
123
+ kernel_size=config.patch_size,
124
+ strides=config.patch_size,
125
+ name="patch_embeddings",
126
+ kernel_initializer=get_initializer(config.initializer_range),
127
+ bias_initializer=keras.initializers.Zeros(),
128
+ )
129
+ self.layernorm = keras.layers.LayerNormalization(epsilon=1e-6, name="layernorm")
130
+ self.num_channels = config.num_channels
131
+ self.config = config
132
+
133
+ def call(self, pixel_values):
134
+ if isinstance(pixel_values, dict):
135
+ pixel_values = pixel_values["pixel_values"]
136
+
137
+ tf.debugging.assert_equal(
138
+ shape_list(pixel_values)[1],
139
+ self.num_channels,
140
+ message="Make sure that the channel dimension of the pixel values match with the one set in the configuration.",
141
+ )
142
+
143
+ # When running on CPU, `keras.layers.Conv2D` doesn't support `NCHW` format.
144
+ # So change the input format from `NCHW` to `NHWC`.
145
+ # shape = (batch_size, in_height, in_width, in_channels)
146
+ pixel_values = tf.transpose(pixel_values, perm=(0, 2, 3, 1))
147
+
148
+ embeddings = self.patch_embeddings(pixel_values)
149
+ embeddings = self.layernorm(embeddings)
150
+ return embeddings
151
+
152
+ def build(self, input_shape=None):
153
+ if self.built:
154
+ return
155
+ self.built = True
156
+ if getattr(self, "patch_embeddings", None) is not None:
157
+ with tf.name_scope(self.patch_embeddings.name):
158
+ self.patch_embeddings.build([None, None, None, self.config.num_channels])
159
+ if getattr(self, "layernorm", None) is not None:
160
+ with tf.name_scope(self.layernorm.name):
161
+ self.layernorm.build([None, None, None, self.config.hidden_sizes[0]])
162
+
163
+
164
+ class TFConvNextV2Layer(keras.layers.Layer):
165
+ """This corresponds to the `Block` class in the original implementation.
166
+
167
+ There are two equivalent implementations: [DwConv, LayerNorm (channels_first), Conv, GELU,1x1 Conv]; all in (N, C,
168
+ H, W) (2) [DwConv, Permute to (N, H, W, C), LayerNorm (channels_last), Linear, GELU, Linear]; Permute back
169
+
170
+ The authors used (2) as they find it slightly faster in PyTorch. Since we already permuted the inputs to follow
171
+ NHWC ordering, we can just apply the operations straight-away without the permutation.
172
+
173
+ Args:
174
+ config (`ConvNextV2Config`):
175
+ Model configuration class.
176
+ dim (`int`):
177
+ Number of input channels.
178
+ drop_path (`float`, *optional*, defaults to 0.0):
179
+ Stochastic depth rate.
180
+ """
181
+
182
+ def __init__(self, config: ConvNextV2Config, dim: int, drop_path: float = 0.0, **kwargs):
183
+ super().__init__(**kwargs)
184
+ self.dim = dim
185
+ self.config = config
186
+ self.dwconv = keras.layers.Conv2D(
187
+ filters=dim,
188
+ kernel_size=7,
189
+ padding="same",
190
+ groups=dim,
191
+ kernel_initializer=get_initializer(config.initializer_range),
192
+ bias_initializer=keras.initializers.Zeros(),
193
+ name="dwconv",
194
+ ) # depthwise conv
195
+ self.layernorm = keras.layers.LayerNormalization(
196
+ epsilon=1e-6,
197
+ name="layernorm",
198
+ )
199
+ self.pwconv1 = keras.layers.Dense(
200
+ units=4 * dim,
201
+ kernel_initializer=get_initializer(config.initializer_range),
202
+ bias_initializer=keras.initializers.Zeros(),
203
+ name="pwconv1",
204
+ ) # pointwise/1x1 convs, implemented with linear layers
205
+ self.act = get_tf_activation(config.hidden_act)
206
+ self.grn = TFConvNextV2GRN(config, 4 * dim, dtype=tf.float32, name="grn")
207
+ self.pwconv2 = keras.layers.Dense(
208
+ units=dim,
209
+ kernel_initializer=get_initializer(config.initializer_range),
210
+ bias_initializer=keras.initializers.Zeros(),
211
+ name="pwconv2",
212
+ )
213
+ # Using `layers.Activation` instead of `tf.identity` to better control `training`
214
+ # behaviour.
215
+ self.drop_path = (
216
+ TFConvNextV2DropPath(drop_path, name="drop_path")
217
+ if drop_path > 0.0
218
+ else keras.layers.Activation("linear", name="drop_path")
219
+ )
220
+
221
+ def call(self, hidden_states, training=False):
222
+ input = hidden_states
223
+ x = self.dwconv(hidden_states)
224
+ x = self.layernorm(x)
225
+ x = self.pwconv1(x)
226
+ x = self.act(x)
227
+ x = self.grn(x)
228
+ x = self.pwconv2(x)
229
+ x = self.drop_path(x, training=training)
230
+ x = input + x
231
+ return x
232
+
233
+ def build(self, input_shape=None):
234
+ if self.built:
235
+ return
236
+ self.built = True
237
+ if getattr(self, "dwconv", None) is not None:
238
+ with tf.name_scope(self.dwconv.name):
239
+ self.dwconv.build([None, None, None, self.dim])
240
+ if getattr(self, "layernorm", None) is not None:
241
+ with tf.name_scope(self.layernorm.name):
242
+ self.layernorm.build([None, None, None, self.dim])
243
+ if getattr(self, "pwconv1", None) is not None:
244
+ with tf.name_scope(self.pwconv1.name):
245
+ self.pwconv1.build([None, None, self.dim])
246
+ if getattr(self, "grn", None) is not None:
247
+ with tf.name_scope(self.grn.name):
248
+ self.grn.build(None)
249
+ if getattr(self, "pwconv2", None) is not None:
250
+ with tf.name_scope(self.pwconv2.name):
251
+ self.pwconv2.build([None, None, 4 * self.dim])
252
+ if getattr(self, "drop_path", None) is not None:
253
+ with tf.name_scope(self.drop_path.name):
254
+ self.drop_path.build(None)
255
+
256
+
257
+ # Copied from transformers.models.convnext.modeling_tf_convnext.TFConvNextStage with ConvNext->ConvNextV2
258
+ class TFConvNextV2Stage(keras.layers.Layer):
259
+ """ConvNextV2 stage, consisting of an optional downsampling layer + multiple residual blocks.
260
+
261
+ Args:
262
+ config (`ConvNextV2V2Config`):
263
+ Model configuration class.
264
+ in_channels (`int`):
265
+ Number of input channels.
266
+ out_channels (`int`):
267
+ Number of output channels.
268
+ depth (`int`):
269
+ Number of residual blocks.
270
+ drop_path_rates(`List[float]`):
271
+ Stochastic depth rates for each layer.
272
+ """
273
+
274
+ def __init__(
275
+ self,
276
+ config: ConvNextV2Config,
277
+ in_channels: int,
278
+ out_channels: int,
279
+ kernel_size: int = 2,
280
+ stride: int = 2,
281
+ depth: int = 2,
282
+ drop_path_rates: Optional[List[float]] = None,
283
+ **kwargs,
284
+ ):
285
+ super().__init__(**kwargs)
286
+ if in_channels != out_channels or stride > 1:
287
+ self.downsampling_layer = [
288
+ keras.layers.LayerNormalization(
289
+ epsilon=1e-6,
290
+ name="downsampling_layer.0",
291
+ ),
292
+ # Inputs to this layer will follow NHWC format since we
293
+ # transposed the inputs from NCHW to NHWC in the `TFConvNextV2Embeddings`
294
+ # layer. All the outputs throughout the model will be in NHWC
295
+ # from this point on until the output where we again change to
296
+ # NCHW.
297
+ keras.layers.Conv2D(
298
+ filters=out_channels,
299
+ kernel_size=kernel_size,
300
+ strides=stride,
301
+ kernel_initializer=get_initializer(config.initializer_range),
302
+ bias_initializer=keras.initializers.Zeros(),
303
+ name="downsampling_layer.1",
304
+ ),
305
+ ]
306
+ else:
307
+ self.downsampling_layer = [tf.identity]
308
+
309
+ drop_path_rates = drop_path_rates or [0.0] * depth
310
+ self.layers = [
311
+ TFConvNextV2Layer(
312
+ config,
313
+ dim=out_channels,
314
+ drop_path=drop_path_rates[j],
315
+ name=f"layers.{j}",
316
+ )
317
+ for j in range(depth)
318
+ ]
319
+ self.in_channels = in_channels
320
+ self.out_channels = out_channels
321
+ self.stride = stride
322
+
323
+ def call(self, hidden_states):
324
+ for layer in self.downsampling_layer:
325
+ hidden_states = layer(hidden_states)
326
+ for layer in self.layers:
327
+ hidden_states = layer(hidden_states)
328
+ return hidden_states
329
+
330
+ def build(self, input_shape=None):
331
+ if self.built:
332
+ return
333
+ self.built = True
334
+ if getattr(self, "layers", None) is not None:
335
+ for layer in self.layers:
336
+ with tf.name_scope(layer.name):
337
+ layer.build(None)
338
+ if self.in_channels != self.out_channels or self.stride > 1:
339
+ with tf.name_scope(self.downsampling_layer[0].name):
340
+ self.downsampling_layer[0].build([None, None, None, self.in_channels])
341
+ with tf.name_scope(self.downsampling_layer[1].name):
342
+ self.downsampling_layer[1].build([None, None, None, self.in_channels])
343
+
344
+
345
+ class TFConvNextV2Encoder(keras.layers.Layer):
346
+ def __init__(self, config: ConvNextV2Config, **kwargs):
347
+ super().__init__(**kwargs)
348
+ self.stages = []
349
+ drop_path_rates = tf.linspace(0.0, config.drop_path_rate, sum(config.depths))
350
+ drop_path_rates = tf.split(drop_path_rates, config.depths)
351
+ drop_path_rates = [x.numpy().tolist() for x in drop_path_rates]
352
+ prev_chs = config.hidden_sizes[0]
353
+ for i in range(config.num_stages):
354
+ out_chs = config.hidden_sizes[i]
355
+ stage = TFConvNextV2Stage(
356
+ config,
357
+ in_channels=prev_chs,
358
+ out_channels=out_chs,
359
+ stride=2 if i > 0 else 1,
360
+ depth=config.depths[i],
361
+ drop_path_rates=drop_path_rates[i],
362
+ name=f"stages.{i}",
363
+ )
364
+ self.stages.append(stage)
365
+ prev_chs = out_chs
366
+
367
+ def call(
368
+ self,
369
+ hidden_states: tf.Tensor,
370
+ output_hidden_states: Optional[bool] = False,
371
+ return_dict: Optional[bool] = True,
372
+ ) -> Union[Tuple, TFBaseModelOutputWithNoAttention]:
373
+ all_hidden_states = () if output_hidden_states else None
374
+
375
+ for i, layer_module in enumerate(self.stages):
376
+ if output_hidden_states:
377
+ all_hidden_states = all_hidden_states + (hidden_states,)
378
+
379
+ hidden_states = layer_module(hidden_states)
380
+
381
+ if output_hidden_states:
382
+ all_hidden_states = all_hidden_states + (hidden_states,)
383
+
384
+ if not return_dict:
385
+ return tuple(v for v in [hidden_states, all_hidden_states] if v is not None)
386
+
387
+ return TFBaseModelOutputWithNoAttention(last_hidden_state=hidden_states, hidden_states=all_hidden_states)
388
+
389
+ def build(self, input_shape=None):
390
+ for stage in self.stages:
391
+ with tf.name_scope(stage.name):
392
+ stage.build(None)
393
+
394
+
395
+ @keras_serializable
396
+ class TFConvNextV2MainLayer(keras.layers.Layer):
397
+ config_class = ConvNextV2Config
398
+
399
+ def __init__(self, config: ConvNextV2Config, **kwargs):
400
+ super().__init__(**kwargs)
401
+
402
+ self.config = config
403
+ self.embeddings = TFConvNextV2Embeddings(config, name="embeddings")
404
+ self.encoder = TFConvNextV2Encoder(config, name="encoder")
405
+ self.layernorm = keras.layers.LayerNormalization(epsilon=config.layer_norm_eps, name="layernorm")
406
+ # We are setting the `data_format` like so because from here on we will revert to the
407
+ # NCHW output format
408
+ self.pooler = keras.layers.GlobalAvgPool2D(data_format="channels_last")
409
+
410
+ @unpack_inputs
411
+ def call(
412
+ self,
413
+ pixel_values: TFModelInputType | None = None,
414
+ output_hidden_states: Optional[bool] = None,
415
+ return_dict: Optional[bool] = None,
416
+ training: bool = False,
417
+ ) -> Union[TFBaseModelOutputWithPooling, Tuple[tf.Tensor]]:
418
+ output_hidden_states = (
419
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
420
+ )
421
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
422
+
423
+ if pixel_values is None:
424
+ raise ValueError("You have to specify pixel_values")
425
+
426
+ embedding_output = self.embeddings(pixel_values, training=training)
427
+
428
+ encoder_outputs = self.encoder(
429
+ embedding_output,
430
+ output_hidden_states=output_hidden_states,
431
+ return_dict=return_dict,
432
+ training=training,
433
+ )
434
+
435
+ last_hidden_state = encoder_outputs[0]
436
+
437
+ # Change to NCHW output format have uniformity in the modules
438
+ pooled_output = self.pooler(last_hidden_state)
439
+ last_hidden_state = tf.transpose(last_hidden_state, perm=(0, 3, 1, 2))
440
+ pooled_output = self.layernorm(pooled_output)
441
+
442
+ # Change the other hidden state outputs to NCHW as well
443
+ if output_hidden_states:
444
+ hidden_states = tuple([tf.transpose(h, perm=(0, 3, 1, 2)) for h in encoder_outputs[1]])
445
+
446
+ if not return_dict:
447
+ hidden_states = hidden_states if output_hidden_states else ()
448
+ return (last_hidden_state, pooled_output) + hidden_states
449
+
450
+ return TFBaseModelOutputWithPoolingAndNoAttention(
451
+ last_hidden_state=last_hidden_state,
452
+ pooler_output=pooled_output,
453
+ hidden_states=hidden_states if output_hidden_states else encoder_outputs.hidden_states,
454
+ )
455
+
456
+ def build(self, input_shape=None):
457
+ if self.built:
458
+ return
459
+ self.built = True
460
+ if getattr(self, "embeddings", None) is not None:
461
+ with tf.name_scope(self.embeddings.name):
462
+ self.embeddings.build(None)
463
+ if getattr(self, "encoder", None) is not None:
464
+ with tf.name_scope(self.encoder.name):
465
+ self.encoder.build(None)
466
+ if getattr(self, "layernorm", None) is not None:
467
+ with tf.name_scope(self.layernorm.name):
468
+ self.layernorm.build([None, self.config.hidden_sizes[-1]])
469
+
470
+
471
+ class TFConvNextV2PreTrainedModel(TFPreTrainedModel):
472
+ """
473
+ An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained
474
+ models.
475
+ """
476
+
477
+ config_class = ConvNextV2Config
478
+ base_model_prefix = "convnextv2"
479
+ main_input_name = "pixel_values"
480
+
481
+
482
+ CONVNEXTV2_START_DOCSTRING = r"""
483
+ This model inherits from [`TFPreTrainedModel`]. Check the superclass documentation for the generic methods the
484
+ library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads
485
+ etc.)
486
+
487
+ This model is also a [keras.Model](https://www.tensorflow.org/api_docs/python/tf/keras/Model) subclass. Use it
488
+ as a regular TF 2.0 Keras Model and refer to the TF 2.0 documentation for all matter related to general usage and
489
+ behavior.
490
+
491
+ <Tip>
492
+
493
+ TensorFlow models and layers in `transformers` accept two formats as input:
494
+
495
+ - having all inputs as keyword arguments (like PyTorch models), or
496
+ - having all inputs as a list, tuple or dict in the first positional argument.
497
+
498
+ The reason the second format is supported is that Keras methods prefer this format when passing inputs to models
499
+ and layers. Because of this support, when using methods like `model.fit()` things should "just work" for you - just
500
+ pass your inputs and labels in any format that `model.fit()` supports! If, however, you want to use the second
501
+ format outside of Keras methods like `fit()` and `predict()`, such as when creating your own layers or models with
502
+ the Keras `Functional` API, there are three possibilities you can use to gather all the input Tensors in the first
503
+ positional argument:
504
+
505
+ - a single Tensor with `pixel_values` only and nothing else: `model(pixel_values)`
506
+ - a list of varying length with one or several input Tensors IN THE ORDER given in the docstring:
507
+ `model([pixel_values, attention_mask])` or `model([pixel_values, attention_mask, token_type_ids])`
508
+ - a dictionary with one or several input Tensors associated to the input names given in the docstring:
509
+ `model({"pixel_values": pixel_values, "token_type_ids": token_type_ids})`
510
+
511
+ Note that when creating models and layers with
512
+ [subclassing](https://keras.io/guides/making_new_layers_and_models_via_subclassing/) then you don't need to worry
513
+ about any of this, as you can just pass inputs like you would to any other Python function!
514
+
515
+ </Tip>
516
+
517
+ Parameters:
518
+ config ([`ConvNextV2Config`]): Model configuration class with all the parameters of the model.
519
+ Initializing with a config file does not load the weights associated with the model, only the
520
+ configuration. Check out the [`~TFPreTrainedModel.from_pretrained`] method to load the model weights.
521
+ """
522
+
523
+ CONVNEXTV2_INPUTS_DOCSTRING = r"""
524
+ Args:
525
+ pixel_values (`np.ndarray`, `tf.Tensor`, `List[tf.Tensor]`, `Dict[str, tf.Tensor]` or `Dict[str, np.ndarray]` and each example must have the shape `(batch_size, num_channels, height, width)`):
526
+ Pixel values. Pixel values can be obtained using [`AutoImageProcessor`]. See
527
+ [`ConvNextImageProcessor.__call__`] for details.
528
+
529
+ output_hidden_states (`bool`, *optional*):
530
+ Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
531
+ more detail. This argument can be used only in eager mode, in graph mode the value in the config will be
532
+ used instead.
533
+ return_dict (`bool`, *optional*):
534
+ Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. This argument can be used in
535
+ eager mode, in graph mode the value will always be set to `True`.
536
+ """
537
+
538
+
539
+ @add_start_docstrings(
540
+ "The bare ConvNextV2 model outputting raw features without any specific head on top.",
541
+ CONVNEXTV2_START_DOCSTRING,
542
+ )
543
+ class TFConvNextV2Model(TFConvNextV2PreTrainedModel):
544
+ def __init__(self, config: ConvNextV2Config, *inputs, **kwargs):
545
+ super().__init__(config, *inputs, **kwargs)
546
+ self.convnextv2 = TFConvNextV2MainLayer(config, name="convnextv2")
547
+
548
+ @unpack_inputs
549
+ @add_start_docstrings_to_model_forward(CONVNEXTV2_INPUTS_DOCSTRING)
550
+ @add_code_sample_docstrings(
551
+ checkpoint=_CHECKPOINT_FOR_DOC,
552
+ output_type=TFBaseModelOutputWithPoolingAndNoAttention,
553
+ config_class=_CONFIG_FOR_DOC,
554
+ modality="vision",
555
+ expected_output=_EXPECTED_OUTPUT_SHAPE,
556
+ )
557
+ def call(
558
+ self,
559
+ pixel_values: TFModelInputType | None = None,
560
+ output_hidden_states: Optional[bool] = None,
561
+ return_dict: Optional[bool] = None,
562
+ training: bool = False,
563
+ ) -> Union[TFBaseModelOutputWithPoolingAndNoAttention, Tuple[tf.Tensor]]:
564
+ output_hidden_states = (
565
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
566
+ )
567
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
568
+
569
+ if pixel_values is None:
570
+ raise ValueError("You have to specify pixel_values")
571
+
572
+ outputs = self.convnextv2(
573
+ pixel_values=pixel_values,
574
+ output_hidden_states=output_hidden_states,
575
+ return_dict=return_dict,
576
+ training=training,
577
+ )
578
+
579
+ if not return_dict:
580
+ return outputs[:]
581
+
582
+ return TFBaseModelOutputWithPoolingAndNoAttention(
583
+ last_hidden_state=outputs.last_hidden_state,
584
+ pooler_output=outputs.pooler_output,
585
+ hidden_states=outputs.hidden_states,
586
+ )
587
+
588
+ def build(self, input_shape=None):
589
+ if self.built:
590
+ return
591
+ self.built = True
592
+ if getattr(self, "convnextv2", None) is not None:
593
+ with tf.name_scope(self.convnextv2.name):
594
+ self.convnextv2.build(None)
595
+
596
+
597
+ @add_start_docstrings(
598
+ """
599
+ ConvNextV2 Model with an image classification head on top (a linear layer on top of the pooled features), e.g. for
600
+ ImageNet.
601
+ """,
602
+ CONVNEXTV2_START_DOCSTRING,
603
+ )
604
+ class TFConvNextV2ForImageClassification(TFConvNextV2PreTrainedModel, TFSequenceClassificationLoss):
605
+ def __init__(self, config: ConvNextV2Config, *inputs, **kwargs):
606
+ super().__init__(config, *inputs, **kwargs)
607
+
608
+ self.num_labels = config.num_labels
609
+ self.convnextv2 = TFConvNextV2MainLayer(config, name="convnextv2")
610
+
611
+ # Classifier head
612
+ self.classifier = keras.layers.Dense(
613
+ units=config.num_labels,
614
+ kernel_initializer=get_initializer(config.initializer_range),
615
+ bias_initializer=keras.initializers.Zeros(),
616
+ name="classifier",
617
+ )
618
+
619
+ @unpack_inputs
620
+ @add_start_docstrings_to_model_forward(CONVNEXTV2_INPUTS_DOCSTRING)
621
+ @add_code_sample_docstrings(
622
+ checkpoint=_IMAGE_CLASS_CHECKPOINT,
623
+ output_type=TFImageClassifierOutputWithNoAttention,
624
+ config_class=_CONFIG_FOR_DOC,
625
+ expected_output=_IMAGE_CLASS_EXPECTED_OUTPUT,
626
+ )
627
+ def call(
628
+ self,
629
+ pixel_values: TFModelInputType | None = None,
630
+ output_hidden_states: Optional[bool] = None,
631
+ return_dict: Optional[bool] = None,
632
+ labels: np.ndarray | tf.Tensor | None = None,
633
+ training: Optional[bool] = False,
634
+ ) -> Union[TFImageClassifierOutputWithNoAttention, Tuple[tf.Tensor]]:
635
+ r"""
636
+ labels (`tf.Tensor` or `np.ndarray` of shape `(batch_size,)`, *optional*):
637
+ Labels for computing the image classification/regression loss. Indices should be in `[0, ...,
638
+ config.num_labels - 1]`. If `config.num_labels == 1` a regression loss is computed (Mean-Square loss), If
639
+ `config.num_labels > 1` a classification loss is computed (Cross-Entropy).
640
+ """
641
+ output_hidden_states = (
642
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
643
+ )
644
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
645
+
646
+ if pixel_values is None:
647
+ raise ValueError("You have to specify pixel_values")
648
+
649
+ outputs = self.convnextv2(
650
+ pixel_values,
651
+ output_hidden_states=output_hidden_states,
652
+ return_dict=return_dict,
653
+ training=training,
654
+ )
655
+
656
+ pooled_output = outputs.pooler_output if return_dict else outputs[1]
657
+
658
+ logits = self.classifier(pooled_output)
659
+ loss = None if labels is None else self.hf_compute_loss(labels=labels, logits=logits)
660
+
661
+ if not return_dict:
662
+ output = (logits,) + outputs[2:]
663
+ return ((loss,) + output) if loss is not None else output
664
+
665
+ return TFImageClassifierOutputWithNoAttention(
666
+ loss=loss,
667
+ logits=logits,
668
+ hidden_states=outputs.hidden_states,
669
+ )
670
+
671
+ def build(self, input_shape=None):
672
+ if self.built:
673
+ return
674
+ self.built = True
675
+ if getattr(self, "convnextv2", None) is not None:
676
+ with tf.name_scope(self.convnextv2.name):
677
+ self.convnextv2.build(None)
678
+ if getattr(self, "classifier", None) is not None:
679
+ with tf.name_scope(self.classifier.name):
680
+ self.classifier.build([None, None, self.config.hidden_sizes[-1]])
681
+
682
+
683
+ __all__ = ["TFConvNextV2ForImageClassification", "TFConvNextV2Model", "TFConvNextV2PreTrainedModel"]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/cpm/__init__.py ADDED
@@ -0,0 +1,27 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # Copyright 2024 The HuggingFace Team. All rights reserved.
2
+ #
3
+ # Licensed under the Apache License, Version 2.0 (the "License");
4
+ # you may not use this file except in compliance with the License.
5
+ # You may obtain a copy of the License at
6
+ #
7
+ # http://www.apache.org/licenses/LICENSE-2.0
8
+ #
9
+ # Unless required by applicable law or agreed to in writing, software
10
+ # distributed under the License is distributed on an "AS IS" BASIS,
11
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12
+ # See the License for the specific language governing permissions and
13
+ # limitations under the License.
14
+ from typing import TYPE_CHECKING
15
+
16
+ from ...utils import _LazyModule
17
+ from ...utils.import_utils import define_import_structure
18
+
19
+
20
+ if TYPE_CHECKING:
21
+ from .tokenization_cpm import *
22
+ from .tokenization_cpm_fast import *
23
+ else:
24
+ import sys
25
+
26
+ _file = globals()["__file__"]
27
+ sys.modules[__name__] = _LazyModule(__name__, _file, define_import_structure(_file), module_spec=__spec__)
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/cpm/tokenization_cpm.py ADDED
@@ -0,0 +1,348 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2018 The Google AI Language Team Authors and The HuggingFace Inc. team.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """Tokenization classes."""
16
+
17
+ import os
18
+ import unicodedata
19
+ from shutil import copyfile
20
+ from typing import Any, Dict, List, Optional, Tuple
21
+
22
+ import sentencepiece as spm
23
+
24
+ from ...tokenization_utils import AddedToken, PreTrainedTokenizer
25
+ from ...utils import SPIECE_UNDERLINE, logging
26
+
27
+
28
+ logger = logging.get_logger(__name__)
29
+
30
+ VOCAB_FILES_NAMES = {"vocab_file": "spiece.model"}
31
+
32
+
33
+ class CpmTokenizer(PreTrainedTokenizer):
34
+ """Runs pre-tokenization with Jieba segmentation tool. It is used in CPM models."""
35
+
36
+ vocab_files_names = VOCAB_FILES_NAMES
37
+
38
+ def __init__(
39
+ self,
40
+ vocab_file,
41
+ do_lower_case=False,
42
+ remove_space=True,
43
+ keep_accents=False,
44
+ bos_token="<s>",
45
+ eos_token="</s>",
46
+ unk_token="<unk>",
47
+ sep_token="<sep>",
48
+ pad_token="<pad>",
49
+ cls_token="<cls>",
50
+ mask_token="<mask>",
51
+ additional_special_tokens=["<eop>", "<eod>"],
52
+ sp_model_kwargs: Optional[Dict[str, Any]] = None,
53
+ **kwargs,
54
+ ) -> None:
55
+ """
56
+ Construct a CPM tokenizer. Based on [Jieba](https://pypi.org/project/jieba/) and
57
+ [SentencePiece](https://github.com/google/sentencepiece).
58
+
59
+ This tokenizer inherits from [`PreTrainedTokenizer`] which contains most of the main methods. Users should
60
+ refer to this superclass for more information regarding those methods.
61
+
62
+ Args:
63
+ vocab_file (`str`):
64
+ [SentencePiece](https://github.com/google/sentencepiece) file (generally has a .spm extension) that
65
+ contains the vocabulary necessary to instantiate a tokenizer.
66
+ do_lower_case (`bool`, *optional*, defaults to `True`):
67
+ Whether to lowercase the input when tokenizing.
68
+ remove_space (`bool`, *optional*, defaults to `True`):
69
+ Whether to strip the text when tokenizing (removing excess spaces before and after the string).
70
+ keep_accents (`bool`, *optional*, defaults to `False`):
71
+ Whether to keep accents when tokenizing.
72
+ bos_token (`str`, *optional*, defaults to `"<s>"`):
73
+ The beginning of sequence token that was used during pretraining. Can be used a sequence classifier
74
+ token.
75
+
76
+ <Tip>
77
+
78
+ When building a sequence using special tokens, this is not the token that is used for the beginning of
79
+ sequence. The token used is the `cls_token`.
80
+
81
+ </Tip>
82
+
83
+ eos_token (`str`, *optional*, defaults to `"</s>"`):
84
+ The end of sequence token.
85
+
86
+ <Tip>
87
+
88
+ When building a sequence using special tokens, this is not the token that is used for the end of
89
+ sequence. The token used is the `sep_token`.
90
+
91
+ </Tip>
92
+
93
+ unk_token (`str`, *optional*, defaults to `"<unk>"`):
94
+ The unknown token. A token that is not in the vocabulary cannot be converted to an ID and is set to be
95
+ this token instead.
96
+ sep_token (`str`, *optional*, defaults to `"<sep>"`):
97
+ The separator token, which is used when building a sequence from multiple sequences, e.g. two sequences
98
+ for sequence classification or for a text and a question for question answering. It is also used as the
99
+ last token of a sequence built with special tokens.
100
+ pad_token (`str`, *optional*, defaults to `"<pad>"`):
101
+ The token used for padding, for example when batching sequences of different lengths.
102
+ cls_token (`str`, *optional*, defaults to `"<cls>"`):
103
+ The classifier token which is used when doing sequence classification (classification of the whole
104
+ sequence instead of per-token classification). It is the first token of the sequence when built with
105
+ special tokens.
106
+ mask_token (`str`, *optional*, defaults to `"<mask>"`):
107
+ The token used for masking values. This is the token used when training this model with masked language
108
+ modeling. This is the token which the model will try to predict.
109
+ additional_special_tokens (`List[str]`, *optional*, defaults to `["<eop>", "<eod>"]`):
110
+ Additional special tokens used by the tokenizer.
111
+
112
+ Attributes:
113
+ sp_model (`SentencePieceProcessor`):
114
+ The *SentencePiece* processor that is used for every conversion (string, tokens and IDs).
115
+ """
116
+ # Mask token behave like a normal word, i.e. include the space before it
117
+ mask_token = AddedToken(mask_token, lstrip=True, rstrip=False) if isinstance(mask_token, str) else mask_token
118
+
119
+ self.sp_model_kwargs = {} if sp_model_kwargs is None else sp_model_kwargs
120
+
121
+ self.do_lower_case = do_lower_case
122
+ self.remove_space = remove_space
123
+ self.keep_accents = keep_accents
124
+ self.vocab_file = vocab_file
125
+
126
+ self.sp_model = spm.SentencePieceProcessor(**self.sp_model_kwargs)
127
+ self.sp_model.Load(vocab_file)
128
+
129
+ try:
130
+ import jieba
131
+ except ModuleNotFoundError as error:
132
+ raise error.__class__(
133
+ "You need to install jieba to use CpmTokenizer or CpmTokenizerFast. "
134
+ "See https://pypi.org/project/jieba/ for installation."
135
+ )
136
+ self.jieba = jieba
137
+ self.translator = str.maketrans(" \n", "\u2582\u2583")
138
+
139
+ super().__init__(
140
+ do_lower_case=do_lower_case,
141
+ remove_space=remove_space,
142
+ keep_accents=keep_accents,
143
+ bos_token=bos_token,
144
+ eos_token=eos_token,
145
+ unk_token=unk_token,
146
+ sep_token=sep_token,
147
+ pad_token=pad_token,
148
+ cls_token=cls_token,
149
+ mask_token=mask_token,
150
+ additional_special_tokens=additional_special_tokens,
151
+ sp_model_kwargs=self.sp_model_kwargs,
152
+ **kwargs,
153
+ )
154
+
155
+ self._pad_token_type_id = 3
156
+
157
+ @property
158
+ # Copied from transformers.models.xlnet.tokenization_xlnet.XLNetTokenizer.vocab_size
159
+ def vocab_size(self):
160
+ return len(self.sp_model)
161
+
162
+ # Copied from transformers.models.xlnet.tokenization_xlnet.XLNetTokenizer.get_vocab
163
+ def get_vocab(self):
164
+ vocab = {self.convert_ids_to_tokens(i): i for i in range(self.vocab_size)}
165
+ vocab.update(self.added_tokens_encoder)
166
+ return vocab
167
+
168
+ # Copied from transformers.models.xlnet.tokenization_xlnet.XLNetTokenizer.__getstate__
169
+ def __getstate__(self):
170
+ state = self.__dict__.copy()
171
+ state["sp_model"] = None
172
+ return state
173
+
174
+ # Copied from transformers.models.xlnet.tokenization_xlnet.XLNetTokenizer.__setstate__
175
+ def __setstate__(self, d):
176
+ self.__dict__ = d
177
+
178
+ # for backward compatibility
179
+ if not hasattr(self, "sp_model_kwargs"):
180
+ self.sp_model_kwargs = {}
181
+
182
+ self.sp_model = spm.SentencePieceProcessor(**self.sp_model_kwargs)
183
+ self.sp_model.Load(self.vocab_file)
184
+
185
+ # Copied from transformers.models.xlnet.tokenization_xlnet.XLNetTokenizer.preprocess_text
186
+ def preprocess_text(self, inputs):
187
+ if self.remove_space:
188
+ outputs = " ".join(inputs.strip().split())
189
+ else:
190
+ outputs = inputs
191
+ outputs = outputs.replace("``", '"').replace("''", '"')
192
+
193
+ if not self.keep_accents:
194
+ outputs = unicodedata.normalize("NFKD", outputs)
195
+ outputs = "".join([c for c in outputs if not unicodedata.combining(c)])
196
+ if self.do_lower_case:
197
+ outputs = outputs.lower()
198
+
199
+ return outputs
200
+
201
+ # Copied from transformers.models.xlnet.tokenization_xlnet.XLNetTokenizer._tokenize
202
+ def _tokenize(self, text: str) -> List[str]:
203
+ """Tokenize a string."""
204
+ text = self.preprocess_text(text)
205
+ pieces = self.sp_model.encode(text, out_type=str)
206
+ new_pieces = []
207
+ for piece in pieces:
208
+ if len(piece) > 1 and piece[-1] == str(",") and piece[-2].isdigit():
209
+ cur_pieces = self.sp_model.EncodeAsPieces(piece[:-1].replace(SPIECE_UNDERLINE, ""))
210
+ if piece[0] != SPIECE_UNDERLINE and cur_pieces[0][0] == SPIECE_UNDERLINE:
211
+ if len(cur_pieces[0]) == 1:
212
+ cur_pieces = cur_pieces[1:]
213
+ else:
214
+ cur_pieces[0] = cur_pieces[0][1:]
215
+ cur_pieces.append(piece[-1])
216
+ new_pieces.extend(cur_pieces)
217
+ else:
218
+ new_pieces.append(piece)
219
+
220
+ return new_pieces
221
+
222
+ # Copied from transformers.models.xlnet.tokenization_xlnet.XLNetTokenizer._convert_token_to_id
223
+ def _convert_token_to_id(self, token):
224
+ """Converts a token (str) in an id using the vocab."""
225
+ return self.sp_model.PieceToId(token)
226
+
227
+ # Copied from transformers.models.xlnet.tokenization_xlnet.XLNetTokenizer._convert_id_to_token
228
+ def _convert_id_to_token(self, index):
229
+ """Converts an index (integer) in a token (str) using the vocab."""
230
+ return self.sp_model.IdToPiece(index)
231
+
232
+ # Copied from transformers.models.xlnet.tokenization_xlnet.XLNetTokenizer.convert_tokens_to_string
233
+ def convert_tokens_to_string(self, tokens):
234
+ """Converts a sequence of tokens (strings for sub-words) in a single string."""
235
+ out_string = "".join(tokens).replace(SPIECE_UNDERLINE, " ").strip()
236
+ return out_string
237
+
238
+ # Copied from transformers.models.xlnet.tokenization_xlnet.XLNetTokenizer.build_inputs_with_special_tokens
239
+ def build_inputs_with_special_tokens(
240
+ self, token_ids_0: List[int], token_ids_1: Optional[List[int]] = None
241
+ ) -> List[int]:
242
+ """
243
+ Build model inputs from a sequence or a pair of sequence for sequence classification tasks by concatenating and
244
+ adding special tokens. An XLNet sequence has the following format:
245
+
246
+ - single sequence: `X <sep> <cls>`
247
+ - pair of sequences: `A <sep> B <sep> <cls>`
248
+
249
+ Args:
250
+ token_ids_0 (`List[int]`):
251
+ List of IDs to which the special tokens will be added.
252
+ token_ids_1 (`List[int]`, *optional*):
253
+ Optional second list of IDs for sequence pairs.
254
+
255
+ Returns:
256
+ `List[int]`: List of [input IDs](../glossary#input-ids) with the appropriate special tokens.
257
+ """
258
+ sep = [self.sep_token_id]
259
+ cls = [self.cls_token_id]
260
+ if token_ids_1 is None:
261
+ return token_ids_0 + sep + cls
262
+ return token_ids_0 + sep + token_ids_1 + sep + cls
263
+
264
+ # Copied from transformers.models.xlnet.tokenization_xlnet.XLNetTokenizer.get_special_tokens_mask
265
+ def get_special_tokens_mask(
266
+ self, token_ids_0: List[int], token_ids_1: Optional[List[int]] = None, already_has_special_tokens: bool = False
267
+ ) -> List[int]:
268
+ """
269
+ Retrieve sequence ids from a token list that has no special tokens added. This method is called when adding
270
+ special tokens using the tokenizer `prepare_for_model` method.
271
+
272
+ Args:
273
+ token_ids_0 (`List[int]`):
274
+ List of IDs.
275
+ token_ids_1 (`List[int]`, *optional*):
276
+ Optional second list of IDs for sequence pairs.
277
+ already_has_special_tokens (`bool`, *optional*, defaults to `False`):
278
+ Whether or not the token list is already formatted with special tokens for the model.
279
+
280
+ Returns:
281
+ `List[int]`: A list of integers in the range [0, 1]: 1 for a special token, 0 for a sequence token.
282
+ """
283
+
284
+ if already_has_special_tokens:
285
+ return super().get_special_tokens_mask(
286
+ token_ids_0=token_ids_0, token_ids_1=token_ids_1, already_has_special_tokens=True
287
+ )
288
+
289
+ if token_ids_1 is not None:
290
+ return ([0] * len(token_ids_0)) + [1] + ([0] * len(token_ids_1)) + [1, 1]
291
+ return ([0] * len(token_ids_0)) + [1, 1]
292
+
293
+ # Copied from transformers.models.xlnet.tokenization_xlnet.XLNetTokenizer.create_token_type_ids_from_sequences
294
+ def create_token_type_ids_from_sequences(
295
+ self, token_ids_0: List[int], token_ids_1: Optional[List[int]] = None
296
+ ) -> List[int]:
297
+ """
298
+ Create a mask from the two sequences passed to be used in a sequence-pair classification task. An XLNet
299
+ sequence pair mask has the following format:
300
+
301
+ ```
302
+ 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1
303
+ | first sequence | second sequence |
304
+ ```
305
+
306
+ If `token_ids_1` is `None`, this method only returns the first portion of the mask (0s).
307
+
308
+ Args:
309
+ token_ids_0 (`List[int]`):
310
+ List of IDs.
311
+ token_ids_1 (`List[int]`, *optional*):
312
+ Optional second list of IDs for sequence pairs.
313
+
314
+ Returns:
315
+ `List[int]`: List of [token type IDs](../glossary#token-type-ids) according to the given sequence(s).
316
+ """
317
+ sep = [self.sep_token_id]
318
+ cls_segment_id = [2]
319
+
320
+ if token_ids_1 is None:
321
+ return len(token_ids_0 + sep) * [0] + cls_segment_id
322
+ return len(token_ids_0 + sep) * [0] + len(token_ids_1 + sep) * [1] + cls_segment_id
323
+
324
+ # Copied from transformers.models.xlnet.tokenization_xlnet.XLNetTokenizer.save_vocabulary
325
+ def save_vocabulary(self, save_directory: str, filename_prefix: Optional[str] = None) -> Tuple[str]:
326
+ if not os.path.isdir(save_directory):
327
+ logger.error(f"Vocabulary path ({save_directory}) should be a directory")
328
+ return
329
+ out_vocab_file = os.path.join(
330
+ save_directory, (filename_prefix + "-" if filename_prefix else "") + VOCAB_FILES_NAMES["vocab_file"]
331
+ )
332
+
333
+ if os.path.abspath(self.vocab_file) != os.path.abspath(out_vocab_file) and os.path.isfile(self.vocab_file):
334
+ copyfile(self.vocab_file, out_vocab_file)
335
+ elif not os.path.isfile(self.vocab_file):
336
+ with open(out_vocab_file, "wb") as fi:
337
+ content_spiece_model = self.sp_model.serialized_model_proto()
338
+ fi.write(content_spiece_model)
339
+
340
+ return (out_vocab_file,)
341
+
342
+ def _decode(self, *args, **kwargs):
343
+ text = super()._decode(*args, **kwargs)
344
+ text = text.replace(" ", "").replace("\u2582", " ").replace("\u2583", "\n")
345
+ return text
346
+
347
+
348
+ __all__ = ["CpmTokenizer"]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/cpm/tokenization_cpm_fast.py ADDED
@@ -0,0 +1,241 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2018 The Google AI Language Team Authors and The HuggingFace Inc. team.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """Tokenization classes."""
16
+
17
+ import os
18
+ from shutil import copyfile
19
+ from typing import List, Optional, Tuple
20
+
21
+ from ...tokenization_utils_fast import AddedToken, PreTrainedTokenizerFast
22
+ from ...utils import logging
23
+
24
+
25
+ logger = logging.get_logger(__name__)
26
+
27
+ VOCAB_FILES_NAMES = {"vocab_file": "spiece.model", "tokenizer_file": "tokenizer.json"}
28
+
29
+
30
+ class CpmTokenizerFast(PreTrainedTokenizerFast):
31
+ """Runs pre-tokenization with Jieba segmentation tool. It is used in CPM models."""
32
+
33
+ def __init__(
34
+ self,
35
+ vocab_file=None,
36
+ tokenizer_file=None,
37
+ do_lower_case=False,
38
+ remove_space=True,
39
+ keep_accents=False,
40
+ bos_token="<s>",
41
+ eos_token="</s>",
42
+ unk_token="<unk>",
43
+ sep_token="<sep>",
44
+ pad_token="<pad>",
45
+ cls_token="<cls>",
46
+ mask_token="<mask>",
47
+ additional_special_tokens=["<eop>", "<eod>"],
48
+ **kwargs,
49
+ ):
50
+ """
51
+ Construct a CPM tokenizer. Based on [Jieba](https://pypi.org/project/jieba/) and
52
+ [SentencePiece](https://github.com/google/sentencepiece).
53
+
54
+ This tokenizer inherits from [`PreTrainedTokenizer`] which contains most of the main methods. Users should
55
+ refer to this superclass for more information regarding those methods.
56
+
57
+ Args:
58
+ vocab_file (`str`):
59
+ [SentencePiece](https://github.com/google/sentencepiece) file (generally has a .spm extension) that
60
+ contains the vocabulary necessary to instantiate a tokenizer.
61
+ do_lower_case (`bool`, *optional*, defaults to `True`):
62
+ Whether to lowercase the input when tokenizing.
63
+ remove_space (`bool`, *optional*, defaults to `True`):
64
+ Whether to strip the text when tokenizing (removing excess spaces before and after the string).
65
+ keep_accents (`bool`, *optional*, defaults to `False`):
66
+ Whether to keep accents when tokenizing.
67
+ bos_token (`str`, *optional*, defaults to `"<s>"`):
68
+ The beginning of sequence token that was used during pretraining. Can be used a sequence classifier
69
+ token.
70
+
71
+ <Tip>
72
+
73
+ When building a sequence using special tokens, this is not the token that is used for the beginning of
74
+ sequence. The token used is the `cls_token`.
75
+
76
+ </Tip>
77
+
78
+ eos_token (`str`, *optional*, defaults to `"</s>"`):
79
+ The end of sequence token.
80
+
81
+ <Tip>
82
+
83
+ When building a sequence using special tokens, this is not the token that is used for the end of
84
+ sequence. The token used is the `sep_token`.
85
+
86
+ </Tip>
87
+
88
+ unk_token (`str`, *optional*, defaults to `"<unk>"`):
89
+ The unknown token. A token that is not in the vocabulary cannot be converted to an ID and is set to be
90
+ this token instead.
91
+ sep_token (`str`, *optional*, defaults to `"<sep>"`):
92
+ The separator token, which is used when building a sequence from multiple sequences, e.g. two sequences
93
+ for sequence classification or for a text and a question for question answering. It is also used as the
94
+ last token of a sequence built with special tokens.
95
+ pad_token (`str`, *optional*, defaults to `"<pad>"`):
96
+ The token used for padding, for example when batching sequences of different lengths.
97
+ cls_token (`str`, *optional*, defaults to `"<cls>"`):
98
+ The classifier token which is used when doing sequence classification (classification of the whole
99
+ sequence instead of per-token classification). It is the first token of the sequence when built with
100
+ special tokens.
101
+ mask_token (`str`, *optional*, defaults to `"<mask>"`):
102
+ The token used for masking values. This is the token used when training this model with masked language
103
+ modeling. This is the token which the model will try to predict.
104
+ additional_special_tokens (`List[str]`, *optional*, defaults to `["<eop>", "<eod>"]`):
105
+ Additional special tokens used by the tokenizer.
106
+
107
+ Attributes:
108
+ sp_model (`SentencePieceProcessor`):
109
+ The *SentencePiece* processor that is used for every conversion (string, tokens and IDs).
110
+ """
111
+ # Mask token behave like a normal word, i.e. include the space before it
112
+ mask_token = AddedToken(mask_token, lstrip=True, rstrip=False) if isinstance(mask_token, str) else mask_token
113
+
114
+ super().__init__(
115
+ vocab_file=vocab_file,
116
+ tokenizer_file=tokenizer_file,
117
+ do_lower_case=do_lower_case,
118
+ remove_space=remove_space,
119
+ keep_accents=keep_accents,
120
+ bos_token=bos_token,
121
+ eos_token=eos_token,
122
+ unk_token=unk_token,
123
+ sep_token=sep_token,
124
+ pad_token=pad_token,
125
+ cls_token=cls_token,
126
+ mask_token=mask_token,
127
+ additional_special_tokens=additional_special_tokens,
128
+ **kwargs,
129
+ )
130
+
131
+ self._pad_token_type_id = 3
132
+ self.do_lower_case = do_lower_case
133
+ self.remove_space = remove_space
134
+ self.keep_accents = keep_accents
135
+ self.vocab_file = vocab_file
136
+
137
+ try:
138
+ import jieba
139
+ except ModuleNotFoundError as error:
140
+ raise error.__class__(
141
+ "You need to install jieba to use CpmTokenizer or CpmTokenizerFast. "
142
+ "See https://pypi.org/project/jieba/ for installation."
143
+ )
144
+ self.jieba = jieba
145
+ self.translator = str.maketrans(" \n", "\u2582\u2583")
146
+
147
+ @property
148
+ def can_save_slow_tokenizer(self) -> bool:
149
+ return os.path.isfile(self.vocab_file) if self.vocab_file else False
150
+
151
+ # Copied from transformers.models.xlnet.tokenization_xlnet_fast.XLNetTokenizerFast.build_inputs_with_special_tokens
152
+ def build_inputs_with_special_tokens(
153
+ self, token_ids_0: List[int], token_ids_1: Optional[List[int]] = None
154
+ ) -> List[int]:
155
+ """
156
+ Build model inputs from a sequence or a pair of sequence for sequence classification tasks by concatenating and
157
+ adding special tokens. An XLNet sequence has the following format:
158
+
159
+ - single sequence: `X <sep> <cls>`
160
+ - pair of sequences: `A <sep> B <sep> <cls>`
161
+
162
+ Args:
163
+ token_ids_0 (`List[int]`):
164
+ List of IDs to which the special tokens will be added.
165
+ token_ids_1 (`List[int]`, *optional*):
166
+ Optional second list of IDs for sequence pairs.
167
+
168
+ Returns:
169
+ `List[int]`: List of [input IDs](../glossary#input-ids) with the appropriate special tokens.
170
+ """
171
+ sep = [self.sep_token_id]
172
+ cls = [self.cls_token_id]
173
+ if token_ids_1 is None:
174
+ return token_ids_0 + sep + cls
175
+ return token_ids_0 + sep + token_ids_1 + sep + cls
176
+
177
+ # Copied from transformers.models.xlnet.tokenization_xlnet_fast.XLNetTokenizerFast.create_token_type_ids_from_sequences
178
+ def create_token_type_ids_from_sequences(
179
+ self, token_ids_0: List[int], token_ids_1: Optional[List[int]] = None
180
+ ) -> List[int]:
181
+ """
182
+ Create a mask from the two sequences passed to be used in a sequence-pair classification task. An XLNet
183
+ sequence pair mask has the following format:
184
+
185
+ ```
186
+ 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1
187
+ | first sequence | second sequence |
188
+ ```
189
+
190
+ If `token_ids_1` is `None`, this method only returns the first portion of the mask (0s).
191
+
192
+ Args:
193
+ token_ids_0 (`List[int]`):
194
+ List of IDs.
195
+ token_ids_1 (`List[int]`, *optional*):
196
+ Optional second list of IDs for sequence pairs.
197
+
198
+ Returns:
199
+ `List[int]`: List of [token type IDs](../glossary#token-type-ids) according to the given sequence(s).
200
+ """
201
+ sep = [self.sep_token_id]
202
+ cls_segment_id = [2]
203
+
204
+ if token_ids_1 is None:
205
+ return len(token_ids_0 + sep) * [0] + cls_segment_id
206
+ return len(token_ids_0 + sep) * [0] + len(token_ids_1 + sep) * [1] + cls_segment_id
207
+
208
+ # Copied from transformers.models.xlnet.tokenization_xlnet_fast.XLNetTokenizerFast.save_vocabulary
209
+ def save_vocabulary(self, save_directory: str, filename_prefix: Optional[str] = None) -> Tuple[str]:
210
+ if not self.can_save_slow_tokenizer:
211
+ raise ValueError(
212
+ "Your fast tokenizer does not have the necessary information to save the vocabulary for a slow "
213
+ "tokenizer."
214
+ )
215
+
216
+ if not os.path.isdir(save_directory):
217
+ logger.error(f"Vocabulary path ({save_directory}) should be a directory")
218
+ return
219
+ out_vocab_file = os.path.join(
220
+ save_directory, (filename_prefix + "-" if filename_prefix else "") + VOCAB_FILES_NAMES["vocab_file"]
221
+ )
222
+
223
+ if os.path.abspath(self.vocab_file) != os.path.abspath(out_vocab_file):
224
+ copyfile(self.vocab_file, out_vocab_file)
225
+
226
+ return (out_vocab_file,)
227
+
228
+ def _batch_encode_plus(self, batch_text_or_text_pairs, *args, **kwargs):
229
+ batch_text_or_text_pairs = [
230
+ " ".join([x.translate(self.translator) for x in self.jieba.cut(text, cut_all=False)])
231
+ for text in batch_text_or_text_pairs
232
+ ]
233
+ return super()._batch_encode_plus(batch_text_or_text_pairs, *args, **kwargs)
234
+
235
+ def _decode(self, *args, **kwargs):
236
+ text = super()._decode(*args, **kwargs)
237
+ text = text.replace(" ", "").replace("\u2582", " ").replace("\u2583", "\n")
238
+ return text
239
+
240
+
241
+ __all__ = ["CpmTokenizerFast"]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/cpmant/__init__.py ADDED
@@ -0,0 +1,28 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # Copyright 2024 The HuggingFace Team. All rights reserved.
2
+ #
3
+ # Licensed under the Apache License, Version 2.0 (the "License");
4
+ # you may not use this file except in compliance with the License.
5
+ # You may obtain a copy of the License at
6
+ #
7
+ # http://www.apache.org/licenses/LICENSE-2.0
8
+ #
9
+ # Unless required by applicable law or agreed to in writing, software
10
+ # distributed under the License is distributed on an "AS IS" BASIS,
11
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12
+ # See the License for the specific language governing permissions and
13
+ # limitations under the License.
14
+ from typing import TYPE_CHECKING
15
+
16
+ from ...utils import _LazyModule
17
+ from ...utils.import_utils import define_import_structure
18
+
19
+
20
+ if TYPE_CHECKING:
21
+ from .configuration_cpmant import *
22
+ from .modeling_cpmant import *
23
+ from .tokenization_cpmant import *
24
+ else:
25
+ import sys
26
+
27
+ _file = globals()["__file__"]
28
+ sys.modules[__name__] = _LazyModule(__name__, _file, define_import_structure(_file), module_spec=__spec__)
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/cpmant/configuration_cpmant.py ADDED
@@ -0,0 +1,122 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2022 The OpenBMB Team and The HuggingFace Inc. team. All rights reserved.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """CPMAnt model configuration"""
16
+
17
+ from ...configuration_utils import PretrainedConfig
18
+ from ...utils import logging
19
+
20
+
21
+ logger = logging.get_logger(__name__)
22
+
23
+
24
+ class CpmAntConfig(PretrainedConfig):
25
+ r"""
26
+ This is the configuration class to store the configuration of a [`CpmAntModel`]. It is used to instantiate an
27
+ CPMAnt model according to the specified arguments, defining the model architecture. Instantiating a configuration
28
+ with the defaults will yield a similar configuration to that of the CPMAnt
29
+ [openbmb/cpm-ant-10b](https://huggingface.co/openbmb/cpm-ant-10b) architecture.
30
+
31
+ Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
32
+ documentation from [`PretrainedConfig`] for more information.
33
+
34
+ Args:
35
+ vocab_size (`int`, *optional*, defaults to 30720):
36
+ Vocabulary size of the CPMAnt model. Defines the number of different tokens that can be represented by the
37
+ `input` passed when calling [`CpmAntModel`].
38
+ hidden_size (`int`, *optional*, defaults to 4096):
39
+ Dimension of the encoder layers.
40
+ num_attention_heads (`int`, *optional*, defaults to 32):
41
+ Number of attention heads in the Transformer encoder.
42
+ dim_head (`int`, *optional*, defaults to 128):
43
+ Dimension of attention heads for each attention layer in the Transformer encoder.
44
+ dim_ff (`int`, *optional*, defaults to 10240):
45
+ Dimension of the "intermediate" (i.e., feed-forward) layer in the Transformer encoder.
46
+ num_hidden_layers (`int`, *optional*, defaults to 48):
47
+ Number of layers of the Transformer encoder.
48
+ dropout_p (`float`, *optional*, defaults to 0.0):
49
+ The dropout probability for all fully connected layers in the embeddings, encoder.
50
+ position_bias_num_buckets (`int`, *optional*, defaults to 512):
51
+ The number of position_bias buckets.
52
+ position_bias_max_distance (`int`, *optional*, defaults to 2048):
53
+ The maximum sequence length that this model might ever be used with. Typically set this to something large
54
+ just in case (e.g., 512 or 1024 or 2048).
55
+ eps (`float`, *optional*, defaults to 1e-06):
56
+ The epsilon used by the layer normalization layers.
57
+ init_std (`float`, *optional*, defaults to 1.0):
58
+ Initialize parameters with std = init_std.
59
+ prompt_types (`int`, *optional*, defaults to 32):
60
+ The type of prompt.
61
+ prompt_length (`int`, *optional*, defaults to 32):
62
+ The length of prompt.
63
+ segment_types (`int`, *optional*, defaults to 32):
64
+ The type of segment.
65
+ use_cache (`bool`, *optional*, defaults to `True`):
66
+ Whether to use cache.
67
+
68
+ Example:
69
+
70
+ ```python
71
+ >>> from transformers import CpmAntModel, CpmAntConfig
72
+
73
+ >>> # Initializing a CPMAnt cpm-ant-10b style configuration
74
+ >>> configuration = CpmAntConfig()
75
+
76
+ >>> # Initializing a model from the cpm-ant-10b style configuration
77
+ >>> model = CpmAntModel(configuration)
78
+
79
+ >>> # Accessing the model configuration
80
+ >>> configuration = model.config
81
+ ```"""
82
+
83
+ model_type = "cpmant"
84
+
85
+ def __init__(
86
+ self,
87
+ vocab_size: int = 30720,
88
+ hidden_size: int = 4096,
89
+ num_attention_heads: int = 32,
90
+ dim_head: int = 128,
91
+ dim_ff: int = 10240,
92
+ num_hidden_layers: int = 48,
93
+ dropout_p: int = 0.0,
94
+ position_bias_num_buckets: int = 512,
95
+ position_bias_max_distance: int = 2048,
96
+ eps: int = 1e-6,
97
+ init_std: float = 1.0,
98
+ prompt_types: int = 32,
99
+ prompt_length: int = 32,
100
+ segment_types: int = 32,
101
+ use_cache: bool = True,
102
+ **kwargs,
103
+ ):
104
+ super().__init__(**kwargs)
105
+ self.prompt_types = prompt_types
106
+ self.prompt_length = prompt_length
107
+ self.segment_types = segment_types
108
+ self.hidden_size = hidden_size
109
+ self.num_attention_heads = num_attention_heads
110
+ self.dim_head = dim_head
111
+ self.dim_ff = dim_ff
112
+ self.num_hidden_layers = num_hidden_layers
113
+ self.position_bias_num_buckets = position_bias_num_buckets
114
+ self.position_bias_max_distance = position_bias_max_distance
115
+ self.dropout_p = dropout_p
116
+ self.eps = eps
117
+ self.use_cache = use_cache
118
+ self.vocab_size = vocab_size
119
+ self.init_std = init_std
120
+
121
+
122
+ __all__ = ["CpmAntConfig"]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/cpmant/modeling_cpmant.py ADDED
@@ -0,0 +1,860 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2022 The OpenBMB Team and The HuggingFace Inc. team. All rights reserved.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """PyTorch CPMAnt"""
16
+
17
+ import math
18
+ from typing import List, Optional, Tuple, Union
19
+
20
+ import torch
21
+ import torch.nn.functional as F
22
+ import torch.utils.checkpoint
23
+ from torch import nn
24
+ from torch.nn import CrossEntropyLoss
25
+
26
+ from ...activations import ACT2FN
27
+ from ...generation import GenerationMixin
28
+ from ...modeling_outputs import BaseModelOutputWithPast, CausalLMOutputWithPast
29
+ from ...modeling_utils import PreTrainedModel
30
+ from ...utils import add_code_sample_docstrings, add_start_docstrings, add_start_docstrings_to_model_forward, logging
31
+ from .configuration_cpmant import CpmAntConfig
32
+
33
+
34
+ logger = logging.get_logger(__name__)
35
+
36
+ _CHECKPOINT_FOR_DOC = "openbmb/cpm-ant-10b"
37
+ _CONFIG_FOR_DOC = "CpmAntConfig"
38
+
39
+
40
+ class CpmAntLayerNorm(nn.Module):
41
+ """
42
+ We use Root Mean Square (RMS) Layer Normalization, please see https://arxiv.org/abs/1910.07467 for details."
43
+ """
44
+
45
+ def __init__(self, config: CpmAntConfig):
46
+ super().__init__()
47
+
48
+ self.eps = config.eps
49
+ self.dim_norm = config.hidden_size
50
+ self.weight = nn.Parameter(torch.empty(config.hidden_size))
51
+
52
+ def forward(self, hidden_states: torch.Tensor):
53
+ """
54
+ Args:
55
+ hidden_states (`torch.Tensor` of shape `(batch, seq_len, dim_in)`)
56
+ """
57
+ if hidden_states.size(-1) != self.dim_norm:
58
+ raise AssertionError("hidden_states.size(-1) != self.dim_norm")
59
+ old_dtype = hidden_states.dtype
60
+ variance = hidden_states.to(torch.float32).pow(2).mean(dim=-1, keepdim=True)
61
+ hidden_states = (hidden_states * torch.rsqrt(variance + self.eps)).to(old_dtype) * self.weight
62
+ return hidden_states
63
+
64
+
65
+ class CpmAntAttention(nn.Module):
66
+ def __init__(self, config: CpmAntConfig):
67
+ super().__init__()
68
+ self.dim_model = config.hidden_size
69
+ self.num_heads = config.num_attention_heads
70
+ self.dim_head = config.dim_head
71
+
72
+ self.project_q = nn.Linear(self.dim_model, self.num_heads * self.dim_head, bias=False)
73
+ self.project_k = nn.Linear(self.dim_model, self.num_heads * self.dim_head, bias=False)
74
+ self.project_v = nn.Linear(self.dim_model, self.num_heads * self.dim_head, bias=False)
75
+
76
+ self.attention_out = nn.Linear(self.num_heads * self.dim_head, self.dim_model, bias=False)
77
+
78
+ self.softmax = torch.nn.Softmax(dim=-1)
79
+
80
+ if config.dropout_p is not None:
81
+ self.dropout = torch.nn.Dropout(p=config.dropout_p)
82
+ else:
83
+ self.dropout = None
84
+
85
+ def forward(
86
+ self,
87
+ hidden_q: torch.Tensor,
88
+ hidden_kv: torch.Tensor,
89
+ attention_mask: torch.BoolTensor,
90
+ position_bias: torch.Tensor,
91
+ output_attentions: Optional[bool] = False,
92
+ past_key_values: Optional[Tuple[torch.Tensor, torch.Tensor]] = None,
93
+ use_cache: Optional[bool] = None,
94
+ ):
95
+ """
96
+ Args:
97
+ hidden_q (`torch.Tensor`):
98
+ Input of transformer block(self-attention block). It can be the raw embedding of a batch of sequences.
99
+ hidden_kv (`torch.Tensor` of shape `(batch, len_k, dim_model)`)):
100
+ Tensor *key_value* and *query* of shape `(batch, len_k, dim_model)`
101
+ attention_mask (`torch.Tensor` of shape `(batch, len_seq, len_seq)`):
102
+ Avoid invalid areas to participate in the calculation of self-attention.
103
+ position_bias (`torch.Tensor` of shape `(batch, len_seq, len_seq)`):
104
+ Provide positional information to self-attention block.
105
+ output_attentions (`bool`, *optional*):
106
+ Whether or not to return the attentions tensors of all attention layers.
107
+ past_key_values (`Tuple[torch.Tensor, torch.Tensor]`, *optional*):
108
+ Cached past key and value projection states.
109
+ use_cache (`bool`, *optional*):
110
+ If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding
111
+ (see `past_key_values`).
112
+ """
113
+ batch_size = hidden_q.size(0)
114
+ len_q = hidden_q.size(1)
115
+ len_k = hidden_kv.size(1)
116
+
117
+ query = self.project_q(hidden_q)
118
+ key = self.project_k(hidden_kv)
119
+ value = self.project_v(hidden_kv)
120
+
121
+ query = query.view(batch_size, len_q, self.num_heads, self.dim_head).permute(0, 2, 1, 3)
122
+ key = key.view(batch_size, len_k, self.num_heads, self.dim_head).permute(0, 2, 1, 3)
123
+ value = value.view(batch_size, len_k, self.num_heads, self.dim_head).permute(0, 2, 1, 3)
124
+
125
+ if past_key_values is not None:
126
+ key = torch.cat([past_key_values[0], key], dim=-2)
127
+ value = torch.cat([past_key_values[1], value], dim=-2)
128
+ len_k = key.size(-2)
129
+
130
+ # (batch_size, num_heads, len_q, dim_head) @ (batch_size, num_heads, dim_head, len_k) -> (batch_size, num_heads, len_q, len_k)
131
+ score = torch.matmul(query, key.transpose(-1, -2)) / math.sqrt(self.dim_head)
132
+ score = score + position_bias
133
+
134
+ score = torch.masked_fill(
135
+ score,
136
+ attention_mask.view(batch_size, 1, len_q, len_k) == torch.tensor(False),
137
+ torch.scalar_tensor(float("-inf"), device=score.device, dtype=score.dtype),
138
+ )
139
+ score = self.softmax(score)
140
+
141
+ score = torch.masked_fill(
142
+ score,
143
+ attention_mask.view(batch_size, 1, len_q, len_k) == torch.tensor(False),
144
+ torch.scalar_tensor(0, device=score.device, dtype=score.dtype),
145
+ )
146
+ if output_attentions:
147
+ attn_weights = score
148
+ else:
149
+ attn_weights = None
150
+
151
+ if self.dropout is not None:
152
+ score = self.dropout(score)
153
+
154
+ # (batch_size, num_heads, len_q, len_k) @ (batch_size, num_heads, len_k, dim_head) -> (batch_size, num_heads, len_q, dim_head)
155
+ score = torch.matmul(score, value)
156
+
157
+ score = score.view(batch_size, self.num_heads, len_q, self.dim_head).permute(0, 2, 1, 3)
158
+ score = score.contiguous().view(batch_size, len_q, self.num_heads * self.dim_head)
159
+
160
+ score = self.attention_out(score)
161
+
162
+ past_key_values = None
163
+ if use_cache:
164
+ past_key_values = (key, value)
165
+
166
+ return score, attn_weights, past_key_values
167
+
168
+
169
+ class CpmAntSelfAttentionBlock(nn.Module):
170
+ def __init__(self, config: CpmAntConfig):
171
+ super().__init__()
172
+ self.layernorm_before_attention = CpmAntLayerNorm(config)
173
+ self.self_attention = CpmAntAttention(config)
174
+ if config.dropout_p:
175
+ self.dropout = torch.nn.Dropout(config.dropout_p)
176
+ else:
177
+ self.dropout = None
178
+
179
+ def forward(
180
+ self,
181
+ hidden_states: torch.Tensor,
182
+ attention_mask: torch.Tensor,
183
+ position_bias: Optional[torch.Tensor] = None,
184
+ output_attentions: Optional[bool] = False,
185
+ past_key_values: Optional[Tuple[torch.Tensor, torch.Tensor]] = None,
186
+ use_cache: Optional[bool] = None,
187
+ ):
188
+ """
189
+ Args:
190
+ hidden_states (`torch.Tensor` of shape `(batch, len_seq, dim_model)`):
191
+ Input of transformer block(self-attention block). It can be the raw embedding of a batch of sequences.
192
+ attention_mask (`torch.Tensor` of shape `(batch, len_seq, len_seq)`):
193
+ Avoid invalid areas to participate in the calculation of self-attention.
194
+ position_bias (`torch.Tensor` of shape `(batch, len_seq, len_seq)`):
195
+ Provide positional information to self-attention block.
196
+ output_attentions (`bool`, *optional*):
197
+ Whether or not to return the attentions tensors of all attention layers.
198
+ past_key_values (`Tuple(torch.FloatTensor)`, *optional*):
199
+ Cached past key and value projection states.
200
+ use_cache (`bool`, *optional*):
201
+ If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding
202
+ (see `past_key_values`).
203
+ """
204
+ outputs = self.layernorm_before_attention(hidden_states)
205
+ outputs = self.self_attention(
206
+ outputs, outputs, attention_mask, position_bias, output_attentions, past_key_values, use_cache
207
+ )
208
+
209
+ outputs, attn_weights, current_key_value = outputs
210
+
211
+ if self.dropout is not None:
212
+ outputs = self.dropout(outputs)
213
+ hidden_states = hidden_states + outputs
214
+
215
+ return hidden_states, attn_weights, current_key_value
216
+
217
+
218
+ class CpmAntDenseGatedACT(nn.Module):
219
+ def __init__(self, config: CpmAntConfig):
220
+ super().__init__()
221
+ self.w_0 = nn.Linear(config.hidden_size, config.dim_ff, bias=False)
222
+ self.w_1 = nn.Linear(config.hidden_size, config.dim_ff, bias=False)
223
+ self.act = torch.nn.GELU()
224
+
225
+ def forward(self, hidden_states: torch.Tensor):
226
+ """Transform an input tensor from one feature space to another via a nonlinear operation
227
+
228
+ Args:
229
+ hidden_states (`torch.Tensor` of shape `(batch, seq_len, dim_in)`)
230
+ """
231
+ gate_score = self.act(self.w_0(hidden_states))
232
+ hidden_states = self.w_1(hidden_states)
233
+
234
+ hidden_states = gate_score * hidden_states
235
+ return hidden_states
236
+
237
+
238
+ class CpmAntFeedForward(nn.Module):
239
+ def __init__(self, config: CpmAntConfig):
240
+ super().__init__()
241
+ self.w_in = CpmAntDenseGatedACT(config)
242
+ if config.dropout_p is not None:
243
+ self.dropout = torch.nn.Dropout(config.dropout_p)
244
+ else:
245
+ self.dropout = None
246
+
247
+ self.w_out = nn.Linear(config.dim_ff, config.hidden_size, bias=False)
248
+
249
+ def forward(self, hidden_states: torch.Tensor):
250
+ """
251
+ Args:
252
+ hidden_states (`torch.Tensor` of shape `(batch, seq_len, dim_in)`)
253
+ """
254
+ hidden_states = self.w_in(hidden_states)
255
+
256
+ if self.dropout is not None:
257
+ hidden_states = self.dropout(hidden_states)
258
+
259
+ hidden_states = self.w_out(hidden_states)
260
+
261
+ return hidden_states
262
+
263
+
264
+ class CpmAntFFNBlock(nn.Module):
265
+ def __init__(self, config: CpmAntConfig):
266
+ super().__init__()
267
+ self.layernorm_before_ffn = CpmAntLayerNorm(config)
268
+ self.ffn = CpmAntFeedForward(config)
269
+ if config.dropout_p:
270
+ self.dropout = torch.nn.Dropout(config.dropout_p)
271
+ else:
272
+ self.dropout = None
273
+
274
+ def forward(
275
+ self,
276
+ hidden_states: torch.Tensor,
277
+ ):
278
+ """
279
+ Args:
280
+ hidden_states (`torch.Tensor` of shape `(batch, len_seq, dim_model)`):
281
+ Hidden states before feed forward layer.
282
+ """
283
+ ln_outputs = self.layernorm_before_ffn(hidden_states)
284
+ outputs = self.ffn(ln_outputs)
285
+ if self.dropout is not None:
286
+ outputs = self.dropout(outputs)
287
+ hidden_states = hidden_states + outputs
288
+ return hidden_states
289
+
290
+
291
+ class CpmAntTransformerBlock(nn.Module):
292
+ def __init__(self, config: CpmAntConfig):
293
+ super().__init__()
294
+ self.self_att = CpmAntSelfAttentionBlock(config)
295
+ self.ffn = CpmAntFFNBlock(config)
296
+
297
+ def forward(
298
+ self,
299
+ hidden_states: torch.Tensor,
300
+ attention_mask: torch.Tensor,
301
+ position_bias: Optional[torch.Tensor] = None,
302
+ output_attentions: Optional[bool] = False,
303
+ past_key_values: Optional[Tuple[torch.Tensor, torch.Tensor]] = None,
304
+ use_cache: Optional[bool] = None,
305
+ ):
306
+ """
307
+ Args:
308
+ hidden_states (`torch.Tensor`):
309
+ Input to the layer of shape `(batch, seq_len, dim_model)`
310
+ attention_mask (`torch.Tensor`):
311
+ Avoid invalid areas to participate in the calculation of shape `(batch, seq_len, seq_len)`
312
+ position_bias (`torch.Tensor`):
313
+ Provides position information to attention mechanism of shape `(num_heads, seq_len, seq_len)`
314
+ output_attentions (`bool`, *optional*):
315
+ Whether or not to return the attentions tensors of all attention layers.
316
+ past_key_values (`Tuple[torch.Tensor, torch.Tensor])`, *optional*):
317
+ Cached past key and value projection states
318
+ use_cache (`bool`, *optional*):
319
+ If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding
320
+ (see `past_key_values`).
321
+ """
322
+ hidden_states = self.self_att(
323
+ hidden_states,
324
+ attention_mask=attention_mask,
325
+ position_bias=position_bias,
326
+ output_attentions=output_attentions,
327
+ past_key_values=past_key_values,
328
+ use_cache=use_cache,
329
+ )
330
+
331
+ hidden_states, attn_weights, current_key_value = hidden_states
332
+
333
+ hidden_states = self.ffn(hidden_states)
334
+
335
+ return hidden_states, attn_weights, current_key_value
336
+
337
+
338
+ class CpmAntEncoder(nn.Module):
339
+ def __init__(self, config: CpmAntConfig):
340
+ super().__init__()
341
+ self.num_layers = config.num_hidden_layers
342
+ self.layers = nn.ModuleList([CpmAntTransformerBlock(config) for ith in range(self.num_layers)])
343
+
344
+ self.output_layernorm = CpmAntLayerNorm(config)
345
+
346
+ def forward(
347
+ self,
348
+ hidden_states: torch.Tensor,
349
+ attention_mask: torch.Tensor,
350
+ position_bias: torch.Tensor,
351
+ output_attentions: Optional[bool] = None,
352
+ output_hidden_states: Optional[bool] = None,
353
+ past_key_values: Optional[Tuple[torch.Tensor, torch.Tensor]] = None,
354
+ use_cache: Optional[bool] = None,
355
+ ):
356
+ """
357
+ Args:
358
+ hidden_states (`torch.Tensor`):
359
+ Input to the layer of shape `(batch, seq_len, dim_model)`
360
+ attention_mask (`torch.Tensor`):
361
+ Avoid invalid areas to participate in the calculation of shape `(batch, seq_len, seq_len)`
362
+ position_bias (`torch.Tensor`):
363
+ Provides position information to attention mechanism of shape `(num_heads, seq_len, seq_len)`
364
+ output_attentions (`bool`, *optional*):
365
+ Whether or not to return the attentions tensors of all attention layers.
366
+ output_hidden_states (`bool`, *optional*):
367
+ Whether or not to return the hidden states of all layers.
368
+ past_key_values (`Tuple[torch.Tensor, torch.Tensor])`, *optional*):
369
+ Cached past key and value projection states
370
+ use_cache (`bool`, *optional*):
371
+ If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding
372
+ (see `past_key_values`).
373
+ """
374
+ all_hidden_states = () if output_hidden_states else None
375
+ all_self_attns = () if output_attentions else None
376
+ current_key_values = () if use_cache else None
377
+
378
+ for i, layer in enumerate(self.layers):
379
+ if output_hidden_states:
380
+ all_hidden_states += (hidden_states,)
381
+ layer_outputs = layer(
382
+ hidden_states,
383
+ attention_mask,
384
+ position_bias,
385
+ output_attentions=output_attentions,
386
+ past_key_values=past_key_values[i] if past_key_values else None,
387
+ use_cache=use_cache,
388
+ )
389
+ hidden_states, attn_weights, current_key_value = layer_outputs
390
+ if output_attentions:
391
+ all_self_attns += (attn_weights,)
392
+ if current_key_value is not None:
393
+ current_key_values = current_key_values + (current_key_value,)
394
+
395
+ hidden_states = self.output_layernorm(hidden_states)
396
+
397
+ if output_hidden_states:
398
+ all_hidden_states += (hidden_states,)
399
+
400
+ return hidden_states, current_key_values, all_hidden_states, all_self_attns
401
+
402
+
403
+ # Copied from transformers.models.bert.modeling_bert.BertIntermediate with Bert->CPMAnt
404
+ class CpmAntIntermediate(nn.Module):
405
+ def __init__(self, config):
406
+ super().__init__()
407
+ self.dense = nn.Linear(config.hidden_size, config.intermediate_size)
408
+ if isinstance(config.hidden_act, str):
409
+ self.intermediate_act_fn = ACT2FN[config.hidden_act]
410
+ else:
411
+ self.intermediate_act_fn = config.hidden_act
412
+
413
+ def forward(self, hidden_states: torch.Tensor) -> torch.Tensor:
414
+ hidden_states = self.dense(hidden_states)
415
+ hidden_states = self.intermediate_act_fn(hidden_states)
416
+ return hidden_states
417
+
418
+
419
+ class CpmAntSegmentPositionEmbedding(nn.Module):
420
+ def __init__(self, config: CpmAntConfig):
421
+ super().__init__()
422
+
423
+ self.num_heads = config.num_attention_heads
424
+ self.num_buckets = config.position_bias_num_buckets
425
+ self.max_distance = config.position_bias_max_distance
426
+ self.num_segments = config.segment_types
427
+
428
+ self.relative_attention_bias = nn.Parameter(
429
+ torch.empty(
430
+ config.segment_types * config.segment_types + config.position_bias_num_buckets,
431
+ config.num_attention_heads,
432
+ )
433
+ )
434
+
435
+ def forward(
436
+ self,
437
+ key_pos: torch.Tensor,
438
+ query_pos: torch.Tensor,
439
+ key_segment: torch.Tensor,
440
+ query_segment: torch.Tensor,
441
+ ):
442
+ with torch.no_grad():
443
+ batch = key_pos.size(0)
444
+ keylen = key_pos.size(1)
445
+ querylen = query_pos.size(1)
446
+
447
+ if key_pos.size(0) != query_pos.size(0):
448
+ raise AssertionError(
449
+ f"key_pos.size(0) should be equal to query_pos.size(0), but got {key_pos.size(0)} and {query_pos.size(0)}!"
450
+ )
451
+ if keylen != key_segment.size(1) or querylen != query_segment.size(1):
452
+ raise AssertionError(
453
+ f"keylen should be equal to key_segment.size(1), but got {keylen} and {key_segment.size(1)}!"
454
+ )
455
+ if querylen != query_segment.size(1):
456
+ raise AssertionError(
457
+ f"querylen should be equal to query_segment.size(1), but got {querylen} and {query_segment.szie(1)}!"
458
+ )
459
+
460
+ key_pos = key_pos.view(batch, -1, keylen)
461
+ query_pos = query_pos.view(batch, querylen, -1)
462
+ key_segment = key_segment.view(batch, -1, keylen)
463
+ query_segment = query_segment.view(batch, querylen, -1)
464
+
465
+ relative_position_bucket = self._segment_relative_position_bucket(query_segment, key_segment)
466
+ relative_position_bucket = relative_position_bucket + self.num_buckets
467
+
468
+ # (batch, len_q, len_k)
469
+ absolute_position_bucket = self._position_bucket(
470
+ torch.arange(keylen, dtype=torch.int32, device=relative_position_bucket.device)[None, :]
471
+ - torch.arange(querylen, dtype=torch.int32, device=relative_position_bucket.device)[:, None],
472
+ num_buckets=self.num_buckets,
473
+ max_distance=self.max_distance,
474
+ )
475
+ relative_position_bucket = torch.where(
476
+ (key_segment == query_segment),
477
+ absolute_position_bucket[None, :, :],
478
+ relative_position_bucket,
479
+ )
480
+
481
+ # (batch, len_q, len_k, num_heads)
482
+ embeds = F.embedding(relative_position_bucket, self.relative_attention_bias)
483
+ # (batch, num_heads, len_q, len_k)
484
+ embeds = embeds.permute(0, 3, 1, 2).contiguous()
485
+ return embeds
486
+
487
+ def _segment_relative_position_bucket(self, query_segment, key_segment):
488
+ return query_segment * self.num_segments + key_segment
489
+
490
+ def _position_bucket(self, relative_position, num_buckets=32, max_distance=128):
491
+ relative_buckets = 0
492
+ # always bidirectional in CPMAnt
493
+ num_buckets //= 2
494
+ relative_buckets = (relative_position > 0).to(torch.int32) * num_buckets
495
+ relative_position = torch.abs(relative_position)
496
+ max_exact = num_buckets // 2
497
+ is_small = relative_position < max_exact
498
+ relative_postion_if_large = max_exact + (
499
+ torch.log(relative_position.float() / max_exact)
500
+ / math.log(max_distance / max_exact)
501
+ * (num_buckets - max_exact)
502
+ ).to(torch.int32)
503
+ relative_postion_if_large = torch.min(
504
+ relative_postion_if_large,
505
+ torch.full_like(relative_postion_if_large, num_buckets - 1),
506
+ )
507
+ relative_buckets += torch.where(is_small, relative_position.to(torch.int32), relative_postion_if_large)
508
+ return relative_buckets
509
+
510
+
511
+ # Copied from transformers.models.bert.modeling_bert.BertOutput with Bert->CPMAnt
512
+ class CpmAntOutput(nn.Module):
513
+ def __init__(self, config):
514
+ super().__init__()
515
+ self.dense = nn.Linear(config.intermediate_size, config.hidden_size)
516
+ self.LayerNorm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps)
517
+ self.dropout = nn.Dropout(config.hidden_dropout_prob)
518
+
519
+ def forward(self, hidden_states: torch.Tensor, input_tensor: torch.Tensor) -> torch.Tensor:
520
+ hidden_states = self.dense(hidden_states)
521
+ hidden_states = self.dropout(hidden_states)
522
+ hidden_states = self.LayerNorm(hidden_states + input_tensor)
523
+ return hidden_states
524
+
525
+
526
+ class CpmAntPreTrainedModel(PreTrainedModel):
527
+ """
528
+ An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained
529
+ models.
530
+ """
531
+
532
+ config_class = CpmAntConfig
533
+ base_model_prefix = "cpmant"
534
+
535
+ def _init_weights(self, module):
536
+ """Initialize the weights"""
537
+ if isinstance(module, nn.Linear):
538
+ module.weight.data.normal_(mean=0.0, std=self.config.init_std)
539
+ if module.bias is not None:
540
+ module.bias.data.zero_()
541
+ elif isinstance(module, nn.Embedding):
542
+ module.weight.data.normal_(mean=0.0, std=self.config.init_std)
543
+ if module.padding_idx is not None:
544
+ module.weight.data[module.padding_idx].zero_()
545
+ elif isinstance(module, nn.LayerNorm):
546
+ module.bias.data.zero_()
547
+ module.weight.data.fill_(1.0)
548
+ elif isinstance(module, CpmAntLayerNorm):
549
+ module.weight.data.fill_(1.0)
550
+ elif isinstance(module, CpmAntSegmentPositionEmbedding):
551
+ module.relative_attention_bias.data.normal_(mean=0.0, std=self.config.init_std)
552
+
553
+
554
+ CPMANT_START_DOCSTRING = r"""
555
+ This model is a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) sub-class. Use
556
+ it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage and
557
+ behavior.
558
+
559
+ Parameters
560
+ config ([`~CpmAntConfig`]): Model configuration class with all the parameters of the
561
+ Initializing with a config file does not load the weights associated with the model, only the
562
+ configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights.
563
+ """
564
+
565
+ CPMANT_INPUTS_DOCSTRING = r"""
566
+ Args:
567
+ input_ids (`torch.Tensor` of shape `(batch_size, seq_len)`):
568
+ Indices of input sequence tokens in the vocabulary.
569
+
570
+ Indices can be obtained using [`CPMAntTokenizer`]. See [`PreTrainedTokenizer.encode`] and
571
+ [`PreTrainedTokenizer.__call__`] for details.
572
+
573
+ [What are input IDs?](../glossary#input-ids)
574
+ past_key_values (`tuple(tuple(torch.FloatTensor))`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`):
575
+ Contains pre-computed hidden-states (key and values in the self-attention blocks and in the cross-attention
576
+ blocks) that can be used (see `past_key_values` input) to speed up sequential decoding.
577
+ use_cache (`bool`, *optional*):
578
+ If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding (see
579
+ `past_key_values`).
580
+ output_attentions (`bool`, *optional*):
581
+ Whether or not to return the attentions tensors of all attention layers.
582
+ output_hidden_states (`bool`, *optional*):
583
+ Whether or not to return the hidden states of all layers.
584
+ return_dict (`bool`, *optional*):
585
+ Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
586
+ """
587
+
588
+
589
+ @add_start_docstrings(
590
+ "The bare CPMAnt Model outputting raw hidden-states without any specific head on top.",
591
+ CPMANT_START_DOCSTRING,
592
+ )
593
+ class CpmAntModel(CpmAntPreTrainedModel):
594
+ def __init__(self, config: CpmAntConfig):
595
+ super().__init__(config)
596
+ self.encoder = CpmAntEncoder(config)
597
+ self.segment_embedding = nn.Embedding(config.segment_types, config.hidden_size)
598
+ self.input_embedding = nn.Embedding(
599
+ config.vocab_size + config.prompt_types * config.prompt_length, config.hidden_size
600
+ )
601
+ self.position_bias = CpmAntSegmentPositionEmbedding(config)
602
+ self.prompt_length = config.prompt_length
603
+ self.vocab_size = config.vocab_size
604
+
605
+ self.post_init()
606
+
607
+ def get_input_embeddings(self):
608
+ return self.input_embedding
609
+
610
+ def set_input_embeddings(self, embeddings, **kwargs):
611
+ self.input_embedding = embeddings
612
+
613
+ def _prepare_attention_mask(self, input_ids, span, context, length):
614
+ batch = input_ids.size(0)
615
+ seqlen = input_ids.size(1)
616
+ device = input_ids.device
617
+ directional_mask_2d = torch.arange(seqlen, device=device) <= torch.arange(seqlen, device=device).view(-1, 1)
618
+ attention_mask = context[:, None, :] | (
619
+ context[:, :, None].logical_not() & directional_mask_2d.view(1, seqlen, seqlen)
620
+ )
621
+ attention_mask = attention_mask & (span[:, None, :] == span[:, :, None])
622
+ # mask for left padding
623
+ mask_1d = (
624
+ torch.tensor(list(range(seqlen - self.prompt_length))[::-1], device=device)[None, :].repeat(batch, 1)
625
+ < length[:, None]
626
+ )
627
+ mask_1d = torch.cat((torch.ones(batch, self.prompt_length, device=device).bool(), mask_1d), dim=1)
628
+ attention_mask = mask_1d.view(batch, seqlen, 1) & mask_1d.view(batch, 1, seqlen) & attention_mask
629
+ return attention_mask
630
+
631
+ @add_start_docstrings_to_model_forward(CPMANT_INPUTS_DOCSTRING)
632
+ @add_code_sample_docstrings(
633
+ checkpoint=_CHECKPOINT_FOR_DOC,
634
+ output_type=BaseModelOutputWithPast,
635
+ config_class=_CONFIG_FOR_DOC,
636
+ )
637
+ def forward(
638
+ self,
639
+ input_ids: Optional[torch.Tensor] = None,
640
+ output_attentions: Optional[bool] = None,
641
+ output_hidden_states: Optional[bool] = None,
642
+ past_key_values: Optional[Tuple[Tuple[torch.Tensor]]] = None,
643
+ use_cache: Optional[bool] = None,
644
+ return_dict: Optional[bool] = None,
645
+ **kwargs,
646
+ ) -> Union[Tuple[torch.Tensor], BaseModelOutputWithPast]:
647
+ output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
648
+ output_hidden_states = (
649
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
650
+ )
651
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
652
+ use_cache = use_cache if use_cache is not None else self.config.use_cache
653
+
654
+ # add prompts ahead
655
+ if input_ids.dtype != torch.int32:
656
+ input_ids = input_ids.to(torch.int32)
657
+ dtype, device = input_ids.dtype, input_ids.device
658
+ segment = torch.where(input_ids != 0, 2, 0).to(dtype=dtype, device=device)
659
+ length = (segment != 0).sum(-1).to(dtype=dtype, device=device)
660
+ input_ids = torch.cat(
661
+ (
662
+ torch.arange(
663
+ self.prompt_length * 2 + self.vocab_size,
664
+ self.prompt_length * 3 + self.vocab_size,
665
+ dtype=dtype,
666
+ device=device,
667
+ ).repeat(input_ids.size(0), 1),
668
+ input_ids,
669
+ ),
670
+ dim=1,
671
+ )
672
+ batch, seq_length = input_ids.size()
673
+ segment = torch.cat((torch.zeros(batch, self.prompt_length, dtype=dtype, device=device), segment), dim=1)
674
+ context = torch.full((batch, seq_length), 1, dtype=dtype, device=device)
675
+ position = torch.arange(seq_length, dtype=dtype, device=device).repeat(batch, 1)
676
+ span = torch.full((batch, seq_length), 0, dtype=dtype, device=device)
677
+
678
+ if past_key_values is None:
679
+ past_length = 0
680
+ past_key_values = tuple([None] * self.encoder.num_layers)
681
+ input_ids = input_ids.contiguous()
682
+ hidden_states = self.input_embedding(input_ids)
683
+ segment_states = self.segment_embedding(segment)
684
+ hidden_states = hidden_states + segment_states
685
+ else:
686
+ past_length = past_key_values[0][0].size(-2)
687
+ segment_states = self.segment_embedding(segment)
688
+ hidden_states = self.input_embedding(input_ids) + segment_states[:, -1:, :]
689
+
690
+ attention_mask = self._prepare_attention_mask(input_ids, span, context, length)
691
+ position_bias = self.position_bias(position, position, segment, segment)
692
+
693
+ attention_mask = attention_mask[:, past_length:, :]
694
+ position_bias = position_bias[:, :, past_length:, :]
695
+ hidden_states = hidden_states[:, past_length:, :]
696
+
697
+ hidden_states, present_key_values, all_hidden_states, all_attentions = self.encoder(
698
+ hidden_states,
699
+ attention_mask,
700
+ position_bias,
701
+ output_attentions,
702
+ output_hidden_states,
703
+ past_key_values,
704
+ use_cache,
705
+ )
706
+
707
+ if past_length == 0:
708
+ hidden_states = hidden_states[:, self.prompt_length :, :]
709
+ # drop the prompt
710
+ if all_attentions is not None:
711
+ new_attentions = ()
712
+ for attention in all_attentions:
713
+ new_attentions += (attention[:, :, self.prompt_length :, self.prompt_length :],)
714
+ all_attentions = new_attentions
715
+ if all_hidden_states is not None:
716
+ new_hidden_states = ()
717
+ for hidden_state in all_hidden_states:
718
+ new_hidden_states += (hidden_state[:, self.prompt_length :, :],)
719
+ all_hidden_states = new_hidden_states
720
+
721
+ if not return_dict:
722
+ return tuple(
723
+ v for v in [hidden_states, present_key_values, all_hidden_states, all_attentions] if v is not None
724
+ )
725
+
726
+ return BaseModelOutputWithPast(
727
+ last_hidden_state=hidden_states,
728
+ past_key_values=present_key_values,
729
+ hidden_states=all_hidden_states,
730
+ attentions=all_attentions,
731
+ )
732
+
733
+
734
+ @add_start_docstrings(
735
+ """
736
+ The CPMAnt Model with a language modeling head on top (linear layer with weights tied to the input embeddings).
737
+ """,
738
+ CPMANT_START_DOCSTRING,
739
+ )
740
+ class CpmAntForCausalLM(CpmAntPreTrainedModel, GenerationMixin):
741
+ _tied_weights_keys = ["lm_head.weight"]
742
+
743
+ def __init__(self, config: CpmAntConfig):
744
+ super().__init__(config)
745
+ self.cpmant = CpmAntModel(config)
746
+
747
+ # lm_head.weight is tied to cpmant.input_embedding.weight
748
+ self.lm_head = nn.Linear(
749
+ config.hidden_size, config.vocab_size + config.prompt_types * config.prompt_length, bias=False
750
+ )
751
+ self.post_init()
752
+
753
+ @add_start_docstrings_to_model_forward(CPMANT_INPUTS_DOCSTRING)
754
+ @add_code_sample_docstrings(
755
+ checkpoint=_CHECKPOINT_FOR_DOC,
756
+ output_type=CausalLMOutputWithPast,
757
+ config_class=_CONFIG_FOR_DOC,
758
+ )
759
+ def forward(
760
+ self,
761
+ input_ids: Optional[torch.Tensor] = None,
762
+ past_key_values: Optional[List[Tuple[torch.Tensor, torch.Tensor]]] = None,
763
+ use_cache: Optional[bool] = None,
764
+ output_attentions: Optional[bool] = None,
765
+ output_hidden_states: Optional[bool] = None,
766
+ labels: Optional[torch.Tensor] = None,
767
+ return_dict: Optional[bool] = None,
768
+ attention_mask: Optional[torch.Tensor] = None, # dummy parameter for text-generation pipeline
769
+ **kwargs,
770
+ ) -> Union[Tuple, CausalLMOutputWithPast]:
771
+ r"""
772
+ Args:
773
+ input_ids (`torch.Tensor` of shape `(batch_size, seq_len)`):
774
+ Indices of input sequence tokens in the vocabulary.
775
+
776
+ Indices can be obtained using [`CPMAntTokenizer`]. See [`PreTrainedTokenizer.encode`] and
777
+ [`PreTrainedTokenizer.__call__`] for details.
778
+
779
+ [What are input IDs?](../glossary#input-ids)
780
+ past_key_values (`tuple(tuple(torch.FloatTensor))`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`):
781
+ Contains pre-computed hidden-states (key and values in the self-attention blocks and in the
782
+ cross-attention blocks) that can be used (see `past_key_values` input) to speed up sequential decoding.
783
+ use_cache (`bool`, *optional*):
784
+ If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding
785
+ (see `past_key_values`).
786
+ output_attentions (`bool`, *optional*):
787
+ Whether or not to return the attentions tensors of all attention layers.
788
+ output_hidden_states (`bool`, *optional*):
789
+ Whether or not to return the hidden states of all layers.
790
+ labels (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*):
791
+ Labels for computing the masked language modeling loss.
792
+ return_dict (`bool`, *optional*):
793
+ Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
794
+ attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*):
795
+ CPMAnt will process attention mask automatically, this parameter is a dummy parameter for
796
+ text-generation pipeline.
797
+
798
+ Example:
799
+
800
+ Text Generation with CpmAntForCausalLM.
801
+ ```python
802
+ >>> from transformers import CPMAntTokenizer, CpmAntForCausalLM
803
+
804
+ >>> texts = "今天天气不错,"
805
+ >>> model = CpmAntForCausalLM.from_pretrained("openbmb/cpm-ant-10b")
806
+ >>> tokenizer = CPMAntTokenizer.from_pretrained("openbmb/cpm-ant-10b")
807
+ >>> input_ids = tokenizer(texts, return_tensors="pt")
808
+ >>> outputs = model.generate(**input_ids)
809
+ >>> output_texts = tokenizer.batch_decode(outputs)
810
+ >>> print(output_texts)
811
+ ['今天天气不错,阳光明媚,我和妈妈一起去超市买东西。\n在超市里,我看到了一个很好玩的玩具,它的名字叫“机器人”。它有一个圆圆的脑袋,两只圆圆的眼睛,还有一个圆圆的']
812
+ ```
813
+ """
814
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
815
+
816
+ model_output = self.cpmant(
817
+ input_ids, output_attentions, output_hidden_states, past_key_values, use_cache, return_dict
818
+ )
819
+ hidden_states = model_output.last_hidden_state if return_dict else model_output[0]
820
+
821
+ logits = self.lm_head(hidden_states)
822
+
823
+ loss = None
824
+ if labels is not None:
825
+ loss_func = CrossEntropyLoss()
826
+ loss = loss_func(logits.view(-1, logits.size(-1)), labels.view(-1))
827
+
828
+ if not return_dict:
829
+ output = (logits,) + model_output[1:]
830
+ return ((loss,) + output) if loss is not None else output
831
+
832
+ return CausalLMOutputWithPast(
833
+ loss=loss,
834
+ logits=logits,
835
+ past_key_values=model_output.past_key_values,
836
+ hidden_states=model_output.hidden_states,
837
+ attentions=model_output.attentions,
838
+ )
839
+
840
+ def get_input_embeddings(self):
841
+ return self.cpmant.input_embedding
842
+
843
+ def set_input_embeddings(self, embeddings):
844
+ self.cpmant.input_embedding = embeddings
845
+
846
+ def get_output_embeddings(self):
847
+ return self.lm_head
848
+
849
+ def set_output_embeddings(self, new_embeddings):
850
+ self.lm_head = new_embeddings
851
+
852
+ def _reorder_cache(self, past_key_values, beam_idx):
853
+ past_key_values = [list(each) if each is not None else each for each in past_key_values]
854
+ for key_value_layer in past_key_values:
855
+ key_value_layer[0] = key_value_layer[0][beam_idx]
856
+ key_value_layer[1] = key_value_layer[1][beam_idx]
857
+ return past_key_values
858
+
859
+
860
+ __all__ = ["CpmAntForCausalLM", "CpmAntModel", "CpmAntPreTrainedModel"]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/cpmant/tokenization_cpmant.py ADDED
@@ -0,0 +1,270 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2022 The OpenBMB Team and The HuggingFace Inc. team. All rights reserved.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """Tokenization classes for CPMAnt."""
16
+
17
+ import collections
18
+ import os
19
+ from typing import List, Optional, Tuple
20
+
21
+ from transformers.utils import is_jieba_available, requires_backends
22
+
23
+
24
+ if is_jieba_available():
25
+ import jieba
26
+
27
+ from ...tokenization_utils import PreTrainedTokenizer
28
+ from ...utils import logging
29
+
30
+
31
+ logger = logging.get_logger(__name__)
32
+
33
+ VOCAB_FILES_NAMES = {"vocab_file": "vocab.txt"}
34
+
35
+
36
+ def load_vocab(vocab_file):
37
+ """Loads a vocabulary file into a dictionary."""
38
+ vocab = collections.OrderedDict()
39
+ with open(vocab_file, "r", encoding="utf-8") as reader:
40
+ tokens = reader.readlines()
41
+ for index, token in enumerate(tokens):
42
+ token = token.rstrip("\n")
43
+ vocab[token] = index
44
+ return vocab
45
+
46
+
47
+ class WordpieceTokenizer:
48
+ def __init__(self, vocab, unk_token="<unk>", max_input_chars_per_word=200):
49
+ self.vocab = vocab
50
+ self.unk_token = unk_token
51
+ self.max_input_chars_per_word = max_input_chars_per_word
52
+
53
+ def tokenize(self, token):
54
+ chars = list(token)
55
+ if len(chars) > self.max_input_chars_per_word:
56
+ return [self.unk_token]
57
+
58
+ start = 0
59
+ sub_tokens = []
60
+ while start < len(chars):
61
+ end = len(chars)
62
+ cur_substr = None
63
+ while start < end:
64
+ substr = "".join(chars[start:end])
65
+ if substr in self.vocab:
66
+ cur_substr = substr
67
+ break
68
+ end -= 1
69
+ if cur_substr is None:
70
+ sub_tokens.append(self.unk_token)
71
+ start += 1
72
+ else:
73
+ sub_tokens.append(cur_substr)
74
+ start = end
75
+
76
+ return sub_tokens
77
+
78
+
79
+ class CpmAntTokenizer(PreTrainedTokenizer):
80
+ """
81
+ Construct a CPMAnt tokenizer. Based on byte-level Byte-Pair-Encoding.
82
+
83
+ Args:
84
+ vocab_file (`str`):
85
+ Path to the vocabulary file.
86
+ bod_token (`str`, *optional*, defaults to `"<d>"`):
87
+ The beginning of document token.
88
+ eod_token (`str`, *optional*, defaults to `"</d>"`):
89
+ The end of document token.
90
+ bos_token (`str`, *optional*, defaults to `"<s>"`):
91
+ The beginning of sequence token.
92
+ eos_token (`str`, *optional*, defaults to `"</s>"`):
93
+ The end of sequence token.
94
+ pad_token (`str`, *optional*, defaults to `"<pad>"`):
95
+ The token used for padding.
96
+ unk_token (`str`, *optional*, defaults to `"<unk>"`):
97
+ The unknown token.
98
+ line_token (`str`, *optional*, defaults to `"</n>"`):
99
+ The line token.
100
+ space_token (`str`, *optional*, defaults to `"</_>"`):
101
+ The space token.
102
+ """
103
+
104
+ vocab_files_names = VOCAB_FILES_NAMES
105
+ model_input_names = ["input_ids", "attention_mask"]
106
+ add_prefix_space = False
107
+
108
+ def __init__(
109
+ self,
110
+ vocab_file,
111
+ bod_token="<d>",
112
+ eod_token="</d>",
113
+ bos_token="<s>",
114
+ eos_token="</s>",
115
+ pad_token="<pad>",
116
+ unk_token="<unk>",
117
+ line_token="</n>",
118
+ space_token="</_>",
119
+ padding_side="left",
120
+ **kwargs,
121
+ ):
122
+ requires_backends(self, ["jieba"])
123
+ self.bod_token = bod_token
124
+ self.eod_token = eod_token
125
+ self.encoder = load_vocab(vocab_file)
126
+ self.encoder[" "] = self.encoder[space_token]
127
+ self.encoder["\n"] = self.encoder[line_token]
128
+
129
+ del self.encoder[space_token]
130
+ del self.encoder[line_token]
131
+
132
+ self.encoder = collections.OrderedDict(sorted(self.encoder.items(), key=lambda x: x[1]))
133
+ self.decoder = {v: k for k, v in self.encoder.items()}
134
+
135
+ self.wordpiece_tokenizer = WordpieceTokenizer(vocab=self.encoder, unk_token=unk_token)
136
+
137
+ super().__init__(
138
+ bod_token=bod_token,
139
+ eod_token=eod_token,
140
+ bos_token=bos_token,
141
+ eos_token=eos_token,
142
+ pad_token=pad_token,
143
+ unk_token=unk_token,
144
+ line_token=line_token,
145
+ space_token=space_token,
146
+ padding_side=padding_side,
147
+ **kwargs,
148
+ )
149
+
150
+ @property
151
+ def bod_token_id(self):
152
+ return self.encoder[self.bod_token]
153
+
154
+ @property
155
+ def eod_token_id(self):
156
+ return self.encoder[self.eod_token]
157
+
158
+ @property
159
+ def newline_id(self):
160
+ return self.encoder["\n"]
161
+
162
+ @property
163
+ def vocab_size(self) -> int:
164
+ return len(self.encoder)
165
+
166
+ def get_vocab(self):
167
+ return dict(self.encoder, **self.added_tokens_encoder)
168
+
169
+ def _tokenize(self, text):
170
+ """Tokenize a string."""
171
+ output_tokens = []
172
+ for x in jieba.cut(text, cut_all=False):
173
+ output_tokens.extend(self.wordpiece_tokenizer.tokenize(x))
174
+ return output_tokens
175
+
176
+ def _decode(self, token_ids, **kwargs):
177
+ """Decode ids into a string."""
178
+ token_ids = [i for i in token_ids if i >= 0]
179
+ token_ids = [
180
+ x for x in token_ids if x != self.pad_token_id and x != self.eos_token_id and x != self.bos_token_id
181
+ ]
182
+ return super()._decode(token_ids, **kwargs)
183
+
184
+ def check(self, token):
185
+ return token in self.encoder
186
+
187
+ def convert_tokens_to_string(self, tokens: List[str]) -> str:
188
+ return "".join(tokens)
189
+
190
+ def _convert_token_to_id(self, token):
191
+ """Converts a token (str) in an id using the vocab."""
192
+ return self.encoder.get(token, self.encoder.get(self.unk_token))
193
+
194
+ def _convert_id_to_token(self, index):
195
+ """Converts an index (integer) in a token (str) using the vocab."""
196
+ return self.decoder.get(index, self.unk_token)
197
+
198
+ def save_vocabulary(self, save_directory: str, filename_prefix: Optional[str] = None) -> Tuple[str]:
199
+ if os.path.isdir(save_directory):
200
+ vocab_file = os.path.join(
201
+ save_directory, (filename_prefix + "-" if filename_prefix else "") + VOCAB_FILES_NAMES["vocab_file"]
202
+ )
203
+ else:
204
+ vocab_file = (filename_prefix + "-" if filename_prefix else "") + save_directory
205
+ index = 0
206
+ if " " in self.encoder:
207
+ self.encoder["</_>"] = self.encoder[" "]
208
+ del self.encoder[" "]
209
+ if "\n" in self.encoder:
210
+ self.encoder["</n>"] = self.encoder["\n"]
211
+ del self.encoder["\n"]
212
+ self.encoder = collections.OrderedDict(sorted(self.encoder.items(), key=lambda x: x[1]))
213
+ with open(vocab_file, "w", encoding="utf-8") as writer:
214
+ for token, token_index in self.encoder.items():
215
+ if index != token_index:
216
+ logger.warning(
217
+ f"Saving vocabulary to {vocab_file}: vocabulary indices are not consecutive."
218
+ " Please check that the vocabulary is not corrupted!"
219
+ )
220
+ index = token_index
221
+ writer.write(token + "\n")
222
+ index += 1
223
+ return (vocab_file,)
224
+
225
+ def build_inputs_with_special_tokens(self, token_ids_0: List[int], token_ids_1: List[int] = None) -> List[int]:
226
+ """
227
+ Build model inputs from a sequence or a pair of sequence for sequence classification tasks by concatenating and
228
+ adding special tokens. A CPMAnt sequence has the following format:
229
+
230
+ - single sequence: `[BOS] Sequence`.
231
+
232
+ Args:
233
+ token_ids_0 (`List[int]`): The first tokenized sequence that special tokens will be added.
234
+ token_ids_1 (`List[int]`): The optional second tokenized sequence that special tokens will be added.
235
+
236
+ Returns:
237
+ `List[int]`: The model input with special tokens.
238
+ """
239
+ if token_ids_1 is None:
240
+ return [self.bos_token_id] + token_ids_0
241
+ return [self.bos_token_id] + token_ids_0 + [self.bos_token_id] + token_ids_1
242
+
243
+ def get_special_tokens_mask(
244
+ self, token_ids_0: List[int], token_ids_1: Optional[List[int]] = None, already_has_special_tokens: bool = False
245
+ ) -> List[int]:
246
+ """
247
+ Retrieve sequence ids from a token list that has no special tokens added. This method is called when adding
248
+ special tokens using the tokenizer `prepare_for_model` method.
249
+
250
+ Args:
251
+ token_ids_0 (`List[int]`): List of IDs.
252
+ token_ids_1 (`List[int]`, *optional*): Optional second list of IDs for sequence pairs.
253
+ already_has_special_tokens (`bool`, *optional*, defaults to `False`):
254
+ Whether or not the token list is already formatted with special tokens for the model.
255
+
256
+ Returns:
257
+ `List[int]`: A list of integers in the range [0, 1]: 1 for a special token, 0 for a sequence token.
258
+ """
259
+
260
+ if already_has_special_tokens:
261
+ return super().get_special_tokens_mask(
262
+ token_ids_0=token_ids_0, token_ids_1=token_ids_1, already_has_special_tokens=True
263
+ )
264
+
265
+ if token_ids_1 is not None:
266
+ return [1] + ([0] * len(token_ids_0)) + [1] + ([0] * len(token_ids_1))
267
+ return [1] + ([0] * len(token_ids_0))
268
+
269
+
270
+ __all__ = ["CpmAntTokenizer"]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/ctrl/__init__.py ADDED
@@ -0,0 +1,29 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # Copyright 2024 The HuggingFace Team. All rights reserved.
2
+ #
3
+ # Licensed under the Apache License, Version 2.0 (the "License");
4
+ # you may not use this file except in compliance with the License.
5
+ # You may obtain a copy of the License at
6
+ #
7
+ # http://www.apache.org/licenses/LICENSE-2.0
8
+ #
9
+ # Unless required by applicable law or agreed to in writing, software
10
+ # distributed under the License is distributed on an "AS IS" BASIS,
11
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12
+ # See the License for the specific language governing permissions and
13
+ # limitations under the License.
14
+ from typing import TYPE_CHECKING
15
+
16
+ from ...utils import _LazyModule
17
+ from ...utils.import_utils import define_import_structure
18
+
19
+
20
+ if TYPE_CHECKING:
21
+ from .configuration_ctrl import *
22
+ from .modeling_ctrl import *
23
+ from .modeling_tf_ctrl import *
24
+ from .tokenization_ctrl import *
25
+ else:
26
+ import sys
27
+
28
+ _file = globals()["__file__"]
29
+ sys.modules[__name__] = _LazyModule(__name__, _file, define_import_structure(_file), module_spec=__spec__)
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/ctrl/configuration_ctrl.py ADDED
@@ -0,0 +1,116 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2018 Salesforce and HuggingFace Inc. team.
3
+ # Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """Salesforce CTRL configuration"""
16
+
17
+ from ...configuration_utils import PretrainedConfig
18
+ from ...utils import logging
19
+
20
+
21
+ logger = logging.get_logger(__name__)
22
+
23
+
24
+ class CTRLConfig(PretrainedConfig):
25
+ """
26
+ This is the configuration class to store the configuration of a [`CTRLModel`] or a [`TFCTRLModel`]. It is used to
27
+ instantiate a CTRL model according to the specified arguments, defining the model architecture. Instantiating a
28
+ configuration with the defaults will yield a similar configuration to that of the
29
+ [Salesforce/ctrl](https://huggingface.co/Salesforce/ctrl) architecture from SalesForce.
30
+
31
+ Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
32
+ documentation from [`PretrainedConfig`] for more information.
33
+
34
+ Args:
35
+ vocab_size (`int`, *optional*, defaults to 246534):
36
+ Vocabulary size of the CTRL model. Defines the number of different tokens that can be represented by the
37
+ `inputs_ids` passed when calling [`CTRLModel`] or [`TFCTRLModel`].
38
+ n_positions (`int`, *optional*, defaults to 256):
39
+ The maximum sequence length that this model might ever be used with. Typically set this to something large
40
+ just in case (e.g., 512 or 1024 or 2048).
41
+ n_embd (`int`, *optional*, defaults to 1280):
42
+ Dimensionality of the embeddings and hidden states.
43
+ dff (`int`, *optional*, defaults to 8192):
44
+ Dimensionality of the inner dimension of the feed forward networks (FFN).
45
+ n_layer (`int`, *optional*, defaults to 48):
46
+ Number of hidden layers in the Transformer encoder.
47
+ n_head (`int`, *optional*, defaults to 16):
48
+ Number of attention heads for each attention layer in the Transformer encoder.
49
+ resid_pdrop (`float`, *optional*, defaults to 0.1):
50
+ The dropout probability for all fully connected layers in the embeddings, encoder, and pooler.
51
+ embd_pdrop (`int`, *optional*, defaults to 0.1):
52
+ The dropout ratio for the embeddings.
53
+ layer_norm_epsilon (`float`, *optional*, defaults to 1e-06):
54
+ The epsilon to use in the layer normalization layers
55
+ initializer_range (`float`, *optional*, defaults to 0.02):
56
+ The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
57
+ use_cache (`bool`, *optional*, defaults to `True`):
58
+ Whether or not the model should return the last key/values attentions (not used by all models).
59
+
60
+
61
+ Examples:
62
+
63
+ ```python
64
+ >>> from transformers import CTRLConfig, CTRLModel
65
+
66
+ >>> # Initializing a CTRL configuration
67
+ >>> configuration = CTRLConfig()
68
+
69
+ >>> # Initializing a model (with random weights) from the configuration
70
+ >>> model = CTRLModel(configuration)
71
+
72
+ >>> # Accessing the model configuration
73
+ >>> configuration = model.config
74
+ ```"""
75
+
76
+ model_type = "ctrl"
77
+ keys_to_ignore_at_inference = ["past_key_values"]
78
+ attribute_map = {
79
+ "max_position_embeddings": "n_positions",
80
+ "hidden_size": "n_embd",
81
+ "num_attention_heads": "n_head",
82
+ "num_hidden_layers": "n_layer",
83
+ }
84
+
85
+ def __init__(
86
+ self,
87
+ vocab_size=246534,
88
+ n_positions=256,
89
+ n_embd=1280,
90
+ dff=8192,
91
+ n_layer=48,
92
+ n_head=16,
93
+ resid_pdrop=0.1,
94
+ embd_pdrop=0.1,
95
+ layer_norm_epsilon=1e-6,
96
+ initializer_range=0.02,
97
+ use_cache=True,
98
+ **kwargs,
99
+ ):
100
+ self.vocab_size = vocab_size
101
+ self.n_positions = n_positions
102
+ self.n_embd = n_embd
103
+ self.n_layer = n_layer
104
+ self.n_head = n_head
105
+ self.dff = dff
106
+ self.resid_pdrop = resid_pdrop
107
+ self.embd_pdrop = embd_pdrop
108
+ self.layer_norm_epsilon = layer_norm_epsilon
109
+ self.initializer_range = initializer_range
110
+
111
+ self.use_cache = use_cache
112
+
113
+ super().__init__(**kwargs)
114
+
115
+
116
+ __all__ = ["CTRLConfig"]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/ctrl/modeling_ctrl.py ADDED
@@ -0,0 +1,844 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2018 Salesforce and HuggingFace Inc. team.
3
+ # Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.
4
+ #
5
+ # Licensed under the Apache License, Version 2.0 (the "License");
6
+ # you may not use this file except in compliance with the License.
7
+ # You may obtain a copy of the License at
8
+ #
9
+ # http://www.apache.org/licenses/LICENSE-2.0
10
+ #
11
+ # Unless required by applicable law or agreed to in writing, software
12
+ # distributed under the License is distributed on an "AS IS" BASIS,
13
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14
+ # See the License for the specific language governing permissions and
15
+ # limitations under the License.
16
+ """PyTorch CTRL model."""
17
+
18
+ from typing import Optional, Tuple, Union
19
+
20
+ import numpy as np
21
+ import torch
22
+ from torch import nn
23
+ from torch.nn import BCEWithLogitsLoss, CrossEntropyLoss, MSELoss
24
+
25
+ from ...generation import GenerationMixin
26
+ from ...modeling_outputs import BaseModelOutputWithPast, CausalLMOutputWithPast, SequenceClassifierOutput
27
+ from ...modeling_utils import PreTrainedModel
28
+ from ...pytorch_utils import Conv1D, find_pruneable_heads_and_indices, prune_linear_layer
29
+ from ...utils import add_start_docstrings, add_start_docstrings_to_model_forward, logging, replace_return_docstrings
30
+ from .configuration_ctrl import CTRLConfig
31
+
32
+
33
+ logger = logging.get_logger(__name__)
34
+
35
+ _CONFIG_FOR_DOC = "CTRLConfig"
36
+
37
+
38
+ def angle_defn(pos, i, d_model_size):
39
+ angle_rates = 1 / torch.pow(10000, (2 * (i // 2)) / d_model_size)
40
+ return pos * angle_rates
41
+
42
+
43
+ def positional_encoding(position, d_model_size, dtype):
44
+ # create the sinusoidal pattern for the positional encoding
45
+ angle_rads = angle_defn(
46
+ torch.arange(position, dtype=torch.int64).to(dtype).unsqueeze(1),
47
+ torch.arange(d_model_size, dtype=torch.int64).to(dtype).unsqueeze(0),
48
+ d_model_size,
49
+ )
50
+
51
+ sines = torch.sin(angle_rads[:, 0::2])
52
+ cosines = torch.cos(angle_rads[:, 1::2])
53
+
54
+ pos_encoding = torch.cat([sines, cosines], dim=-1)
55
+ return pos_encoding
56
+
57
+
58
+ def scaled_dot_product_attention(q, k, v, mask, attention_mask=None, head_mask=None):
59
+ # calculate attention
60
+ matmul_qk = torch.matmul(q, k.permute(0, 1, 3, 2))
61
+
62
+ dk = k.shape[-1]
63
+ scaled_attention_logits = matmul_qk / np.sqrt(dk)
64
+
65
+ if mask is not None:
66
+ nd, ns = scaled_attention_logits.size(-2), scaled_attention_logits.size(-1)
67
+ scaled_attention_logits += mask[ns - nd : ns, :ns] * -1e4
68
+
69
+ if attention_mask is not None:
70
+ # Apply the attention mask
71
+ scaled_attention_logits = scaled_attention_logits + attention_mask
72
+
73
+ attention_weights = torch.softmax(scaled_attention_logits, dim=-1)
74
+
75
+ # Mask heads if we want to
76
+ if head_mask is not None:
77
+ attention_weights = attention_weights * head_mask
78
+
79
+ output = torch.matmul(attention_weights, v)
80
+
81
+ return output, attention_weights
82
+
83
+
84
+ class MultiHeadAttention(nn.Module):
85
+ def __init__(self, d_model_size, num_heads):
86
+ super().__init__()
87
+ self.num_heads = num_heads
88
+ self.d_model_size = d_model_size
89
+
90
+ self.depth = int(d_model_size / self.num_heads)
91
+
92
+ self.Wq = nn.Linear(d_model_size, d_model_size)
93
+ self.Wk = nn.Linear(d_model_size, d_model_size)
94
+ self.Wv = nn.Linear(d_model_size, d_model_size)
95
+
96
+ self.dense = nn.Linear(d_model_size, d_model_size)
97
+ self.pruned_heads = set()
98
+
99
+ def prune_heads(self, heads):
100
+ attention_head_size = self.d_model_size // self.num_heads
101
+ if len(heads) == 0:
102
+ return
103
+ heads, index = find_pruneable_heads_and_indices(heads, self.num_heads, attention_head_size, self.pruned_heads)
104
+
105
+ # Prune linear layers
106
+ self.Wq = prune_linear_layer(self.Wq, index)
107
+ self.Wk = prune_linear_layer(self.Wk, index)
108
+ self.Wv = prune_linear_layer(self.Wv, index)
109
+ self.dense = prune_linear_layer(self.dense, index, dim=1)
110
+
111
+ # Update hyper params
112
+ self.num_heads = self.num_heads - len(heads)
113
+ self.d_model_size = attention_head_size * self.num_heads
114
+ self.pruned_heads = self.pruned_heads.union(heads)
115
+
116
+ def split_into_heads(self, x, batch_size):
117
+ x = x.reshape(batch_size, -1, self.num_heads, self.depth)
118
+ return x.permute([0, 2, 1, 3])
119
+
120
+ def forward(
121
+ self,
122
+ v,
123
+ k,
124
+ q,
125
+ mask,
126
+ layer_past=None,
127
+ attention_mask=None,
128
+ head_mask=None,
129
+ use_cache=False,
130
+ output_attentions=False,
131
+ ):
132
+ batch_size = q.shape[0]
133
+
134
+ q = self.Wq(q)
135
+ k = self.Wk(k)
136
+ v = self.Wv(v)
137
+
138
+ q = self.split_into_heads(q, batch_size)
139
+ k = self.split_into_heads(k, batch_size)
140
+ v = self.split_into_heads(v, batch_size)
141
+ if layer_past is not None:
142
+ past_key, past_value = layer_past[0], layer_past[1]
143
+ k = torch.cat((past_key, k), dim=-2)
144
+ v = torch.cat((past_value, v), dim=-2)
145
+
146
+ if use_cache is True:
147
+ present = torch.stack((k, v))
148
+ else:
149
+ present = (None,)
150
+
151
+ output = scaled_dot_product_attention(q, k, v, mask, attention_mask, head_mask)
152
+ scaled_attention = output[0].permute([0, 2, 1, 3])
153
+ attn = output[1]
154
+ original_size_attention = scaled_attention.reshape(batch_size, -1, self.d_model_size)
155
+ output = self.dense(original_size_attention)
156
+
157
+ outputs = (output, present)
158
+ if output_attentions:
159
+ outputs = outputs + (attn,)
160
+ return outputs
161
+
162
+
163
+ def point_wise_feed_forward_network(d_model_size, dff):
164
+ return nn.Sequential(nn.Linear(d_model_size, dff), nn.ReLU(), nn.Linear(dff, d_model_size))
165
+
166
+
167
+ class EncoderLayer(nn.Module):
168
+ def __init__(self, d_model_size, num_heads, dff, rate=0.1):
169
+ super().__init__()
170
+
171
+ self.multi_head_attention = MultiHeadAttention(d_model_size, num_heads)
172
+ self.ffn = point_wise_feed_forward_network(d_model_size, dff)
173
+
174
+ self.layernorm1 = nn.LayerNorm(d_model_size, eps=1e-6)
175
+ self.layernorm2 = nn.LayerNorm(d_model_size, eps=1e-6)
176
+
177
+ self.dropout1 = nn.Dropout(rate)
178
+ self.dropout2 = nn.Dropout(rate)
179
+
180
+ def forward(
181
+ self, x, mask, layer_past=None, attention_mask=None, head_mask=None, use_cache=False, output_attentions=False
182
+ ):
183
+ normed = self.layernorm1(x)
184
+ attn_outputs = self.multi_head_attention(
185
+ normed,
186
+ normed,
187
+ normed,
188
+ mask,
189
+ layer_past=layer_past,
190
+ attention_mask=attention_mask,
191
+ head_mask=head_mask,
192
+ use_cache=use_cache,
193
+ output_attentions=output_attentions,
194
+ )
195
+ attn_output = attn_outputs[0]
196
+ attn_output = self.dropout1(attn_output)
197
+ out1 = x + attn_output
198
+
199
+ out2 = self.layernorm2(out1)
200
+ ffn_output = self.ffn(out2)
201
+ ffn_output = self.dropout2(ffn_output)
202
+ out2 = out1 + ffn_output
203
+
204
+ outputs = (out2,) + attn_outputs[1:]
205
+ return outputs
206
+
207
+
208
+ class CTRLPreTrainedModel(PreTrainedModel):
209
+ """
210
+ An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained
211
+ models.
212
+ """
213
+
214
+ config_class = CTRLConfig
215
+ base_model_prefix = "transformer"
216
+
217
+ def _init_weights(self, module):
218
+ """Initialize the weights."""
219
+ if isinstance(module, (nn.Linear, Conv1D)):
220
+ # Slightly different from the TF version which uses truncated_normal for initialization
221
+ # cf https://github.com/pytorch/pytorch/pull/5617
222
+ module.weight.data.normal_(mean=0.0, std=self.config.initializer_range)
223
+ if module.bias is not None:
224
+ module.bias.data.zero_()
225
+ elif isinstance(module, nn.Embedding):
226
+ module.weight.data.normal_(mean=0.0, std=self.config.initializer_range)
227
+ if module.padding_idx is not None:
228
+ module.weight.data[module.padding_idx].zero_()
229
+ elif isinstance(module, nn.LayerNorm):
230
+ module.bias.data.zero_()
231
+ module.weight.data.fill_(1.0)
232
+
233
+
234
+ CTRL_START_DOCSTRING = r"""
235
+
236
+ This model inherits from [`PreTrainedModel`]. Check the superclass documentation for the generic methods the
237
+ library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads
238
+ etc.)
239
+
240
+ This model is also a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass.
241
+ Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage
242
+ and behavior.
243
+
244
+ Parameters:
245
+ config ([`CTRLConfig`]): Model configuration class with all the parameters of the model.
246
+ Initializing with a config file does not load the weights associated with the model, only the
247
+ configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights.
248
+ """
249
+
250
+ CTRL_INPUTS_DOCSTRING = r"""
251
+ Args:
252
+ input_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`):
253
+ `input_ids_length` = `sequence_length` if `past_key_values` is `None` else `past_key_values[0].shape[-2]`
254
+ (`sequence_length` of input past key value states). Indices of input sequence tokens in the vocabulary.
255
+
256
+ If `past_key_values` is used, only input IDs that do not have their past calculated should be passed as
257
+ `input_ids`.
258
+
259
+ Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.__call__`] and
260
+ [`PreTrainedTokenizer.encode`] for details.
261
+
262
+ [What are input IDs?](../glossary#input-ids)
263
+ past_key_values (`Tuple[Tuple[torch.FloatTensor]]` of length `config.n_layers`):
264
+ Contains pre-computed hidden-states (key and values in the attention blocks) as computed by the model (see
265
+ `past_key_values` output below). Can be used to speed up sequential decoding. The `input_ids` which have
266
+ their past given to this model should not be passed as input ids as they have already been computed.
267
+ attention_mask (`torch.FloatTensor` of shape `(batch_size, sequence_length)`, *optional*):
268
+ Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`:
269
+
270
+ - 1 for tokens that are **not masked**,
271
+ - 0 for tokens that are **masked**.
272
+
273
+ [What are attention masks?](../glossary#attention-mask)
274
+ token_type_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*):
275
+ Segment token indices to indicate first and second portions of the inputs. Indices are selected in `[0,
276
+ 1]`:
277
+
278
+ - 0 corresponds to a *sentence A* token,
279
+ - 1 corresponds to a *sentence B* token.
280
+
281
+ [What are token type IDs?](../glossary#token-type-ids)
282
+ position_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*):
283
+ Indices of positions of each input sequence tokens in the position embeddings. Selected in the range `[0,
284
+ config.max_position_embeddings - 1]`.
285
+
286
+ [What are position IDs?](../glossary#position-ids)
287
+ head_mask (`torch.FloatTensor` of shape `(num_heads,)` or `(num_layers, num_heads)`, *optional*):
288
+ Mask to nullify selected heads of the self-attention modules. Mask values selected in `[0, 1]`:
289
+
290
+ - 1 indicates the head is **not masked**,
291
+ - 0 indicates the head is **masked**.
292
+
293
+ inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*):
294
+ Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. This
295
+ is useful if you want more control over how to convert `input_ids` indices into associated vectors than the
296
+ model's internal embedding lookup matrix.
297
+ use_cache (`bool`, *optional*):
298
+ If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding (see
299
+ `past_key_values`).
300
+ output_attentions (`bool`, *optional*):
301
+ Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned
302
+ tensors for more detail.
303
+ output_hidden_states (`bool`, *optional*):
304
+ Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
305
+ more detail.
306
+ return_dict (`bool`, *optional*):
307
+ Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
308
+ """
309
+
310
+
311
+ @add_start_docstrings(
312
+ "The bare CTRL Model transformer outputting raw hidden-states without any specific head on top.",
313
+ CTRL_START_DOCSTRING,
314
+ )
315
+ class CTRLModel(CTRLPreTrainedModel):
316
+ def __init__(self, config):
317
+ super().__init__(config)
318
+
319
+ self.d_model_size = config.n_embd
320
+ self.num_layers = config.n_layer
321
+
322
+ self.pos_encoding = positional_encoding(config.n_positions, self.d_model_size, torch.float)
323
+
324
+ self.w = nn.Embedding(config.vocab_size, config.n_embd)
325
+
326
+ self.dropout = nn.Dropout(config.embd_pdrop)
327
+ self.h = nn.ModuleList(
328
+ [EncoderLayer(config.n_embd, config.n_head, config.dff, config.resid_pdrop) for _ in range(config.n_layer)]
329
+ )
330
+ self.layernorm = nn.LayerNorm(config.n_embd, eps=config.layer_norm_epsilon)
331
+
332
+ # Initialize weights and apply final processing
333
+ self.post_init()
334
+
335
+ def get_input_embeddings(self):
336
+ return self.w
337
+
338
+ def set_input_embeddings(self, new_embeddings):
339
+ self.w = new_embeddings
340
+
341
+ def _prune_heads(self, heads_to_prune):
342
+ """
343
+ Prunes heads of the model. heads_to_prune: dict of {layer_num: list of heads to prune in this layer}
344
+ """
345
+ for layer, heads in heads_to_prune.items():
346
+ self.h[layer].multi_head_attention.prune_heads(heads)
347
+
348
+ @add_start_docstrings_to_model_forward(CTRL_INPUTS_DOCSTRING)
349
+ @replace_return_docstrings(output_type=BaseModelOutputWithPast, config_class=_CONFIG_FOR_DOC)
350
+ def forward(
351
+ self,
352
+ input_ids: Optional[torch.LongTensor] = None,
353
+ past_key_values: Optional[Tuple[Tuple[torch.FloatTensor]]] = None,
354
+ attention_mask: Optional[torch.FloatTensor] = None,
355
+ token_type_ids: Optional[torch.LongTensor] = None,
356
+ position_ids: Optional[torch.LongTensor] = None,
357
+ head_mask: Optional[torch.FloatTensor] = None,
358
+ inputs_embeds: Optional[torch.FloatTensor] = None,
359
+ use_cache: Optional[bool] = None,
360
+ output_attentions: Optional[bool] = None,
361
+ output_hidden_states: Optional[bool] = None,
362
+ return_dict: Optional[bool] = None,
363
+ **kwargs, # NOOP kwargs, for now
364
+ ) -> Union[Tuple[torch.Tensor], BaseModelOutputWithPast]:
365
+ r"""
366
+ Returns:
367
+
368
+ Example:
369
+
370
+ ```python
371
+ >>> from transformers import AutoTokenizer, CTRLModel
372
+ >>> import torch
373
+
374
+ >>> tokenizer = AutoTokenizer.from_pretrained("Salesforce/ctrl")
375
+ >>> model = CTRLModel.from_pretrained("Salesforce/ctrl")
376
+
377
+ >>> # CTRL was trained with control codes as the first token
378
+ >>> inputs = tokenizer("Opinion My dog is cute", return_tensors="pt")
379
+ >>> assert inputs["input_ids"][0, 0].item() in tokenizer.control_codes.values()
380
+
381
+ >>> outputs = model(**inputs)
382
+
383
+ >>> last_hidden_states = outputs.last_hidden_state
384
+ >>> list(last_hidden_states.shape)
385
+ [1, 5, 1280]
386
+ ```"""
387
+ output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
388
+ use_cache = use_cache if use_cache is not None else self.config.use_cache
389
+ output_hidden_states = (
390
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
391
+ )
392
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
393
+
394
+ if input_ids is not None and inputs_embeds is not None:
395
+ raise ValueError("You cannot specify both input_ids and inputs_embeds at the same time")
396
+ elif input_ids is not None:
397
+ self.warn_if_padding_and_no_attention_mask(input_ids, attention_mask)
398
+ input_shape = input_ids.size()
399
+ input_ids = input_ids.view(-1, input_shape[-1])
400
+ batch_size = input_ids.shape[0]
401
+ elif inputs_embeds is not None:
402
+ input_shape = inputs_embeds.size()[:-1]
403
+ batch_size = inputs_embeds.shape[0]
404
+ else:
405
+ raise ValueError("You have to specify either input_ids or inputs_embeds")
406
+
407
+ device = input_ids.device if input_ids is not None else inputs_embeds.device
408
+
409
+ if past_key_values is None:
410
+ past_length = 0
411
+ past_key_values = tuple([None] * len(self.h))
412
+ else:
413
+ past_length = past_key_values[0][0].size(-2)
414
+ if position_ids is None:
415
+ position_ids = torch.arange(past_length, input_shape[-1] + past_length, dtype=torch.long, device=device)
416
+ position_ids = position_ids.unsqueeze(0)
417
+
418
+ # Attention mask.
419
+ if attention_mask is not None:
420
+ if batch_size <= 0:
421
+ raise ValueError("batch_size has to be defined and > 0")
422
+ attention_mask = attention_mask.view(batch_size, -1)
423
+ # We create a 3D attention mask from a 2D tensor mask.
424
+ # Sizes are [batch_size, 1, 1, to_seq_length]
425
+ # So we can broadcast to [batch_size, num_heads, from_seq_length, to_seq_length]
426
+ # this attention mask is more simple than the triangular masking of causal attention
427
+ # used in OpenAI GPT, we just need to prepare the broadcast dimension here.
428
+ attention_mask = attention_mask.unsqueeze(1).unsqueeze(2)
429
+
430
+ # Since attention_mask is 1.0 for positions we want to attend and 0.0 for
431
+ # masked positions, this operation will create a tensor which is 0.0 for
432
+ # positions we want to attend and the dtype's smallest value for masked positions.
433
+ # Since we are adding it to the raw scores before the softmax, this is
434
+ # effectively the same as removing these entirely.
435
+ attention_mask = attention_mask.to(dtype=self.dtype) # fp16 compatibility
436
+ attention_mask = (1.0 - attention_mask) * torch.finfo(self.dtype).min
437
+
438
+ # Prepare head mask if needed
439
+ head_mask = self.get_head_mask(head_mask, self.config.n_layer)
440
+
441
+ if token_type_ids is not None:
442
+ token_type_ids = token_type_ids.view(-1, input_shape[-1])
443
+ token_type_embeds = self.w(token_type_ids)
444
+ token_type_embeds *= np.sqrt(self.d_model_size)
445
+ else:
446
+ token_type_embeds = 0
447
+
448
+ if inputs_embeds is None:
449
+ inputs_embeds = self.w(input_ids)
450
+ # inputs_embeds = embedded.unsqueeze(0) if len(input_ids.shape)<2 else embedded
451
+ seq_len = input_shape[-1]
452
+ mask = torch.triu(torch.ones(seq_len + past_length, seq_len + past_length), 1).to(device)
453
+
454
+ inputs_embeds *= np.sqrt(self.d_model_size)
455
+
456
+ # `self.pos_encoding` won't be sent to the correct device along the model, so we do it manually.
457
+ self.pos_encoding = self.pos_encoding.to(device)
458
+ pos_embeds = self.pos_encoding[position_ids, :]
459
+
460
+ hidden_states = inputs_embeds + pos_embeds + token_type_embeds
461
+
462
+ hidden_states = self.dropout(hidden_states)
463
+
464
+ presents = () if use_cache else None
465
+ all_hidden_states = () if output_hidden_states else None
466
+ all_attentions = () if output_attentions else None
467
+ for i, (h, layer_past) in enumerate(zip(self.h, past_key_values)):
468
+ if output_hidden_states:
469
+ all_hidden_states = all_hidden_states + (hidden_states,)
470
+ outputs = h(
471
+ hidden_states,
472
+ mask,
473
+ layer_past=layer_past,
474
+ attention_mask=attention_mask,
475
+ head_mask=head_mask[i],
476
+ use_cache=use_cache,
477
+ output_attentions=output_attentions,
478
+ )
479
+ hidden_states, present = outputs[:2]
480
+ if use_cache is True:
481
+ presents = presents + (present,)
482
+
483
+ if output_attentions:
484
+ all_attentions += (outputs[2],)
485
+
486
+ hidden_states = self.layernorm(hidden_states)
487
+ if output_hidden_states:
488
+ all_hidden_states = all_hidden_states + (hidden_states,)
489
+
490
+ if not return_dict:
491
+ return tuple(v for v in [hidden_states, presents, all_hidden_states, all_attentions] if v is not None)
492
+
493
+ return BaseModelOutputWithPast(
494
+ last_hidden_state=hidden_states,
495
+ past_key_values=presents,
496
+ hidden_states=all_hidden_states,
497
+ attentions=all_attentions,
498
+ )
499
+
500
+
501
+ @add_start_docstrings(
502
+ """
503
+ The CTRL Model transformer with a language modeling head on top (linear layer with weights tied to the input
504
+ embeddings).
505
+ """,
506
+ CTRL_START_DOCSTRING,
507
+ )
508
+ class CTRLLMHeadModel(CTRLPreTrainedModel, GenerationMixin):
509
+ _tied_weights_keys = ["lm_head.weight"]
510
+
511
+ def __init__(self, config):
512
+ super().__init__(config)
513
+ self.transformer = CTRLModel(config)
514
+ self.lm_head = nn.Linear(config.n_embd, config.vocab_size, bias=True)
515
+
516
+ # Initialize weights and apply final processing
517
+ self.post_init()
518
+
519
+ def get_output_embeddings(self):
520
+ return self.lm_head
521
+
522
+ def set_output_embeddings(self, new_embeddings):
523
+ self.lm_head = new_embeddings
524
+
525
+ @add_start_docstrings_to_model_forward(CTRL_INPUTS_DOCSTRING)
526
+ @replace_return_docstrings(output_type=CausalLMOutputWithPast, config_class=_CONFIG_FOR_DOC)
527
+ def forward(
528
+ self,
529
+ input_ids: Optional[torch.LongTensor] = None,
530
+ past_key_values: Optional[Tuple[Tuple[torch.FloatTensor]]] = None,
531
+ attention_mask: Optional[torch.FloatTensor] = None,
532
+ token_type_ids: Optional[torch.LongTensor] = None,
533
+ position_ids: Optional[torch.LongTensor] = None,
534
+ head_mask: Optional[torch.FloatTensor] = None,
535
+ inputs_embeds: Optional[torch.FloatTensor] = None,
536
+ labels: Optional[torch.LongTensor] = None,
537
+ use_cache: Optional[bool] = None,
538
+ output_attentions: Optional[bool] = None,
539
+ output_hidden_states: Optional[bool] = None,
540
+ return_dict: Optional[bool] = None,
541
+ **kwargs,
542
+ ) -> Union[Tuple[torch.Tensor], CausalLMOutputWithPast]:
543
+ r"""
544
+ labels (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*):
545
+ Labels for language modeling. Note that the labels **are shifted** inside the model, i.e. you can set
546
+ `labels = input_ids` Indices are selected in `[-100, 0, ..., config.vocab_size]` All labels set to `-100`
547
+ are ignored (masked), the loss is only computed for labels in `[0, ..., config.vocab_size]`
548
+
549
+ Returns:
550
+
551
+ Example:
552
+
553
+ ```python
554
+ >>> import torch
555
+ >>> from transformers import AutoTokenizer, CTRLLMHeadModel
556
+
557
+ >>> tokenizer = AutoTokenizer.from_pretrained("Salesforce/ctrl")
558
+ >>> model = CTRLLMHeadModel.from_pretrained("Salesforce/ctrl")
559
+
560
+ >>> # CTRL was trained with control codes as the first token
561
+ >>> inputs = tokenizer("Wikipedia The llama is", return_tensors="pt")
562
+ >>> assert inputs["input_ids"][0, 0].item() in tokenizer.control_codes.values()
563
+
564
+ >>> sequence_ids = model.generate(inputs["input_ids"])
565
+ >>> sequences = tokenizer.batch_decode(sequence_ids)
566
+ >>> sequences
567
+ ['Wikipedia The llama is a member of the family Bovidae. It is native to the Andes of Peru,']
568
+
569
+ >>> outputs = model(**inputs, labels=inputs["input_ids"])
570
+ >>> round(outputs.loss.item(), 2)
571
+ 9.21
572
+
573
+ >>> list(outputs.logits.shape)
574
+ [1, 5, 246534]
575
+ ```"""
576
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
577
+
578
+ transformer_outputs = self.transformer(
579
+ input_ids,
580
+ past_key_values=past_key_values,
581
+ attention_mask=attention_mask,
582
+ token_type_ids=token_type_ids,
583
+ position_ids=position_ids,
584
+ head_mask=head_mask,
585
+ inputs_embeds=inputs_embeds,
586
+ use_cache=use_cache,
587
+ output_attentions=output_attentions,
588
+ output_hidden_states=output_hidden_states,
589
+ return_dict=return_dict,
590
+ )
591
+
592
+ hidden_states = transformer_outputs[0]
593
+
594
+ lm_logits = self.lm_head(hidden_states)
595
+
596
+ loss = None
597
+ if labels is not None:
598
+ loss = self.loss_function(
599
+ lm_logits,
600
+ labels,
601
+ vocab_size=self.config.vocab_size,
602
+ **kwargs,
603
+ )
604
+
605
+ if not return_dict:
606
+ output = (lm_logits,) + transformer_outputs[1:]
607
+ return ((loss,) + output) if loss is not None else output
608
+
609
+ return CausalLMOutputWithPast(
610
+ loss=loss,
611
+ logits=lm_logits,
612
+ past_key_values=transformer_outputs.past_key_values,
613
+ hidden_states=transformer_outputs.hidden_states,
614
+ attentions=transformer_outputs.attentions,
615
+ )
616
+
617
+ def prepare_inputs_for_generation(self, input_ids, past_key_values=None, use_cache=None, **kwargs):
618
+ # Overwritten -- inputs_embeds not working properly
619
+
620
+ # only last tokens for inputs_ids if past is defined in kwargs
621
+ if past_key_values is not None:
622
+ past_length = past_key_values[0][0].shape[2]
623
+
624
+ # Some generation methods already pass only the last input ID
625
+ if input_ids.shape[1] > past_length:
626
+ remove_prefix_length = past_length
627
+ else:
628
+ # Default to old behavior: keep only final ID
629
+ remove_prefix_length = input_ids.shape[1] - 1
630
+
631
+ input_ids = input_ids[:, remove_prefix_length:]
632
+
633
+ return {"input_ids": input_ids, "past_key_values": past_key_values, "use_cache": use_cache}
634
+
635
+ @staticmethod
636
+ def _reorder_cache(
637
+ past_key_values: Tuple[Tuple[torch.Tensor]], beam_idx: torch.Tensor
638
+ ) -> Tuple[Tuple[torch.Tensor]]:
639
+ """
640
+ This function is used to re-order the `past_key_values` cache if [`~PreTrainedModel.beam_search`] or
641
+ [`~PreTrainedModel.beam_sample`] is called. This is required to match `past_key_values` with the correct
642
+ beam_idx at every generation step.
643
+ """
644
+ return tuple(
645
+ tuple(past_state.index_select(0, beam_idx.to(past_state.device)) for past_state in layer_past)
646
+ for layer_past in past_key_values
647
+ )
648
+
649
+
650
+ @add_start_docstrings(
651
+ """
652
+ The CTRL Model transformer with a sequence classification head on top (linear layer).
653
+ [`CTRLForSequenceClassification`] uses the last token in order to do the classification, as other causal models
654
+ (e.g. GPT-2) do. Since it does classification on the last token, it requires to know the position of the last
655
+ token. If a `pad_token_id` is defined in the configuration, it finds the last token that is not a padding token in
656
+ each row. If no `pad_token_id` is defined, it simply takes the last value in each row of the batch. Since it cannot
657
+ guess the padding tokens when `inputs_embeds` are passed instead of `input_ids`, it does the same (take the last
658
+ value in each row of the batch).
659
+ """,
660
+ CTRL_START_DOCSTRING,
661
+ )
662
+ class CTRLForSequenceClassification(CTRLPreTrainedModel):
663
+ def __init__(self, config):
664
+ super().__init__(config)
665
+ self.num_labels = config.num_labels
666
+ self.transformer = CTRLModel(config)
667
+ self.classifier = nn.Linear(config.n_embd, self.num_labels, bias=False)
668
+
669
+ # Initialize weights and apply final processing
670
+ self.post_init()
671
+
672
+ @add_start_docstrings_to_model_forward(CTRL_INPUTS_DOCSTRING)
673
+ @replace_return_docstrings(output_type=SequenceClassifierOutput, config_class=_CONFIG_FOR_DOC)
674
+ def forward(
675
+ self,
676
+ input_ids: Optional[torch.LongTensor] = None,
677
+ past_key_values: Optional[Tuple[Tuple[torch.FloatTensor]]] = None,
678
+ attention_mask: Optional[torch.FloatTensor] = None,
679
+ token_type_ids: Optional[torch.LongTensor] = None,
680
+ position_ids: Optional[torch.LongTensor] = None,
681
+ head_mask: Optional[torch.FloatTensor] = None,
682
+ inputs_embeds: Optional[torch.FloatTensor] = None,
683
+ labels: Optional[torch.LongTensor] = None,
684
+ use_cache: Optional[bool] = None,
685
+ output_attentions: Optional[bool] = None,
686
+ output_hidden_states: Optional[bool] = None,
687
+ return_dict: Optional[bool] = None,
688
+ ) -> Union[Tuple[torch.Tensor], SequenceClassifierOutput]:
689
+ r"""
690
+ labels (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
691
+ Labels for computing the sequence classification/regression loss. Indices should be in `[0, ...,
692
+ config.num_labels - 1]`. If `config.num_labels == 1` a regression loss is computed (Mean-Square loss), If
693
+ `config.num_labels > 1` a classification loss is computed (Cross-Entropy).
694
+
695
+ Returns:
696
+
697
+ Example of single-label classification:
698
+
699
+ ```python
700
+ >>> import torch
701
+ >>> from transformers import AutoTokenizer, CTRLForSequenceClassification
702
+
703
+ >>> tokenizer = AutoTokenizer.from_pretrained("Salesforce/ctrl")
704
+ >>> model = CTRLForSequenceClassification.from_pretrained("Salesforce/ctrl")
705
+
706
+ >>> # CTRL was trained with control codes as the first token
707
+ >>> inputs = tokenizer("Opinion My dog is cute", return_tensors="pt")
708
+ >>> assert inputs["input_ids"][0, 0].item() in tokenizer.control_codes.values()
709
+
710
+ >>> with torch.no_grad():
711
+ ... logits = model(**inputs).logits
712
+
713
+ >>> predicted_class_id = logits.argmax().item()
714
+ >>> model.config.id2label[predicted_class_id]
715
+ 'LABEL_0'
716
+ ```
717
+
718
+ ```python
719
+ >>> import torch
720
+
721
+ >>> torch.manual_seed(42) # doctest: +IGNORE_RESULT
722
+ >>> # To train a model on `num_labels` classes, you can pass `num_labels=num_labels` to `.from_pretrained(...)`
723
+ >>> num_labels = len(model.config.id2label)
724
+ >>> model = CTRLForSequenceClassification.from_pretrained("Salesforce/ctrl", num_labels=num_labels)
725
+
726
+ >>> labels = torch.tensor(1)
727
+ >>> loss = model(**inputs, labels=labels).loss
728
+ >>> round(loss.item(), 2)
729
+ 0.93
730
+ ```
731
+
732
+ Example of multi-label classification:
733
+
734
+ ```python
735
+ >>> import torch
736
+ >>> from transformers import AutoTokenizer, CTRLForSequenceClassification
737
+
738
+ >>> tokenizer = AutoTokenizer.from_pretrained("Salesforce/ctrl")
739
+ >>> model = CTRLForSequenceClassification.from_pretrained(
740
+ ... "Salesforce/ctrl", problem_type="multi_label_classification"
741
+ ... )
742
+
743
+ >>> # CTRL was trained with control codes as the first token
744
+ >>> inputs = tokenizer("Opinion My dog is cute", return_tensors="pt")
745
+ >>> assert inputs["input_ids"][0, 0].item() in tokenizer.control_codes.values()
746
+
747
+ >>> with torch.no_grad():
748
+ ... logits = model(**inputs).logits
749
+
750
+ >>> predicted_class_id = logits.argmax().item()
751
+ >>> model.config.id2label[predicted_class_id]
752
+ 'LABEL_0'
753
+ ```
754
+
755
+ ```python
756
+ >>> # To train a model on `num_labels` classes, you can pass `num_labels=num_labels` to `.from_pretrained(...)`
757
+ >>> num_labels = len(model.config.id2label)
758
+ >>> model = CTRLForSequenceClassification.from_pretrained("Salesforce/ctrl", num_labels=num_labels)
759
+
760
+ >>> num_labels = len(model.config.id2label)
761
+ >>> labels = torch.nn.functional.one_hot(torch.tensor([predicted_class_id]), num_classes=num_labels).to(
762
+ ... torch.float
763
+ ... )
764
+ >>> loss = model(**inputs, labels=labels).loss
765
+ >>> loss.backward() # doctest: +IGNORE_RESULT
766
+ ```"""
767
+
768
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
769
+
770
+ transformer_outputs = self.transformer(
771
+ input_ids,
772
+ past_key_values=past_key_values,
773
+ attention_mask=attention_mask,
774
+ token_type_ids=token_type_ids,
775
+ position_ids=position_ids,
776
+ head_mask=head_mask,
777
+ inputs_embeds=inputs_embeds,
778
+ use_cache=use_cache,
779
+ output_attentions=output_attentions,
780
+ output_hidden_states=output_hidden_states,
781
+ return_dict=return_dict,
782
+ )
783
+
784
+ hidden_states = transformer_outputs[0]
785
+ logits = self.classifier(hidden_states)
786
+
787
+ if input_ids is not None:
788
+ batch_size, sequence_length = input_ids.shape[:2]
789
+ else:
790
+ batch_size, sequence_length = inputs_embeds.shape[:2]
791
+
792
+ if self.config.pad_token_id is None and batch_size != 1:
793
+ raise ValueError("Cannot handle batch sizes > 1 if no padding token is defined.")
794
+ if self.config.pad_token_id is None:
795
+ last_non_pad_token = -1
796
+ elif input_ids is not None:
797
+ # To handle both left- and right- padding, we take the rightmost token that is not equal to pad_token_id
798
+ non_pad_mask = (input_ids != self.config.pad_token_id).to(logits.device, torch.int32)
799
+ token_indices = torch.arange(input_ids.shape[-1], device=logits.device)
800
+ last_non_pad_token = (token_indices * non_pad_mask).argmax(-1)
801
+ else:
802
+ last_non_pad_token = -1
803
+ logger.warning_once(
804
+ f"{self.__class__.__name__} will not detect padding tokens in `inputs_embeds`. Results may be "
805
+ "unexpected if using padding tokens in conjunction with `inputs_embeds.`"
806
+ )
807
+
808
+ pooled_logits = logits[torch.arange(batch_size, device=logits.device), last_non_pad_token]
809
+
810
+ loss = None
811
+ if labels is not None:
812
+ if self.config.problem_type is None:
813
+ if self.num_labels == 1:
814
+ self.config.problem_type = "regression"
815
+ elif self.num_labels > 1 and (labels.dtype == torch.long or labels.dtype == torch.int):
816
+ self.config.problem_type = "single_label_classification"
817
+ else:
818
+ self.config.problem_type = "multi_label_classification"
819
+
820
+ if self.config.problem_type == "regression":
821
+ loss_fct = MSELoss()
822
+ if self.num_labels == 1:
823
+ loss = loss_fct(pooled_logits.squeeze(), labels.squeeze())
824
+ else:
825
+ loss = loss_fct(pooled_logits, labels)
826
+ elif self.config.problem_type == "single_label_classification":
827
+ loss_fct = CrossEntropyLoss()
828
+ loss = loss_fct(pooled_logits.view(-1, self.num_labels), labels.view(-1))
829
+ elif self.config.problem_type == "multi_label_classification":
830
+ loss_fct = BCEWithLogitsLoss()
831
+ loss = loss_fct(pooled_logits, labels)
832
+ if not return_dict:
833
+ output = (pooled_logits,) + transformer_outputs[2:]
834
+ return ((loss,) + output) if loss is not None else output
835
+
836
+ return SequenceClassifierOutput(
837
+ loss=loss,
838
+ logits=pooled_logits,
839
+ hidden_states=transformer_outputs.hidden_states,
840
+ attentions=transformer_outputs.attentions,
841
+ )
842
+
843
+
844
+ __all__ = ["CTRLForSequenceClassification", "CTRLLMHeadModel", "CTRLModel", "CTRLPreTrainedModel"]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/ctrl/modeling_tf_ctrl.py ADDED
@@ -0,0 +1,922 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2018 Salesforce and HuggingFace Inc. team.
3
+ # Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.
4
+ #
5
+ # Licensed under the Apache License, Version 2.0 (the "License");
6
+ # you may not use this file except in compliance with the License.
7
+ # You may obtain a copy of the License at
8
+ #
9
+ # http://www.apache.org/licenses/LICENSE-2.0
10
+ #
11
+ # Unless required by applicable law or agreed to in writing, software
12
+ # distributed under the License is distributed on an "AS IS" BASIS,
13
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14
+ # See the License for the specific language governing permissions and
15
+ # limitations under the License.
16
+ """TF 2.0 CTRL model."""
17
+
18
+ from __future__ import annotations
19
+
20
+ from typing import Optional, Tuple, Union
21
+
22
+ import numpy as np
23
+ import tensorflow as tf
24
+
25
+ from ...modeling_tf_outputs import TFBaseModelOutputWithPast, TFCausalLMOutputWithPast, TFSequenceClassifierOutput
26
+ from ...modeling_tf_utils import (
27
+ TFCausalLanguageModelingLoss,
28
+ TFModelInputType,
29
+ TFPreTrainedModel,
30
+ TFSequenceClassificationLoss,
31
+ get_initializer,
32
+ keras,
33
+ keras_serializable,
34
+ unpack_inputs,
35
+ )
36
+ from ...tf_utils import check_embeddings_within_bounds, shape_list, stable_softmax
37
+ from ...utils import add_code_sample_docstrings, add_start_docstrings, add_start_docstrings_to_model_forward, logging
38
+ from .configuration_ctrl import CTRLConfig
39
+
40
+
41
+ logger = logging.get_logger(__name__)
42
+
43
+ _CHECKPOINT_FOR_DOC = "Salesforce/ctrl"
44
+ _CONFIG_FOR_DOC = "CTRLConfig"
45
+
46
+
47
+ def angle_defn(pos, i, d_model_size):
48
+ angle_rates = 1 / np.power(10000, (2 * (i // 2)) / d_model_size)
49
+ return pos * angle_rates
50
+
51
+
52
+ def positional_encoding(position, d_model_size):
53
+ # create the sinusoidal pattern for the positional encoding
54
+ angle_rads = angle_defn(np.arange(position)[:, np.newaxis], np.arange(d_model_size)[np.newaxis, :], d_model_size)
55
+
56
+ sines = np.sin(angle_rads[:, 0::2])
57
+ cosines = np.cos(angle_rads[:, 1::2])
58
+ pos_encoding = tf.convert_to_tensor(np.concatenate([sines, cosines], axis=-1))
59
+
60
+ return pos_encoding
61
+
62
+
63
+ def scaled_dot_product_attention(q, k, v, mask, attention_mask=None, head_mask=None):
64
+ # calculate attention
65
+ matmul_qk = tf.matmul(q, k, transpose_b=True)
66
+
67
+ dk = tf.cast(shape_list(k)[-1], dtype=matmul_qk.dtype)
68
+ scaled_attention_logits = matmul_qk / tf.math.sqrt(dk)
69
+
70
+ if mask is not None:
71
+ scaled_attention_logits += tf.cast(mask * -1e4, dtype=scaled_attention_logits.dtype)
72
+
73
+ if attention_mask is not None:
74
+ # Apply the attention mask
75
+ attention_mask = tf.cast(attention_mask, dtype=scaled_attention_logits.dtype)
76
+ scaled_attention_logits = scaled_attention_logits + attention_mask
77
+
78
+ attention_weights = stable_softmax(scaled_attention_logits, axis=-1)
79
+
80
+ # Mask heads if we want to
81
+ if head_mask is not None:
82
+ attention_weights = attention_weights * head_mask
83
+
84
+ output = tf.matmul(attention_weights, v)
85
+
86
+ return output, attention_weights
87
+
88
+
89
+ class TFMultiHeadAttention(keras.layers.Layer):
90
+ def __init__(self, d_model_size, num_heads, output_attentions=False, **kwargs):
91
+ super().__init__(**kwargs)
92
+ self.num_heads = num_heads
93
+ self.d_model_size = d_model_size
94
+ self.output_attentions = output_attentions
95
+
96
+ self.depth = int(d_model_size / self.num_heads)
97
+
98
+ self.Wq = keras.layers.Dense(d_model_size, name="Wq")
99
+ self.Wk = keras.layers.Dense(d_model_size, name="Wk")
100
+ self.Wv = keras.layers.Dense(d_model_size, name="Wv")
101
+
102
+ self.dense = keras.layers.Dense(d_model_size, name="dense")
103
+
104
+ def split_into_heads(self, x, batch_size):
105
+ x = tf.reshape(x, (batch_size, -1, self.num_heads, self.depth))
106
+ return tf.transpose(x, perm=[0, 2, 1, 3])
107
+
108
+ def call(self, v, k, q, mask, layer_past, attention_mask, head_mask, use_cache, output_attentions, training=False):
109
+ batch_size = shape_list(q)[0]
110
+
111
+ q = self.Wq(q)
112
+ k = self.Wk(k)
113
+ v = self.Wv(v)
114
+
115
+ q = self.split_into_heads(q, batch_size)
116
+ k = self.split_into_heads(k, batch_size)
117
+ v = self.split_into_heads(v, batch_size)
118
+
119
+ if layer_past is not None:
120
+ past_key, past_value = tf.unstack(layer_past, axis=0)
121
+ k = tf.concat((past_key, k), axis=-2)
122
+ v = tf.concat((past_value, v), axis=-2)
123
+
124
+ if use_cache:
125
+ present = tf.stack((k, v), axis=0)
126
+ else:
127
+ present = (None,)
128
+
129
+ output = scaled_dot_product_attention(q, k, v, mask, attention_mask, head_mask)
130
+ scaled_attention = tf.transpose(output[0], perm=[0, 2, 1, 3])
131
+ attn = output[1]
132
+ original_size_attention = tf.reshape(scaled_attention, (batch_size, -1, self.d_model_size))
133
+ output = self.dense(original_size_attention)
134
+ outputs = (output, present)
135
+
136
+ if output_attentions:
137
+ outputs = outputs + (attn,)
138
+
139
+ return outputs
140
+
141
+ def build(self, input_shape=None):
142
+ if self.built:
143
+ return
144
+ self.built = True
145
+ if getattr(self, "Wq", None) is not None:
146
+ with tf.name_scope(self.Wq.name):
147
+ self.Wq.build([None, None, self.d_model_size])
148
+ if getattr(self, "Wk", None) is not None:
149
+ with tf.name_scope(self.Wk.name):
150
+ self.Wk.build([None, None, self.d_model_size])
151
+ if getattr(self, "Wv", None) is not None:
152
+ with tf.name_scope(self.Wv.name):
153
+ self.Wv.build([None, None, self.d_model_size])
154
+ if getattr(self, "dense", None) is not None:
155
+ with tf.name_scope(self.dense.name):
156
+ self.dense.build([None, None, self.d_model_size])
157
+
158
+
159
+ class TFPointWiseFeedForwardLayer(keras.layers.Layer):
160
+ def __init__(self, d_model_size, dff, **kwargs):
161
+ super().__init__(**kwargs)
162
+
163
+ self.dense_0 = keras.layers.Dense(dff, activation="relu", name="0")
164
+ self.dense_2 = keras.layers.Dense(d_model_size, name="2")
165
+ self.d_model_size = d_model_size
166
+ self.dff = dff
167
+
168
+ def call(self, inputs, trainable=False):
169
+ dense_0_output = self.dense_0(inputs)
170
+ dense_2_output = self.dense_2(dense_0_output)
171
+
172
+ return dense_2_output
173
+
174
+ def build(self, input_shape=None):
175
+ if self.built:
176
+ return
177
+ self.built = True
178
+ if getattr(self, "dense_0", None) is not None:
179
+ with tf.name_scope(self.dense_0.name):
180
+ self.dense_0.build([None, None, self.d_model_size])
181
+ if getattr(self, "dense_2", None) is not None:
182
+ with tf.name_scope(self.dense_2.name):
183
+ self.dense_2.build([None, None, self.dff])
184
+
185
+
186
+ class TFEncoderLayer(keras.layers.Layer):
187
+ def __init__(
188
+ self, d_model_size, num_heads, dff, rate=0.1, layer_norm_epsilon=1e-6, output_attentions=False, **kwargs
189
+ ):
190
+ super().__init__(**kwargs)
191
+
192
+ self.output_attentions = output_attentions
193
+
194
+ self.multi_head_attention = TFMultiHeadAttention(
195
+ d_model_size, num_heads, output_attentions=self.output_attentions, name="multi_head_attention"
196
+ )
197
+ self.ffn = TFPointWiseFeedForwardLayer(d_model_size, dff, name="ffn")
198
+
199
+ self.layernorm1 = keras.layers.LayerNormalization(epsilon=layer_norm_epsilon, name="layernorm1")
200
+ self.layernorm2 = keras.layers.LayerNormalization(epsilon=layer_norm_epsilon, name="layernorm2")
201
+
202
+ self.dropout1 = keras.layers.Dropout(rate)
203
+ self.dropout2 = keras.layers.Dropout(rate)
204
+ self.d_model_size = d_model_size
205
+
206
+ def call(self, x, mask, layer_past, attention_mask, head_mask, use_cache, output_attentions, training=False):
207
+ normed = self.layernorm1(x)
208
+ attn_outputs = self.multi_head_attention(
209
+ normed,
210
+ normed,
211
+ normed,
212
+ mask,
213
+ layer_past,
214
+ attention_mask,
215
+ head_mask,
216
+ use_cache,
217
+ output_attentions,
218
+ training=training,
219
+ )
220
+ attn_output = attn_outputs[0]
221
+ attn_output = self.dropout1(attn_output, training=training)
222
+ out1 = x + attn_output
223
+
224
+ out2 = self.layernorm2(out1)
225
+ ffn_output = self.ffn(out2)
226
+ ffn_output = self.dropout2(ffn_output, training=training)
227
+ out2 = out1 + ffn_output
228
+
229
+ outputs = (out2,) + attn_outputs[1:]
230
+ return outputs
231
+
232
+ def build(self, input_shape=None):
233
+ if self.built:
234
+ return
235
+ self.built = True
236
+ if getattr(self, "multi_head_attention", None) is not None:
237
+ with tf.name_scope(self.multi_head_attention.name):
238
+ self.multi_head_attention.build(None)
239
+ if getattr(self, "ffn", None) is not None:
240
+ with tf.name_scope(self.ffn.name):
241
+ self.ffn.build(None)
242
+ if getattr(self, "layernorm1", None) is not None:
243
+ with tf.name_scope(self.layernorm1.name):
244
+ self.layernorm1.build([None, None, self.d_model_size])
245
+ if getattr(self, "layernorm2", None) is not None:
246
+ with tf.name_scope(self.layernorm2.name):
247
+ self.layernorm2.build([None, None, self.d_model_size])
248
+
249
+
250
+ @keras_serializable
251
+ class TFCTRLMainLayer(keras.layers.Layer):
252
+ config_class = CTRLConfig
253
+
254
+ def __init__(self, config, **kwargs):
255
+ super().__init__(**kwargs)
256
+
257
+ self.config = config
258
+ self.output_hidden_states = config.output_hidden_states
259
+ self.output_attentions = config.output_attentions
260
+ self.use_cache = config.use_cache
261
+ self.return_dict = config.use_return_dict
262
+
263
+ self.d_model_size = config.n_embd
264
+ self.num_layers = config.n_layer
265
+
266
+ self.pos_encoding = positional_encoding(config.n_positions, self.d_model_size)
267
+
268
+ self.w = keras.layers.Embedding(
269
+ input_dim=config.vocab_size,
270
+ output_dim=config.n_embd,
271
+ embeddings_initializer=get_initializer(config.initializer_range),
272
+ name="w",
273
+ )
274
+
275
+ self.dropout = keras.layers.Dropout(config.embd_pdrop)
276
+ self.h = [
277
+ TFEncoderLayer(
278
+ config.n_embd,
279
+ config.n_head,
280
+ config.dff,
281
+ config.resid_pdrop,
282
+ config.layer_norm_epsilon,
283
+ self.output_attentions,
284
+ name=f"h_._{i}",
285
+ )
286
+ for i in range(config.n_layer)
287
+ ]
288
+ self.layernorm = keras.layers.LayerNormalization(epsilon=config.layer_norm_epsilon, name="layernorm")
289
+
290
+ def get_input_embeddings(self):
291
+ return self.w
292
+
293
+ def set_input_embeddings(self, new_embeddings):
294
+ self.w = new_embeddings
295
+
296
+ def _prune_heads(self, heads_to_prune):
297
+ """
298
+ Prunes heads of the model. heads_to_prune: dict of {layer_num: list of heads to prune in this layer}
299
+ """
300
+ raise NotImplementedError
301
+
302
+ @unpack_inputs
303
+ def call(
304
+ self,
305
+ input_ids: TFModelInputType | None = None,
306
+ past_key_values: Optional[Tuple[Tuple[Union[np.ndarray, tf.Tensor]]]] = None,
307
+ attention_mask: np.ndarray | tf.Tensor | None = None,
308
+ token_type_ids: np.ndarray | tf.Tensor | None = None,
309
+ position_ids: np.ndarray | tf.Tensor | None = None,
310
+ head_mask: np.ndarray | tf.Tensor | None = None,
311
+ inputs_embeds: np.ndarray | tf.Tensor | None = None,
312
+ use_cache: Optional[bool] = None,
313
+ output_attentions: Optional[bool] = None,
314
+ output_hidden_states: Optional[bool] = None,
315
+ return_dict: Optional[bool] = None,
316
+ training: Optional[bool] = False,
317
+ ) -> Union[Tuple, TFBaseModelOutputWithPast]:
318
+ # If using past key value states, only the last tokens
319
+ # should be given as an input
320
+ if past_key_values is not None:
321
+ if input_ids is not None:
322
+ input_ids = input_ids[:, -1:]
323
+ if inputs_embeds is not None:
324
+ inputs_embeds = inputs_embeds[:, -1:]
325
+ if token_type_ids is not None:
326
+ token_type_ids = token_type_ids[:, -1:]
327
+
328
+ if input_ids is not None and inputs_embeds is not None:
329
+ raise ValueError("You cannot specify both input_ids and inputs_embeds at the same time")
330
+ elif input_ids is not None:
331
+ input_shape = shape_list(input_ids)
332
+ input_ids = tf.reshape(input_ids, [-1, input_shape[-1]])
333
+ elif inputs_embeds is not None:
334
+ input_shape = shape_list(inputs_embeds)[:-1]
335
+ else:
336
+ raise ValueError("You have to specify either input_ids or inputs_embeds")
337
+
338
+ if past_key_values is None:
339
+ past_length = 0
340
+ past_key_values = [None] * len(self.h)
341
+ else:
342
+ past_length = shape_list(past_key_values[0][0])[-2]
343
+ if position_ids is None:
344
+ position_ids = tf.expand_dims(tf.range(past_length, input_shape[-1] + past_length, dtype=tf.int32), axis=0)
345
+ position_ids = tf.tile(position_ids, [input_shape[0], 1])
346
+
347
+ # Attention mask.
348
+ if attention_mask is not None:
349
+ # We create a 3D attention mask from a 2D tensor mask.
350
+ # Sizes are [batch_size, 1, 1, to_seq_length]
351
+ # So we can broadcast to [batch_size, num_heads, from_seq_length, to_seq_length]
352
+ # this attention mask is more simple than the triangular masking of causal attention
353
+ # used in OpenAI GPT, we just need to prepare the broadcast dimension here.
354
+ attention_mask = tf.reshape(attention_mask, (input_shape[0], 1, 1, input_shape[1] + past_length))
355
+
356
+ # Since attention_mask is 1.0 for positions we want to attend and 0.0 for
357
+ # masked positions, this operation will create a tensor which is 0.0 for
358
+ # positions we want to attend and -10000.0 for masked positions.
359
+ # Since we are adding it to the raw scores before the softmax, this is
360
+ # effectively the same as removing these entirely.
361
+
362
+ one_cst = tf.constant(1.0)
363
+ ten_thousand_cst = tf.constant(-10000.0)
364
+ attention_mask = tf.cast(attention_mask, dtype=one_cst.dtype)
365
+ attention_mask = tf.multiply(tf.subtract(one_cst, attention_mask), ten_thousand_cst)
366
+
367
+ # Prepare head mask if needed
368
+ # 1.0 in head_mask indicate we keep the head
369
+ # attention_probs has shape bsz x n_heads x N x N
370
+ # head_mask has shape n_layer x batch x n_heads x N x N
371
+ if head_mask is not None:
372
+ raise NotImplementedError
373
+ else:
374
+ head_mask = [None] * self.num_layers
375
+
376
+ if token_type_ids is not None:
377
+ token_type_ids = tf.reshape(token_type_ids, [-1, shape_list(token_type_ids)[-1]])
378
+ token_type_embeds = self.w(token_type_ids)
379
+ token_type_embeds *= tf.math.sqrt(tf.cast(self.d_model_size, dtype=token_type_embeds.dtype))
380
+ else:
381
+ token_type_embeds = tf.constant(0.0)
382
+ position_ids = tf.reshape(position_ids, [-1, shape_list(position_ids)[-1]])
383
+
384
+ if inputs_embeds is None:
385
+ check_embeddings_within_bounds(input_ids, self.w.input_dim)
386
+ inputs_embeds = self.w(input_ids)
387
+ seq_len = input_shape[-1]
388
+ mask = 1 - tf.linalg.band_part(tf.ones((seq_len, seq_len)), -1, 0)
389
+
390
+ inputs_embeds *= tf.math.sqrt(tf.cast(self.d_model_size, inputs_embeds.dtype))
391
+
392
+ pos_embeds = tf.gather(self.pos_encoding, position_ids)
393
+ pos_embeds = tf.cast(pos_embeds, dtype=token_type_embeds.dtype)
394
+ hidden_states = inputs_embeds + pos_embeds + token_type_embeds
395
+
396
+ hidden_states = self.dropout(hidden_states, training=training)
397
+
398
+ output_shape = input_shape + [shape_list(hidden_states)[-1]]
399
+ presents = () if use_cache else None
400
+ all_hidden_states = () if output_hidden_states else None
401
+ all_attentions = () if output_attentions else None
402
+ for i, (h, layer_past) in enumerate(zip(self.h, past_key_values)):
403
+ if output_hidden_states:
404
+ all_hidden_states = all_hidden_states + (tf.reshape(hidden_states, output_shape),)
405
+ outputs = h(
406
+ hidden_states,
407
+ mask,
408
+ layer_past,
409
+ attention_mask,
410
+ head_mask[i],
411
+ use_cache,
412
+ output_attentions,
413
+ training=training,
414
+ )
415
+ hidden_states, present = outputs[:2]
416
+
417
+ if use_cache:
418
+ presents = presents + (present,)
419
+
420
+ if output_attentions:
421
+ all_attentions = all_attentions + (outputs[2],)
422
+
423
+ hidden_states = self.layernorm(hidden_states)
424
+ hidden_states = tf.reshape(hidden_states, output_shape)
425
+ if output_hidden_states:
426
+ all_hidden_states = all_hidden_states + (hidden_states,)
427
+
428
+ if output_attentions:
429
+ # let the number of heads free (-1) so we can extract attention even after head pruning
430
+ attention_output_shape = input_shape[:-1] + [-1] + shape_list(all_attentions[0])[-2:]
431
+ all_attentions = tuple(tf.reshape(t, attention_output_shape) for t in all_attentions)
432
+
433
+ if not return_dict:
434
+ return tuple(v for v in [hidden_states, presents, all_hidden_states, all_attentions] if v is not None)
435
+
436
+ return TFBaseModelOutputWithPast(
437
+ last_hidden_state=hidden_states,
438
+ past_key_values=presents,
439
+ hidden_states=all_hidden_states,
440
+ attentions=all_attentions,
441
+ )
442
+
443
+ def build(self, input_shape=None):
444
+ if self.built:
445
+ return
446
+ self.built = True
447
+ if getattr(self, "w", None) is not None:
448
+ with tf.name_scope(self.w.name):
449
+ self.w.build(None)
450
+ if getattr(self, "layernorm", None) is not None:
451
+ with tf.name_scope(self.layernorm.name):
452
+ self.layernorm.build([None, None, self.config.n_embd])
453
+ if getattr(self, "h", None) is not None:
454
+ for layer in self.h:
455
+ with tf.name_scope(layer.name):
456
+ layer.build(None)
457
+
458
+
459
+ class TFCTRLPreTrainedModel(TFPreTrainedModel):
460
+ """
461
+ An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained
462
+ models.
463
+ """
464
+
465
+ config_class = CTRLConfig
466
+ base_model_prefix = "transformer"
467
+
468
+
469
+ CTRL_START_DOCSTRING = r"""
470
+
471
+ This model inherits from [`TFPreTrainedModel`]. Check the superclass documentation for the generic methods the
472
+ library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads
473
+ etc.)
474
+
475
+ This model is also a [keras.Model](https://www.tensorflow.org/api_docs/python/tf/keras/Model) subclass. Use it
476
+ as a regular TF 2.0 Keras Model and refer to the TF 2.0 documentation for all matter related to general usage and
477
+ behavior.
478
+
479
+ <Tip>
480
+
481
+ TensorFlow models and layers in `transformers` accept two formats as input:
482
+
483
+ - having all inputs as keyword arguments (like PyTorch models), or
484
+ - having all inputs as a list, tuple or dict in the first positional argument.
485
+
486
+ The reason the second format is supported is that Keras methods prefer this format when passing inputs to models
487
+ and layers. Because of this support, when using methods like `model.fit()` things should "just work" for you - just
488
+ pass your inputs and labels in any format that `model.fit()` supports! If, however, you want to use the second
489
+ format outside of Keras methods like `fit()` and `predict()`, such as when creating your own layers or models with
490
+ the Keras `Functional` API, there are three possibilities you can use to gather all the input Tensors in the first
491
+ positional argument:
492
+
493
+ - a single Tensor with `input_ids` only and nothing else: `model(input_ids)`
494
+ - a list of varying length with one or several input Tensors IN THE ORDER given in the docstring:
495
+ `model([input_ids, attention_mask])` or `model([input_ids, attention_mask, token_type_ids])`
496
+ - a dictionary with one or several input Tensors associated to the input names given in the docstring:
497
+ `model({"input_ids": input_ids, "token_type_ids": token_type_ids})`
498
+
499
+ Note that when creating models and layers with
500
+ [subclassing](https://keras.io/guides/making_new_layers_and_models_via_subclassing/) then you don't need to worry
501
+ about any of this, as you can just pass inputs like you would to any other Python function!
502
+
503
+ </Tip>
504
+
505
+ Parameters:
506
+ config ([`CTRLConfig`]): Model configuration class with all the parameters of the model.
507
+ Initializing with a config file does not load the weights associated with the model, only the
508
+ configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights.
509
+ """
510
+
511
+ CTRL_INPUTS_DOCSTRING = r"""
512
+ Args:
513
+ input_ids (`Numpy array` or `tf.Tensor` of shape `(batch_size, input_ids_length)`):
514
+ `input_ids_length` = `sequence_length` if `past` is `None` else `past[0].shape[-2]` (`sequence_length` of
515
+ input past key value states).
516
+
517
+ Indices of input sequence tokens in the vocabulary.
518
+
519
+ If `past` is used, only input IDs that do not have their past calculated should be passed as `input_ids`.
520
+
521
+ Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.__call__`] and
522
+ [`PreTrainedTokenizer.encode`] for details.
523
+
524
+ [What are input IDs?](../glossary#input-ids)
525
+ past (`List[tf.Tensor]` of length `config.n_layers`):
526
+ Contains pre-computed hidden-states (key and values in the attention blocks) as computed by the model (see
527
+ `past` output below). Can be used to speed up sequential decoding. The token ids which have their past
528
+ given to this model should not be passed as input ids as they have already been computed.
529
+ attention_mask (`tf.Tensor` or `Numpy array` of shape `(batch_size, sequence_length)`, *optional*):
530
+ Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`:
531
+
532
+ - 1 for tokens that are **not masked**,
533
+ - 0 for tokens that are **masked**.
534
+
535
+ [What are attention masks?](../glossary#attention-mask)
536
+ token_type_ids (`tf.Tensor` or `Numpy array` of shape `(batch_size, sequence_length)`, *optional*):
537
+ Segment token indices to indicate first and second portions of the inputs. Indices are selected in `[0,
538
+ 1]`:
539
+
540
+ - 0 corresponds to a *sentence A* token,
541
+ - 1 corresponds to a *sentence B* token.
542
+
543
+ [What are token type IDs?](../glossary#token-type-ids)
544
+ position_ids (`tf.Tensor` or `Numpy array` of shape `(batch_size, sequence_length)`, *optional*):
545
+ Indices of positions of each input sequence tokens in the position embeddings. Selected in the range `[0,
546
+ config.max_position_embeddings - 1]`.
547
+
548
+ [What are position IDs?](../glossary#position-ids)
549
+ head_mask (`torch.FloatTensor` of shape `(num_heads,)` or `(num_layers, num_heads)`, *optional*):
550
+ Mask to nullify selected heads of the self-attention modules. Mask values selected in `[0, 1]`:
551
+
552
+ - 1 indicates the head is **not masked**,
553
+ - 0 indicates the head is **masked**.
554
+
555
+ inputs_embeds (`tf.Tensor` or `Numpy array` of shape `(batch_size, sequence_length, hidden_size)`, *optional*):
556
+ Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. This
557
+ is useful if you want more control over how to convert `input_ids` indices into associated vectors than the
558
+ model's internal embedding lookup matrix.
559
+ use_cache (`bool`, *optional*):
560
+ If set to `True`, `past` key value states are returned and can be used to speed up decoding (see `past`).
561
+ output_attentions (`bool`, *optional*):
562
+ Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned
563
+ tensors for more detail. This argument can be used only in eager mode, in graph mode the value in the
564
+ config will be used instead.
565
+ output_hidden_states (`bool`, *optional*):
566
+ Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
567
+ more detail. This argument can be used only in eager mode, in graph mode the value in the config will be
568
+ used instead.
569
+ return_dict (`bool`, *optional*):
570
+ Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. This argument can be used in
571
+ eager mode, in graph mode the value will always be set to True.
572
+ training (`bool`, *optional*, defaults to `False`):
573
+ Whether or not to use the model in training mode (some modules like dropout modules have different
574
+ behaviors between training and evaluation).
575
+ """
576
+
577
+
578
+ @add_start_docstrings(
579
+ "The bare CTRL Model transformer outputting raw hidden-states without any specific head on top.",
580
+ CTRL_START_DOCSTRING,
581
+ )
582
+ class TFCTRLModel(TFCTRLPreTrainedModel):
583
+ def __init__(self, config, *inputs, **kwargs):
584
+ super().__init__(config, *inputs, **kwargs)
585
+ self.transformer = TFCTRLMainLayer(config, name="transformer")
586
+
587
+ @unpack_inputs
588
+ @add_start_docstrings_to_model_forward(CTRL_INPUTS_DOCSTRING)
589
+ @add_code_sample_docstrings(
590
+ checkpoint=_CHECKPOINT_FOR_DOC,
591
+ output_type=TFBaseModelOutputWithPast,
592
+ config_class=_CONFIG_FOR_DOC,
593
+ )
594
+ def call(
595
+ self,
596
+ input_ids: TFModelInputType | None = None,
597
+ past_key_values: Optional[Tuple[Tuple[Union[np.ndarray, tf.Tensor]]]] = None,
598
+ attention_mask: np.ndarray | tf.Tensor | None = None,
599
+ token_type_ids: np.ndarray | tf.Tensor | None = None,
600
+ position_ids: np.ndarray | tf.Tensor | None = None,
601
+ head_mask: np.ndarray | tf.Tensor | None = None,
602
+ inputs_embeds: np.ndarray | tf.Tensor | None = None,
603
+ use_cache: Optional[bool] = None,
604
+ output_attentions: Optional[bool] = None,
605
+ output_hidden_states: Optional[bool] = None,
606
+ return_dict: Optional[bool] = None,
607
+ training: Optional[bool] = False,
608
+ ) -> Union[Tuple, TFBaseModelOutputWithPast]:
609
+ outputs = self.transformer(
610
+ input_ids=input_ids,
611
+ past_key_values=past_key_values,
612
+ attention_mask=attention_mask,
613
+ token_type_ids=token_type_ids,
614
+ position_ids=position_ids,
615
+ head_mask=head_mask,
616
+ inputs_embeds=inputs_embeds,
617
+ use_cache=use_cache,
618
+ output_attentions=output_attentions,
619
+ output_hidden_states=output_hidden_states,
620
+ return_dict=return_dict,
621
+ training=training,
622
+ )
623
+ return outputs
624
+
625
+ def build(self, input_shape=None):
626
+ if self.built:
627
+ return
628
+ self.built = True
629
+ if getattr(self, "transformer", None) is not None:
630
+ with tf.name_scope(self.transformer.name):
631
+ self.transformer.build(None)
632
+
633
+
634
+ class TFCTRLBiasLayer(keras.layers.Layer):
635
+ """
636
+ Bias as a layer. It is used for serialization purposes: `keras.Model.save_weights` stores on a per-layer basis,
637
+ so all weights have to be registered in a layer.
638
+ """
639
+
640
+ def __init__(self, shape, initializer, trainable, name, **kwargs):
641
+ super().__init__(name=name, **kwargs)
642
+ self.shape = shape
643
+ self.initializer = initializer
644
+ self.trainable = trainable
645
+
646
+ def build(self, input_shape):
647
+ self.bias = self.add_weight(
648
+ name="bias", shape=self.shape, initializer=self.initializer, trainable=self.trainable
649
+ )
650
+ super().build(input_shape)
651
+
652
+ def call(self, x):
653
+ return x + self.bias
654
+
655
+
656
+ @add_start_docstrings(
657
+ """
658
+ The CTRL Model transformer with a language modeling head on top (linear layer with weights tied to the input
659
+ embeddings).
660
+ """,
661
+ CTRL_START_DOCSTRING,
662
+ )
663
+ class TFCTRLLMHeadModel(TFCTRLPreTrainedModel, TFCausalLanguageModelingLoss):
664
+ def __init__(self, config, *inputs, **kwargs):
665
+ super().__init__(config, *inputs, **kwargs)
666
+ self.transformer = TFCTRLMainLayer(config, name="transformer")
667
+ self.bias_layer = TFCTRLBiasLayer(
668
+ name="lm_head", shape=[1, config.vocab_size], initializer="zeros", trainable=True
669
+ )
670
+
671
+ def get_output_embeddings(self):
672
+ return self.get_input_embeddings()
673
+
674
+ def set_output_embeddings(self, value):
675
+ self.set_input_embeddings(value)
676
+
677
+ def get_bias(self):
678
+ return {"lm_head.bias": self.bias_layer.bias}
679
+
680
+ def set_bias(self, value):
681
+ # Replaces the existing layers containing bias for correct (de)serialization.
682
+ vocab_size = value["lm_head.bias"].shape[-1]
683
+ self.bias_layer = TFCTRLBiasLayer(
684
+ name="final_logits_bias", shape=[1, vocab_size], initializer="zeros", trainable=True
685
+ )
686
+ self.bias_layer.build(None)
687
+ self.bias_layer.bias.assign(value["lm_head.bias"])
688
+
689
+ # Copied from transformers.models.gpt2.modeling_tf_gpt2.TFGPT2LMHeadModel.prepare_inputs_for_generation
690
+ def prepare_inputs_for_generation(self, inputs, past_key_values=None, use_cache=None, **kwargs):
691
+ token_type_ids = kwargs.get("token_type_ids", None)
692
+ # only last token for inputs_ids if past is defined in kwargs
693
+ if past_key_values:
694
+ inputs = tf.expand_dims(inputs[:, -1], -1)
695
+ if token_type_ids is not None:
696
+ token_type_ids = tf.expand_dims(token_type_ids[:, -1], -1)
697
+
698
+ position_ids = kwargs.get("position_ids", None)
699
+ attention_mask = kwargs.get("attention_mask", None)
700
+
701
+ if attention_mask is not None and position_ids is None:
702
+ position_ids = tf.math.cumsum(attention_mask, axis=-1, exclusive=True)
703
+ if past_key_values:
704
+ position_ids = tf.expand_dims(position_ids[:, -1], -1)
705
+
706
+ return {
707
+ "input_ids": inputs,
708
+ "attention_mask": attention_mask,
709
+ "position_ids": position_ids,
710
+ "past_key_values": past_key_values,
711
+ "use_cache": use_cache,
712
+ "token_type_ids": token_type_ids,
713
+ }
714
+
715
+ @unpack_inputs
716
+ @add_start_docstrings_to_model_forward(CTRL_INPUTS_DOCSTRING)
717
+ @add_code_sample_docstrings(
718
+ checkpoint=_CHECKPOINT_FOR_DOC,
719
+ output_type=TFCausalLMOutputWithPast,
720
+ config_class=_CONFIG_FOR_DOC,
721
+ )
722
+ def call(
723
+ self,
724
+ input_ids: TFModelInputType | None = None,
725
+ past_key_values: Optional[Tuple[Tuple[Union[np.ndarray, tf.Tensor]]]] = None,
726
+ attention_mask: np.ndarray | tf.Tensor | None = None,
727
+ token_type_ids: np.ndarray | tf.Tensor | None = None,
728
+ position_ids: np.ndarray | tf.Tensor | None = None,
729
+ head_mask: np.ndarray | tf.Tensor | None = None,
730
+ inputs_embeds: np.ndarray | tf.Tensor | None = None,
731
+ use_cache: Optional[bool] = None,
732
+ output_attentions: Optional[bool] = None,
733
+ output_hidden_states: Optional[bool] = None,
734
+ return_dict: Optional[bool] = None,
735
+ labels: np.ndarray | tf.Tensor | None = None,
736
+ training: Optional[bool] = False,
737
+ ) -> Union[Tuple, TFCausalLMOutputWithPast]:
738
+ r"""
739
+ labels (`tf.Tensor` of shape `(batch_size, sequence_length)`, *optional*):
740
+ Labels for computing the cross entropy classification loss. Indices should be in `[0, ...,
741
+ config.vocab_size - 1]`.
742
+ """
743
+ transformer_outputs = self.transformer(
744
+ input_ids=input_ids,
745
+ past_key_values=past_key_values,
746
+ attention_mask=attention_mask,
747
+ token_type_ids=token_type_ids,
748
+ position_ids=position_ids,
749
+ head_mask=head_mask,
750
+ inputs_embeds=inputs_embeds,
751
+ use_cache=use_cache,
752
+ output_attentions=output_attentions,
753
+ output_hidden_states=output_hidden_states,
754
+ return_dict=return_dict,
755
+ training=training,
756
+ )
757
+ hidden_states = transformer_outputs[0]
758
+ logits = tf.matmul(hidden_states, self.transformer.w.weights, transpose_b=True)
759
+ logits = self.bias_layer(logits)
760
+
761
+ loss = None
762
+ if labels is not None:
763
+ # shift labels to the left and cut last logit token
764
+ shifted_logits = logits[:, :-1]
765
+ labels = labels[:, 1:]
766
+ loss = self.hf_compute_loss(labels, shifted_logits)
767
+
768
+ if not return_dict:
769
+ output = (logits,) + transformer_outputs[1:]
770
+ return ((loss,) + output) if loss is not None else output
771
+
772
+ return TFCausalLMOutputWithPast(
773
+ loss=loss,
774
+ logits=logits,
775
+ past_key_values=transformer_outputs.past_key_values,
776
+ hidden_states=transformer_outputs.hidden_states,
777
+ attentions=transformer_outputs.attentions,
778
+ )
779
+
780
+ def build(self, input_shape=None):
781
+ if self.built:
782
+ return
783
+ self.built = True
784
+ if getattr(self, "transformer", None) is not None:
785
+ with tf.name_scope(self.transformer.name):
786
+ self.transformer.build(None)
787
+ if getattr(self, "bias_layer", None) is not None:
788
+ with tf.name_scope(self.bias_layer.name):
789
+ self.bias_layer.build(None)
790
+
791
+
792
+ @add_start_docstrings(
793
+ """
794
+ The CTRL Model transformer with a sequence classification head on top (linear layer).
795
+
796
+ [`TFCTRLForSequenceClassification`] uses the last token in order to do the classification, as other causal models
797
+ (e.g. GPT-1, GPT-2) do.
798
+
799
+ Since it does classification on the last token, it requires to know the position of the last token. If a
800
+ `pad_token_id` is defined in the configuration, it finds the last token that is not a padding token in each row. If
801
+ no `pad_token_id` is defined, it simply takes the last value in each row of the batch. Since it cannot guess the
802
+ padding tokens when `inputs_embeds` are passed instead of `input_ids`, it does the same (take the last value in
803
+ each row of the batch).
804
+ """,
805
+ CTRL_START_DOCSTRING,
806
+ )
807
+ class TFCTRLForSequenceClassification(TFCTRLPreTrainedModel, TFSequenceClassificationLoss):
808
+ def __init__(self, config, *inputs, **kwargs):
809
+ super().__init__(config, *inputs, **kwargs)
810
+ self.num_labels = config.num_labels
811
+ self.classifier = keras.layers.Dense(
812
+ config.num_labels,
813
+ kernel_initializer=get_initializer(config.initializer_range),
814
+ name="classifier",
815
+ use_bias=False,
816
+ )
817
+ self.transformer = TFCTRLMainLayer(config, name="transformer")
818
+ self.config = config
819
+
820
+ def get_output_embeddings(self):
821
+ # Remove after transformers v4.32. Fix this model's `test_model_common_attributes` test too.
822
+ logger.warning(
823
+ "Sequence classification models do not have output embeddings. `.get_output_embeddings` will be removed "
824
+ "in transformers v4.32."
825
+ )
826
+ return self.transformer.w
827
+
828
+ @unpack_inputs
829
+ @add_start_docstrings_to_model_forward(CTRL_INPUTS_DOCSTRING)
830
+ @add_code_sample_docstrings(
831
+ checkpoint=_CHECKPOINT_FOR_DOC,
832
+ output_type=TFSequenceClassifierOutput,
833
+ config_class=_CONFIG_FOR_DOC,
834
+ )
835
+ def call(
836
+ self,
837
+ input_ids: TFModelInputType | None = None,
838
+ past_key_values: Optional[Tuple[Tuple[Union[np.ndarray, tf.Tensor]]]] = None,
839
+ attention_mask: np.ndarray | tf.Tensor | None = None,
840
+ token_type_ids: np.ndarray | tf.Tensor | None = None,
841
+ position_ids: np.ndarray | tf.Tensor | None = None,
842
+ head_mask: np.ndarray | tf.Tensor | None = None,
843
+ inputs_embeds: np.ndarray | tf.Tensor | None = None,
844
+ use_cache: Optional[bool] = None,
845
+ output_attentions: Optional[bool] = None,
846
+ output_hidden_states: Optional[bool] = None,
847
+ return_dict: Optional[bool] = None,
848
+ labels: np.ndarray | tf.Tensor | None = None,
849
+ training: Optional[bool] = False,
850
+ ) -> Union[Tuple, TFSequenceClassifierOutput]:
851
+ r"""
852
+ labels (`tf.Tensor` of shape `(batch_size, sequence_length)`, *optional*):
853
+ Labels for computing the cross entropy classification loss. Indices should be in `[0, ...,
854
+ config.vocab_size - 1]`.
855
+ """
856
+
857
+ transformer_outputs = self.transformer(
858
+ input_ids=input_ids,
859
+ past_key_values=past_key_values,
860
+ attention_mask=attention_mask,
861
+ token_type_ids=token_type_ids,
862
+ position_ids=position_ids,
863
+ head_mask=head_mask,
864
+ inputs_embeds=inputs_embeds,
865
+ use_cache=use_cache,
866
+ output_attentions=output_attentions,
867
+ output_hidden_states=output_hidden_states,
868
+ return_dict=return_dict,
869
+ training=training,
870
+ )
871
+ hidden_states = transformer_outputs[0]
872
+ logits = self.classifier(hidden_states)
873
+ logits_shape = shape_list(logits)
874
+ batch_size = logits_shape[0]
875
+
876
+ if self.config.pad_token_id is None:
877
+ last_non_pad_token = tf.fill((batch_size,), value=logits_shape[1] - 1)
878
+ else:
879
+ if input_ids is not None:
880
+ token_indices = tf.range(shape_list(input_ids)[-1])
881
+ non_pad_mask = tf.cast(input_ids != self.config.pad_token_id, token_indices.dtype)
882
+ last_non_pad_token = tf.reduce_max(token_indices * non_pad_mask, axis=-1)
883
+ else:
884
+ last_non_pad_token = tf.fill((batch_size,), value=logits_shape[1] - 1)
885
+ logger.warning_once(
886
+ f"{self.__class__.__name__} will not detect padding tokens in `inputs_embeds`. Results may be "
887
+ "unexpected if using padding tokens in conjunction with `inputs_embeds.`"
888
+ )
889
+ loss = None
890
+
891
+ pooled_logits = tf.gather(logits, last_non_pad_token, batch_dims=1, axis=1)
892
+
893
+ if labels is not None:
894
+ if self.config.pad_token_id is None and logits_shape[0] != 1:
895
+ raise ValueError("Cannot handle batch sizes > 1 if no padding token is defined.")
896
+
897
+ loss = self.hf_compute_loss(tf.reshape(labels, [-1]), tf.reshape(pooled_logits, [-1, self.num_labels]))
898
+
899
+ if not return_dict:
900
+ output = (pooled_logits,) + transformer_outputs[1:]
901
+ return ((loss,) + output) if loss is not None else output
902
+
903
+ return TFSequenceClassifierOutput(
904
+ loss=loss,
905
+ logits=pooled_logits,
906
+ hidden_states=transformer_outputs.hidden_states,
907
+ attentions=transformer_outputs.attentions,
908
+ )
909
+
910
+ def build(self, input_shape=None):
911
+ if self.built:
912
+ return
913
+ self.built = True
914
+ if getattr(self, "classifier", None) is not None:
915
+ with tf.name_scope(self.classifier.name):
916
+ self.classifier.build([None, None, self.config.n_embd])
917
+ if getattr(self, "transformer", None) is not None:
918
+ with tf.name_scope(self.transformer.name):
919
+ self.transformer.build(None)
920
+
921
+
922
+ __all__ = ["TFCTRLForSequenceClassification", "TFCTRLLMHeadModel", "TFCTRLModel", "TFCTRLPreTrainedModel"]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/ctrl/tokenization_ctrl.py ADDED
@@ -0,0 +1,251 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2018 Salesforce and The HuggingFace Inc. team.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """Tokenization classes for Salesforce CTRL."""
16
+
17
+ import json
18
+ import os
19
+ from typing import Optional, Tuple
20
+
21
+ import regex as re
22
+
23
+ from ...tokenization_utils import PreTrainedTokenizer
24
+ from ...utils import logging
25
+
26
+
27
+ logger = logging.get_logger(__name__)
28
+
29
+ VOCAB_FILES_NAMES = {
30
+ "vocab_file": "vocab.json",
31
+ "merges_file": "merges.txt",
32
+ }
33
+
34
+
35
+ CONTROL_CODES = {
36
+ "Pregnancy": 168629,
37
+ "Christianity": 7675,
38
+ "Explain": 106423,
39
+ "Fitness": 63440,
40
+ "Saving": 63163,
41
+ "Ask": 27171,
42
+ "Ass": 95985,
43
+ "Joke": 163509,
44
+ "Questions": 45622,
45
+ "Thoughts": 49605,
46
+ "Retail": 52342,
47
+ "Feminism": 164338,
48
+ "Writing": 11992,
49
+ "Atheism": 192263,
50
+ "Netflix": 48616,
51
+ "Computing": 39639,
52
+ "Opinion": 43213,
53
+ "Alone": 44967,
54
+ "Funny": 58917,
55
+ "Gaming": 40358,
56
+ "Human": 4088,
57
+ "India": 1331,
58
+ "Joker": 77138,
59
+ "Diet": 36206,
60
+ "Legal": 11859,
61
+ "Norman": 4939,
62
+ "Tip": 72689,
63
+ "Weight": 52343,
64
+ "Movies": 46273,
65
+ "Running": 23425,
66
+ "Science": 2090,
67
+ "Horror": 37793,
68
+ "Confession": 60572,
69
+ "Finance": 12250,
70
+ "Politics": 16360,
71
+ "Scary": 191985,
72
+ "Support": 12654,
73
+ "Technologies": 32516,
74
+ "Teenage": 66160,
75
+ "Event": 32769,
76
+ "Learned": 67460,
77
+ "Notion": 182770,
78
+ "Wikipedia": 37583,
79
+ "Books": 6665,
80
+ "Extract": 76050,
81
+ "Confessions": 102701,
82
+ "Conspiracy": 75932,
83
+ "Links": 63674,
84
+ "Narcissus": 150425,
85
+ "Relationship": 54766,
86
+ "Relationships": 134796,
87
+ "Reviews": 41671,
88
+ "News": 4256,
89
+ "Translation": 26820,
90
+ "multilingual": 128406,
91
+ }
92
+
93
+
94
+ def get_pairs(word):
95
+ """
96
+ Return set of symbol pairs in a word.
97
+
98
+ Word is represented as tuple of symbols (symbols being variable-length strings).
99
+ """
100
+ pairs = set()
101
+ prev_char = word[0]
102
+ for char in word[1:]:
103
+ pairs.add((prev_char, char))
104
+ prev_char = char
105
+
106
+ pairs = set(pairs)
107
+ return pairs
108
+
109
+
110
+ class CTRLTokenizer(PreTrainedTokenizer):
111
+ """
112
+ Construct a CTRL tokenizer. Based on Byte-Pair-Encoding.
113
+
114
+ This tokenizer inherits from [`PreTrainedTokenizer`] which contains most of the main methods. Users should refer to
115
+ this superclass for more information regarding those methods.
116
+
117
+ Args:
118
+ vocab_file (`str`):
119
+ Path to the vocabulary file.
120
+ merges_file (`str`):
121
+ Path to the merges file.
122
+ unk_token (`str`, *optional*, defaults to `"<unk>"`):
123
+ The unknown token. A token that is not in the vocabulary cannot be converted to an ID and is set to be this
124
+ token instead.
125
+ """
126
+
127
+ vocab_files_names = VOCAB_FILES_NAMES
128
+ control_codes = CONTROL_CODES
129
+
130
+ def __init__(self, vocab_file, merges_file, unk_token="<unk>", **kwargs):
131
+ with open(vocab_file, encoding="utf-8") as vocab_handle:
132
+ self.encoder = json.load(vocab_handle)
133
+ self.decoder = {v: k for k, v in self.encoder.items()}
134
+ with open(merges_file, encoding="utf-8") as merges_handle:
135
+ merges = merges_handle.read().split("\n")[1:-1]
136
+ merges = [tuple(merge.split()) for merge in merges]
137
+ self.bpe_ranks = dict(zip(merges, range(len(merges))))
138
+ self.cache = {}
139
+ super().__init__(unk_token=unk_token, **kwargs)
140
+
141
+ @property
142
+ def vocab_size(self):
143
+ return len(self.encoder)
144
+
145
+ def get_vocab(self):
146
+ return dict(self.encoder, **self.added_tokens_encoder)
147
+
148
+ def bpe(self, token):
149
+ if token in self.cache:
150
+ return self.cache[token]
151
+ word = tuple(token)
152
+ word = tuple(list(word[:-1]) + [word[-1] + "</w>"])
153
+ pairs = get_pairs(word)
154
+
155
+ if not pairs:
156
+ return token
157
+
158
+ while True:
159
+ bigram = min(pairs, key=lambda pair: self.bpe_ranks.get(pair, float("inf")))
160
+ if bigram not in self.bpe_ranks:
161
+ break
162
+ first, second = bigram
163
+ new_word = []
164
+ i = 0
165
+ while i < len(word):
166
+ try:
167
+ j = word.index(first, i)
168
+ except ValueError:
169
+ new_word.extend(word[i:])
170
+ break
171
+ else:
172
+ new_word.extend(word[i:j])
173
+ i = j
174
+
175
+ if word[i] == first and i < len(word) - 1 and word[i + 1] == second:
176
+ new_word.append(first + second)
177
+ i += 2
178
+ else:
179
+ new_word.append(word[i])
180
+ i += 1
181
+ new_word = tuple(new_word)
182
+ word = new_word
183
+ if len(word) == 1:
184
+ break
185
+ else:
186
+ pairs = get_pairs(word)
187
+ word = "@@ ".join(word)
188
+ word = word[:-4]
189
+ self.cache[token] = word
190
+ return word
191
+
192
+ def _tokenize(self, text):
193
+ """Tokenize a string."""
194
+ split_tokens = []
195
+
196
+ words = re.findall(r"\S+\n?", text)
197
+
198
+ for token in words:
199
+ split_tokens.extend(list(self.bpe(token).split(" ")))
200
+ return split_tokens
201
+
202
+ def _convert_token_to_id(self, token):
203
+ """Converts a token (str) in an id using the vocab."""
204
+ return self.encoder.get(token, self.encoder.get(self.unk_token))
205
+
206
+ def _convert_id_to_token(self, index):
207
+ """Converts an index (integer) in a token (str) using the vocab."""
208
+ return self.decoder.get(index, self.unk_token)
209
+
210
+ def convert_tokens_to_string(self, tokens):
211
+ """Converts a sequence of tokens (string) in a single string."""
212
+ out_string = " ".join(tokens).replace("@@ ", "").strip()
213
+ return out_string
214
+
215
+ def save_vocabulary(self, save_directory: str, filename_prefix: Optional[str] = None) -> Tuple[str]:
216
+ if not os.path.isdir(save_directory):
217
+ logger.error(f"Vocabulary path ({save_directory}) should be a directory")
218
+ return
219
+ vocab_file = os.path.join(
220
+ save_directory, (filename_prefix + "-" if filename_prefix else "") + VOCAB_FILES_NAMES["vocab_file"]
221
+ )
222
+ merge_file = os.path.join(
223
+ save_directory, (filename_prefix + "-" if filename_prefix else "") + VOCAB_FILES_NAMES["merges_file"]
224
+ )
225
+
226
+ with open(vocab_file, "w", encoding="utf-8") as f:
227
+ f.write(json.dumps(self.encoder, indent=2, sort_keys=True, ensure_ascii=False) + "\n")
228
+
229
+ index = 0
230
+ with open(merge_file, "w", encoding="utf-8") as writer:
231
+ writer.write("#version: 0.2\n")
232
+ for bpe_tokens, token_index in sorted(self.bpe_ranks.items(), key=lambda kv: kv[1]):
233
+ if index != token_index:
234
+ logger.warning(
235
+ f"Saving vocabulary to {merge_file}: BPE merge indices are not consecutive."
236
+ " Please check that the tokenizer is not corrupted!"
237
+ )
238
+ index = token_index
239
+ writer.write(" ".join(bpe_tokens) + "\n")
240
+ index += 1
241
+
242
+ return vocab_file, merge_file
243
+
244
+ # def decode(self, token_ids, skip_special_tokens=False, clean_up_tokenization_spaces=True):
245
+ # filtered_tokens = ' '.join(self.convert_ids_to_tokens(token_ids, skip_special_tokens=skip_special_tokens))
246
+ # tokens_generated_so_far = re.sub('(@@ )', '', string=filtered_tokens)
247
+ # tokens_generated_so_far = re.sub('(@@ ?$)', '', string=tokens_generated_so_far)
248
+ # return ''.join(tokens_generated_so_far)
249
+
250
+
251
+ __all__ = ["CTRLTokenizer"]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/cvt/__init__.py ADDED
@@ -0,0 +1,28 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # Copyright 2024 The HuggingFace Team. All rights reserved.
2
+ #
3
+ # Licensed under the Apache License, Version 2.0 (the "License");
4
+ # you may not use this file except in compliance with the License.
5
+ # You may obtain a copy of the License at
6
+ #
7
+ # http://www.apache.org/licenses/LICENSE-2.0
8
+ #
9
+ # Unless required by applicable law or agreed to in writing, software
10
+ # distributed under the License is distributed on an "AS IS" BASIS,
11
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12
+ # See the License for the specific language governing permissions and
13
+ # limitations under the License.
14
+ from typing import TYPE_CHECKING
15
+
16
+ from ...utils import _LazyModule
17
+ from ...utils.import_utils import define_import_structure
18
+
19
+
20
+ if TYPE_CHECKING:
21
+ from .configuration_cvt import *
22
+ from .modeling_cvt import *
23
+ from .modeling_tf_cvt import *
24
+ else:
25
+ import sys
26
+
27
+ _file = globals()["__file__"]
28
+ sys.modules[__name__] = _LazyModule(__name__, _file, define_import_structure(_file), module_spec=__spec__)
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/cvt/configuration_cvt.py ADDED
@@ -0,0 +1,146 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2022 The HuggingFace Inc. team. All rights reserved.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """CvT model configuration"""
16
+
17
+ from ...configuration_utils import PretrainedConfig
18
+ from ...utils import logging
19
+
20
+
21
+ logger = logging.get_logger(__name__)
22
+
23
+
24
+ class CvtConfig(PretrainedConfig):
25
+ r"""
26
+ This is the configuration class to store the configuration of a [`CvtModel`]. It is used to instantiate a CvT model
27
+ according to the specified arguments, defining the model architecture. Instantiating a configuration with the
28
+ defaults will yield a similar configuration to that of the CvT
29
+ [microsoft/cvt-13](https://huggingface.co/microsoft/cvt-13) architecture.
30
+
31
+ Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
32
+ documentation from [`PretrainedConfig`] for more information.
33
+
34
+ Args:
35
+ num_channels (`int`, *optional*, defaults to 3):
36
+ The number of input channels.
37
+ patch_sizes (`List[int]`, *optional*, defaults to `[7, 3, 3]`):
38
+ The kernel size of each encoder's patch embedding.
39
+ patch_stride (`List[int]`, *optional*, defaults to `[4, 2, 2]`):
40
+ The stride size of each encoder's patch embedding.
41
+ patch_padding (`List[int]`, *optional*, defaults to `[2, 1, 1]`):
42
+ The padding size of each encoder's patch embedding.
43
+ embed_dim (`List[int]`, *optional*, defaults to `[64, 192, 384]`):
44
+ Dimension of each of the encoder blocks.
45
+ num_heads (`List[int]`, *optional*, defaults to `[1, 3, 6]`):
46
+ Number of attention heads for each attention layer in each block of the Transformer encoder.
47
+ depth (`List[int]`, *optional*, defaults to `[1, 2, 10]`):
48
+ The number of layers in each encoder block.
49
+ mlp_ratios (`List[float]`, *optional*, defaults to `[4.0, 4.0, 4.0, 4.0]`):
50
+ Ratio of the size of the hidden layer compared to the size of the input layer of the Mix FFNs in the
51
+ encoder blocks.
52
+ attention_drop_rate (`List[float]`, *optional*, defaults to `[0.0, 0.0, 0.0]`):
53
+ The dropout ratio for the attention probabilities.
54
+ drop_rate (`List[float]`, *optional*, defaults to `[0.0, 0.0, 0.0]`):
55
+ The dropout ratio for the patch embeddings probabilities.
56
+ drop_path_rate (`List[float]`, *optional*, defaults to `[0.0, 0.0, 0.1]`):
57
+ The dropout probability for stochastic depth, used in the blocks of the Transformer encoder.
58
+ qkv_bias (`List[bool]`, *optional*, defaults to `[True, True, True]`):
59
+ The bias bool for query, key and value in attentions
60
+ cls_token (`List[bool]`, *optional*, defaults to `[False, False, True]`):
61
+ Whether or not to add a classification token to the output of each of the last 3 stages.
62
+ qkv_projection_method (`List[string]`, *optional*, defaults to ["dw_bn", "dw_bn", "dw_bn"]`):
63
+ The projection method for query, key and value Default is depth-wise convolutions with batch norm. For
64
+ Linear projection use "avg".
65
+ kernel_qkv (`List[int]`, *optional*, defaults to `[3, 3, 3]`):
66
+ The kernel size for query, key and value in attention layer
67
+ padding_kv (`List[int]`, *optional*, defaults to `[1, 1, 1]`):
68
+ The padding size for key and value in attention layer
69
+ stride_kv (`List[int]`, *optional*, defaults to `[2, 2, 2]`):
70
+ The stride size for key and value in attention layer
71
+ padding_q (`List[int]`, *optional*, defaults to `[1, 1, 1]`):
72
+ The padding size for query in attention layer
73
+ stride_q (`List[int]`, *optional*, defaults to `[1, 1, 1]`):
74
+ The stride size for query in attention layer
75
+ initializer_range (`float`, *optional*, defaults to 0.02):
76
+ The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
77
+ layer_norm_eps (`float`, *optional*, defaults to 1e-6):
78
+ The epsilon used by the layer normalization layers.
79
+
80
+ Example:
81
+
82
+ ```python
83
+ >>> from transformers import CvtConfig, CvtModel
84
+
85
+ >>> # Initializing a Cvt msft/cvt style configuration
86
+ >>> configuration = CvtConfig()
87
+
88
+ >>> # Initializing a model (with random weights) from the msft/cvt style configuration
89
+ >>> model = CvtModel(configuration)
90
+
91
+ >>> # Accessing the model configuration
92
+ >>> configuration = model.config
93
+ ```"""
94
+
95
+ model_type = "cvt"
96
+
97
+ def __init__(
98
+ self,
99
+ num_channels=3,
100
+ patch_sizes=[7, 3, 3],
101
+ patch_stride=[4, 2, 2],
102
+ patch_padding=[2, 1, 1],
103
+ embed_dim=[64, 192, 384],
104
+ num_heads=[1, 3, 6],
105
+ depth=[1, 2, 10],
106
+ mlp_ratio=[4.0, 4.0, 4.0],
107
+ attention_drop_rate=[0.0, 0.0, 0.0],
108
+ drop_rate=[0.0, 0.0, 0.0],
109
+ drop_path_rate=[0.0, 0.0, 0.1],
110
+ qkv_bias=[True, True, True],
111
+ cls_token=[False, False, True],
112
+ qkv_projection_method=["dw_bn", "dw_bn", "dw_bn"],
113
+ kernel_qkv=[3, 3, 3],
114
+ padding_kv=[1, 1, 1],
115
+ stride_kv=[2, 2, 2],
116
+ padding_q=[1, 1, 1],
117
+ stride_q=[1, 1, 1],
118
+ initializer_range=0.02,
119
+ layer_norm_eps=1e-12,
120
+ **kwargs,
121
+ ):
122
+ super().__init__(**kwargs)
123
+ self.num_channels = num_channels
124
+ self.patch_sizes = patch_sizes
125
+ self.patch_stride = patch_stride
126
+ self.patch_padding = patch_padding
127
+ self.embed_dim = embed_dim
128
+ self.num_heads = num_heads
129
+ self.depth = depth
130
+ self.mlp_ratio = mlp_ratio
131
+ self.attention_drop_rate = attention_drop_rate
132
+ self.drop_rate = drop_rate
133
+ self.drop_path_rate = drop_path_rate
134
+ self.qkv_bias = qkv_bias
135
+ self.cls_token = cls_token
136
+ self.qkv_projection_method = qkv_projection_method
137
+ self.kernel_qkv = kernel_qkv
138
+ self.padding_kv = padding_kv
139
+ self.stride_kv = stride_kv
140
+ self.padding_q = padding_q
141
+ self.stride_q = stride_q
142
+ self.initializer_range = initializer_range
143
+ self.layer_norm_eps = layer_norm_eps
144
+
145
+
146
+ __all__ = ["CvtConfig"]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/cvt/convert_cvt_original_pytorch_checkpoint_to_pytorch.py ADDED
@@ -0,0 +1,362 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2022 The HuggingFace Inc. team.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """Convert CvT checkpoints from the original repository.
16
+
17
+ URL: https://github.com/microsoft/CvT"""
18
+
19
+ import argparse
20
+ import json
21
+ from collections import OrderedDict
22
+ from pathlib import Path
23
+
24
+ import torch
25
+ from huggingface_hub import hf_hub_download
26
+
27
+ from transformers import AutoImageProcessor, CvtConfig, CvtForImageClassification
28
+
29
+
30
+ def embeddings(idx):
31
+ """
32
+ The function helps in renaming embedding layer weights.
33
+
34
+ Args:
35
+ idx: stage number in original model
36
+ """
37
+ embed = []
38
+ embed.append(
39
+ (
40
+ f"cvt.encoder.stages.{idx}.embedding.convolution_embeddings.projection.weight",
41
+ f"stage{idx}.patch_embed.proj.weight",
42
+ )
43
+ )
44
+ embed.append(
45
+ (
46
+ f"cvt.encoder.stages.{idx}.embedding.convolution_embeddings.projection.bias",
47
+ f"stage{idx}.patch_embed.proj.bias",
48
+ )
49
+ )
50
+ embed.append(
51
+ (
52
+ f"cvt.encoder.stages.{idx}.embedding.convolution_embeddings.normalization.weight",
53
+ f"stage{idx}.patch_embed.norm.weight",
54
+ )
55
+ )
56
+ embed.append(
57
+ (
58
+ f"cvt.encoder.stages.{idx}.embedding.convolution_embeddings.normalization.bias",
59
+ f"stage{idx}.patch_embed.norm.bias",
60
+ )
61
+ )
62
+ return embed
63
+
64
+
65
+ def attention(idx, cnt):
66
+ """
67
+ The function helps in renaming attention block layers weights.
68
+
69
+ Args:
70
+ idx: stage number in original model
71
+ cnt: count of blocks in each stage
72
+ """
73
+ attention_weights = []
74
+ attention_weights.append(
75
+ (
76
+ f"cvt.encoder.stages.{idx}.layers.{cnt}.attention.attention.convolution_projection_query.convolution_projection.convolution.weight",
77
+ f"stage{idx}.blocks.{cnt}.attn.conv_proj_q.conv.weight",
78
+ )
79
+ )
80
+ attention_weights.append(
81
+ (
82
+ f"cvt.encoder.stages.{idx}.layers.{cnt}.attention.attention.convolution_projection_query.convolution_projection.normalization.weight",
83
+ f"stage{idx}.blocks.{cnt}.attn.conv_proj_q.bn.weight",
84
+ )
85
+ )
86
+ attention_weights.append(
87
+ (
88
+ f"cvt.encoder.stages.{idx}.layers.{cnt}.attention.attention.convolution_projection_query.convolution_projection.normalization.bias",
89
+ f"stage{idx}.blocks.{cnt}.attn.conv_proj_q.bn.bias",
90
+ )
91
+ )
92
+ attention_weights.append(
93
+ (
94
+ f"cvt.encoder.stages.{idx}.layers.{cnt}.attention.attention.convolution_projection_query.convolution_projection.normalization.running_mean",
95
+ f"stage{idx}.blocks.{cnt}.attn.conv_proj_q.bn.running_mean",
96
+ )
97
+ )
98
+ attention_weights.append(
99
+ (
100
+ f"cvt.encoder.stages.{idx}.layers.{cnt}.attention.attention.convolution_projection_query.convolution_projection.normalization.running_var",
101
+ f"stage{idx}.blocks.{cnt}.attn.conv_proj_q.bn.running_var",
102
+ )
103
+ )
104
+ attention_weights.append(
105
+ (
106
+ f"cvt.encoder.stages.{idx}.layers.{cnt}.attention.attention.convolution_projection_query.convolution_projection.normalization.num_batches_tracked",
107
+ f"stage{idx}.blocks.{cnt}.attn.conv_proj_q.bn.num_batches_tracked",
108
+ )
109
+ )
110
+ attention_weights.append(
111
+ (
112
+ f"cvt.encoder.stages.{idx}.layers.{cnt}.attention.attention.convolution_projection_key.convolution_projection.convolution.weight",
113
+ f"stage{idx}.blocks.{cnt}.attn.conv_proj_k.conv.weight",
114
+ )
115
+ )
116
+ attention_weights.append(
117
+ (
118
+ f"cvt.encoder.stages.{idx}.layers.{cnt}.attention.attention.convolution_projection_key.convolution_projection.normalization.weight",
119
+ f"stage{idx}.blocks.{cnt}.attn.conv_proj_k.bn.weight",
120
+ )
121
+ )
122
+ attention_weights.append(
123
+ (
124
+ f"cvt.encoder.stages.{idx}.layers.{cnt}.attention.attention.convolution_projection_key.convolution_projection.normalization.bias",
125
+ f"stage{idx}.blocks.{cnt}.attn.conv_proj_k.bn.bias",
126
+ )
127
+ )
128
+ attention_weights.append(
129
+ (
130
+ f"cvt.encoder.stages.{idx}.layers.{cnt}.attention.attention.convolution_projection_key.convolution_projection.normalization.running_mean",
131
+ f"stage{idx}.blocks.{cnt}.attn.conv_proj_k.bn.running_mean",
132
+ )
133
+ )
134
+ attention_weights.append(
135
+ (
136
+ f"cvt.encoder.stages.{idx}.layers.{cnt}.attention.attention.convolution_projection_key.convolution_projection.normalization.running_var",
137
+ f"stage{idx}.blocks.{cnt}.attn.conv_proj_k.bn.running_var",
138
+ )
139
+ )
140
+ attention_weights.append(
141
+ (
142
+ f"cvt.encoder.stages.{idx}.layers.{cnt}.attention.attention.convolution_projection_key.convolution_projection.normalization.num_batches_tracked",
143
+ f"stage{idx}.blocks.{cnt}.attn.conv_proj_k.bn.num_batches_tracked",
144
+ )
145
+ )
146
+ attention_weights.append(
147
+ (
148
+ f"cvt.encoder.stages.{idx}.layers.{cnt}.attention.attention.convolution_projection_value.convolution_projection.convolution.weight",
149
+ f"stage{idx}.blocks.{cnt}.attn.conv_proj_v.conv.weight",
150
+ )
151
+ )
152
+ attention_weights.append(
153
+ (
154
+ f"cvt.encoder.stages.{idx}.layers.{cnt}.attention.attention.convolution_projection_value.convolution_projection.normalization.weight",
155
+ f"stage{idx}.blocks.{cnt}.attn.conv_proj_v.bn.weight",
156
+ )
157
+ )
158
+ attention_weights.append(
159
+ (
160
+ f"cvt.encoder.stages.{idx}.layers.{cnt}.attention.attention.convolution_projection_value.convolution_projection.normalization.bias",
161
+ f"stage{idx}.blocks.{cnt}.attn.conv_proj_v.bn.bias",
162
+ )
163
+ )
164
+ attention_weights.append(
165
+ (
166
+ f"cvt.encoder.stages.{idx}.layers.{cnt}.attention.attention.convolution_projection_value.convolution_projection.normalization.running_mean",
167
+ f"stage{idx}.blocks.{cnt}.attn.conv_proj_v.bn.running_mean",
168
+ )
169
+ )
170
+ attention_weights.append(
171
+ (
172
+ f"cvt.encoder.stages.{idx}.layers.{cnt}.attention.attention.convolution_projection_value.convolution_projection.normalization.running_var",
173
+ f"stage{idx}.blocks.{cnt}.attn.conv_proj_v.bn.running_var",
174
+ )
175
+ )
176
+ attention_weights.append(
177
+ (
178
+ f"cvt.encoder.stages.{idx}.layers.{cnt}.attention.attention.convolution_projection_value.convolution_projection.normalization.num_batches_tracked",
179
+ f"stage{idx}.blocks.{cnt}.attn.conv_proj_v.bn.num_batches_tracked",
180
+ )
181
+ )
182
+ attention_weights.append(
183
+ (
184
+ f"cvt.encoder.stages.{idx}.layers.{cnt}.attention.attention.projection_query.weight",
185
+ f"stage{idx}.blocks.{cnt}.attn.proj_q.weight",
186
+ )
187
+ )
188
+ attention_weights.append(
189
+ (
190
+ f"cvt.encoder.stages.{idx}.layers.{cnt}.attention.attention.projection_query.bias",
191
+ f"stage{idx}.blocks.{cnt}.attn.proj_q.bias",
192
+ )
193
+ )
194
+ attention_weights.append(
195
+ (
196
+ f"cvt.encoder.stages.{idx}.layers.{cnt}.attention.attention.projection_key.weight",
197
+ f"stage{idx}.blocks.{cnt}.attn.proj_k.weight",
198
+ )
199
+ )
200
+ attention_weights.append(
201
+ (
202
+ f"cvt.encoder.stages.{idx}.layers.{cnt}.attention.attention.projection_key.bias",
203
+ f"stage{idx}.blocks.{cnt}.attn.proj_k.bias",
204
+ )
205
+ )
206
+ attention_weights.append(
207
+ (
208
+ f"cvt.encoder.stages.{idx}.layers.{cnt}.attention.attention.projection_value.weight",
209
+ f"stage{idx}.blocks.{cnt}.attn.proj_v.weight",
210
+ )
211
+ )
212
+ attention_weights.append(
213
+ (
214
+ f"cvt.encoder.stages.{idx}.layers.{cnt}.attention.attention.projection_value.bias",
215
+ f"stage{idx}.blocks.{cnt}.attn.proj_v.bias",
216
+ )
217
+ )
218
+ attention_weights.append(
219
+ (
220
+ f"cvt.encoder.stages.{idx}.layers.{cnt}.attention.output.dense.weight",
221
+ f"stage{idx}.blocks.{cnt}.attn.proj.weight",
222
+ )
223
+ )
224
+ attention_weights.append(
225
+ (
226
+ f"cvt.encoder.stages.{idx}.layers.{cnt}.attention.output.dense.bias",
227
+ f"stage{idx}.blocks.{cnt}.attn.proj.bias",
228
+ )
229
+ )
230
+ attention_weights.append(
231
+ (f"cvt.encoder.stages.{idx}.layers.{cnt}.intermediate.dense.weight", f"stage{idx}.blocks.{cnt}.mlp.fc1.weight")
232
+ )
233
+ attention_weights.append(
234
+ (f"cvt.encoder.stages.{idx}.layers.{cnt}.intermediate.dense.bias", f"stage{idx}.blocks.{cnt}.mlp.fc1.bias")
235
+ )
236
+ attention_weights.append(
237
+ (f"cvt.encoder.stages.{idx}.layers.{cnt}.output.dense.weight", f"stage{idx}.blocks.{cnt}.mlp.fc2.weight")
238
+ )
239
+ attention_weights.append(
240
+ (f"cvt.encoder.stages.{idx}.layers.{cnt}.output.dense.bias", f"stage{idx}.blocks.{cnt}.mlp.fc2.bias")
241
+ )
242
+ attention_weights.append(
243
+ (f"cvt.encoder.stages.{idx}.layers.{cnt}.layernorm_before.weight", f"stage{idx}.blocks.{cnt}.norm1.weight")
244
+ )
245
+ attention_weights.append(
246
+ (f"cvt.encoder.stages.{idx}.layers.{cnt}.layernorm_before.bias", f"stage{idx}.blocks.{cnt}.norm1.bias")
247
+ )
248
+ attention_weights.append(
249
+ (f"cvt.encoder.stages.{idx}.layers.{cnt}.layernorm_after.weight", f"stage{idx}.blocks.{cnt}.norm2.weight")
250
+ )
251
+ attention_weights.append(
252
+ (f"cvt.encoder.stages.{idx}.layers.{cnt}.layernorm_after.bias", f"stage{idx}.blocks.{cnt}.norm2.bias")
253
+ )
254
+ return attention_weights
255
+
256
+
257
+ def cls_token(idx):
258
+ """
259
+ Function helps in renaming cls_token weights
260
+ """
261
+ token = []
262
+ token.append((f"cvt.encoder.stages.{idx}.cls_token", "stage2.cls_token"))
263
+ return token
264
+
265
+
266
+ def final():
267
+ """
268
+ Function helps in renaming final classification layer
269
+ """
270
+ head = []
271
+ head.append(("layernorm.weight", "norm.weight"))
272
+ head.append(("layernorm.bias", "norm.bias"))
273
+ head.append(("classifier.weight", "head.weight"))
274
+ head.append(("classifier.bias", "head.bias"))
275
+ return head
276
+
277
+
278
+ def convert_cvt_checkpoint(cvt_model, image_size, cvt_file_name, pytorch_dump_folder):
279
+ """
280
+ Fucntion to convert the microsoft cvt checkpoint to huggingface checkpoint
281
+ """
282
+ img_labels_file = "imagenet-1k-id2label.json"
283
+ num_labels = 1000
284
+
285
+ repo_id = "huggingface/label-files"
286
+ num_labels = num_labels
287
+ id2label = json.loads(Path(hf_hub_download(repo_id, img_labels_file, repo_type="dataset")).read_text())
288
+ id2label = {int(k): v for k, v in id2label.items()}
289
+
290
+ id2label = id2label
291
+ label2id = {v: k for k, v in id2label.items()}
292
+
293
+ config = config = CvtConfig(num_labels=num_labels, id2label=id2label, label2id=label2id)
294
+
295
+ # For depth size 13 (13 = 1+2+10)
296
+ if cvt_model.rsplit("/", 1)[-1][4:6] == "13":
297
+ config.depth = [1, 2, 10]
298
+
299
+ # For depth size 21 (21 = 1+4+16)
300
+ elif cvt_model.rsplit("/", 1)[-1][4:6] == "21":
301
+ config.depth = [1, 4, 16]
302
+
303
+ # For wide cvt (similar to wide-resnet) depth size 24 (w24 = 2 + 2 20)
304
+ else:
305
+ config.depth = [2, 2, 20]
306
+ config.num_heads = [3, 12, 16]
307
+ config.embed_dim = [192, 768, 1024]
308
+
309
+ model = CvtForImageClassification(config)
310
+ image_processor = AutoImageProcessor.from_pretrained("facebook/convnext-base-224-22k-1k")
311
+ image_processor.size["shortest_edge"] = image_size
312
+ original_weights = torch.load(cvt_file_name, map_location=torch.device("cpu"))
313
+
314
+ huggingface_weights = OrderedDict()
315
+ list_of_state_dict = []
316
+
317
+ for idx in range(len(config.depth)):
318
+ if config.cls_token[idx]:
319
+ list_of_state_dict = list_of_state_dict + cls_token(idx)
320
+ list_of_state_dict = list_of_state_dict + embeddings(idx)
321
+ for cnt in range(config.depth[idx]):
322
+ list_of_state_dict = list_of_state_dict + attention(idx, cnt)
323
+
324
+ list_of_state_dict = list_of_state_dict + final()
325
+ for gg in list_of_state_dict:
326
+ print(gg)
327
+ for i in range(len(list_of_state_dict)):
328
+ huggingface_weights[list_of_state_dict[i][0]] = original_weights[list_of_state_dict[i][1]]
329
+
330
+ model.load_state_dict(huggingface_weights)
331
+ model.save_pretrained(pytorch_dump_folder)
332
+ image_processor.save_pretrained(pytorch_dump_folder)
333
+
334
+
335
+ # Download the weights from zoo: https://1drv.ms/u/s!AhIXJn_J-blW9RzF3rMW7SsLHa8h?e=blQ0Al
336
+
337
+ if __name__ == "__main__":
338
+ parser = argparse.ArgumentParser()
339
+ parser.add_argument(
340
+ "--cvt_model",
341
+ default="cvt-w24",
342
+ type=str,
343
+ help="Name of the cvt model you'd like to convert.",
344
+ )
345
+ parser.add_argument(
346
+ "--image_size",
347
+ default=384,
348
+ type=int,
349
+ help="Input Image Size",
350
+ )
351
+ parser.add_argument(
352
+ "--cvt_file_name",
353
+ default=r"cvtmodels\CvT-w24-384x384-IN-22k.pth",
354
+ type=str,
355
+ help="Input Image Size",
356
+ )
357
+ parser.add_argument(
358
+ "--pytorch_dump_folder_path", default=None, type=str, help="Path to the output PyTorch model directory."
359
+ )
360
+
361
+ args = parser.parse_args()
362
+ convert_cvt_checkpoint(args.cvt_model, args.image_size, args.cvt_file_name, args.pytorch_dump_folder_path)
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/cvt/modeling_cvt.py ADDED
@@ -0,0 +1,725 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2022 Microsoft Research and The HuggingFace Inc. team. All rights reserved.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """PyTorch CvT model."""
16
+
17
+ import collections.abc
18
+ from dataclasses import dataclass
19
+ from typing import Optional, Tuple, Union
20
+
21
+ import torch
22
+ import torch.utils.checkpoint
23
+ from torch import nn
24
+ from torch.nn import BCEWithLogitsLoss, CrossEntropyLoss, MSELoss
25
+
26
+ from ...file_utils import add_code_sample_docstrings, add_start_docstrings, add_start_docstrings_to_model_forward
27
+ from ...modeling_outputs import ImageClassifierOutputWithNoAttention, ModelOutput
28
+ from ...modeling_utils import PreTrainedModel, find_pruneable_heads_and_indices, prune_linear_layer
29
+ from ...utils import logging
30
+ from .configuration_cvt import CvtConfig
31
+
32
+
33
+ logger = logging.get_logger(__name__)
34
+
35
+ # General docstring
36
+ _CONFIG_FOR_DOC = "CvtConfig"
37
+
38
+ # Base docstring
39
+ _CHECKPOINT_FOR_DOC = "microsoft/cvt-13"
40
+ _EXPECTED_OUTPUT_SHAPE = [1, 384, 14, 14]
41
+
42
+ # Image classification docstring
43
+ _IMAGE_CLASS_CHECKPOINT = "microsoft/cvt-13"
44
+ _IMAGE_CLASS_EXPECTED_OUTPUT = "tabby, tabby cat"
45
+
46
+
47
+ @dataclass
48
+ class BaseModelOutputWithCLSToken(ModelOutput):
49
+ """
50
+ Base class for model's outputs, with potential hidden states and attentions.
51
+
52
+ Args:
53
+ last_hidden_state (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`):
54
+ Sequence of hidden-states at the output of the last layer of the model.
55
+ cls_token_value (`torch.FloatTensor` of shape `(batch_size, 1, hidden_size)`):
56
+ Classification token at the output of the last layer of the model.
57
+ hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
58
+ Tuple of `torch.FloatTensor` (one for the output of the embeddings + one for the output of each layer) of
59
+ shape `(batch_size, sequence_length, hidden_size)`. Hidden-states of the model at the output of each layer
60
+ plus the initial embedding outputs.
61
+ """
62
+
63
+ last_hidden_state: torch.FloatTensor = None
64
+ cls_token_value: torch.FloatTensor = None
65
+ hidden_states: Optional[Tuple[torch.FloatTensor, ...]] = None
66
+
67
+
68
+ # Copied from transformers.models.beit.modeling_beit.drop_path
69
+ def drop_path(input: torch.Tensor, drop_prob: float = 0.0, training: bool = False) -> torch.Tensor:
70
+ """
71
+ Drop paths (Stochastic Depth) per sample (when applied in main path of residual blocks).
72
+
73
+ Comment by Ross Wightman: This is the same as the DropConnect impl I created for EfficientNet, etc networks,
74
+ however, the original name is misleading as 'Drop Connect' is a different form of dropout in a separate paper...
75
+ See discussion: https://github.com/tensorflow/tpu/issues/494#issuecomment-532968956 ... I've opted for changing the
76
+ layer and argument names to 'drop path' rather than mix DropConnect as a layer name and use 'survival rate' as the
77
+ argument.
78
+ """
79
+ if drop_prob == 0.0 or not training:
80
+ return input
81
+ keep_prob = 1 - drop_prob
82
+ shape = (input.shape[0],) + (1,) * (input.ndim - 1) # work with diff dim tensors, not just 2D ConvNets
83
+ random_tensor = keep_prob + torch.rand(shape, dtype=input.dtype, device=input.device)
84
+ random_tensor.floor_() # binarize
85
+ output = input.div(keep_prob) * random_tensor
86
+ return output
87
+
88
+
89
+ # Copied from transformers.models.beit.modeling_beit.BeitDropPath
90
+ class CvtDropPath(nn.Module):
91
+ """Drop paths (Stochastic Depth) per sample (when applied in main path of residual blocks)."""
92
+
93
+ def __init__(self, drop_prob: Optional[float] = None) -> None:
94
+ super().__init__()
95
+ self.drop_prob = drop_prob
96
+
97
+ def forward(self, hidden_states: torch.Tensor) -> torch.Tensor:
98
+ return drop_path(hidden_states, self.drop_prob, self.training)
99
+
100
+ def extra_repr(self) -> str:
101
+ return "p={}".format(self.drop_prob)
102
+
103
+
104
+ class CvtEmbeddings(nn.Module):
105
+ """
106
+ Construct the CvT embeddings.
107
+ """
108
+
109
+ def __init__(self, patch_size, num_channels, embed_dim, stride, padding, dropout_rate):
110
+ super().__init__()
111
+ self.convolution_embeddings = CvtConvEmbeddings(
112
+ patch_size=patch_size, num_channels=num_channels, embed_dim=embed_dim, stride=stride, padding=padding
113
+ )
114
+ self.dropout = nn.Dropout(dropout_rate)
115
+
116
+ def forward(self, pixel_values):
117
+ hidden_state = self.convolution_embeddings(pixel_values)
118
+ hidden_state = self.dropout(hidden_state)
119
+ return hidden_state
120
+
121
+
122
+ class CvtConvEmbeddings(nn.Module):
123
+ """
124
+ Image to Conv Embedding.
125
+ """
126
+
127
+ def __init__(self, patch_size, num_channels, embed_dim, stride, padding):
128
+ super().__init__()
129
+ patch_size = patch_size if isinstance(patch_size, collections.abc.Iterable) else (patch_size, patch_size)
130
+ self.patch_size = patch_size
131
+ self.projection = nn.Conv2d(num_channels, embed_dim, kernel_size=patch_size, stride=stride, padding=padding)
132
+ self.normalization = nn.LayerNorm(embed_dim)
133
+
134
+ def forward(self, pixel_values):
135
+ pixel_values = self.projection(pixel_values)
136
+ batch_size, num_channels, height, width = pixel_values.shape
137
+ hidden_size = height * width
138
+ # rearrange "b c h w -> b (h w) c"
139
+ pixel_values = pixel_values.view(batch_size, num_channels, hidden_size).permute(0, 2, 1)
140
+ if self.normalization:
141
+ pixel_values = self.normalization(pixel_values)
142
+ # rearrange "b (h w) c" -> b c h w"
143
+ pixel_values = pixel_values.permute(0, 2, 1).view(batch_size, num_channels, height, width)
144
+ return pixel_values
145
+
146
+
147
+ class CvtSelfAttentionConvProjection(nn.Module):
148
+ def __init__(self, embed_dim, kernel_size, padding, stride):
149
+ super().__init__()
150
+ self.convolution = nn.Conv2d(
151
+ embed_dim,
152
+ embed_dim,
153
+ kernel_size=kernel_size,
154
+ padding=padding,
155
+ stride=stride,
156
+ bias=False,
157
+ groups=embed_dim,
158
+ )
159
+ self.normalization = nn.BatchNorm2d(embed_dim)
160
+
161
+ def forward(self, hidden_state):
162
+ hidden_state = self.convolution(hidden_state)
163
+ hidden_state = self.normalization(hidden_state)
164
+ return hidden_state
165
+
166
+
167
+ class CvtSelfAttentionLinearProjection(nn.Module):
168
+ def forward(self, hidden_state):
169
+ batch_size, num_channels, height, width = hidden_state.shape
170
+ hidden_size = height * width
171
+ # rearrange " b c h w -> b (h w) c"
172
+ hidden_state = hidden_state.view(batch_size, num_channels, hidden_size).permute(0, 2, 1)
173
+ return hidden_state
174
+
175
+
176
+ class CvtSelfAttentionProjection(nn.Module):
177
+ def __init__(self, embed_dim, kernel_size, padding, stride, projection_method="dw_bn"):
178
+ super().__init__()
179
+ if projection_method == "dw_bn":
180
+ self.convolution_projection = CvtSelfAttentionConvProjection(embed_dim, kernel_size, padding, stride)
181
+ self.linear_projection = CvtSelfAttentionLinearProjection()
182
+
183
+ def forward(self, hidden_state):
184
+ hidden_state = self.convolution_projection(hidden_state)
185
+ hidden_state = self.linear_projection(hidden_state)
186
+ return hidden_state
187
+
188
+
189
+ class CvtSelfAttention(nn.Module):
190
+ def __init__(
191
+ self,
192
+ num_heads,
193
+ embed_dim,
194
+ kernel_size,
195
+ padding_q,
196
+ padding_kv,
197
+ stride_q,
198
+ stride_kv,
199
+ qkv_projection_method,
200
+ qkv_bias,
201
+ attention_drop_rate,
202
+ with_cls_token=True,
203
+ **kwargs,
204
+ ):
205
+ super().__init__()
206
+ self.scale = embed_dim**-0.5
207
+ self.with_cls_token = with_cls_token
208
+ self.embed_dim = embed_dim
209
+ self.num_heads = num_heads
210
+
211
+ self.convolution_projection_query = CvtSelfAttentionProjection(
212
+ embed_dim,
213
+ kernel_size,
214
+ padding_q,
215
+ stride_q,
216
+ projection_method="linear" if qkv_projection_method == "avg" else qkv_projection_method,
217
+ )
218
+ self.convolution_projection_key = CvtSelfAttentionProjection(
219
+ embed_dim, kernel_size, padding_kv, stride_kv, projection_method=qkv_projection_method
220
+ )
221
+ self.convolution_projection_value = CvtSelfAttentionProjection(
222
+ embed_dim, kernel_size, padding_kv, stride_kv, projection_method=qkv_projection_method
223
+ )
224
+
225
+ self.projection_query = nn.Linear(embed_dim, embed_dim, bias=qkv_bias)
226
+ self.projection_key = nn.Linear(embed_dim, embed_dim, bias=qkv_bias)
227
+ self.projection_value = nn.Linear(embed_dim, embed_dim, bias=qkv_bias)
228
+
229
+ self.dropout = nn.Dropout(attention_drop_rate)
230
+
231
+ def rearrange_for_multi_head_attention(self, hidden_state):
232
+ batch_size, hidden_size, _ = hidden_state.shape
233
+ head_dim = self.embed_dim // self.num_heads
234
+ # rearrange 'b t (h d) -> b h t d'
235
+ return hidden_state.view(batch_size, hidden_size, self.num_heads, head_dim).permute(0, 2, 1, 3)
236
+
237
+ def forward(self, hidden_state, height, width):
238
+ if self.with_cls_token:
239
+ cls_token, hidden_state = torch.split(hidden_state, [1, height * width], 1)
240
+ batch_size, hidden_size, num_channels = hidden_state.shape
241
+ # rearrange "b (h w) c -> b c h w"
242
+ hidden_state = hidden_state.permute(0, 2, 1).view(batch_size, num_channels, height, width)
243
+
244
+ key = self.convolution_projection_key(hidden_state)
245
+ query = self.convolution_projection_query(hidden_state)
246
+ value = self.convolution_projection_value(hidden_state)
247
+
248
+ if self.with_cls_token:
249
+ query = torch.cat((cls_token, query), dim=1)
250
+ key = torch.cat((cls_token, key), dim=1)
251
+ value = torch.cat((cls_token, value), dim=1)
252
+
253
+ head_dim = self.embed_dim // self.num_heads
254
+
255
+ query = self.rearrange_for_multi_head_attention(self.projection_query(query))
256
+ key = self.rearrange_for_multi_head_attention(self.projection_key(key))
257
+ value = self.rearrange_for_multi_head_attention(self.projection_value(value))
258
+
259
+ attention_score = torch.einsum("bhlk,bhtk->bhlt", [query, key]) * self.scale
260
+ attention_probs = torch.nn.functional.softmax(attention_score, dim=-1)
261
+ attention_probs = self.dropout(attention_probs)
262
+
263
+ context = torch.einsum("bhlt,bhtv->bhlv", [attention_probs, value])
264
+ # rearrange"b h t d -> b t (h d)"
265
+ _, _, hidden_size, _ = context.shape
266
+ context = context.permute(0, 2, 1, 3).contiguous().view(batch_size, hidden_size, self.num_heads * head_dim)
267
+ return context
268
+
269
+
270
+ class CvtSelfOutput(nn.Module):
271
+ """
272
+ The residual connection is defined in CvtLayer instead of here (as is the case with other models), due to the
273
+ layernorm applied before each block.
274
+ """
275
+
276
+ def __init__(self, embed_dim, drop_rate):
277
+ super().__init__()
278
+ self.dense = nn.Linear(embed_dim, embed_dim)
279
+ self.dropout = nn.Dropout(drop_rate)
280
+
281
+ def forward(self, hidden_state, input_tensor):
282
+ hidden_state = self.dense(hidden_state)
283
+ hidden_state = self.dropout(hidden_state)
284
+ return hidden_state
285
+
286
+
287
+ class CvtAttention(nn.Module):
288
+ def __init__(
289
+ self,
290
+ num_heads,
291
+ embed_dim,
292
+ kernel_size,
293
+ padding_q,
294
+ padding_kv,
295
+ stride_q,
296
+ stride_kv,
297
+ qkv_projection_method,
298
+ qkv_bias,
299
+ attention_drop_rate,
300
+ drop_rate,
301
+ with_cls_token=True,
302
+ ):
303
+ super().__init__()
304
+ self.attention = CvtSelfAttention(
305
+ num_heads,
306
+ embed_dim,
307
+ kernel_size,
308
+ padding_q,
309
+ padding_kv,
310
+ stride_q,
311
+ stride_kv,
312
+ qkv_projection_method,
313
+ qkv_bias,
314
+ attention_drop_rate,
315
+ with_cls_token,
316
+ )
317
+ self.output = CvtSelfOutput(embed_dim, drop_rate)
318
+ self.pruned_heads = set()
319
+
320
+ def prune_heads(self, heads):
321
+ if len(heads) == 0:
322
+ return
323
+ heads, index = find_pruneable_heads_and_indices(
324
+ heads, self.attention.num_attention_heads, self.attention.attention_head_size, self.pruned_heads
325
+ )
326
+
327
+ # Prune linear layers
328
+ self.attention.query = prune_linear_layer(self.attention.query, index)
329
+ self.attention.key = prune_linear_layer(self.attention.key, index)
330
+ self.attention.value = prune_linear_layer(self.attention.value, index)
331
+ self.output.dense = prune_linear_layer(self.output.dense, index, dim=1)
332
+
333
+ # Update hyper params and store pruned heads
334
+ self.attention.num_attention_heads = self.attention.num_attention_heads - len(heads)
335
+ self.attention.all_head_size = self.attention.attention_head_size * self.attention.num_attention_heads
336
+ self.pruned_heads = self.pruned_heads.union(heads)
337
+
338
+ def forward(self, hidden_state, height, width):
339
+ self_output = self.attention(hidden_state, height, width)
340
+ attention_output = self.output(self_output, hidden_state)
341
+ return attention_output
342
+
343
+
344
+ class CvtIntermediate(nn.Module):
345
+ def __init__(self, embed_dim, mlp_ratio):
346
+ super().__init__()
347
+ self.dense = nn.Linear(embed_dim, int(embed_dim * mlp_ratio))
348
+ self.activation = nn.GELU()
349
+
350
+ def forward(self, hidden_state):
351
+ hidden_state = self.dense(hidden_state)
352
+ hidden_state = self.activation(hidden_state)
353
+ return hidden_state
354
+
355
+
356
+ class CvtOutput(nn.Module):
357
+ def __init__(self, embed_dim, mlp_ratio, drop_rate):
358
+ super().__init__()
359
+ self.dense = nn.Linear(int(embed_dim * mlp_ratio), embed_dim)
360
+ self.dropout = nn.Dropout(drop_rate)
361
+
362
+ def forward(self, hidden_state, input_tensor):
363
+ hidden_state = self.dense(hidden_state)
364
+ hidden_state = self.dropout(hidden_state)
365
+ hidden_state = hidden_state + input_tensor
366
+ return hidden_state
367
+
368
+
369
+ class CvtLayer(nn.Module):
370
+ """
371
+ CvtLayer composed by attention layers, normalization and multi-layer perceptrons (mlps).
372
+ """
373
+
374
+ def __init__(
375
+ self,
376
+ num_heads,
377
+ embed_dim,
378
+ kernel_size,
379
+ padding_q,
380
+ padding_kv,
381
+ stride_q,
382
+ stride_kv,
383
+ qkv_projection_method,
384
+ qkv_bias,
385
+ attention_drop_rate,
386
+ drop_rate,
387
+ mlp_ratio,
388
+ drop_path_rate,
389
+ with_cls_token=True,
390
+ ):
391
+ super().__init__()
392
+ self.attention = CvtAttention(
393
+ num_heads,
394
+ embed_dim,
395
+ kernel_size,
396
+ padding_q,
397
+ padding_kv,
398
+ stride_q,
399
+ stride_kv,
400
+ qkv_projection_method,
401
+ qkv_bias,
402
+ attention_drop_rate,
403
+ drop_rate,
404
+ with_cls_token,
405
+ )
406
+
407
+ self.intermediate = CvtIntermediate(embed_dim, mlp_ratio)
408
+ self.output = CvtOutput(embed_dim, mlp_ratio, drop_rate)
409
+ self.drop_path = CvtDropPath(drop_prob=drop_path_rate) if drop_path_rate > 0.0 else nn.Identity()
410
+ self.layernorm_before = nn.LayerNorm(embed_dim)
411
+ self.layernorm_after = nn.LayerNorm(embed_dim)
412
+
413
+ def forward(self, hidden_state, height, width):
414
+ self_attention_output = self.attention(
415
+ self.layernorm_before(hidden_state), # in Cvt, layernorm is applied before self-attention
416
+ height,
417
+ width,
418
+ )
419
+ attention_output = self_attention_output
420
+ attention_output = self.drop_path(attention_output)
421
+
422
+ # first residual connection
423
+ hidden_state = attention_output + hidden_state
424
+
425
+ # in Cvt, layernorm is also applied after self-attention
426
+ layer_output = self.layernorm_after(hidden_state)
427
+ layer_output = self.intermediate(layer_output)
428
+
429
+ # second residual connection is done here
430
+ layer_output = self.output(layer_output, hidden_state)
431
+ layer_output = self.drop_path(layer_output)
432
+ return layer_output
433
+
434
+
435
+ class CvtStage(nn.Module):
436
+ def __init__(self, config, stage):
437
+ super().__init__()
438
+ self.config = config
439
+ self.stage = stage
440
+ if self.config.cls_token[self.stage]:
441
+ self.cls_token = nn.Parameter(torch.randn(1, 1, self.config.embed_dim[-1]))
442
+
443
+ self.embedding = CvtEmbeddings(
444
+ patch_size=config.patch_sizes[self.stage],
445
+ stride=config.patch_stride[self.stage],
446
+ num_channels=config.num_channels if self.stage == 0 else config.embed_dim[self.stage - 1],
447
+ embed_dim=config.embed_dim[self.stage],
448
+ padding=config.patch_padding[self.stage],
449
+ dropout_rate=config.drop_rate[self.stage],
450
+ )
451
+
452
+ drop_path_rates = [x.item() for x in torch.linspace(0, config.drop_path_rate[self.stage], config.depth[stage])]
453
+
454
+ self.layers = nn.Sequential(
455
+ *[
456
+ CvtLayer(
457
+ num_heads=config.num_heads[self.stage],
458
+ embed_dim=config.embed_dim[self.stage],
459
+ kernel_size=config.kernel_qkv[self.stage],
460
+ padding_q=config.padding_q[self.stage],
461
+ padding_kv=config.padding_kv[self.stage],
462
+ stride_kv=config.stride_kv[self.stage],
463
+ stride_q=config.stride_q[self.stage],
464
+ qkv_projection_method=config.qkv_projection_method[self.stage],
465
+ qkv_bias=config.qkv_bias[self.stage],
466
+ attention_drop_rate=config.attention_drop_rate[self.stage],
467
+ drop_rate=config.drop_rate[self.stage],
468
+ drop_path_rate=drop_path_rates[self.stage],
469
+ mlp_ratio=config.mlp_ratio[self.stage],
470
+ with_cls_token=config.cls_token[self.stage],
471
+ )
472
+ for _ in range(config.depth[self.stage])
473
+ ]
474
+ )
475
+
476
+ def forward(self, hidden_state):
477
+ cls_token = None
478
+ hidden_state = self.embedding(hidden_state)
479
+ batch_size, num_channels, height, width = hidden_state.shape
480
+ # rearrange b c h w -> b (h w) c"
481
+ hidden_state = hidden_state.view(batch_size, num_channels, height * width).permute(0, 2, 1)
482
+ if self.config.cls_token[self.stage]:
483
+ cls_token = self.cls_token.expand(batch_size, -1, -1)
484
+ hidden_state = torch.cat((cls_token, hidden_state), dim=1)
485
+
486
+ for layer in self.layers:
487
+ layer_outputs = layer(hidden_state, height, width)
488
+ hidden_state = layer_outputs
489
+
490
+ if self.config.cls_token[self.stage]:
491
+ cls_token, hidden_state = torch.split(hidden_state, [1, height * width], 1)
492
+ hidden_state = hidden_state.permute(0, 2, 1).view(batch_size, num_channels, height, width)
493
+ return hidden_state, cls_token
494
+
495
+
496
+ class CvtEncoder(nn.Module):
497
+ def __init__(self, config):
498
+ super().__init__()
499
+ self.config = config
500
+ self.stages = nn.ModuleList([])
501
+ for stage_idx in range(len(config.depth)):
502
+ self.stages.append(CvtStage(config, stage_idx))
503
+
504
+ def forward(self, pixel_values, output_hidden_states=False, return_dict=True):
505
+ all_hidden_states = () if output_hidden_states else None
506
+ hidden_state = pixel_values
507
+
508
+ cls_token = None
509
+ for _, (stage_module) in enumerate(self.stages):
510
+ hidden_state, cls_token = stage_module(hidden_state)
511
+ if output_hidden_states:
512
+ all_hidden_states = all_hidden_states + (hidden_state,)
513
+
514
+ if not return_dict:
515
+ return tuple(v for v in [hidden_state, cls_token, all_hidden_states] if v is not None)
516
+
517
+ return BaseModelOutputWithCLSToken(
518
+ last_hidden_state=hidden_state,
519
+ cls_token_value=cls_token,
520
+ hidden_states=all_hidden_states,
521
+ )
522
+
523
+
524
+ class CvtPreTrainedModel(PreTrainedModel):
525
+ """
526
+ An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained
527
+ models.
528
+ """
529
+
530
+ config_class = CvtConfig
531
+ base_model_prefix = "cvt"
532
+ main_input_name = "pixel_values"
533
+ _no_split_modules = ["CvtLayer"]
534
+
535
+ def _init_weights(self, module):
536
+ """Initialize the weights"""
537
+ if isinstance(module, (nn.Linear, nn.Conv2d)):
538
+ module.weight.data = nn.init.trunc_normal_(module.weight.data, mean=0.0, std=self.config.initializer_range)
539
+ if module.bias is not None:
540
+ module.bias.data.zero_()
541
+ elif isinstance(module, nn.LayerNorm):
542
+ module.bias.data.zero_()
543
+ module.weight.data.fill_(1.0)
544
+ elif isinstance(module, CvtStage):
545
+ if self.config.cls_token[module.stage]:
546
+ module.cls_token.data = nn.init.trunc_normal_(
547
+ module.cls_token.data, mean=0.0, std=self.config.initializer_range
548
+ )
549
+
550
+
551
+ CVT_START_DOCSTRING = r"""
552
+ This model is a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass. Use it
553
+ as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage and
554
+ behavior.
555
+
556
+ Parameters:
557
+ config ([`CvtConfig`]): Model configuration class with all the parameters of the model.
558
+ Initializing with a config file does not load the weights associated with the model, only the
559
+ configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights.
560
+ """
561
+
562
+ CVT_INPUTS_DOCSTRING = r"""
563
+ Args:
564
+ pixel_values (`torch.FloatTensor` of shape `(batch_size, num_channels, height, width)`):
565
+ Pixel values. Pixel values can be obtained using [`AutoImageProcessor`]. See [`CvtImageProcessor.__call__`]
566
+ for details.
567
+ output_hidden_states (`bool`, *optional*):
568
+ Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
569
+ more detail.
570
+ return_dict (`bool`, *optional*):
571
+ Whether or not to return a [`~file_utils.ModelOutput`] instead of a plain tuple.
572
+ """
573
+
574
+
575
+ @add_start_docstrings(
576
+ "The bare Cvt Model transformer outputting raw hidden-states without any specific head on top.",
577
+ CVT_START_DOCSTRING,
578
+ )
579
+ class CvtModel(CvtPreTrainedModel):
580
+ def __init__(self, config, add_pooling_layer=True):
581
+ super().__init__(config)
582
+ self.config = config
583
+ self.encoder = CvtEncoder(config)
584
+ self.post_init()
585
+
586
+ def _prune_heads(self, heads_to_prune):
587
+ """
588
+ Prunes heads of the model. heads_to_prune: dict of {layer_num: list of heads to prune in this layer} See base
589
+ class PreTrainedModel
590
+ """
591
+ for layer, heads in heads_to_prune.items():
592
+ self.encoder.layer[layer].attention.prune_heads(heads)
593
+
594
+ @add_start_docstrings_to_model_forward(CVT_INPUTS_DOCSTRING)
595
+ @add_code_sample_docstrings(
596
+ checkpoint=_CHECKPOINT_FOR_DOC,
597
+ output_type=BaseModelOutputWithCLSToken,
598
+ config_class=_CONFIG_FOR_DOC,
599
+ modality="vision",
600
+ expected_output=_EXPECTED_OUTPUT_SHAPE,
601
+ )
602
+ def forward(
603
+ self,
604
+ pixel_values: Optional[torch.Tensor] = None,
605
+ output_hidden_states: Optional[bool] = None,
606
+ return_dict: Optional[bool] = None,
607
+ ) -> Union[Tuple, BaseModelOutputWithCLSToken]:
608
+ output_hidden_states = (
609
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
610
+ )
611
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
612
+
613
+ if pixel_values is None:
614
+ raise ValueError("You have to specify pixel_values")
615
+
616
+ encoder_outputs = self.encoder(
617
+ pixel_values,
618
+ output_hidden_states=output_hidden_states,
619
+ return_dict=return_dict,
620
+ )
621
+ sequence_output = encoder_outputs[0]
622
+
623
+ if not return_dict:
624
+ return (sequence_output,) + encoder_outputs[1:]
625
+
626
+ return BaseModelOutputWithCLSToken(
627
+ last_hidden_state=sequence_output,
628
+ cls_token_value=encoder_outputs.cls_token_value,
629
+ hidden_states=encoder_outputs.hidden_states,
630
+ )
631
+
632
+
633
+ @add_start_docstrings(
634
+ """
635
+ Cvt Model transformer with an image classification head on top (a linear layer on top of the final hidden state of
636
+ the [CLS] token) e.g. for ImageNet.
637
+ """,
638
+ CVT_START_DOCSTRING,
639
+ )
640
+ class CvtForImageClassification(CvtPreTrainedModel):
641
+ def __init__(self, config):
642
+ super().__init__(config)
643
+
644
+ self.num_labels = config.num_labels
645
+ self.cvt = CvtModel(config, add_pooling_layer=False)
646
+ self.layernorm = nn.LayerNorm(config.embed_dim[-1])
647
+ # Classifier head
648
+ self.classifier = (
649
+ nn.Linear(config.embed_dim[-1], config.num_labels) if config.num_labels > 0 else nn.Identity()
650
+ )
651
+
652
+ # Initialize weights and apply final processing
653
+ self.post_init()
654
+
655
+ @add_start_docstrings_to_model_forward(CVT_INPUTS_DOCSTRING)
656
+ @add_code_sample_docstrings(
657
+ checkpoint=_IMAGE_CLASS_CHECKPOINT,
658
+ output_type=ImageClassifierOutputWithNoAttention,
659
+ config_class=_CONFIG_FOR_DOC,
660
+ expected_output=_IMAGE_CLASS_EXPECTED_OUTPUT,
661
+ )
662
+ def forward(
663
+ self,
664
+ pixel_values: Optional[torch.Tensor] = None,
665
+ labels: Optional[torch.Tensor] = None,
666
+ output_hidden_states: Optional[bool] = None,
667
+ return_dict: Optional[bool] = None,
668
+ ) -> Union[Tuple, ImageClassifierOutputWithNoAttention]:
669
+ r"""
670
+ labels (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
671
+ Labels for computing the image classification/regression loss. Indices should be in `[0, ...,
672
+ config.num_labels - 1]`. If `config.num_labels == 1` a regression loss is computed (Mean-Square loss), If
673
+ `config.num_labels > 1` a classification loss is computed (Cross-Entropy).
674
+ """
675
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
676
+ outputs = self.cvt(
677
+ pixel_values,
678
+ output_hidden_states=output_hidden_states,
679
+ return_dict=return_dict,
680
+ )
681
+
682
+ sequence_output = outputs[0]
683
+ cls_token = outputs[1]
684
+ if self.config.cls_token[-1]:
685
+ sequence_output = self.layernorm(cls_token)
686
+ else:
687
+ batch_size, num_channels, height, width = sequence_output.shape
688
+ # rearrange "b c h w -> b (h w) c"
689
+ sequence_output = sequence_output.view(batch_size, num_channels, height * width).permute(0, 2, 1)
690
+ sequence_output = self.layernorm(sequence_output)
691
+
692
+ sequence_output_mean = sequence_output.mean(dim=1)
693
+ logits = self.classifier(sequence_output_mean)
694
+
695
+ loss = None
696
+ if labels is not None:
697
+ if self.config.problem_type is None:
698
+ if self.config.num_labels == 1:
699
+ self.config.problem_type = "regression"
700
+ elif self.config.num_labels > 1 and (labels.dtype == torch.long or labels.dtype == torch.int):
701
+ self.config.problem_type = "single_label_classification"
702
+ else:
703
+ self.config.problem_type = "multi_label_classification"
704
+
705
+ if self.config.problem_type == "regression":
706
+ loss_fct = MSELoss()
707
+ if self.config.num_labels == 1:
708
+ loss = loss_fct(logits.squeeze(), labels.squeeze())
709
+ else:
710
+ loss = loss_fct(logits, labels)
711
+ elif self.config.problem_type == "single_label_classification":
712
+ loss_fct = CrossEntropyLoss()
713
+ loss = loss_fct(logits.view(-1, self.config.num_labels), labels.view(-1))
714
+ elif self.config.problem_type == "multi_label_classification":
715
+ loss_fct = BCEWithLogitsLoss()
716
+ loss = loss_fct(logits, labels)
717
+
718
+ if not return_dict:
719
+ output = (logits,) + outputs[2:]
720
+ return ((loss,) + output) if loss is not None else output
721
+
722
+ return ImageClassifierOutputWithNoAttention(loss=loss, logits=logits, hidden_states=outputs.hidden_states)
723
+
724
+
725
+ __all__ = ["CvtForImageClassification", "CvtModel", "CvtPreTrainedModel"]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/cvt/modeling_tf_cvt.py ADDED
@@ -0,0 +1,1096 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2022 Microsoft Research and The HuggingFace Inc. team. All rights reserved.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """TF 2.0 Cvt model."""
16
+
17
+ from __future__ import annotations
18
+
19
+ import collections.abc
20
+ from dataclasses import dataclass
21
+ from typing import Optional, Tuple, Union
22
+
23
+ import tensorflow as tf
24
+
25
+ from ...modeling_tf_outputs import TFImageClassifierOutputWithNoAttention
26
+ from ...modeling_tf_utils import (
27
+ TFModelInputType,
28
+ TFPreTrainedModel,
29
+ TFSequenceClassificationLoss,
30
+ get_initializer,
31
+ keras,
32
+ keras_serializable,
33
+ unpack_inputs,
34
+ )
35
+ from ...tf_utils import shape_list, stable_softmax
36
+ from ...utils import (
37
+ ModelOutput,
38
+ add_start_docstrings,
39
+ add_start_docstrings_to_model_forward,
40
+ logging,
41
+ replace_return_docstrings,
42
+ )
43
+ from .configuration_cvt import CvtConfig
44
+
45
+
46
+ logger = logging.get_logger(__name__)
47
+
48
+ # General docstring
49
+ _CONFIG_FOR_DOC = "CvtConfig"
50
+
51
+
52
+ @dataclass
53
+ class TFBaseModelOutputWithCLSToken(ModelOutput):
54
+ """
55
+ Base class for model's outputs.
56
+
57
+ Args:
58
+ last_hidden_state (`tf.Tensor` of shape `(batch_size, sequence_length, hidden_size)`):
59
+ Sequence of hidden-states at the output of the last layer of the model.
60
+ cls_token_value (`tf.Tensor` of shape `(batch_size, 1, hidden_size)`):
61
+ Classification token at the output of the last layer of the model.
62
+ hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
63
+ Tuple of `tf.Tensor` (one for the output of the embeddings + one for the output of each layer) of shape
64
+ `(batch_size, sequence_length, hidden_size)`. Hidden-states of the model at the output of each layer plus
65
+ the initial embedding outputs.
66
+ """
67
+
68
+ last_hidden_state: tf.Tensor = None
69
+ cls_token_value: tf.Tensor = None
70
+ hidden_states: Tuple[tf.Tensor, ...] | None = None
71
+
72
+
73
+ class TFCvtDropPath(keras.layers.Layer):
74
+ """Drop paths (Stochastic Depth) per sample (when applied in main path of residual blocks).
75
+ References:
76
+ (1) github.com:rwightman/pytorch-image-models
77
+ """
78
+
79
+ def __init__(self, drop_prob: float, **kwargs):
80
+ super().__init__(**kwargs)
81
+ self.drop_prob = drop_prob
82
+
83
+ def call(self, x: tf.Tensor, training=None):
84
+ if self.drop_prob == 0.0 or not training:
85
+ return x
86
+ keep_prob = 1 - self.drop_prob
87
+ shape = (tf.shape(x)[0],) + (1,) * (len(tf.shape(x)) - 1)
88
+ random_tensor = keep_prob + tf.random.uniform(shape, 0, 1, dtype=self.compute_dtype)
89
+ random_tensor = tf.floor(random_tensor)
90
+ return (x / keep_prob) * random_tensor
91
+
92
+
93
+ class TFCvtEmbeddings(keras.layers.Layer):
94
+ """Construct the Convolutional Token Embeddings."""
95
+
96
+ def __init__(
97
+ self,
98
+ config: CvtConfig,
99
+ patch_size: int,
100
+ num_channels: int,
101
+ embed_dim: int,
102
+ stride: int,
103
+ padding: int,
104
+ dropout_rate: float,
105
+ **kwargs,
106
+ ):
107
+ super().__init__(**kwargs)
108
+ self.convolution_embeddings = TFCvtConvEmbeddings(
109
+ config,
110
+ patch_size=patch_size,
111
+ num_channels=num_channels,
112
+ embed_dim=embed_dim,
113
+ stride=stride,
114
+ padding=padding,
115
+ name="convolution_embeddings",
116
+ )
117
+ self.dropout = keras.layers.Dropout(dropout_rate)
118
+
119
+ def call(self, pixel_values: tf.Tensor, training: bool = False) -> tf.Tensor:
120
+ hidden_state = self.convolution_embeddings(pixel_values)
121
+ hidden_state = self.dropout(hidden_state, training=training)
122
+ return hidden_state
123
+
124
+ def build(self, input_shape=None):
125
+ if self.built:
126
+ return
127
+ self.built = True
128
+ if getattr(self, "convolution_embeddings", None) is not None:
129
+ with tf.name_scope(self.convolution_embeddings.name):
130
+ self.convolution_embeddings.build(None)
131
+
132
+
133
+ class TFCvtConvEmbeddings(keras.layers.Layer):
134
+ """Image to Convolution Embeddings. This convolutional operation aims to model local spatial contexts."""
135
+
136
+ def __init__(
137
+ self,
138
+ config: CvtConfig,
139
+ patch_size: int,
140
+ num_channels: int,
141
+ embed_dim: int,
142
+ stride: int,
143
+ padding: int,
144
+ **kwargs,
145
+ ):
146
+ super().__init__(**kwargs)
147
+ self.padding = keras.layers.ZeroPadding2D(padding=padding)
148
+ self.patch_size = patch_size if isinstance(patch_size, collections.abc.Iterable) else (patch_size, patch_size)
149
+ self.projection = keras.layers.Conv2D(
150
+ filters=embed_dim,
151
+ kernel_size=patch_size,
152
+ strides=stride,
153
+ padding="valid",
154
+ data_format="channels_last",
155
+ kernel_initializer=get_initializer(config.initializer_range),
156
+ name="projection",
157
+ )
158
+ # Using the same default epsilon as PyTorch
159
+ self.normalization = keras.layers.LayerNormalization(epsilon=1e-5, name="normalization")
160
+ self.num_channels = num_channels
161
+ self.embed_dim = embed_dim
162
+
163
+ def call(self, pixel_values: tf.Tensor) -> tf.Tensor:
164
+ if isinstance(pixel_values, dict):
165
+ pixel_values = pixel_values["pixel_values"]
166
+
167
+ pixel_values = self.projection(self.padding(pixel_values))
168
+
169
+ # "batch_size, height, width, num_channels -> batch_size, (height*width), num_channels"
170
+ batch_size, height, width, num_channels = shape_list(pixel_values)
171
+ hidden_size = height * width
172
+ pixel_values = tf.reshape(pixel_values, shape=(batch_size, hidden_size, num_channels))
173
+ pixel_values = self.normalization(pixel_values)
174
+
175
+ # "batch_size, (height*width), num_channels -> batch_size, height, width, num_channels"
176
+ pixel_values = tf.reshape(pixel_values, shape=(batch_size, height, width, num_channels))
177
+ return pixel_values
178
+
179
+ def build(self, input_shape=None):
180
+ if self.built:
181
+ return
182
+ self.built = True
183
+ if getattr(self, "projection", None) is not None:
184
+ with tf.name_scope(self.projection.name):
185
+ self.projection.build([None, None, None, self.num_channels])
186
+ if getattr(self, "normalization", None) is not None:
187
+ with tf.name_scope(self.normalization.name):
188
+ self.normalization.build([None, None, self.embed_dim])
189
+
190
+
191
+ class TFCvtSelfAttentionConvProjection(keras.layers.Layer):
192
+ """Convolutional projection layer."""
193
+
194
+ def __init__(self, config: CvtConfig, embed_dim: int, kernel_size: int, stride: int, padding: int, **kwargs):
195
+ super().__init__(**kwargs)
196
+ self.padding = keras.layers.ZeroPadding2D(padding=padding)
197
+ self.convolution = keras.layers.Conv2D(
198
+ filters=embed_dim,
199
+ kernel_size=kernel_size,
200
+ kernel_initializer=get_initializer(config.initializer_range),
201
+ padding="valid",
202
+ strides=stride,
203
+ use_bias=False,
204
+ name="convolution",
205
+ groups=embed_dim,
206
+ )
207
+ # Using the same default epsilon as PyTorch, TF uses (1 - pytorch momentum)
208
+ self.normalization = keras.layers.BatchNormalization(epsilon=1e-5, momentum=0.9, name="normalization")
209
+ self.embed_dim = embed_dim
210
+
211
+ def call(self, hidden_state: tf.Tensor, training: bool = False) -> tf.Tensor:
212
+ hidden_state = self.convolution(self.padding(hidden_state))
213
+ hidden_state = self.normalization(hidden_state, training=training)
214
+ return hidden_state
215
+
216
+ def build(self, input_shape=None):
217
+ if self.built:
218
+ return
219
+ self.built = True
220
+ if getattr(self, "convolution", None) is not None:
221
+ with tf.name_scope(self.convolution.name):
222
+ self.convolution.build([None, None, None, self.embed_dim])
223
+ if getattr(self, "normalization", None) is not None:
224
+ with tf.name_scope(self.normalization.name):
225
+ self.normalization.build([None, None, None, self.embed_dim])
226
+
227
+
228
+ class TFCvtSelfAttentionLinearProjection(keras.layers.Layer):
229
+ """Linear projection layer used to flatten tokens into 1D."""
230
+
231
+ def call(self, hidden_state: tf.Tensor) -> tf.Tensor:
232
+ # "batch_size, height, width, num_channels -> batch_size, (height*width), num_channels"
233
+ batch_size, height, width, num_channels = shape_list(hidden_state)
234
+ hidden_size = height * width
235
+ hidden_state = tf.reshape(hidden_state, shape=(batch_size, hidden_size, num_channels))
236
+ return hidden_state
237
+
238
+
239
+ class TFCvtSelfAttentionProjection(keras.layers.Layer):
240
+ """Convolutional Projection for Attention."""
241
+
242
+ def __init__(
243
+ self,
244
+ config: CvtConfig,
245
+ embed_dim: int,
246
+ kernel_size: int,
247
+ stride: int,
248
+ padding: int,
249
+ projection_method: str = "dw_bn",
250
+ **kwargs,
251
+ ):
252
+ super().__init__(**kwargs)
253
+ if projection_method == "dw_bn":
254
+ self.convolution_projection = TFCvtSelfAttentionConvProjection(
255
+ config, embed_dim, kernel_size, stride, padding, name="convolution_projection"
256
+ )
257
+ self.linear_projection = TFCvtSelfAttentionLinearProjection()
258
+
259
+ def call(self, hidden_state: tf.Tensor, training: bool = False) -> tf.Tensor:
260
+ hidden_state = self.convolution_projection(hidden_state, training=training)
261
+ hidden_state = self.linear_projection(hidden_state)
262
+ return hidden_state
263
+
264
+ def build(self, input_shape=None):
265
+ if self.built:
266
+ return
267
+ self.built = True
268
+ if getattr(self, "convolution_projection", None) is not None:
269
+ with tf.name_scope(self.convolution_projection.name):
270
+ self.convolution_projection.build(None)
271
+
272
+
273
+ class TFCvtSelfAttention(keras.layers.Layer):
274
+ """
275
+ Self-attention layer. A depth-wise separable convolution operation (Convolutional Projection), is applied for
276
+ query, key, and value embeddings.
277
+ """
278
+
279
+ def __init__(
280
+ self,
281
+ config: CvtConfig,
282
+ num_heads: int,
283
+ embed_dim: int,
284
+ kernel_size: int,
285
+ stride_q: int,
286
+ stride_kv: int,
287
+ padding_q: int,
288
+ padding_kv: int,
289
+ qkv_projection_method: str,
290
+ qkv_bias: bool,
291
+ attention_drop_rate: float,
292
+ with_cls_token: bool = True,
293
+ **kwargs,
294
+ ):
295
+ super().__init__(**kwargs)
296
+ self.scale = embed_dim**-0.5
297
+ self.with_cls_token = with_cls_token
298
+ self.embed_dim = embed_dim
299
+ self.num_heads = num_heads
300
+
301
+ self.convolution_projection_query = TFCvtSelfAttentionProjection(
302
+ config,
303
+ embed_dim,
304
+ kernel_size,
305
+ stride_q,
306
+ padding_q,
307
+ projection_method="linear" if qkv_projection_method == "avg" else qkv_projection_method,
308
+ name="convolution_projection_query",
309
+ )
310
+ self.convolution_projection_key = TFCvtSelfAttentionProjection(
311
+ config,
312
+ embed_dim,
313
+ kernel_size,
314
+ stride_kv,
315
+ padding_kv,
316
+ projection_method=qkv_projection_method,
317
+ name="convolution_projection_key",
318
+ )
319
+ self.convolution_projection_value = TFCvtSelfAttentionProjection(
320
+ config,
321
+ embed_dim,
322
+ kernel_size,
323
+ stride_kv,
324
+ padding_kv,
325
+ projection_method=qkv_projection_method,
326
+ name="convolution_projection_value",
327
+ )
328
+
329
+ self.projection_query = keras.layers.Dense(
330
+ units=embed_dim,
331
+ kernel_initializer=get_initializer(config.initializer_range),
332
+ use_bias=qkv_bias,
333
+ bias_initializer="zeros",
334
+ name="projection_query",
335
+ )
336
+ self.projection_key = keras.layers.Dense(
337
+ units=embed_dim,
338
+ kernel_initializer=get_initializer(config.initializer_range),
339
+ use_bias=qkv_bias,
340
+ bias_initializer="zeros",
341
+ name="projection_key",
342
+ )
343
+ self.projection_value = keras.layers.Dense(
344
+ units=embed_dim,
345
+ kernel_initializer=get_initializer(config.initializer_range),
346
+ use_bias=qkv_bias,
347
+ bias_initializer="zeros",
348
+ name="projection_value",
349
+ )
350
+ self.dropout = keras.layers.Dropout(attention_drop_rate)
351
+
352
+ def rearrange_for_multi_head_attention(self, hidden_state: tf.Tensor) -> tf.Tensor:
353
+ batch_size, hidden_size, _ = shape_list(hidden_state)
354
+ head_dim = self.embed_dim // self.num_heads
355
+ hidden_state = tf.reshape(hidden_state, shape=(batch_size, hidden_size, self.num_heads, head_dim))
356
+ hidden_state = tf.transpose(hidden_state, perm=(0, 2, 1, 3))
357
+ return hidden_state
358
+
359
+ def call(self, hidden_state: tf.Tensor, height: int, width: int, training: bool = False) -> tf.Tensor:
360
+ if self.with_cls_token:
361
+ cls_token, hidden_state = tf.split(hidden_state, [1, height * width], 1)
362
+
363
+ # "batch_size, (height*width), num_channels -> batch_size, height, width, num_channels"
364
+ batch_size, hidden_size, num_channels = shape_list(hidden_state)
365
+ hidden_state = tf.reshape(hidden_state, shape=(batch_size, height, width, num_channels))
366
+
367
+ key = self.convolution_projection_key(hidden_state, training=training)
368
+ query = self.convolution_projection_query(hidden_state, training=training)
369
+ value = self.convolution_projection_value(hidden_state, training=training)
370
+
371
+ if self.with_cls_token:
372
+ query = tf.concat((cls_token, query), axis=1)
373
+ key = tf.concat((cls_token, key), axis=1)
374
+ value = tf.concat((cls_token, value), axis=1)
375
+
376
+ head_dim = self.embed_dim // self.num_heads
377
+
378
+ query = self.rearrange_for_multi_head_attention(self.projection_query(query))
379
+ key = self.rearrange_for_multi_head_attention(self.projection_key(key))
380
+ value = self.rearrange_for_multi_head_attention(self.projection_value(value))
381
+
382
+ attention_score = tf.matmul(query, key, transpose_b=True) * self.scale
383
+ attention_probs = stable_softmax(logits=attention_score, axis=-1)
384
+ attention_probs = self.dropout(attention_probs, training=training)
385
+
386
+ context = tf.matmul(attention_probs, value)
387
+ # "batch_size, num_heads, hidden_size, head_dim -> batch_size, hidden_size, (num_heads*head_dim)"
388
+ _, _, hidden_size, _ = shape_list(context)
389
+ context = tf.transpose(context, perm=(0, 2, 1, 3))
390
+ context = tf.reshape(context, (batch_size, hidden_size, self.num_heads * head_dim))
391
+ return context
392
+
393
+ def build(self, input_shape=None):
394
+ if self.built:
395
+ return
396
+ self.built = True
397
+ if getattr(self, "convolution_projection_query", None) is not None:
398
+ with tf.name_scope(self.convolution_projection_query.name):
399
+ self.convolution_projection_query.build(None)
400
+ if getattr(self, "convolution_projection_key", None) is not None:
401
+ with tf.name_scope(self.convolution_projection_key.name):
402
+ self.convolution_projection_key.build(None)
403
+ if getattr(self, "convolution_projection_value", None) is not None:
404
+ with tf.name_scope(self.convolution_projection_value.name):
405
+ self.convolution_projection_value.build(None)
406
+ if getattr(self, "projection_query", None) is not None:
407
+ with tf.name_scope(self.projection_query.name):
408
+ self.projection_query.build([None, None, self.embed_dim])
409
+ if getattr(self, "projection_key", None) is not None:
410
+ with tf.name_scope(self.projection_key.name):
411
+ self.projection_key.build([None, None, self.embed_dim])
412
+ if getattr(self, "projection_value", None) is not None:
413
+ with tf.name_scope(self.projection_value.name):
414
+ self.projection_value.build([None, None, self.embed_dim])
415
+
416
+
417
+ class TFCvtSelfOutput(keras.layers.Layer):
418
+ """Output of the Attention layer ."""
419
+
420
+ def __init__(self, config: CvtConfig, embed_dim: int, drop_rate: float, **kwargs):
421
+ super().__init__(**kwargs)
422
+ self.dense = keras.layers.Dense(
423
+ units=embed_dim, kernel_initializer=get_initializer(config.initializer_range), name="dense"
424
+ )
425
+ self.dropout = keras.layers.Dropout(drop_rate)
426
+ self.embed_dim = embed_dim
427
+
428
+ def call(self, hidden_state: tf.Tensor, training: bool = False) -> tf.Tensor:
429
+ hidden_state = self.dense(inputs=hidden_state)
430
+ hidden_state = self.dropout(inputs=hidden_state, training=training)
431
+ return hidden_state
432
+
433
+ def build(self, input_shape=None):
434
+ if self.built:
435
+ return
436
+ self.built = True
437
+ if getattr(self, "dense", None) is not None:
438
+ with tf.name_scope(self.dense.name):
439
+ self.dense.build([None, None, self.embed_dim])
440
+
441
+
442
+ class TFCvtAttention(keras.layers.Layer):
443
+ """Attention layer. First chunk of the convolutional transformer block."""
444
+
445
+ def __init__(
446
+ self,
447
+ config: CvtConfig,
448
+ num_heads: int,
449
+ embed_dim: int,
450
+ kernel_size: int,
451
+ stride_q: int,
452
+ stride_kv: int,
453
+ padding_q: int,
454
+ padding_kv: int,
455
+ qkv_projection_method: str,
456
+ qkv_bias: bool,
457
+ attention_drop_rate: float,
458
+ drop_rate: float,
459
+ with_cls_token: bool = True,
460
+ **kwargs,
461
+ ):
462
+ super().__init__(**kwargs)
463
+ self.attention = TFCvtSelfAttention(
464
+ config,
465
+ num_heads,
466
+ embed_dim,
467
+ kernel_size,
468
+ stride_q,
469
+ stride_kv,
470
+ padding_q,
471
+ padding_kv,
472
+ qkv_projection_method,
473
+ qkv_bias,
474
+ attention_drop_rate,
475
+ with_cls_token,
476
+ name="attention",
477
+ )
478
+ self.dense_output = TFCvtSelfOutput(config, embed_dim, drop_rate, name="output")
479
+
480
+ def prune_heads(self, heads):
481
+ raise NotImplementedError
482
+
483
+ def call(self, hidden_state: tf.Tensor, height: int, width: int, training: bool = False):
484
+ self_output = self.attention(hidden_state, height, width, training=training)
485
+ attention_output = self.dense_output(self_output, training=training)
486
+ return attention_output
487
+
488
+ def build(self, input_shape=None):
489
+ if self.built:
490
+ return
491
+ self.built = True
492
+ if getattr(self, "attention", None) is not None:
493
+ with tf.name_scope(self.attention.name):
494
+ self.attention.build(None)
495
+ if getattr(self, "dense_output", None) is not None:
496
+ with tf.name_scope(self.dense_output.name):
497
+ self.dense_output.build(None)
498
+
499
+
500
+ class TFCvtIntermediate(keras.layers.Layer):
501
+ """Intermediate dense layer. Second chunk of the convolutional transformer block."""
502
+
503
+ def __init__(self, config: CvtConfig, embed_dim: int, mlp_ratio: int, **kwargs):
504
+ super().__init__(**kwargs)
505
+ self.dense = keras.layers.Dense(
506
+ units=int(embed_dim * mlp_ratio),
507
+ kernel_initializer=get_initializer(config.initializer_range),
508
+ activation="gelu",
509
+ name="dense",
510
+ )
511
+ self.embed_dim = embed_dim
512
+
513
+ def call(self, hidden_state: tf.Tensor) -> tf.Tensor:
514
+ hidden_state = self.dense(hidden_state)
515
+ return hidden_state
516
+
517
+ def build(self, input_shape=None):
518
+ if self.built:
519
+ return
520
+ self.built = True
521
+ if getattr(self, "dense", None) is not None:
522
+ with tf.name_scope(self.dense.name):
523
+ self.dense.build([None, None, self.embed_dim])
524
+
525
+
526
+ class TFCvtOutput(keras.layers.Layer):
527
+ """
528
+ Output of the Convolutional Transformer Block (last chunk). It consists of a MLP and a residual connection.
529
+ """
530
+
531
+ def __init__(self, config: CvtConfig, embed_dim: int, mlp_ratio: int, drop_rate: int, **kwargs):
532
+ super().__init__(**kwargs)
533
+ self.dense = keras.layers.Dense(
534
+ units=embed_dim, kernel_initializer=get_initializer(config.initializer_range), name="dense"
535
+ )
536
+ self.dropout = keras.layers.Dropout(drop_rate)
537
+ self.embed_dim = embed_dim
538
+ self.mlp_ratio = mlp_ratio
539
+
540
+ def call(self, hidden_state: tf.Tensor, input_tensor: tf.Tensor, training: bool = False) -> tf.Tensor:
541
+ hidden_state = self.dense(inputs=hidden_state)
542
+ hidden_state = self.dropout(inputs=hidden_state, training=training)
543
+ hidden_state = hidden_state + input_tensor
544
+ return hidden_state
545
+
546
+ def build(self, input_shape=None):
547
+ if self.built:
548
+ return
549
+ self.built = True
550
+ if getattr(self, "dense", None) is not None:
551
+ with tf.name_scope(self.dense.name):
552
+ self.dense.build([None, None, int(self.embed_dim * self.mlp_ratio)])
553
+
554
+
555
+ class TFCvtLayer(keras.layers.Layer):
556
+ """
557
+ Convolutional Transformer Block composed by attention layers, normalization and multi-layer perceptrons (mlps). It
558
+ consists of 3 chunks : an attention layer, an intermediate dense layer and an output layer. This corresponds to the
559
+ `Block` class in the original implementation.
560
+ """
561
+
562
+ def __init__(
563
+ self,
564
+ config: CvtConfig,
565
+ num_heads: int,
566
+ embed_dim: int,
567
+ kernel_size: int,
568
+ stride_q: int,
569
+ stride_kv: int,
570
+ padding_q: int,
571
+ padding_kv: int,
572
+ qkv_projection_method: str,
573
+ qkv_bias: bool,
574
+ attention_drop_rate: float,
575
+ drop_rate: float,
576
+ mlp_ratio: float,
577
+ drop_path_rate: float,
578
+ with_cls_token: bool = True,
579
+ **kwargs,
580
+ ):
581
+ super().__init__(**kwargs)
582
+ self.attention = TFCvtAttention(
583
+ config,
584
+ num_heads,
585
+ embed_dim,
586
+ kernel_size,
587
+ stride_q,
588
+ stride_kv,
589
+ padding_q,
590
+ padding_kv,
591
+ qkv_projection_method,
592
+ qkv_bias,
593
+ attention_drop_rate,
594
+ drop_rate,
595
+ with_cls_token,
596
+ name="attention",
597
+ )
598
+ self.intermediate = TFCvtIntermediate(config, embed_dim, mlp_ratio, name="intermediate")
599
+ self.dense_output = TFCvtOutput(config, embed_dim, mlp_ratio, drop_rate, name="output")
600
+ # Using `layers.Activation` instead of `tf.identity` to better control `training` behaviour.
601
+ self.drop_path = (
602
+ TFCvtDropPath(drop_path_rate, name="drop_path")
603
+ if drop_path_rate > 0.0
604
+ else keras.layers.Activation("linear", name="drop_path")
605
+ )
606
+ # Using the same default epsilon as PyTorch
607
+ self.layernorm_before = keras.layers.LayerNormalization(epsilon=1e-5, name="layernorm_before")
608
+ self.layernorm_after = keras.layers.LayerNormalization(epsilon=1e-5, name="layernorm_after")
609
+ self.embed_dim = embed_dim
610
+
611
+ def call(self, hidden_state: tf.Tensor, height: int, width: int, training: bool = False) -> tf.Tensor:
612
+ # in Cvt, layernorm is applied before self-attention
613
+ attention_output = self.attention(self.layernorm_before(hidden_state), height, width, training=training)
614
+ attention_output = self.drop_path(attention_output, training=training)
615
+
616
+ # first residual connection
617
+ hidden_state = attention_output + hidden_state
618
+
619
+ # in Cvt, layernorm is also applied after self-attention
620
+ layer_output = self.layernorm_after(hidden_state)
621
+ layer_output = self.intermediate(layer_output)
622
+
623
+ # second residual connection is done here
624
+ layer_output = self.dense_output(layer_output, hidden_state)
625
+ layer_output = self.drop_path(layer_output, training=training)
626
+ return layer_output
627
+
628
+ def build(self, input_shape=None):
629
+ if self.built:
630
+ return
631
+ self.built = True
632
+ if getattr(self, "attention", None) is not None:
633
+ with tf.name_scope(self.attention.name):
634
+ self.attention.build(None)
635
+ if getattr(self, "intermediate", None) is not None:
636
+ with tf.name_scope(self.intermediate.name):
637
+ self.intermediate.build(None)
638
+ if getattr(self, "dense_output", None) is not None:
639
+ with tf.name_scope(self.dense_output.name):
640
+ self.dense_output.build(None)
641
+ if getattr(self, "drop_path", None) is not None:
642
+ with tf.name_scope(self.drop_path.name):
643
+ self.drop_path.build(None)
644
+ if getattr(self, "layernorm_before", None) is not None:
645
+ with tf.name_scope(self.layernorm_before.name):
646
+ self.layernorm_before.build([None, None, self.embed_dim])
647
+ if getattr(self, "layernorm_after", None) is not None:
648
+ with tf.name_scope(self.layernorm_after.name):
649
+ self.layernorm_after.build([None, None, self.embed_dim])
650
+
651
+
652
+ class TFCvtStage(keras.layers.Layer):
653
+ """
654
+ Cvt stage (encoder block). Each stage has 2 parts :
655
+ - (1) A Convolutional Token Embedding layer
656
+ - (2) A Convolutional Transformer Block (layer).
657
+ The classification token is added only in the last stage.
658
+
659
+ Args:
660
+ config ([`CvtConfig`]): Model configuration class.
661
+ stage (`int`): Stage number.
662
+ """
663
+
664
+ def __init__(self, config: CvtConfig, stage: int, **kwargs):
665
+ super().__init__(**kwargs)
666
+ self.config = config
667
+ self.stage = stage
668
+ if self.config.cls_token[self.stage]:
669
+ self.cls_token = self.add_weight(
670
+ shape=(1, 1, self.config.embed_dim[-1]),
671
+ initializer=get_initializer(self.config.initializer_range),
672
+ trainable=True,
673
+ name="cvt.encoder.stages.2.cls_token",
674
+ )
675
+
676
+ self.embedding = TFCvtEmbeddings(
677
+ self.config,
678
+ patch_size=config.patch_sizes[self.stage],
679
+ num_channels=config.num_channels if self.stage == 0 else config.embed_dim[self.stage - 1],
680
+ stride=config.patch_stride[self.stage],
681
+ embed_dim=config.embed_dim[self.stage],
682
+ padding=config.patch_padding[self.stage],
683
+ dropout_rate=config.drop_rate[self.stage],
684
+ name="embedding",
685
+ )
686
+
687
+ drop_path_rates = tf.linspace(0.0, config.drop_path_rate[self.stage], config.depth[stage])
688
+ drop_path_rates = [x.numpy().item() for x in drop_path_rates]
689
+ self.layers = [
690
+ TFCvtLayer(
691
+ config,
692
+ num_heads=config.num_heads[self.stage],
693
+ embed_dim=config.embed_dim[self.stage],
694
+ kernel_size=config.kernel_qkv[self.stage],
695
+ stride_q=config.stride_q[self.stage],
696
+ stride_kv=config.stride_kv[self.stage],
697
+ padding_q=config.padding_q[self.stage],
698
+ padding_kv=config.padding_kv[self.stage],
699
+ qkv_projection_method=config.qkv_projection_method[self.stage],
700
+ qkv_bias=config.qkv_bias[self.stage],
701
+ attention_drop_rate=config.attention_drop_rate[self.stage],
702
+ drop_rate=config.drop_rate[self.stage],
703
+ mlp_ratio=config.mlp_ratio[self.stage],
704
+ drop_path_rate=drop_path_rates[self.stage],
705
+ with_cls_token=config.cls_token[self.stage],
706
+ name=f"layers.{j}",
707
+ )
708
+ for j in range(config.depth[self.stage])
709
+ ]
710
+
711
+ def call(self, hidden_state: tf.Tensor, training: bool = False):
712
+ cls_token = None
713
+ hidden_state = self.embedding(hidden_state, training)
714
+
715
+ # "batch_size, height, width, num_channels -> batch_size, (height*width), num_channels"
716
+ batch_size, height, width, num_channels = shape_list(hidden_state)
717
+ hidden_size = height * width
718
+ hidden_state = tf.reshape(hidden_state, shape=(batch_size, hidden_size, num_channels))
719
+
720
+ if self.config.cls_token[self.stage]:
721
+ cls_token = tf.repeat(self.cls_token, repeats=batch_size, axis=0)
722
+ hidden_state = tf.concat((cls_token, hidden_state), axis=1)
723
+
724
+ for layer in self.layers:
725
+ layer_outputs = layer(hidden_state, height, width, training=training)
726
+ hidden_state = layer_outputs
727
+
728
+ if self.config.cls_token[self.stage]:
729
+ cls_token, hidden_state = tf.split(hidden_state, [1, height * width], 1)
730
+
731
+ # "batch_size, (height*width), num_channels -> batch_size, height, width, num_channels"
732
+ hidden_state = tf.reshape(hidden_state, shape=(batch_size, height, width, num_channels))
733
+ return hidden_state, cls_token
734
+
735
+ def build(self, input_shape=None):
736
+ if self.built:
737
+ return
738
+ self.built = True
739
+ if getattr(self, "embedding", None) is not None:
740
+ with tf.name_scope(self.embedding.name):
741
+ self.embedding.build(None)
742
+ if getattr(self, "layers", None) is not None:
743
+ for layer in self.layers:
744
+ with tf.name_scope(layer.name):
745
+ layer.build(None)
746
+
747
+
748
+ class TFCvtEncoder(keras.layers.Layer):
749
+ """
750
+ Convolutional Vision Transformer encoder. CVT has 3 stages of encoder blocks with their respective number of layers
751
+ (depth) being 1, 2 and 10.
752
+
753
+ Args:
754
+ config ([`CvtConfig`]): Model configuration class.
755
+ """
756
+
757
+ config_class = CvtConfig
758
+
759
+ def __init__(self, config: CvtConfig, **kwargs):
760
+ super().__init__(**kwargs)
761
+ self.config = config
762
+ self.stages = [
763
+ TFCvtStage(config, stage_idx, name=f"stages.{stage_idx}") for stage_idx in range(len(config.depth))
764
+ ]
765
+
766
+ def call(
767
+ self,
768
+ pixel_values: TFModelInputType,
769
+ output_hidden_states: Optional[bool] = False,
770
+ return_dict: Optional[bool] = True,
771
+ training: Optional[bool] = False,
772
+ ) -> Union[TFBaseModelOutputWithCLSToken, Tuple[tf.Tensor]]:
773
+ all_hidden_states = () if output_hidden_states else None
774
+ hidden_state = pixel_values
775
+ # When running on CPU, `keras.layers.Conv2D` doesn't support (batch_size, num_channels, height, width)
776
+ # as input format. So change the input format to (batch_size, height, width, num_channels).
777
+ hidden_state = tf.transpose(hidden_state, perm=(0, 2, 3, 1))
778
+
779
+ cls_token = None
780
+ for _, (stage_module) in enumerate(self.stages):
781
+ hidden_state, cls_token = stage_module(hidden_state, training=training)
782
+ if output_hidden_states:
783
+ all_hidden_states = all_hidden_states + (hidden_state,)
784
+
785
+ # Change back to (batch_size, num_channels, height, width) format to have uniformity in the modules
786
+ hidden_state = tf.transpose(hidden_state, perm=(0, 3, 1, 2))
787
+ if output_hidden_states:
788
+ all_hidden_states = tuple([tf.transpose(hs, perm=(0, 3, 1, 2)) for hs in all_hidden_states])
789
+
790
+ if not return_dict:
791
+ return tuple(v for v in [hidden_state, cls_token, all_hidden_states] if v is not None)
792
+
793
+ return TFBaseModelOutputWithCLSToken(
794
+ last_hidden_state=hidden_state,
795
+ cls_token_value=cls_token,
796
+ hidden_states=all_hidden_states,
797
+ )
798
+
799
+ def build(self, input_shape=None):
800
+ if self.built:
801
+ return
802
+ self.built = True
803
+ if getattr(self, "stages", None) is not None:
804
+ for layer in self.stages:
805
+ with tf.name_scope(layer.name):
806
+ layer.build(None)
807
+
808
+
809
+ @keras_serializable
810
+ class TFCvtMainLayer(keras.layers.Layer):
811
+ """Construct the Cvt model."""
812
+
813
+ config_class = CvtConfig
814
+
815
+ def __init__(self, config: CvtConfig, **kwargs):
816
+ super().__init__(**kwargs)
817
+ self.config = config
818
+ self.encoder = TFCvtEncoder(config, name="encoder")
819
+
820
+ @unpack_inputs
821
+ def call(
822
+ self,
823
+ pixel_values: TFModelInputType | None = None,
824
+ output_hidden_states: Optional[bool] = None,
825
+ return_dict: Optional[bool] = None,
826
+ training: Optional[bool] = False,
827
+ ) -> Union[TFBaseModelOutputWithCLSToken, Tuple[tf.Tensor]]:
828
+ if pixel_values is None:
829
+ raise ValueError("You have to specify pixel_values")
830
+
831
+ encoder_outputs = self.encoder(
832
+ pixel_values,
833
+ output_hidden_states=output_hidden_states,
834
+ return_dict=return_dict,
835
+ training=training,
836
+ )
837
+
838
+ sequence_output = encoder_outputs[0]
839
+
840
+ if not return_dict:
841
+ return (sequence_output,) + encoder_outputs[1:]
842
+
843
+ return TFBaseModelOutputWithCLSToken(
844
+ last_hidden_state=sequence_output,
845
+ cls_token_value=encoder_outputs.cls_token_value,
846
+ hidden_states=encoder_outputs.hidden_states,
847
+ )
848
+
849
+ def build(self, input_shape=None):
850
+ if self.built:
851
+ return
852
+ self.built = True
853
+ if getattr(self, "encoder", None) is not None:
854
+ with tf.name_scope(self.encoder.name):
855
+ self.encoder.build(None)
856
+
857
+
858
+ class TFCvtPreTrainedModel(TFPreTrainedModel):
859
+ """
860
+ An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained
861
+ models.
862
+ """
863
+
864
+ config_class = CvtConfig
865
+ base_model_prefix = "cvt"
866
+ main_input_name = "pixel_values"
867
+
868
+
869
+ TFCVT_START_DOCSTRING = r"""
870
+
871
+ This model inherits from [`TFPreTrainedModel`]. Check the superclass documentation for the generic methods the
872
+ library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads
873
+ etc.)
874
+
875
+ This model is also a [keras.Model](https://www.tensorflow.org/api_docs/python/tf/keras/Model) subclass. Use it
876
+ as a regular TF 2.0 Keras Model and refer to the TF 2.0 documentation for all matter related to general usage and
877
+ behavior.
878
+
879
+ <Tip>
880
+
881
+ TF 2.0 models accepts two formats as inputs:
882
+
883
+ - having all inputs as keyword arguments (like PyTorch models), or
884
+ - having all inputs as a list, tuple or dict in the first positional arguments.
885
+
886
+ This second option is useful when using [`keras.Model.fit`] method which currently requires having all the
887
+ tensors in the first argument of the model call function: `model(inputs)`.
888
+
889
+ </Tip>
890
+
891
+ Args:
892
+ config ([`CvtConfig`]): Model configuration class with all the parameters of the model.
893
+ Initializing with a config file does not load the weights associated with the model, only the
894
+ configuration. Check out the [`~TFPreTrainedModel.from_pretrained`] method to load the model weights.
895
+ """
896
+
897
+ TFCVT_INPUTS_DOCSTRING = r"""
898
+ Args:
899
+ pixel_values (`np.ndarray`, `tf.Tensor`, `List[tf.Tensor]` ``Dict[str, tf.Tensor]` or `Dict[str, np.ndarray]` and each example must have the shape `(batch_size, num_channels, height, width)`):
900
+ Pixel values. Pixel values can be obtained using [`AutoImageProcessor`]. See [`CvtImageProcessor.__call__`]
901
+ for details.
902
+
903
+ output_hidden_states (`bool`, *optional*):
904
+ Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
905
+ more detail. This argument can be used only in eager mode, in graph mode the value in the config will be
906
+ used instead.
907
+ return_dict (`bool`, *optional*):
908
+ Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. This argument can be used in
909
+ eager mode, in graph mode the value will always be set to True.
910
+ training (`bool`, *optional*, defaults to `False``):
911
+ Whether or not to use the model in training mode (some modules like dropout modules have different
912
+ behaviors between training and evaluation).
913
+ """
914
+
915
+
916
+ @add_start_docstrings(
917
+ "The bare Cvt Model transformer outputting raw hidden-states without any specific head on top.",
918
+ TFCVT_START_DOCSTRING,
919
+ )
920
+ class TFCvtModel(TFCvtPreTrainedModel):
921
+ def __init__(self, config: CvtConfig, *inputs, **kwargs):
922
+ super().__init__(config, *inputs, **kwargs)
923
+
924
+ self.cvt = TFCvtMainLayer(config, name="cvt")
925
+
926
+ @unpack_inputs
927
+ @add_start_docstrings_to_model_forward(TFCVT_INPUTS_DOCSTRING)
928
+ @replace_return_docstrings(output_type=TFBaseModelOutputWithCLSToken, config_class=_CONFIG_FOR_DOC)
929
+ def call(
930
+ self,
931
+ pixel_values: tf.Tensor | None = None,
932
+ output_hidden_states: Optional[bool] = None,
933
+ return_dict: Optional[bool] = None,
934
+ training: Optional[bool] = False,
935
+ ) -> Union[TFBaseModelOutputWithCLSToken, Tuple[tf.Tensor]]:
936
+ r"""
937
+ Returns:
938
+
939
+ Examples:
940
+
941
+ ```python
942
+ >>> from transformers import AutoImageProcessor, TFCvtModel
943
+ >>> from PIL import Image
944
+ >>> import requests
945
+
946
+ >>> url = "http://images.cocodataset.org/val2017/000000039769.jpg"
947
+ >>> image = Image.open(requests.get(url, stream=True).raw)
948
+
949
+ >>> image_processor = AutoImageProcessor.from_pretrained("microsoft/cvt-13")
950
+ >>> model = TFCvtModel.from_pretrained("microsoft/cvt-13")
951
+
952
+ >>> inputs = image_processor(images=image, return_tensors="tf")
953
+ >>> outputs = model(**inputs)
954
+ >>> last_hidden_states = outputs.last_hidden_state
955
+ ```"""
956
+
957
+ if pixel_values is None:
958
+ raise ValueError("You have to specify pixel_values")
959
+
960
+ outputs = self.cvt(
961
+ pixel_values=pixel_values,
962
+ output_hidden_states=output_hidden_states,
963
+ return_dict=return_dict,
964
+ training=training,
965
+ )
966
+
967
+ if not return_dict:
968
+ return (outputs[0],) + outputs[1:]
969
+
970
+ return TFBaseModelOutputWithCLSToken(
971
+ last_hidden_state=outputs.last_hidden_state,
972
+ cls_token_value=outputs.cls_token_value,
973
+ hidden_states=outputs.hidden_states,
974
+ )
975
+
976
+ def build(self, input_shape=None):
977
+ if self.built:
978
+ return
979
+ self.built = True
980
+ if getattr(self, "cvt", None) is not None:
981
+ with tf.name_scope(self.cvt.name):
982
+ self.cvt.build(None)
983
+
984
+
985
+ @add_start_docstrings(
986
+ """
987
+ Cvt Model transformer with an image classification head on top (a linear layer on top of the final hidden state of
988
+ the [CLS] token) e.g. for ImageNet.
989
+ """,
990
+ TFCVT_START_DOCSTRING,
991
+ )
992
+ class TFCvtForImageClassification(TFCvtPreTrainedModel, TFSequenceClassificationLoss):
993
+ def __init__(self, config: CvtConfig, *inputs, **kwargs):
994
+ super().__init__(config, *inputs, **kwargs)
995
+
996
+ self.num_labels = config.num_labels
997
+ self.cvt = TFCvtMainLayer(config, name="cvt")
998
+ # Using same default epsilon as in the original implementation.
999
+ self.layernorm = keras.layers.LayerNormalization(epsilon=1e-5, name="layernorm")
1000
+
1001
+ # Classifier head
1002
+ self.classifier = keras.layers.Dense(
1003
+ units=config.num_labels,
1004
+ kernel_initializer=get_initializer(config.initializer_range),
1005
+ use_bias=True,
1006
+ bias_initializer="zeros",
1007
+ name="classifier",
1008
+ )
1009
+ self.config = config
1010
+
1011
+ @unpack_inputs
1012
+ @add_start_docstrings_to_model_forward(TFCVT_INPUTS_DOCSTRING)
1013
+ @replace_return_docstrings(output_type=TFImageClassifierOutputWithNoAttention, config_class=_CONFIG_FOR_DOC)
1014
+ def call(
1015
+ self,
1016
+ pixel_values: tf.Tensor | None = None,
1017
+ labels: tf.Tensor | None = None,
1018
+ output_hidden_states: Optional[bool] = None,
1019
+ return_dict: Optional[bool] = None,
1020
+ training: Optional[bool] = False,
1021
+ ) -> Union[TFImageClassifierOutputWithNoAttention, Tuple[tf.Tensor]]:
1022
+ r"""
1023
+ labels (`tf.Tensor` or `np.ndarray` of shape `(batch_size,)`, *optional*):
1024
+ Labels for computing the image classification/regression loss. Indices should be in `[0, ...,
1025
+ config.num_labels - 1]`. If `config.num_labels == 1` a regression loss is computed (Mean-Square loss), If
1026
+ `config.num_labels > 1` a classification loss is computed (Cross-Entropy).
1027
+
1028
+ Returns:
1029
+
1030
+ Examples:
1031
+
1032
+ ```python
1033
+ >>> from transformers import AutoImageProcessor, TFCvtForImageClassification
1034
+ >>> import tensorflow as tf
1035
+ >>> from PIL import Image
1036
+ >>> import requests
1037
+
1038
+ >>> url = "http://images.cocodataset.org/val2017/000000039769.jpg"
1039
+ >>> image = Image.open(requests.get(url, stream=True).raw)
1040
+
1041
+ >>> image_processor = AutoImageProcessor.from_pretrained("microsoft/cvt-13")
1042
+ >>> model = TFCvtForImageClassification.from_pretrained("microsoft/cvt-13")
1043
+
1044
+ >>> inputs = image_processor(images=image, return_tensors="tf")
1045
+ >>> outputs = model(**inputs)
1046
+ >>> logits = outputs.logits
1047
+ >>> # model predicts one of the 1000 ImageNet classes
1048
+ >>> predicted_class_idx = tf.math.argmax(logits, axis=-1)[0]
1049
+ >>> print("Predicted class:", model.config.id2label[int(predicted_class_idx)])
1050
+ ```"""
1051
+
1052
+ outputs = self.cvt(
1053
+ pixel_values,
1054
+ output_hidden_states=output_hidden_states,
1055
+ return_dict=return_dict,
1056
+ training=training,
1057
+ )
1058
+
1059
+ sequence_output = outputs[0]
1060
+ cls_token = outputs[1]
1061
+ if self.config.cls_token[-1]:
1062
+ sequence_output = self.layernorm(cls_token)
1063
+ else:
1064
+ # rearrange "batch_size, num_channels, height, width -> batch_size, (height*width), num_channels"
1065
+ batch_size, num_channels, height, width = shape_list(sequence_output)
1066
+ sequence_output = tf.reshape(sequence_output, shape=(batch_size, num_channels, height * width))
1067
+ sequence_output = tf.transpose(sequence_output, perm=(0, 2, 1))
1068
+ sequence_output = self.layernorm(sequence_output)
1069
+
1070
+ sequence_output_mean = tf.reduce_mean(sequence_output, axis=1)
1071
+ logits = self.classifier(sequence_output_mean)
1072
+ loss = None if labels is None else self.hf_compute_loss(labels=labels, logits=logits)
1073
+
1074
+ if not return_dict:
1075
+ output = (logits,) + outputs[2:]
1076
+ return ((loss,) + output) if loss is not None else output
1077
+
1078
+ return TFImageClassifierOutputWithNoAttention(loss=loss, logits=logits, hidden_states=outputs.hidden_states)
1079
+
1080
+ def build(self, input_shape=None):
1081
+ if self.built:
1082
+ return
1083
+ self.built = True
1084
+ if getattr(self, "cvt", None) is not None:
1085
+ with tf.name_scope(self.cvt.name):
1086
+ self.cvt.build(None)
1087
+ if getattr(self, "layernorm", None) is not None:
1088
+ with tf.name_scope(self.layernorm.name):
1089
+ self.layernorm.build([None, None, self.config.embed_dim[-1]])
1090
+ if getattr(self, "classifier", None) is not None:
1091
+ if hasattr(self.classifier, "name"):
1092
+ with tf.name_scope(self.classifier.name):
1093
+ self.classifier.build([None, None, self.config.embed_dim[-1]])
1094
+
1095
+
1096
+ __all__ = ["TFCvtForImageClassification", "TFCvtModel", "TFCvtPreTrainedModel"]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/dab_detr/__init__.py ADDED
@@ -0,0 +1,28 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # Copyright 2024 The HuggingFace Team. All rights reserved.
2
+ #
3
+ # Licensed under the Apache License, Version 2.0 (the "License");
4
+ # you may not use this file except in compliance with the License.
5
+ # You may obtain a copy of the License at
6
+ #
7
+ # http://www.apache.org/licenses/LICENSE-2.0
8
+ #
9
+ # Unless required by applicable law or agreed to in writing, software
10
+ # distributed under the License is distributed on an "AS IS" BASIS,
11
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12
+ # See the License for the specific language governing permissions and
13
+ # limitations under the License.
14
+
15
+ from typing import TYPE_CHECKING
16
+
17
+ from ...utils import _LazyModule
18
+ from ...utils.import_utils import define_import_structure
19
+
20
+
21
+ if TYPE_CHECKING:
22
+ from .configuration_dab_detr import *
23
+ from .modeling_dab_detr import *
24
+ else:
25
+ import sys
26
+
27
+ _file = globals()["__file__"]
28
+ sys.modules[__name__] = _LazyModule(__name__, _file, define_import_structure(_file), module_spec=__spec__)
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/dab_detr/configuration_dab_detr.py ADDED
@@ -0,0 +1,260 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2024 The HuggingFace Inc. team. All rights reserved.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """DAB-DETR model configuration"""
16
+
17
+ from ...configuration_utils import PretrainedConfig
18
+ from ...utils import logging
19
+ from ...utils.backbone_utils import verify_backbone_config_arguments
20
+ from ..auto import CONFIG_MAPPING
21
+
22
+
23
+ logger = logging.get_logger(__name__)
24
+
25
+
26
+ class DabDetrConfig(PretrainedConfig):
27
+ r"""
28
+ This is the configuration class to store the configuration of a [`DabDetrModel`]. It is used to instantiate
29
+ a DAB-DETR model according to the specified arguments, defining the model architecture. Instantiating a
30
+ configuration with the defaults will yield a similar configuration to that of the DAB-DETR
31
+ [IDEA-Research/dab_detr-base](https://huggingface.co/IDEA-Research/dab_detr-base) architecture.
32
+
33
+ Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
34
+ documentation from [`PretrainedConfig`] for more information.
35
+
36
+ Args:
37
+ use_timm_backbone (`bool`, *optional*, defaults to `True`):
38
+ Whether or not to use the `timm` library for the backbone. If set to `False`, will use the [`AutoBackbone`]
39
+ API.
40
+ backbone_config (`PretrainedConfig` or `dict`, *optional*):
41
+ The configuration of the backbone model. Only used in case `use_timm_backbone` is set to `False` in which
42
+ case it will default to `ResNetConfig()`.
43
+ backbone (`str`, *optional*, defaults to `"resnet50"`):
44
+ Name of backbone to use when `backbone_config` is `None`. If `use_pretrained_backbone` is `True`, this
45
+ will load the corresponding pretrained weights from the timm or transformers library. If `use_pretrained_backbone`
46
+ is `False`, this loads the backbone's config and uses that to initialize the backbone with random weights.
47
+ use_pretrained_backbone (`bool`, *optional*, defaults to `True`):
48
+ Whether to use pretrained weights for the backbone.
49
+ backbone_kwargs (`dict`, *optional*):
50
+ Keyword arguments to be passed to AutoBackbone when loading from a checkpoint
51
+ e.g. `{'out_indices': (0, 1, 2, 3)}`. Cannot be specified if `backbone_config` is set.
52
+ num_queries (`int`, *optional*, defaults to 300):
53
+ Number of object queries, i.e. detection slots. This is the maximal number of objects
54
+ [`DabDetrModel`] can detect in a single image. For COCO, we recommend 100 queries.
55
+ encoder_layers (`int`, *optional*, defaults to 6):
56
+ Number of encoder layers.
57
+ encoder_ffn_dim (`int`, *optional*, defaults to 2048):
58
+ Dimension of the "intermediate" (often named feed-forward) layer in encoder.
59
+ encoder_attention_heads (`int`, *optional*, defaults to 8):
60
+ Number of attention heads for each attention layer in the Transformer encoder.
61
+ decoder_layers (`int`, *optional*, defaults to 6):
62
+ Number of decoder layers.
63
+ decoder_ffn_dim (`int`, *optional*, defaults to 2048):
64
+ Dimension of the "intermediate" (often named feed-forward) layer in decoder.
65
+ decoder_attention_heads (`int`, *optional*, defaults to 8):
66
+ Number of attention heads for each attention layer in the Transformer decoder.
67
+ is_encoder_decoder (`bool`, *optional*, defaults to `True`):
68
+ Indicates whether the transformer model architecture is an encoder-decoder or not.
69
+ activation_function (`str` or `function`, *optional*, defaults to `"prelu"`):
70
+ The non-linear activation function (function or string) in the encoder and pooler. If string, `"gelu"`,
71
+ `"relu"`, `"silu"` and `"gelu_new"` are supported.
72
+ hidden_size (`int`, *optional*, defaults to 256):
73
+ This parameter is a general dimension parameter, defining dimensions for components such as the encoder layer and projection parameters in the decoder layer, among others.
74
+ dropout (`float`, *optional*, defaults to 0.1):
75
+ The dropout probability for all fully connected layers in the embeddings, encoder, and pooler.
76
+ attention_dropout (`float`, *optional*, defaults to 0.0):
77
+ The dropout ratio for the attention probabilities.
78
+ activation_dropout (`float`, *optional*, defaults to 0.0):
79
+ The dropout ratio for activations inside the fully connected layer.
80
+ init_std (`float`, *optional*, defaults to 0.02):
81
+ The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
82
+ init_xavier_std (`float`, *optional*, defaults to 1.0):
83
+ The scaling factor used for the Xavier initialization gain in the HM Attention map module.
84
+ auxiliary_loss (`bool`, *optional*, defaults to `False`):
85
+ Whether auxiliary decoding losses (loss at each decoder layer) are to be used.
86
+ dilation (`bool`, *optional*, defaults to `False`):
87
+ Whether to replace stride with dilation in the last convolutional block (DC5). Only supported when `use_timm_backbone` = `True`.
88
+ class_cost (`float`, *optional*, defaults to 2):
89
+ Relative weight of the classification error in the Hungarian matching cost.
90
+ bbox_cost (`float`, *optional*, defaults to 5):
91
+ Relative weight of the L1 error of the bounding box coordinates in the Hungarian matching cost.
92
+ giou_cost (`float`, *optional*, defaults to 2):
93
+ Relative weight of the generalized IoU loss of the bounding box in the Hungarian matching cost.
94
+ cls_loss_coefficient (`float`, *optional*, defaults to 2):
95
+ Relative weight of the classification loss in the object detection loss function.
96
+ bbox_loss_coefficient (`float`, *optional*, defaults to 5):
97
+ Relative weight of the L1 bounding box loss in the object detection loss.
98
+ giou_loss_coefficient (`float`, *optional*, defaults to 2):
99
+ Relative weight of the generalized IoU loss in the object detection loss.
100
+ focal_alpha (`float`, *optional*, defaults to 0.25):
101
+ Alpha parameter in the focal loss.
102
+ temperature_height (`int`, *optional*, defaults to 20):
103
+ Temperature parameter to tune the flatness of positional attention (HEIGHT)
104
+ temperature_width (`int`, *optional*, defaults to 20):
105
+ Temperature parameter to tune the flatness of positional attention (WIDTH)
106
+ query_dim (`int`, *optional*, defaults to 4):
107
+ Query dimension parameter represents the size of the output vector.
108
+ random_refpoints_xy (`bool`, *optional*, defaults to `False`):
109
+ Whether to fix the x and y coordinates of the anchor boxes with random initialization.
110
+ keep_query_pos (`bool`, *optional*, defaults to `False`):
111
+ Whether to concatenate the projected positional embedding from the object query into the original query (key) in every decoder layer.
112
+ num_patterns (`int`, *optional*, defaults to 0):
113
+ Number of pattern embeddings.
114
+ normalize_before (`bool`, *optional*, defaults to `False`):
115
+ Whether we use a normalization layer in the Encoder or not.
116
+ sine_position_embedding_scale (`float`, *optional*, defaults to 'None'):
117
+ Scaling factor applied to the normalized positional encodings.
118
+ initializer_bias_prior_prob (`float`, *optional*):
119
+ The prior probability used by the bias initializer to initialize biases for `enc_score_head` and `class_embed`.
120
+ If `None`, `prior_prob` computed as `prior_prob = 1 / (num_labels + 1)` while initializing model weights.
121
+
122
+
123
+ Examples:
124
+
125
+ ```python
126
+ >>> from transformers import DabDetrConfig, DabDetrModel
127
+
128
+ >>> # Initializing a DAB-DETR IDEA-Research/dab_detr-base style configuration
129
+ >>> configuration = DabDetrConfig()
130
+
131
+ >>> # Initializing a model (with random weights) from the IDEA-Research/dab_detr-base style configuration
132
+ >>> model = DabDetrModel(configuration)
133
+
134
+ >>> # Accessing the model configuration
135
+ >>> configuration = model.config
136
+ ```"""
137
+
138
+ model_type = "dab-detr"
139
+ keys_to_ignore_at_inference = ["past_key_values"]
140
+ attribute_map = {
141
+ "num_attention_heads": "encoder_attention_heads",
142
+ }
143
+
144
+ def __init__(
145
+ self,
146
+ use_timm_backbone=True,
147
+ backbone_config=None,
148
+ backbone="resnet50",
149
+ use_pretrained_backbone=True,
150
+ backbone_kwargs=None,
151
+ num_queries=300,
152
+ encoder_layers=6,
153
+ encoder_ffn_dim=2048,
154
+ encoder_attention_heads=8,
155
+ decoder_layers=6,
156
+ decoder_ffn_dim=2048,
157
+ decoder_attention_heads=8,
158
+ is_encoder_decoder=True,
159
+ activation_function="prelu",
160
+ hidden_size=256,
161
+ dropout=0.1,
162
+ attention_dropout=0.0,
163
+ activation_dropout=0.0,
164
+ init_std=0.02,
165
+ init_xavier_std=1.0,
166
+ auxiliary_loss=False,
167
+ dilation=False,
168
+ class_cost=2,
169
+ bbox_cost=5,
170
+ giou_cost=2,
171
+ cls_loss_coefficient=2,
172
+ bbox_loss_coefficient=5,
173
+ giou_loss_coefficient=2,
174
+ focal_alpha=0.25,
175
+ temperature_height=20,
176
+ temperature_width=20,
177
+ query_dim=4,
178
+ random_refpoints_xy=False,
179
+ keep_query_pos=False,
180
+ num_patterns=0,
181
+ normalize_before=False,
182
+ sine_position_embedding_scale=None,
183
+ initializer_bias_prior_prob=None,
184
+ **kwargs,
185
+ ):
186
+ if query_dim != 4:
187
+ raise ValueError("The query dimensions has to be 4.")
188
+
189
+ # We default to values which were previously hard-coded in the model. This enables configurability of the config
190
+ # while keeping the default behavior the same.
191
+ if use_timm_backbone and backbone_kwargs is None:
192
+ backbone_kwargs = {}
193
+ if dilation:
194
+ backbone_kwargs["output_stride"] = 16
195
+ backbone_kwargs["out_indices"] = [1, 2, 3, 4]
196
+ backbone_kwargs["in_chans"] = 3 # num_channels
197
+ # Backwards compatibility
198
+ elif not use_timm_backbone and backbone in (None, "resnet50"):
199
+ if backbone_config is None:
200
+ logger.info("`backbone_config` is `None`. Initializing the config with the default `ResNet` backbone.")
201
+ backbone_config = CONFIG_MAPPING["resnet"](out_features=["stage4"])
202
+ elif isinstance(backbone_config, dict):
203
+ backbone_model_type = backbone_config.get("model_type")
204
+ config_class = CONFIG_MAPPING[backbone_model_type]
205
+ backbone_config = config_class.from_dict(backbone_config)
206
+ backbone = None
207
+ # set timm attributes to None
208
+ dilation = None
209
+
210
+ verify_backbone_config_arguments(
211
+ use_timm_backbone=use_timm_backbone,
212
+ use_pretrained_backbone=use_pretrained_backbone,
213
+ backbone=backbone,
214
+ backbone_config=backbone_config,
215
+ backbone_kwargs=backbone_kwargs,
216
+ )
217
+
218
+ self.use_timm_backbone = use_timm_backbone
219
+ self.backbone_config = backbone_config
220
+ self.num_queries = num_queries
221
+ self.hidden_size = hidden_size
222
+ self.encoder_ffn_dim = encoder_ffn_dim
223
+ self.encoder_layers = encoder_layers
224
+ self.encoder_attention_heads = encoder_attention_heads
225
+ self.decoder_ffn_dim = decoder_ffn_dim
226
+ self.decoder_layers = decoder_layers
227
+ self.decoder_attention_heads = decoder_attention_heads
228
+ self.dropout = dropout
229
+ self.attention_dropout = attention_dropout
230
+ self.activation_dropout = activation_dropout
231
+ self.activation_function = activation_function
232
+ self.init_std = init_std
233
+ self.init_xavier_std = init_xavier_std
234
+ self.num_hidden_layers = encoder_layers
235
+ self.auxiliary_loss = auxiliary_loss
236
+ self.backbone = backbone
237
+ self.use_pretrained_backbone = use_pretrained_backbone
238
+ self.backbone_kwargs = backbone_kwargs
239
+ # Hungarian matcher
240
+ self.class_cost = class_cost
241
+ self.bbox_cost = bbox_cost
242
+ self.giou_cost = giou_cost
243
+ # Loss coefficients
244
+ self.cls_loss_coefficient = cls_loss_coefficient
245
+ self.bbox_loss_coefficient = bbox_loss_coefficient
246
+ self.giou_loss_coefficient = giou_loss_coefficient
247
+ self.focal_alpha = focal_alpha
248
+ self.query_dim = query_dim
249
+ self.random_refpoints_xy = random_refpoints_xy
250
+ self.keep_query_pos = keep_query_pos
251
+ self.num_patterns = num_patterns
252
+ self.normalize_before = normalize_before
253
+ self.temperature_width = temperature_width
254
+ self.temperature_height = temperature_height
255
+ self.sine_position_embedding_scale = sine_position_embedding_scale
256
+ self.initializer_bias_prior_prob = initializer_bias_prior_prob
257
+ super().__init__(is_encoder_decoder=is_encoder_decoder, **kwargs)
258
+
259
+
260
+ __all__ = ["DabDetrConfig"]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/dab_detr/convert_dab_detr_original_pytorch_checkpoint_to_pytorch.py ADDED
@@ -0,0 +1,233 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2024 The HuggingFace Inc. team.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """Convert DAB-DETR checkpoints."""
16
+
17
+ import argparse
18
+ import gc
19
+ import json
20
+ import re
21
+ from pathlib import Path
22
+
23
+ import torch
24
+ from huggingface_hub import hf_hub_download
25
+
26
+ from transformers import ConditionalDetrImageProcessor, DabDetrConfig, DabDetrForObjectDetection
27
+ from transformers.utils import logging
28
+
29
+
30
+ logging.set_verbosity_info()
31
+ logger = logging.get_logger(__name__)
32
+
33
+ ORIGINAL_TO_CONVERTED_KEY_MAPPING = {
34
+ # convolutional projection + query embeddings + layernorm of decoder + class and bounding box heads
35
+ # for dab-DETR, also convert reference point head and query scale MLP
36
+ r"input_proj\.(bias|weight)": r"input_projection.\1",
37
+ r"refpoint_embed\.weight": r"query_refpoint_embeddings.weight",
38
+ r"class_embed\.(bias|weight)": r"class_embed.\1",
39
+ # negative lookbehind because of the overlap
40
+ r"(?<!transformer\.decoder\.)bbox_embed\.layers\.(\d+)\.(bias|weight)": r"bbox_predictor.layers.\1.\2",
41
+ r"transformer\.encoder\.query_scale\.layers\.(\d+)\.(bias|weight)": r"encoder.query_scale.layers.\1.\2",
42
+ r"transformer\.decoder\.bbox_embed\.layers\.(\d+)\.(bias|weight)": r"decoder.bbox_embed.layers.\1.\2",
43
+ r"transformer\.decoder\.norm\.(bias|weight)": r"decoder.layernorm.\1",
44
+ r"transformer\.decoder\.ref_point_head\.layers\.(\d+)\.(bias|weight)": r"decoder.ref_point_head.layers.\1.\2",
45
+ r"transformer\.decoder\.ref_anchor_head\.layers\.(\d+)\.(bias|weight)": r"decoder.ref_anchor_head.layers.\1.\2",
46
+ r"transformer\.decoder\.query_scale\.layers\.(\d+)\.(bias|weight)": r"decoder.query_scale.layers.\1.\2",
47
+ r"transformer\.decoder\.layers\.0\.ca_qpos_proj\.(bias|weight)": r"decoder.layers.0.cross_attn.cross_attn_query_pos_proj.\1",
48
+ # encoder layers: output projection, 2 feedforward neural networks and 2 layernorms + activation function
49
+ # output projection
50
+ r"transformer\.encoder\.layers\.(\d+)\.self_attn\.out_proj\.(bias|weight)": r"encoder.layers.\1.self_attn.out_proj.\2",
51
+ # FFN layers
52
+ r"transformer\.encoder\.layers\.(\d+)\.linear(\d)\.(bias|weight)": r"encoder.layers.\1.fc\2.\3",
53
+ # normalization layers
54
+ # nm1
55
+ r"transformer\.encoder\.layers\.(\d+)\.norm1\.(bias|weight)": r"encoder.layers.\1.self_attn_layer_norm.\2",
56
+ # nm2
57
+ r"transformer\.encoder\.layers\.(\d+)\.norm2\.(bias|weight)": r"encoder.layers.\1.final_layer_norm.\2",
58
+ # activation function weight
59
+ r"transformer\.encoder\.layers\.(\d+)\.activation\.weight": r"encoder.layers.\1.activation_fn.weight",
60
+ #########################################################################################################################################
61
+ # decoder layers: 2 times output projection, 2 feedforward neural networks and 3 layernorms + activiation function weight
62
+ r"transformer\.decoder\.layers\.(\d+)\.self_attn\.out_proj\.(bias|weight)": r"decoder.layers.\1.self_attn.self_attn.output_proj.\2",
63
+ r"transformer\.decoder\.layers\.(\d+)\.cross_attn\.out_proj\.(bias|weight)": r"decoder.layers.\1.cross_attn.cross_attn.output_proj.\2",
64
+ # FFNs
65
+ r"transformer\.decoder\.layers\.(\d+)\.linear(\d)\.(bias|weight)": r"decoder.layers.\1.mlp.fc\2.\3",
66
+ # nm1
67
+ r"transformer\.decoder\.layers\.(\d+)\.norm1\.(bias|weight)": r"decoder.layers.\1.self_attn.self_attn_layer_norm.\2",
68
+ # nm2
69
+ r"transformer\.decoder\.layers\.(\d+)\.norm2\.(bias|weight)": r"decoder.layers.\1.cross_attn.cross_attn_layer_norm.\2",
70
+ # nm3
71
+ r"transformer\.decoder\.layers\.(\d+)\.norm3\.(bias|weight)": r"decoder.layers.\1.mlp.final_layer_norm.\2",
72
+ # activation function weight
73
+ r"transformer\.decoder\.layers\.(\d+)\.activation\.weight": r"decoder.layers.\1.mlp.activation_fn.weight",
74
+ # q, k, v projections and biases in self-attention in decoder
75
+ r"transformer\.decoder\.layers\.(\d+)\.sa_qcontent_proj\.(bias|weight)": r"decoder.layers.\1.self_attn.self_attn_query_content_proj.\2",
76
+ r"transformer\.decoder\.layers\.(\d+)\.sa_kcontent_proj\.(bias|weight)": r"decoder.layers.\1.self_attn.self_attn_key_content_proj.\2",
77
+ r"transformer\.decoder\.layers\.(\d+)\.sa_qpos_proj\.(bias|weight)": r"decoder.layers.\1.self_attn.self_attn_query_pos_proj.\2",
78
+ r"transformer\.decoder\.layers\.(\d+)\.sa_kpos_proj\.(bias|weight)": r"decoder.layers.\1.self_attn.self_attn_key_pos_proj.\2",
79
+ r"transformer\.decoder\.layers\.(\d+)\.sa_v_proj\.(bias|weight)": r"decoder.layers.\1.self_attn.self_attn_value_proj.\2",
80
+ # q, k, v projections in cross-attention in decoder
81
+ r"transformer\.decoder\.layers\.(\d+)\.ca_qcontent_proj\.(bias|weight)": r"decoder.layers.\1.cross_attn.cross_attn_query_content_proj.\2",
82
+ r"transformer\.decoder\.layers\.(\d+)\.ca_kcontent_proj\.(bias|weight)": r"decoder.layers.\1.cross_attn.cross_attn_key_content_proj.\2",
83
+ r"transformer\.decoder\.layers\.(\d+)\.ca_kpos_proj\.(bias|weight)": r"decoder.layers.\1.cross_attn.cross_attn_key_pos_proj.\2",
84
+ r"transformer\.decoder\.layers\.(\d+)\.ca_v_proj\.(bias|weight)": r"decoder.layers.\1.cross_attn.cross_attn_value_proj.\2",
85
+ r"transformer\.decoder\.layers\.(\d+)\.ca_qpos_sine_proj\.(bias|weight)": r"decoder.layers.\1.cross_attn.cross_attn_query_pos_sine_proj.\2",
86
+ }
87
+
88
+
89
+ # Copied from transformers.models.mllama.convert_mllama_weights_to_hf.convert_old_keys_to_new_keys
90
+ def convert_old_keys_to_new_keys(state_dict_keys: dict = None):
91
+ """
92
+ This function should be applied only once, on the concatenated keys to efficiently rename using
93
+ the key mappings.
94
+ """
95
+ output_dict = {}
96
+ if state_dict_keys is not None:
97
+ old_text = "\n".join(state_dict_keys)
98
+ new_text = old_text
99
+ for pattern, replacement in ORIGINAL_TO_CONVERTED_KEY_MAPPING.items():
100
+ if replacement is None:
101
+ new_text = re.sub(pattern, "", new_text) # an empty line
102
+ continue
103
+ new_text = re.sub(pattern, replacement, new_text)
104
+ output_dict = dict(zip(old_text.split("\n"), new_text.split("\n")))
105
+ return output_dict
106
+
107
+
108
+ def write_image_processor(model_name, pytorch_dump_folder_path, push_to_hub):
109
+ logger.info("Converting image processor...")
110
+ format = "coco_detection"
111
+ image_processor = ConditionalDetrImageProcessor(format=format)
112
+ Path(pytorch_dump_folder_path).mkdir(exist_ok=True)
113
+ image_processor.save_pretrained(pytorch_dump_folder_path)
114
+
115
+ if push_to_hub:
116
+ image_processor.push_to_hub(repo_id=model_name, commit_message="Add new image processor")
117
+
118
+
119
+ @torch.no_grad()
120
+ def write_model(model_name, pretrained_model_weights_path, pytorch_dump_folder_path, push_to_hub):
121
+ # load modified config. Why? After loading the default config, the backbone kwargs are already set.
122
+ if "dc5" in model_name:
123
+ config = DabDetrConfig(dilation=True)
124
+ else:
125
+ # load default config
126
+ config = DabDetrConfig()
127
+ # set other attributes
128
+ if "dab-detr-resnet-50-dc5" == model_name:
129
+ config.temperature_height = 10
130
+ config.temperature_width = 10
131
+ if "fixxy" in model_name:
132
+ config.random_refpoints_xy = True
133
+ if "pat3" in model_name:
134
+ config.num_patterns = 3
135
+ # only when the number of patterns (num_patterns parameter in config) are more than 0 like r50-pat3 or r50dc5-pat3
136
+ ORIGINAL_TO_CONVERTED_KEY_MAPPING.update({r"transformer.patterns.weight": r"patterns.weight"})
137
+
138
+ config.num_labels = 91
139
+ repo_id = "huggingface/label-files"
140
+ filename = "coco-detection-id2label.json"
141
+ id2label = json.load(open(hf_hub_download(repo_id, filename, repo_type="dataset"), "r"))
142
+ id2label = {int(k): v for k, v in id2label.items()}
143
+ config.id2label = id2label
144
+ config.label2id = {v: k for k, v in id2label.items()}
145
+ # load original model from local path
146
+ loaded = torch.load(pretrained_model_weights_path, map_location=torch.device("cpu"))["model"]
147
+ # Renaming the original model state dictionary to HF compatibile
148
+ all_keys = list(loaded.keys())
149
+ new_keys = convert_old_keys_to_new_keys(all_keys)
150
+ state_dict = {}
151
+ for key in all_keys:
152
+ if "backbone.0.body" in key:
153
+ new_key = key.replace("backbone.0.body", "backbone.conv_encoder.model._backbone")
154
+ state_dict[new_key] = loaded[key]
155
+ # Q, K, V encoder values mapping
156
+ elif re.search("self_attn.in_proj_(weight|bias)", key):
157
+ # Dynamically find the layer number
158
+ pattern = r"layers\.(\d+)\.self_attn\.in_proj_(weight|bias)"
159
+ match = re.search(pattern, key)
160
+ if match:
161
+ layer_num = match.group(1)
162
+ else:
163
+ raise ValueError(f"Pattern not found in key: {key}")
164
+
165
+ in_proj_value = loaded.pop(key)
166
+ if "weight" in key:
167
+ state_dict[f"encoder.layers.{layer_num}.self_attn.q_proj.weight"] = in_proj_value[:256, :]
168
+ state_dict[f"encoder.layers.{layer_num}.self_attn.k_proj.weight"] = in_proj_value[256:512, :]
169
+ state_dict[f"encoder.layers.{layer_num}.self_attn.v_proj.weight"] = in_proj_value[-256:, :]
170
+ elif "bias" in key:
171
+ state_dict[f"encoder.layers.{layer_num}.self_attn.q_proj.bias"] = in_proj_value[:256]
172
+ state_dict[f"encoder.layers.{layer_num}.self_attn.k_proj.bias"] = in_proj_value[256:512]
173
+ state_dict[f"encoder.layers.{layer_num}.self_attn.v_proj.bias"] = in_proj_value[-256:]
174
+ else:
175
+ new_key = new_keys[key]
176
+ state_dict[new_key] = loaded[key]
177
+
178
+ del loaded
179
+ gc.collect()
180
+ # important: we need to prepend a prefix to each of the base model keys as the head models use different attributes for them
181
+ prefix = "model."
182
+ for key in state_dict.copy().keys():
183
+ if not key.startswith("class_embed") and not key.startswith("bbox_predictor"):
184
+ val = state_dict.pop(key)
185
+ state_dict[prefix + key] = val
186
+ # finally, create HuggingFace model and load state dict
187
+ model = DabDetrForObjectDetection(config)
188
+ model.load_state_dict(state_dict)
189
+ model.eval()
190
+ logger.info(f"Saving PyTorch model to {pytorch_dump_folder_path}...")
191
+ Path(pytorch_dump_folder_path).mkdir(exist_ok=True)
192
+ model.save_pretrained(pytorch_dump_folder_path)
193
+
194
+ if push_to_hub:
195
+ model.push_to_hub(repo_id=model_name, commit_message="Add new model")
196
+
197
+
198
+ def convert_dab_detr_checkpoint(model_name, pretrained_model_weights_path, pytorch_dump_folder_path, push_to_hub):
199
+ logger.info("Converting image processor...")
200
+ write_image_processor(model_name, pytorch_dump_folder_path, push_to_hub)
201
+
202
+ logger.info(f"Converting model {model_name}...")
203
+ write_model(model_name, pretrained_model_weights_path, pytorch_dump_folder_path, push_to_hub)
204
+
205
+
206
+ if __name__ == "__main__":
207
+ parser = argparse.ArgumentParser()
208
+
209
+ parser.add_argument(
210
+ "--model_name",
211
+ default="dab-detr-resnet-50",
212
+ type=str,
213
+ help="Name of the DAB_DETR model you'd like to convert.",
214
+ )
215
+ parser.add_argument(
216
+ "--pretrained_model_weights_path",
217
+ default="modelzoo/R50/checkpoint.pth",
218
+ type=str,
219
+ help="The path of the original model weights like: modelzoo/checkpoint.pth",
220
+ )
221
+ parser.add_argument(
222
+ "--pytorch_dump_folder_path", default="DAB_DETR", type=str, help="Path to the folder to output PyTorch model."
223
+ )
224
+ parser.add_argument(
225
+ "--push_to_hub",
226
+ default=True,
227
+ type=bool,
228
+ help="Whether to upload the converted weights and image processor config to the HuggingFace model profile. Default is set to false.",
229
+ )
230
+ args = parser.parse_args()
231
+ convert_dab_detr_checkpoint(
232
+ args.model_name, args.pretrained_model_weights_path, args.pytorch_dump_folder_path, args.push_to_hub
233
+ )
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/dab_detr/modeling_dab_detr.py ADDED
@@ -0,0 +1,1716 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2024 IDEA Research and The HuggingFace Inc. team. All rights reserved.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """PyTorch DAB-DETR model."""
16
+
17
+ import math
18
+ from dataclasses import dataclass
19
+ from typing import Dict, List, Optional, Tuple, Union
20
+
21
+ import torch
22
+ from torch import Tensor, nn
23
+
24
+ from ...activations import ACT2FN
25
+ from ...modeling_attn_mask_utils import _prepare_4d_attention_mask
26
+ from ...modeling_outputs import BaseModelOutput, BaseModelOutputWithCrossAttentions, Seq2SeqModelOutput
27
+ from ...modeling_utils import PreTrainedModel
28
+ from ...utils import (
29
+ ModelOutput,
30
+ add_start_docstrings,
31
+ add_start_docstrings_to_model_forward,
32
+ logging,
33
+ replace_return_docstrings,
34
+ )
35
+ from ...utils.backbone_utils import load_backbone
36
+ from .configuration_dab_detr import DabDetrConfig
37
+
38
+
39
+ logger = logging.get_logger(__name__)
40
+
41
+ _CONFIG_FOR_DOC = "DabDetrConfig"
42
+ _CHECKPOINT_FOR_DOC = "IDEA-Research/dab_detr-base"
43
+
44
+
45
+ @dataclass
46
+ # Copied from transformers.models.conditional_detr.modeling_conditional_detr.ConditionalDetrDecoderOutput with ConditionalDetr->DabDetr,Conditional DETR->DAB-DETR,2 (anchor points)->4 (anchor points)
47
+ class DabDetrDecoderOutput(BaseModelOutputWithCrossAttentions):
48
+ """
49
+ Base class for outputs of the Conditional DETR decoder. This class adds one attribute to
50
+ BaseModelOutputWithCrossAttentions, namely an optional stack of intermediate decoder activations, i.e. the output
51
+ of each decoder layer, each of them gone through a layernorm. This is useful when training the model with auxiliary
52
+ decoding losses.
53
+
54
+ Args:
55
+ last_hidden_state (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`):
56
+ Sequence of hidden-states at the output of the last layer of the model.
57
+ hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
58
+ Tuple of `torch.FloatTensor` (one for the output of the embeddings + one for the output of each layer) of
59
+ shape `(batch_size, sequence_length, hidden_size)`. Hidden-states of the model at the output of each layer
60
+ plus the initial embedding outputs.
61
+ attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
62
+ Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
63
+ sequence_length)`. Attentions weights after the attention softmax, used to compute the weighted average in
64
+ the self-attention heads.
65
+ cross_attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` and `config.add_cross_attention=True` is passed or when `config.output_attentions=True`):
66
+ Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
67
+ sequence_length)`. Attentions weights of the decoder's cross-attention layer, after the attention softmax,
68
+ used to compute the weighted average in the cross-attention heads.
69
+ intermediate_hidden_states (`torch.FloatTensor` of shape `(config.decoder_layers, batch_size, num_queries, hidden_size)`, *optional*, returned when `config.auxiliary_loss=True`):
70
+ Intermediate decoder activations, i.e. the output of each decoder layer, each of them gone through a
71
+ layernorm.
72
+ reference_points (`torch.FloatTensor` of shape `(config.decoder_layers, batch_size, num_queries, 2 (anchor points))`):
73
+ Reference points (reference points of each layer of the decoder).
74
+ """
75
+
76
+ intermediate_hidden_states: Optional[torch.FloatTensor] = None
77
+ reference_points: Optional[Tuple[torch.FloatTensor]] = None
78
+
79
+
80
+ @dataclass
81
+ # Copied from transformers.models.conditional_detr.modeling_conditional_detr.ConditionalDetrModelOutput with ConditionalDetr->DabDetr,Conditional DETR->DAB-DETR,2 (anchor points)->4 (anchor points)
82
+ class DabDetrModelOutput(Seq2SeqModelOutput):
83
+ """
84
+ Base class for outputs of the Conditional DETR encoder-decoder model. This class adds one attribute to
85
+ Seq2SeqModelOutput, namely an optional stack of intermediate decoder activations, i.e. the output of each decoder
86
+ layer, each of them gone through a layernorm. This is useful when training the model with auxiliary decoding
87
+ losses.
88
+
89
+ Args:
90
+ last_hidden_state (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`):
91
+ Sequence of hidden-states at the output of the last layer of the decoder of the model.
92
+ decoder_hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
93
+ Tuple of `torch.FloatTensor` (one for the output of the embeddings + one for the output of each layer) of
94
+ shape `(batch_size, sequence_length, hidden_size)`. Hidden-states of the decoder at the output of each
95
+ layer plus the initial embedding outputs.
96
+ decoder_attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
97
+ Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
98
+ sequence_length)`. Attentions weights of the decoder, after the attention softmax, used to compute the
99
+ weighted average in the self-attention heads.
100
+ cross_attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
101
+ Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
102
+ sequence_length)`. Attentions weights of the decoder's cross-attention layer, after the attention softmax,
103
+ used to compute the weighted average in the cross-attention heads.
104
+ encoder_last_hidden_state (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*):
105
+ Sequence of hidden-states at the output of the last layer of the encoder of the model.
106
+ encoder_hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
107
+ Tuple of `torch.FloatTensor` (one for the output of the embeddings + one for the output of each layer) of
108
+ shape `(batch_size, sequence_length, hidden_size)`. Hidden-states of the encoder at the output of each
109
+ layer plus the initial embedding outputs.
110
+ encoder_attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
111
+ Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
112
+ sequence_length)`. Attentions weights of the encoder, after the attention softmax, used to compute the
113
+ weighted average in the self-attention heads.
114
+ intermediate_hidden_states (`torch.FloatTensor` of shape `(config.decoder_layers, batch_size, sequence_length, hidden_size)`, *optional*, returned when `config.auxiliary_loss=True`):
115
+ Intermediate decoder activations, i.e. the output of each decoder layer, each of them gone through a
116
+ layernorm.
117
+ reference_points (`torch.FloatTensor` of shape `(config.decoder_layers, batch_size, num_queries, 2 (anchor points))`):
118
+ Reference points (reference points of each layer of the decoder).
119
+ """
120
+
121
+ intermediate_hidden_states: Optional[torch.FloatTensor] = None
122
+ reference_points: Optional[Tuple[torch.FloatTensor]] = None
123
+
124
+
125
+ @dataclass
126
+ # Copied from transformers.models.detr.modeling_detr.DetrObjectDetectionOutput with Detr->DabDetr
127
+ class DabDetrObjectDetectionOutput(ModelOutput):
128
+ """
129
+ Output type of [`DabDetrForObjectDetection`].
130
+
131
+ Args:
132
+ loss (`torch.FloatTensor` of shape `(1,)`, *optional*, returned when `labels` are provided)):
133
+ Total loss as a linear combination of a negative log-likehood (cross-entropy) for class prediction and a
134
+ bounding box loss. The latter is defined as a linear combination of the L1 loss and the generalized
135
+ scale-invariant IoU loss.
136
+ loss_dict (`Dict`, *optional*):
137
+ A dictionary containing the individual losses. Useful for logging.
138
+ logits (`torch.FloatTensor` of shape `(batch_size, num_queries, num_classes + 1)`):
139
+ Classification logits (including no-object) for all queries.
140
+ pred_boxes (`torch.FloatTensor` of shape `(batch_size, num_queries, 4)`):
141
+ Normalized boxes coordinates for all queries, represented as (center_x, center_y, width, height). These
142
+ values are normalized in [0, 1], relative to the size of each individual image in the batch (disregarding
143
+ possible padding). You can use [`~DabDetrImageProcessor.post_process_object_detection`] to retrieve the
144
+ unnormalized bounding boxes.
145
+ auxiliary_outputs (`list[Dict]`, *optional*):
146
+ Optional, only returned when auxilary losses are activated (i.e. `config.auxiliary_loss` is set to `True`)
147
+ and labels are provided. It is a list of dictionaries containing the two above keys (`logits` and
148
+ `pred_boxes`) for each decoder layer.
149
+ last_hidden_state (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*):
150
+ Sequence of hidden-states at the output of the last layer of the decoder of the model.
151
+ decoder_hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
152
+ Tuple of `torch.FloatTensor` (one for the output of the embeddings + one for the output of each layer) of
153
+ shape `(batch_size, sequence_length, hidden_size)`. Hidden-states of the decoder at the output of each
154
+ layer plus the initial embedding outputs.
155
+ decoder_attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
156
+ Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
157
+ sequence_length)`. Attentions weights of the decoder, after the attention softmax, used to compute the
158
+ weighted average in the self-attention heads.
159
+ cross_attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
160
+ Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
161
+ sequence_length)`. Attentions weights of the decoder's cross-attention layer, after the attention softmax,
162
+ used to compute the weighted average in the cross-attention heads.
163
+ encoder_last_hidden_state (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*):
164
+ Sequence of hidden-states at the output of the last layer of the encoder of the model.
165
+ encoder_hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
166
+ Tuple of `torch.FloatTensor` (one for the output of the embeddings + one for the output of each layer) of
167
+ shape `(batch_size, sequence_length, hidden_size)`. Hidden-states of the encoder at the output of each
168
+ layer plus the initial embedding outputs.
169
+ encoder_attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
170
+ Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
171
+ sequence_length)`. Attentions weights of the encoder, after the attention softmax, used to compute the
172
+ weighted average in the self-attention heads.
173
+ """
174
+
175
+ loss: Optional[torch.FloatTensor] = None
176
+ loss_dict: Optional[Dict] = None
177
+ logits: torch.FloatTensor = None
178
+ pred_boxes: torch.FloatTensor = None
179
+ auxiliary_outputs: Optional[List[Dict]] = None
180
+ last_hidden_state: Optional[torch.FloatTensor] = None
181
+ decoder_hidden_states: Optional[Tuple[torch.FloatTensor]] = None
182
+ decoder_attentions: Optional[Tuple[torch.FloatTensor]] = None
183
+ cross_attentions: Optional[Tuple[torch.FloatTensor]] = None
184
+ encoder_last_hidden_state: Optional[torch.FloatTensor] = None
185
+ encoder_hidden_states: Optional[Tuple[torch.FloatTensor]] = None
186
+ encoder_attentions: Optional[Tuple[torch.FloatTensor]] = None
187
+
188
+
189
+ # Copied from transformers.models.detr.modeling_detr.DetrFrozenBatchNorm2d with Detr->DabDetr
190
+ class DabDetrFrozenBatchNorm2d(nn.Module):
191
+ """
192
+ BatchNorm2d where the batch statistics and the affine parameters are fixed.
193
+
194
+ Copy-paste from torchvision.misc.ops with added eps before rqsrt, without which any other models than
195
+ torchvision.models.resnet[18,34,50,101] produce nans.
196
+ """
197
+
198
+ def __init__(self, n):
199
+ super().__init__()
200
+ self.register_buffer("weight", torch.ones(n))
201
+ self.register_buffer("bias", torch.zeros(n))
202
+ self.register_buffer("running_mean", torch.zeros(n))
203
+ self.register_buffer("running_var", torch.ones(n))
204
+
205
+ def _load_from_state_dict(
206
+ self, state_dict, prefix, local_metadata, strict, missing_keys, unexpected_keys, error_msgs
207
+ ):
208
+ num_batches_tracked_key = prefix + "num_batches_tracked"
209
+ if num_batches_tracked_key in state_dict:
210
+ del state_dict[num_batches_tracked_key]
211
+
212
+ super()._load_from_state_dict(
213
+ state_dict, prefix, local_metadata, strict, missing_keys, unexpected_keys, error_msgs
214
+ )
215
+
216
+ def forward(self, x):
217
+ # move reshapes to the beginning
218
+ # to make it user-friendly
219
+ weight = self.weight.reshape(1, -1, 1, 1)
220
+ bias = self.bias.reshape(1, -1, 1, 1)
221
+ running_var = self.running_var.reshape(1, -1, 1, 1)
222
+ running_mean = self.running_mean.reshape(1, -1, 1, 1)
223
+ epsilon = 1e-5
224
+ scale = weight * (running_var + epsilon).rsqrt()
225
+ bias = bias - running_mean * scale
226
+ return x * scale + bias
227
+
228
+
229
+ # Copied from transformers.models.detr.modeling_detr.replace_batch_norm with Detr->DabDetr
230
+ def replace_batch_norm(model):
231
+ r"""
232
+ Recursively replace all `torch.nn.BatchNorm2d` with `DabDetrFrozenBatchNorm2d`.
233
+
234
+ Args:
235
+ model (torch.nn.Module):
236
+ input model
237
+ """
238
+ for name, module in model.named_children():
239
+ if isinstance(module, nn.BatchNorm2d):
240
+ new_module = DabDetrFrozenBatchNorm2d(module.num_features)
241
+
242
+ if not module.weight.device == torch.device("meta"):
243
+ new_module.weight.data.copy_(module.weight)
244
+ new_module.bias.data.copy_(module.bias)
245
+ new_module.running_mean.data.copy_(module.running_mean)
246
+ new_module.running_var.data.copy_(module.running_var)
247
+
248
+ model._modules[name] = new_module
249
+
250
+ if len(list(module.children())) > 0:
251
+ replace_batch_norm(module)
252
+
253
+
254
+ # Modified from transformers.models.detr.modeling_detr.DetrConvEncoder with Detr->DabDetr
255
+ class DabDetrConvEncoder(nn.Module):
256
+ """
257
+ Convolutional backbone, using either the AutoBackbone API or one from the timm library.
258
+
259
+ nn.BatchNorm2d layers are replaced by DabDetrFrozenBatchNorm2d as defined above.
260
+
261
+ """
262
+
263
+ def __init__(self, config: DabDetrConfig):
264
+ super().__init__()
265
+
266
+ self.config = config
267
+ backbone = load_backbone(config)
268
+
269
+ # replace batch norm by frozen batch norm
270
+ with torch.no_grad():
271
+ replace_batch_norm(backbone)
272
+ self.model = backbone
273
+ self.intermediate_channel_sizes = self.model.channels
274
+
275
+ def forward(self, pixel_values: torch.Tensor, pixel_mask: torch.Tensor):
276
+ # send pixel_values through the model to get list of feature maps
277
+ features = self.model(pixel_values).feature_maps
278
+
279
+ out = []
280
+ for feature_map in features:
281
+ # downsample pixel_mask to match shape of corresponding feature_map
282
+ mask = nn.functional.interpolate(pixel_mask[None].float(), size=feature_map.shape[-2:]).to(torch.bool)[0]
283
+ out.append((feature_map, mask))
284
+ return out
285
+
286
+
287
+ # Copied from transformers.models.detr.modeling_detr.DetrConvModel with Detr->DabDetr
288
+ class DabDetrConvModel(nn.Module):
289
+ """
290
+ This module adds 2D position embeddings to all intermediate feature maps of the convolutional encoder.
291
+ """
292
+
293
+ def __init__(self, conv_encoder, position_embedding):
294
+ super().__init__()
295
+ self.conv_encoder = conv_encoder
296
+ self.position_embedding = position_embedding
297
+
298
+ def forward(self, pixel_values, pixel_mask):
299
+ # send pixel_values and pixel_mask through backbone to get list of (feature_map, pixel_mask) tuples
300
+ out = self.conv_encoder(pixel_values, pixel_mask)
301
+ pos = []
302
+ for feature_map, mask in out:
303
+ # position encoding
304
+ pos.append(self.position_embedding(feature_map, mask).to(feature_map.dtype))
305
+
306
+ return out, pos
307
+
308
+
309
+ # Modified from transformers.models.conditional_detr.modeling_conditional_detr.ConditionalDetrSinePositionEmbedding with ConditionalDetr->DabDetr
310
+ class DabDetrSinePositionEmbedding(nn.Module):
311
+ """
312
+ This is a more standard version of the position embedding, very similar to the one used by the Attention is all you
313
+ need paper, generalized to work on images.
314
+ """
315
+
316
+ def __init__(self, config: DabDetrConfig):
317
+ super().__init__()
318
+ self.config = config
319
+ self.embedding_dim = config.hidden_size / 2
320
+ self.temperature_height = config.temperature_height
321
+ self.temperature_width = config.temperature_width
322
+ scale = config.sine_position_embedding_scale
323
+ if scale is None:
324
+ scale = 2 * math.pi
325
+ self.scale = scale
326
+
327
+ def forward(self, pixel_values, pixel_mask):
328
+ if pixel_mask is None:
329
+ raise ValueError("No pixel mask provided")
330
+ y_embed = pixel_mask.cumsum(1, dtype=torch.float32)
331
+ x_embed = pixel_mask.cumsum(2, dtype=torch.float32)
332
+ y_embed = y_embed / (y_embed[:, -1:, :] + 1e-6) * self.scale
333
+ x_embed = x_embed / (x_embed[:, :, -1:] + 1e-6) * self.scale
334
+
335
+ # We use float32 to ensure reproducibility of the original implementation
336
+ dim_tx = torch.arange(self.embedding_dim, dtype=torch.float32, device=pixel_values.device)
337
+ # Modifying dim_tx in place to avoid extra memory allocation -> dim_tx = self.temperature_width ** (2 * (dim_tx // 2) / self.embedding_dim)
338
+ dim_tx //= 2
339
+ dim_tx.mul_(2 / self.embedding_dim)
340
+ dim_tx.copy_(self.temperature_width**dim_tx)
341
+ pos_x = x_embed[:, :, :, None] / dim_tx
342
+
343
+ # We use float32 to ensure reproducibility of the original implementation
344
+ dim_ty = torch.arange(self.embedding_dim, dtype=torch.float32, device=pixel_values.device)
345
+ # Modifying dim_ty in place to avoid extra memory allocation -> dim_ty = self.temperature_height ** (2 * (dim_ty // 2) / self.embedding_dim)
346
+ dim_ty //= 2
347
+ dim_ty.mul_(2 / self.embedding_dim)
348
+ dim_ty.copy_(self.temperature_height**dim_ty)
349
+ pos_y = y_embed[:, :, :, None] / dim_ty
350
+
351
+ pos_x = torch.stack((pos_x[:, :, :, 0::2].sin(), pos_x[:, :, :, 1::2].cos()), dim=4).flatten(3)
352
+ pos_y = torch.stack((pos_y[:, :, :, 0::2].sin(), pos_y[:, :, :, 1::2].cos()), dim=4).flatten(3)
353
+ pos = torch.cat((pos_y, pos_x), dim=3).permute(0, 3, 1, 2)
354
+ return pos
355
+
356
+
357
+ # function to generate sine positional embedding for 4d coordinates
358
+ def gen_sine_position_embeddings(pos_tensor, hidden_size=256):
359
+ """
360
+ This function computes position embeddings using sine and cosine functions from the input positional tensor,
361
+ which has a shape of (batch_size, num_queries, 4).
362
+ The last dimension of `pos_tensor` represents the following coordinates:
363
+ - 0: x-coord
364
+ - 1: y-coord
365
+ - 2: width
366
+ - 3: height
367
+
368
+ The output shape is (batch_size, num_queries, 512), where final dim (hidden_size*2 = 512) is the total embedding dimension
369
+ achieved by concatenating the sine and cosine values for each coordinate.
370
+ """
371
+ scale = 2 * math.pi
372
+ dim = hidden_size // 2
373
+ dim_t = torch.arange(dim, dtype=torch.float32, device=pos_tensor.device)
374
+ dim_t = 10000 ** (2 * torch.div(dim_t, 2, rounding_mode="floor") / dim)
375
+ x_embed = pos_tensor[:, :, 0] * scale
376
+ y_embed = pos_tensor[:, :, 1] * scale
377
+ pos_x = x_embed[:, :, None] / dim_t
378
+ pos_y = y_embed[:, :, None] / dim_t
379
+ pos_x = torch.stack((pos_x[:, :, 0::2].sin(), pos_x[:, :, 1::2].cos()), dim=3).flatten(2)
380
+ pos_y = torch.stack((pos_y[:, :, 0::2].sin(), pos_y[:, :, 1::2].cos()), dim=3).flatten(2)
381
+ if pos_tensor.size(-1) == 4:
382
+ w_embed = pos_tensor[:, :, 2] * scale
383
+ pos_w = w_embed[:, :, None] / dim_t
384
+ pos_w = torch.stack((pos_w[:, :, 0::2].sin(), pos_w[:, :, 1::2].cos()), dim=3).flatten(2)
385
+
386
+ h_embed = pos_tensor[:, :, 3] * scale
387
+ pos_h = h_embed[:, :, None] / dim_t
388
+ pos_h = torch.stack((pos_h[:, :, 0::2].sin(), pos_h[:, :, 1::2].cos()), dim=3).flatten(2)
389
+
390
+ pos = torch.cat((pos_y, pos_x, pos_w, pos_h), dim=2)
391
+ else:
392
+ raise ValueError("Unknown pos_tensor shape(-1):{}".format(pos_tensor.size(-1)))
393
+ return pos
394
+
395
+
396
+ def inverse_sigmoid(x, eps=1e-5):
397
+ x = x.clamp(min=0, max=1)
398
+ x1 = x.clamp(min=eps)
399
+ x2 = (1 - x).clamp(min=eps)
400
+ return torch.log(x1 / x2)
401
+
402
+
403
+ # Modified from transformers.models.detr.modeling_detr.DetrAttention
404
+ class DetrAttention(nn.Module):
405
+ """
406
+ Multi-headed attention from 'Attention Is All You Need' paper.
407
+
408
+ Here, we add position embeddings to the queries and keys (as explained in the DETR paper).
409
+ """
410
+
411
+ def __init__(
412
+ self,
413
+ config: DabDetrConfig,
414
+ bias: bool = True,
415
+ ):
416
+ super().__init__()
417
+ self.config = config
418
+ self.hidden_size = config.hidden_size
419
+ self.num_heads = config.encoder_attention_heads
420
+ self.attention_dropout = config.attention_dropout
421
+ self.head_dim = self.hidden_size // self.num_heads
422
+ if self.head_dim * self.num_heads != self.hidden_size:
423
+ raise ValueError(
424
+ f"hidden_size must be divisible by num_heads (got `hidden_size`: {self.hidden_size} and `num_heads`:"
425
+ f" {self.num_heads})."
426
+ )
427
+ self.scaling = self.head_dim**-0.5
428
+ self.k_proj = nn.Linear(self.hidden_size, self.hidden_size, bias=bias)
429
+ self.v_proj = nn.Linear(self.hidden_size, self.hidden_size, bias=bias)
430
+ self.q_proj = nn.Linear(self.hidden_size, self.hidden_size, bias=bias)
431
+ self.out_proj = nn.Linear(self.hidden_size, self.hidden_size, bias=bias)
432
+
433
+ def forward(
434
+ self,
435
+ hidden_states: torch.Tensor,
436
+ attention_mask: Optional[torch.Tensor] = None,
437
+ object_queries: Optional[torch.Tensor] = None,
438
+ key_value_states: Optional[torch.Tensor] = None,
439
+ output_attentions: bool = False,
440
+ ) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]:
441
+ """Input shape: Batch x Time x Channel"""
442
+ batch_size, q_len, embed_dim = hidden_states.size()
443
+ # add position embeddings to the hidden states before projecting to queries and keys
444
+ if object_queries is not None:
445
+ hidden_states_original = hidden_states
446
+ hidden_states = hidden_states + object_queries
447
+
448
+ query_states = self.q_proj(hidden_states) * self.scaling
449
+ key_states = self.k_proj(hidden_states)
450
+ value_states = self.v_proj(hidden_states_original)
451
+
452
+ query_states = query_states.view(batch_size, q_len, self.num_heads, self.head_dim).transpose(1, 2)
453
+ key_states = key_states.view(batch_size, -1, self.num_heads, self.head_dim).transpose(1, 2)
454
+ value_states = value_states.view(batch_size, -1, self.num_heads, self.head_dim).transpose(1, 2)
455
+ attn_weights = torch.matmul(query_states, key_states.transpose(2, 3))
456
+
457
+ if attention_mask is not None:
458
+ attn_weights = attn_weights + attention_mask
459
+
460
+ attn_weights = nn.functional.softmax(attn_weights, dim=-1, dtype=torch.float32).to(query_states.dtype)
461
+ attn_weights = nn.functional.dropout(attn_weights, p=self.attention_dropout, training=self.training)
462
+ attn_output = torch.matmul(attn_weights, value_states)
463
+
464
+ if attn_output.size() != (batch_size, self.num_heads, q_len, self.head_dim):
465
+ raise ValueError(
466
+ f"`attn_output` should be of size {(batch_size, self.num_heads, q_len, self.head_dim)}, but is"
467
+ f" {attn_output.size()}"
468
+ )
469
+
470
+ attn_output = attn_output.transpose(1, 2).contiguous()
471
+
472
+ attn_output = attn_output.reshape(batch_size, q_len, embed_dim)
473
+ attn_output = self.out_proj(attn_output)
474
+
475
+ if not output_attentions:
476
+ attn_weights = None
477
+
478
+ return attn_output, attn_weights
479
+
480
+
481
+ # Modified from transformers.models.conditional_detr.modeling_conditional_detr.ConditionalDetrAttention with ConditionalDetr->DABDETR,Conditional DETR->DabDetr
482
+ class DabDetrAttention(nn.Module):
483
+ """
484
+ Cross-Attention used in DAB-DETR 'DAB-DETR for Fast Training Convergence' paper.
485
+
486
+ The key q_proj, k_proj, v_proj are defined outside the attention. This attention allows the dim of q, k to be
487
+ different to v.
488
+ """
489
+
490
+ def __init__(self, config: DabDetrConfig, bias: bool = True, is_cross: bool = False):
491
+ super().__init__()
492
+ self.config = config
493
+ self.embed_dim = config.hidden_size * 2 if is_cross else config.hidden_size
494
+ self.output_dim = config.hidden_size
495
+ self.attention_heads = config.decoder_attention_heads
496
+ self.attention_dropout = config.attention_dropout
497
+ self.attention_head_dim = self.embed_dim // self.attention_heads
498
+ if self.attention_head_dim * self.attention_heads != self.embed_dim:
499
+ raise ValueError(
500
+ f"embed_dim must be divisible by num_heads (got `embed_dim`: {self.embed_dim} and `attention_heads`:"
501
+ f" {self.attention_heads})."
502
+ )
503
+ # head dimension of values
504
+ self.values_head_dim = self.output_dim // self.attention_heads
505
+ if self.values_head_dim * self.attention_heads != self.output_dim:
506
+ raise ValueError(
507
+ f"output_dim must be divisible by attention_heads (got `output_dim`: {self.output_dim} and `attention_heads`: {self.attention_heads})."
508
+ )
509
+ self.scaling = self.attention_head_dim**-0.5
510
+ self.output_proj = nn.Linear(self.output_dim, self.output_dim, bias=bias)
511
+
512
+ def forward(
513
+ self,
514
+ hidden_states: torch.Tensor,
515
+ attention_mask: Optional[torch.Tensor] = None,
516
+ key_states: Optional[torch.Tensor] = None,
517
+ value_states: Optional[torch.Tensor] = None,
518
+ output_attentions: Optional[bool] = None,
519
+ ) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]:
520
+ """Input shape: Batch x Time x Channel"""
521
+
522
+ batch_size, q_len, _ = hidden_states.size()
523
+
524
+ # scaling query and refactor key-, value states
525
+ query_states = hidden_states * self.scaling
526
+ query_states = query_states.view(batch_size, -1, self.attention_heads, self.attention_head_dim).transpose(1, 2)
527
+ key_states = key_states.view(batch_size, -1, self.attention_heads, self.attention_head_dim).transpose(1, 2)
528
+ value_states = value_states.view(batch_size, -1, self.attention_heads, self.values_head_dim).transpose(1, 2)
529
+
530
+ attn_weights = torch.matmul(query_states, key_states.transpose(2, 3))
531
+
532
+ if attention_mask is not None:
533
+ attn_weights = attn_weights + attention_mask
534
+
535
+ attn_weights = nn.functional.softmax(attn_weights, dim=-1, dtype=torch.float32).to(query_states.dtype)
536
+ attn_probs = nn.functional.dropout(attn_weights, p=self.attention_dropout, training=self.training)
537
+ attn_output = torch.matmul(attn_probs, value_states)
538
+
539
+ if attn_output.size() != (batch_size, self.attention_heads, q_len, self.values_head_dim):
540
+ raise ValueError(
541
+ f"`attn_output` should be of size {(batch_size, self.attention_heads, q_len, self.values_head_dim)}, but is"
542
+ f" {attn_output.size()}"
543
+ )
544
+
545
+ attn_output = attn_output.transpose(1, 2).contiguous()
546
+
547
+ attn_output = attn_output.reshape(batch_size, q_len, self.output_dim)
548
+ attn_output = self.output_proj(attn_output)
549
+
550
+ if not output_attentions:
551
+ attn_weights = None
552
+
553
+ return attn_output, attn_weights
554
+
555
+
556
+ class DabDetrDecoderLayerSelfAttention(nn.Module):
557
+ def __init__(self, config: DabDetrConfig):
558
+ super().__init__()
559
+ self.dropout = config.dropout
560
+ self.self_attn_query_content_proj = nn.Linear(config.hidden_size, config.hidden_size)
561
+ self.self_attn_query_pos_proj = nn.Linear(config.hidden_size, config.hidden_size)
562
+ self.self_attn_key_content_proj = nn.Linear(config.hidden_size, config.hidden_size)
563
+ self.self_attn_key_pos_proj = nn.Linear(config.hidden_size, config.hidden_size)
564
+ self.self_attn_value_proj = nn.Linear(config.hidden_size, config.hidden_size)
565
+ self.self_attn = DabDetrAttention(config)
566
+ self.self_attn_layer_norm = nn.LayerNorm(config.hidden_size)
567
+
568
+ def forward(
569
+ self,
570
+ hidden_states: torch.Tensor,
571
+ query_position_embeddings: Optional[torch.Tensor] = None,
572
+ attention_mask: Optional[torch.Tensor] = None,
573
+ output_attentions: Optional[bool] = None,
574
+ ):
575
+ residual = hidden_states
576
+ query_content = self.self_attn_query_content_proj(hidden_states)
577
+ query_pos = self.self_attn_query_pos_proj(query_position_embeddings)
578
+ key_content = self.self_attn_key_content_proj(hidden_states)
579
+ key_pos = self.self_attn_key_pos_proj(query_position_embeddings)
580
+ value = self.self_attn_value_proj(hidden_states)
581
+
582
+ query = query_content + query_pos
583
+ key = key_content + key_pos
584
+
585
+ hidden_states, attn_weights = self.self_attn(
586
+ hidden_states=query,
587
+ attention_mask=attention_mask,
588
+ key_states=key,
589
+ value_states=value,
590
+ output_attentions=True,
591
+ )
592
+
593
+ hidden_states = nn.functional.dropout(hidden_states, p=self.dropout, training=self.training)
594
+ hidden_states = residual + hidden_states
595
+ hidden_states = self.self_attn_layer_norm(hidden_states)
596
+
597
+ return hidden_states, attn_weights
598
+
599
+
600
+ class DabDetrDecoderLayerCrossAttention(nn.Module):
601
+ def __init__(self, config: DabDetrConfig, is_first: bool = False):
602
+ super().__init__()
603
+ hidden_size = config.hidden_size
604
+ self.cross_attn_query_content_proj = nn.Linear(hidden_size, hidden_size)
605
+ self.cross_attn_query_pos_proj = nn.Linear(hidden_size, hidden_size)
606
+ self.cross_attn_key_content_proj = nn.Linear(hidden_size, hidden_size)
607
+ self.cross_attn_key_pos_proj = nn.Linear(hidden_size, hidden_size)
608
+ self.cross_attn_value_proj = nn.Linear(hidden_size, hidden_size)
609
+ self.cross_attn_query_pos_sine_proj = nn.Linear(hidden_size, hidden_size)
610
+ self.decoder_attention_heads = config.decoder_attention_heads
611
+ self.cross_attn_layer_norm = nn.LayerNorm(hidden_size)
612
+ self.cross_attn = DabDetrAttention(config, is_cross=True)
613
+
614
+ self.keep_query_pos = config.keep_query_pos
615
+
616
+ if not self.keep_query_pos and not is_first:
617
+ self.cross_attn_query_pos_proj = None
618
+
619
+ self.is_first = is_first
620
+ self.dropout = config.dropout
621
+
622
+ def forward(
623
+ self,
624
+ hidden_states: torch.Tensor,
625
+ encoder_hidden_states: Optional[torch.Tensor] = None,
626
+ query_position_embeddings: Optional[torch.Tensor] = None,
627
+ object_queries: Optional[torch.Tensor] = None,
628
+ encoder_attention_mask: Optional[torch.Tensor] = None,
629
+ query_sine_embed: Optional[torch.Tensor] = None,
630
+ output_attentions: Optional[bool] = None,
631
+ ):
632
+ query_content = self.cross_attn_query_content_proj(hidden_states)
633
+ key_content = self.cross_attn_key_content_proj(encoder_hidden_states)
634
+ value = self.cross_attn_value_proj(encoder_hidden_states)
635
+
636
+ batch_size, num_queries, n_model = query_content.shape
637
+ _, height_width, _ = key_content.shape
638
+
639
+ key_pos = self.cross_attn_key_pos_proj(object_queries)
640
+
641
+ # For the first decoder layer, we add the positional embedding predicted from
642
+ # the object query (the positional embedding) into the original query (key) in DETR.
643
+ if self.is_first or self.keep_query_pos:
644
+ query_pos = self.cross_attn_query_pos_proj(query_position_embeddings)
645
+ query = query_content + query_pos
646
+ key = key_content + key_pos
647
+ else:
648
+ query = query_content
649
+ key = key_content
650
+
651
+ query = query.view(
652
+ batch_size, num_queries, self.decoder_attention_heads, n_model // self.decoder_attention_heads
653
+ )
654
+ query_sine_embed = self.cross_attn_query_pos_sine_proj(query_sine_embed)
655
+ query_sine_embed = query_sine_embed.view(
656
+ batch_size, num_queries, self.decoder_attention_heads, n_model // self.decoder_attention_heads
657
+ )
658
+ query = torch.cat([query, query_sine_embed], dim=3).view(batch_size, num_queries, n_model * 2)
659
+ key = key.view(batch_size, height_width, self.decoder_attention_heads, n_model // self.decoder_attention_heads)
660
+ key_pos = key_pos.view(
661
+ batch_size, height_width, self.decoder_attention_heads, n_model // self.decoder_attention_heads
662
+ )
663
+ key = torch.cat([key, key_pos], dim=3).view(batch_size, height_width, n_model * 2)
664
+
665
+ # Cross-Attention Block
666
+ cross_attn_weights = None
667
+ if encoder_hidden_states is not None:
668
+ residual = hidden_states
669
+
670
+ hidden_states, cross_attn_weights = self.cross_attn(
671
+ hidden_states=query,
672
+ attention_mask=encoder_attention_mask,
673
+ key_states=key,
674
+ value_states=value,
675
+ output_attentions=output_attentions,
676
+ )
677
+
678
+ hidden_states = nn.functional.dropout(hidden_states, p=self.dropout, training=self.training)
679
+ hidden_states = residual + hidden_states
680
+ hidden_states = self.cross_attn_layer_norm(hidden_states)
681
+
682
+ return hidden_states, cross_attn_weights
683
+
684
+
685
+ class DabDetrDecoderLayerFFN(nn.Module):
686
+ def __init__(self, config: DabDetrConfig):
687
+ super().__init__()
688
+ hidden_size = config.hidden_size
689
+ self.final_layer_norm = nn.LayerNorm(hidden_size)
690
+ self.fc1 = nn.Linear(hidden_size, config.decoder_ffn_dim)
691
+ self.fc2 = nn.Linear(config.decoder_ffn_dim, hidden_size)
692
+ self.activation_fn = ACT2FN[config.activation_function]
693
+ self.dropout = config.dropout
694
+ self.activation_dropout = config.activation_dropout
695
+ self.keep_query_pos = config.keep_query_pos
696
+
697
+ def forward(self, hidden_states: torch.Tensor):
698
+ residual = hidden_states
699
+ hidden_states = self.activation_fn(self.fc1(hidden_states))
700
+ hidden_states = nn.functional.dropout(hidden_states, p=self.activation_dropout, training=self.training)
701
+ hidden_states = self.fc2(hidden_states)
702
+ hidden_states = nn.functional.dropout(hidden_states, p=self.dropout, training=self.training)
703
+ hidden_states = residual + hidden_states
704
+ hidden_states = self.final_layer_norm(hidden_states)
705
+
706
+ return hidden_states
707
+
708
+
709
+ # Modified from transformers.models.detr.modeling_detr.DetrEncoderLayer with DetrEncoderLayer->DabDetrEncoderLayer,DetrConfig->DabDetrConfig
710
+ class DabDetrEncoderLayer(nn.Module):
711
+ def __init__(self, config: DabDetrConfig):
712
+ super().__init__()
713
+ self.hidden_size = config.hidden_size
714
+ self.self_attn = DetrAttention(config)
715
+ self.self_attn_layer_norm = nn.LayerNorm(self.hidden_size)
716
+ self.dropout = config.dropout
717
+ self.activation_fn = ACT2FN[config.activation_function]
718
+ self.fc1 = nn.Linear(self.hidden_size, config.encoder_ffn_dim)
719
+ self.fc2 = nn.Linear(config.encoder_ffn_dim, self.hidden_size)
720
+ self.final_layer_norm = nn.LayerNorm(self.hidden_size)
721
+
722
+ def forward(
723
+ self,
724
+ hidden_states: torch.Tensor,
725
+ attention_mask: torch.Tensor,
726
+ object_queries: torch.Tensor,
727
+ output_attentions: Optional[bool] = None,
728
+ ):
729
+ """
730
+ Args:
731
+ hidden_states (`torch.FloatTensor`): input to the layer of shape `(seq_len, batch, embed_dim)`
732
+ attention_mask (`torch.FloatTensor`): attention mask of size
733
+ `(batch, source_len)` where padding elements are indicated by very large negative
734
+ values.
735
+ object_queries (`torch.FloatTensor`, *optional*):
736
+ Object queries (also called content embeddings), to be added to the hidden states.
737
+ output_attentions (`bool`, *optional*):
738
+ Whether or not to return the attentions tensors of all attention layers. See `attentions` under
739
+ returned tensors for more detail.
740
+ """
741
+ residual = hidden_states
742
+ hidden_states, attn_weights = self.self_attn(
743
+ hidden_states=hidden_states,
744
+ attention_mask=attention_mask,
745
+ object_queries=object_queries,
746
+ output_attentions=output_attentions,
747
+ )
748
+
749
+ hidden_states = nn.functional.dropout(hidden_states, p=self.dropout, training=self.training)
750
+ hidden_states = residual + hidden_states
751
+ hidden_states = self.self_attn_layer_norm(hidden_states)
752
+
753
+ residual = hidden_states
754
+ hidden_states = self.activation_fn(self.fc1(hidden_states))
755
+ hidden_states = nn.functional.dropout(hidden_states, p=self.dropout, training=self.training)
756
+
757
+ hidden_states = self.fc2(hidden_states)
758
+ hidden_states = nn.functional.dropout(hidden_states, p=self.dropout, training=self.training)
759
+
760
+ hidden_states = residual + hidden_states
761
+ hidden_states = self.final_layer_norm(hidden_states)
762
+
763
+ outputs = (hidden_states,)
764
+
765
+ if output_attentions:
766
+ outputs += (attn_weights,)
767
+
768
+ return outputs
769
+
770
+
771
+ # Modified from transformers.models.conditional_detr.modeling_conditional_detr.ConditionalDetrDecoderLayer with ConditionalDetr->DabDetr
772
+ class DabDetrDecoderLayer(nn.Module):
773
+ def __init__(self, config: DabDetrConfig, is_first: bool = False):
774
+ super().__init__()
775
+ self.self_attn = DabDetrDecoderLayerSelfAttention(config)
776
+ self.cross_attn = DabDetrDecoderLayerCrossAttention(config, is_first)
777
+ self.mlp = DabDetrDecoderLayerFFN(config)
778
+
779
+ def forward(
780
+ self,
781
+ hidden_states: torch.Tensor,
782
+ attention_mask: Optional[torch.Tensor] = None,
783
+ object_queries: Optional[torch.Tensor] = None,
784
+ query_position_embeddings: Optional[torch.Tensor] = None,
785
+ query_sine_embed: Optional[torch.Tensor] = None,
786
+ encoder_hidden_states: Optional[torch.Tensor] = None,
787
+ encoder_attention_mask: Optional[torch.Tensor] = None,
788
+ output_attentions: Optional[bool] = None,
789
+ ):
790
+ """
791
+ Args:
792
+ hidden_states (`torch.FloatTensor`): input to the layer of shape `(seq_len, batch, embed_dim)`
793
+ attention_mask (`torch.FloatTensor`): attention mask of size
794
+ `(batch, 1, target_len, source_len)` where padding elements are indicated by very large negative
795
+ values.
796
+ object_queries (`torch.FloatTensor`, *optional*):
797
+ object_queries that are added to the queries and keys
798
+ in the cross-attention layer.
799
+ query_position_embeddings (`torch.FloatTensor`, *optional*):
800
+ object_queries that are added to the queries and keys
801
+ in the self-attention layer.
802
+ encoder_hidden_states (`torch.FloatTensor`):
803
+ cross attention input to the layer of shape `(seq_len, batch, embed_dim)`
804
+ encoder_attention_mask (`torch.FloatTensor`): encoder attention mask of size
805
+ `(batch, 1, target_len, source_len)` where padding elements are indicated by very large negative
806
+ values.
807
+ output_attentions (`bool`, *optional*):
808
+ Whether or not to return the attentions tensors of all attention layers. See `attentions` under
809
+ returned tensors for more detail.
810
+
811
+ """
812
+ hidden_states, self_attn_weights = self.self_attn(
813
+ hidden_states=hidden_states,
814
+ query_position_embeddings=query_position_embeddings,
815
+ attention_mask=attention_mask,
816
+ output_attentions=output_attentions,
817
+ )
818
+
819
+ hidden_states, cross_attn_weights = self.cross_attn(
820
+ hidden_states=hidden_states,
821
+ encoder_hidden_states=encoder_hidden_states,
822
+ query_position_embeddings=query_position_embeddings,
823
+ object_queries=object_queries,
824
+ encoder_attention_mask=encoder_attention_mask,
825
+ query_sine_embed=query_sine_embed,
826
+ output_attentions=output_attentions,
827
+ )
828
+
829
+ hidden_states = self.mlp(hidden_states=hidden_states)
830
+
831
+ outputs = (hidden_states,)
832
+
833
+ if output_attentions:
834
+ outputs += (self_attn_weights, cross_attn_weights)
835
+
836
+ return outputs
837
+
838
+
839
+ # Modified from transformers.models.detr.modeling_detr.DetrMLPPredictionHead with DetrMLPPredictionHead->DabDetrMLP
840
+ class DabDetrMLP(nn.Module):
841
+ """
842
+ Very simple multi-layer perceptron (MLP, also called FFN), used to predict the normalized center coordinates,
843
+ height and width of a bounding box w.r.t. an image.
844
+
845
+ Copied from https://github.com/facebookresearch/detr/blob/master/models/detr.py
846
+
847
+ """
848
+
849
+ def __init__(self, input_dim, hidden_dim, output_dim, num_layers):
850
+ super().__init__()
851
+ self.num_layers = num_layers
852
+ h = [hidden_dim] * (num_layers - 1)
853
+ self.layers = nn.ModuleList(nn.Linear(n, k) for n, k in zip([input_dim] + h, h + [output_dim]))
854
+
855
+ def forward(self, input_tensor):
856
+ for i, layer in enumerate(self.layers):
857
+ input_tensor = nn.functional.relu(layer(input_tensor)) if i < self.num_layers - 1 else layer(input_tensor)
858
+ return input_tensor
859
+
860
+
861
+ # Modified from transformers.models.detr.modeling_detr.DetrPreTrainedModel with Detr->DabDetr
862
+ class DabDetrPreTrainedModel(PreTrainedModel):
863
+ config_class = DabDetrConfig
864
+ base_model_prefix = "model"
865
+ main_input_name = "pixel_values"
866
+ _no_split_modules = [r"DabDetrConvEncoder", r"DabDetrEncoderLayer", r"DabDetrDecoderLayer"]
867
+
868
+ def _init_weights(self, module):
869
+ std = self.config.init_std
870
+ xavier_std = self.config.init_xavier_std
871
+
872
+ if isinstance(module, DabDetrMHAttentionMap):
873
+ nn.init.zeros_(module.k_linear.bias)
874
+ nn.init.zeros_(module.q_linear.bias)
875
+ nn.init.xavier_uniform_(module.k_linear.weight, gain=xavier_std)
876
+ nn.init.xavier_uniform_(module.q_linear.weight, gain=xavier_std)
877
+ if isinstance(module, (nn.Linear, nn.Conv2d, nn.BatchNorm2d)):
878
+ # Slightly different from the TF version which uses truncated_normal for initialization
879
+ # cf https://github.com/pytorch/pytorch/pull/5617
880
+ module.weight.data.normal_(mean=0.0, std=std)
881
+ if module.bias is not None:
882
+ module.bias.data.zero_()
883
+ elif isinstance(module, nn.Embedding):
884
+ module.weight.data.normal_(mean=0.0, std=std)
885
+ if module.padding_idx is not None:
886
+ module.weight.data[module.padding_idx].zero_()
887
+ elif isinstance(module, DabDetrForObjectDetection):
888
+ nn.init.constant_(module.bbox_predictor.layers[-1].weight.data, 0)
889
+ nn.init.constant_(module.bbox_predictor.layers[-1].bias.data, 0)
890
+
891
+ # init prior_prob setting for focal loss
892
+ prior_prob = self.config.initializer_bias_prior_prob or 1 / (self.config.num_labels + 1)
893
+ bias_value = -math.log((1 - prior_prob) / prior_prob)
894
+ module.class_embed.bias.data.fill_(bias_value)
895
+
896
+
897
+ DAB_DETR_START_DOCSTRING = r"""
898
+ This model inherits from [`PreTrainedModel`]. Check the superclass documentation for the generic methods the
899
+ library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads
900
+ etc.)
901
+
902
+ This model is also a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass.
903
+ Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage
904
+ and behavior.
905
+
906
+ Parameters:
907
+ config ([`DabDetrConfig`]):
908
+ Model configuration class with all the parameters of the model. Initializing with a config file does not
909
+ load the weights associated with the model, only the configuration. Check out the
910
+ [`~PreTrainedModel.from_pretrained`] method to load the model weights.
911
+ """
912
+
913
+ DAB_DETR_INPUTS_DOCSTRING = r"""
914
+ Args:
915
+ pixel_values (`torch.FloatTensor` of shape `(batch_size, num_channels, height, width)`):
916
+ Pixel values. Padding will be ignored by default should you provide it.
917
+
918
+ Pixel values can be obtained using [`AutoImageProcessor`]. See [`DetrImageProcessor.__call__`]
919
+ for details.
920
+
921
+ pixel_mask (`torch.LongTensor` of shape `(batch_size, height, width)`, *optional*):
922
+ Mask to avoid performing attention on padding pixel values. Mask values selected in `[0, 1]`:
923
+
924
+ - 1 for pixels that are real (i.e. **not masked**),
925
+ - 0 for pixels that are padding (i.e. **masked**).
926
+
927
+ [What are attention masks?](../glossary#attention-mask)
928
+
929
+ decoder_attention_mask (`torch.FloatTensor` of shape `(batch_size, num_queries)`, *optional*):
930
+ Not used by default. Can be used to mask object queries.
931
+ encoder_outputs (`tuple(tuple(torch.FloatTensor)`, *optional*):
932
+ Tuple consists of (`last_hidden_state`, *optional*: `hidden_states`, *optional*: `attentions`)
933
+ `last_hidden_state` of shape `(batch_size, sequence_length, hidden_size)`, *optional*) is a sequence of
934
+ hidden-states at the output of the last layer of the encoder. Used in the cross-attention of the decoder.
935
+ inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*):
936
+ Optionally, instead of passing the flattened feature map (output of the backbone + projection layer), you
937
+ can choose to directly pass a flattened representation of an image.
938
+ decoder_inputs_embeds (`torch.FloatTensor` of shape `(batch_size, num_queries, hidden_size)`, *optional*):
939
+ Optionally, instead of initializing the queries with a tensor of zeros, you can choose to directly pass an
940
+ embedded representation.
941
+ output_attentions (`bool`, *optional*):
942
+ Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned
943
+ tensors for more detail.
944
+ output_hidden_states (`bool`, *optional*):
945
+ Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
946
+ more detail.
947
+ return_dict (`bool`, *optional*):
948
+ Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
949
+ """
950
+
951
+
952
+ # Modified from transformers.models.detr.modeling_detr.DetrEncoder with Detr->DabDetr,DETR->ConditionalDETR
953
+ class DabDetrEncoder(DabDetrPreTrainedModel):
954
+ """
955
+ Transformer encoder consisting of *config.encoder_layers* self attention layers. Each layer is a
956
+ [`DabDetrEncoderLayer`].
957
+
958
+ The encoder updates the flattened feature map through multiple self-attention layers.
959
+
960
+ Small tweak for DAB-DETR:
961
+
962
+ - object_queries are added to the forward pass.
963
+
964
+ Args:
965
+ config: DabDetrConfig
966
+ """
967
+
968
+ def __init__(self, config: DabDetrConfig):
969
+ super().__init__(config)
970
+
971
+ self.dropout = config.dropout
972
+ self.query_scale = DabDetrMLP(config.hidden_size, config.hidden_size, config.hidden_size, 2)
973
+ self.layers = nn.ModuleList([DabDetrEncoderLayer(config) for _ in range(config.encoder_layers)])
974
+ self.norm = nn.LayerNorm(config.hidden_size) if config.normalize_before else None
975
+ self.gradient_checkpointing = False
976
+
977
+ # Initialize weights and apply final processing
978
+ self.post_init()
979
+
980
+ def forward(
981
+ self,
982
+ inputs_embeds,
983
+ attention_mask,
984
+ object_queries,
985
+ output_attentions: Optional[bool] = None,
986
+ output_hidden_states: Optional[bool] = None,
987
+ return_dict: Optional[bool] = None,
988
+ ):
989
+ r"""
990
+ Args:
991
+ inputs_embeds (`torch.FloatTensor` of shape `(sequence_length, batch_size, hidden_size)`):
992
+ Flattened feature map (output of the backbone + projection layer) that is passed to the encoder.
993
+
994
+ attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*):
995
+ Mask to avoid performing attention on padding pixel features. Mask values selected in `[0, 1]`:
996
+
997
+ - 1 for pixel features that are real (i.e. **not masked**),
998
+ - 0 for pixel features that are padding (i.e. **masked**).
999
+
1000
+ [What are attention masks?](../glossary#attention-mask)
1001
+
1002
+ object_queries (`torch.FloatTensor` of shape `(sequence_length, batch_size, hidden_size)`):
1003
+ Object queries that are added to the queries in each self-attention layer.
1004
+
1005
+ output_attentions (`bool`, *optional*):
1006
+ Whether or not to return the attentions tensors of all attention layers. See `attentions` under
1007
+ returned tensors for more detail.
1008
+ output_hidden_states (`bool`, *optional*):
1009
+ Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors
1010
+ for more detail.
1011
+ return_dict (`bool`, *optional*):
1012
+ Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
1013
+ """
1014
+ output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
1015
+ output_hidden_states = (
1016
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
1017
+ )
1018
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
1019
+
1020
+ hidden_states = inputs_embeds
1021
+
1022
+ # expand attention_mask
1023
+ if attention_mask is not None:
1024
+ # [batch_size, seq_len] -> [batch_size, 1, target_seq_len, source_seq_len]
1025
+ attention_mask = _prepare_4d_attention_mask(attention_mask, inputs_embeds.dtype)
1026
+
1027
+ encoder_states = () if output_hidden_states else None
1028
+ all_attentions = () if output_attentions else None
1029
+
1030
+ for encoder_layer in self.layers:
1031
+ if output_hidden_states:
1032
+ encoder_states = encoder_states + (hidden_states,)
1033
+ # pos scaler
1034
+ pos_scales = self.query_scale(hidden_states)
1035
+ # we add object_queries * pos_scaler as extra input to the encoder_layer
1036
+ scaled_object_queries = object_queries * pos_scales
1037
+
1038
+ if self.gradient_checkpointing and self.training:
1039
+ layer_outputs = self._gradient_checkpointing_func(
1040
+ encoder_layer.__call__,
1041
+ hidden_states,
1042
+ attention_mask,
1043
+ scaled_object_queries,
1044
+ output_attentions,
1045
+ )
1046
+ else:
1047
+ layer_outputs = encoder_layer(
1048
+ hidden_states,
1049
+ attention_mask=attention_mask,
1050
+ object_queries=scaled_object_queries,
1051
+ output_attentions=output_attentions,
1052
+ )
1053
+
1054
+ hidden_states = layer_outputs[0]
1055
+
1056
+ if output_attentions:
1057
+ all_attentions = all_attentions + (layer_outputs[1],)
1058
+
1059
+ if self.norm:
1060
+ hidden_states = self.norm(hidden_states)
1061
+
1062
+ if output_hidden_states:
1063
+ encoder_states = encoder_states + (hidden_states,)
1064
+
1065
+ if not return_dict:
1066
+ return tuple(v for v in [hidden_states, encoder_states, all_attentions] if v is not None)
1067
+ return BaseModelOutput(
1068
+ last_hidden_state=hidden_states, hidden_states=encoder_states, attentions=all_attentions
1069
+ )
1070
+
1071
+
1072
+ # Modified from transformers.models.conditional_detr.modeling_conditional_detr.ConditionalDetrDecoder with ConditionalDetr->DabDetr,Conditional DETR->DAB-DETR
1073
+ class DabDetrDecoder(DabDetrPreTrainedModel):
1074
+ """
1075
+ Transformer decoder consisting of *config.decoder_layers* layers. Each layer is a [`DabDetrDecoderLayer`].
1076
+
1077
+ The decoder updates the query embeddings through multiple self-attention and cross-attention layers.
1078
+
1079
+ Some small tweaks for DAB-DETR:
1080
+
1081
+ - object_queries and query_position_embeddings are added to the forward pass.
1082
+ - if self.config.auxiliary_loss is set to True, also returns a stack of activations from all decoding layers.
1083
+
1084
+ Args:
1085
+ config: DabDetrConfig
1086
+ """
1087
+
1088
+ def __init__(self, config: DabDetrConfig):
1089
+ super().__init__(config)
1090
+ self.config = config
1091
+ self.dropout = config.dropout
1092
+ self.num_layers = config.decoder_layers
1093
+ self.gradient_checkpointing = False
1094
+
1095
+ self.layers = nn.ModuleList(
1096
+ [DabDetrDecoderLayer(config, is_first=(layer_id == 0)) for layer_id in range(config.decoder_layers)]
1097
+ )
1098
+ # in DAB-DETR, the decoder uses layernorm after the last decoder layer output
1099
+ self.hidden_size = config.hidden_size
1100
+ self.layernorm = nn.LayerNorm(self.hidden_size)
1101
+
1102
+ # Default cond-elewise
1103
+ self.query_scale = DabDetrMLP(self.hidden_size, self.hidden_size, self.hidden_size, 2)
1104
+
1105
+ self.ref_point_head = DabDetrMLP(
1106
+ config.query_dim // 2 * self.hidden_size, self.hidden_size, self.hidden_size, 2
1107
+ )
1108
+
1109
+ self.bbox_embed = None
1110
+
1111
+ # Default decoder_modulate_hw_attn is True
1112
+ self.ref_anchor_head = DabDetrMLP(self.hidden_size, self.hidden_size, 2, 2)
1113
+
1114
+ # Initialize weights and apply final processing
1115
+ self.post_init()
1116
+
1117
+ def forward(
1118
+ self,
1119
+ inputs_embeds,
1120
+ encoder_hidden_states,
1121
+ memory_key_padding_mask,
1122
+ object_queries,
1123
+ query_position_embeddings,
1124
+ output_attentions: Optional[bool] = None,
1125
+ output_hidden_states: Optional[bool] = None,
1126
+ return_dict: Optional[bool] = None,
1127
+ ):
1128
+ r"""
1129
+ Args:
1130
+ inputs_embeds (`torch.FloatTensor` of shape `(sequence_length, batch_size, hidden_size)`):
1131
+ The query embeddings that are passed into the decoder.
1132
+ encoder_hidden_states (`torch.FloatTensor` of shape `(encoder_sequence_length, batch_size, hidden_size)`, *optional*):
1133
+ Sequence of hidden-states at the output of the last layer of the encoder. Used in the cross-attention
1134
+ of the decoder.
1135
+ memory_key_padding_mask (`torch.Tensor.bool` of shape `(batch_size, sequence_length)`):
1136
+ The memory_key_padding_mask indicates which positions in the memory (encoder outputs) should be ignored during the attention computation,
1137
+ ensuring padding tokens do not influence the attention mechanism.
1138
+ object_queries (`torch.FloatTensor` of shape `(sequence_length, batch_size, hidden_size)`, *optional*):
1139
+ Position embeddings that are added to the queries and keys in each cross-attention layer.
1140
+ query_position_embeddings (`torch.FloatTensor` of shape `(num_queries, batch_size, number_of_anchor_points)`):
1141
+ Position embeddings that are added to the queries and keys in each self-attention layer.
1142
+ output_attentions (`bool`, *optional*):
1143
+ Whether or not to return the attentions tensors of all attention layers. See `attentions` under
1144
+ returned tensors for more detail.
1145
+ output_hidden_states (`bool`, *optional*):
1146
+ Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors
1147
+ for more detail.
1148
+ return_dict (`bool`, *optional*):
1149
+ Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
1150
+ """
1151
+ output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
1152
+ output_hidden_states = (
1153
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
1154
+ )
1155
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
1156
+
1157
+ if inputs_embeds is not None:
1158
+ hidden_states = inputs_embeds
1159
+ input_shape = inputs_embeds.size()[:-1]
1160
+
1161
+ # decoder layers
1162
+ all_hidden_states = () if output_hidden_states else None
1163
+ all_self_attns = () if output_attentions else None
1164
+ all_cross_attentions = () if (output_attentions and encoder_hidden_states is not None) else None
1165
+
1166
+ intermediate = []
1167
+ reference_points = query_position_embeddings.sigmoid()
1168
+ ref_points = [reference_points]
1169
+
1170
+ # expand encoder attention mask
1171
+ if encoder_hidden_states is not None and memory_key_padding_mask is not None:
1172
+ # [batch_size, seq_len] -> [batch_size, 1, target_seq_len, source_seq_len]
1173
+ memory_key_padding_mask = _prepare_4d_attention_mask(
1174
+ memory_key_padding_mask, inputs_embeds.dtype, tgt_len=input_shape[-1]
1175
+ )
1176
+
1177
+ for layer_id, decoder_layer in enumerate(self.layers):
1178
+ if output_hidden_states:
1179
+ all_hidden_states += (hidden_states,)
1180
+
1181
+ obj_center = reference_points[..., : self.config.query_dim]
1182
+ query_sine_embed = gen_sine_position_embeddings(obj_center, self.hidden_size)
1183
+ query_pos = self.ref_point_head(query_sine_embed)
1184
+
1185
+ # For the first decoder layer, we do not apply transformation over p_s
1186
+ pos_transformation = 1 if layer_id == 0 else self.query_scale(hidden_states)
1187
+
1188
+ # apply transformation
1189
+ query_sine_embed = query_sine_embed[..., : self.hidden_size] * pos_transformation
1190
+
1191
+ # modulated Height Width attentions
1192
+ reference_anchor_size = self.ref_anchor_head(hidden_states).sigmoid() # nq, bs, 2
1193
+ query_sine_embed[..., self.hidden_size // 2 :] *= (
1194
+ reference_anchor_size[..., 0] / obj_center[..., 2]
1195
+ ).unsqueeze(-1)
1196
+ query_sine_embed[..., : self.hidden_size // 2] *= (
1197
+ reference_anchor_size[..., 1] / obj_center[..., 3]
1198
+ ).unsqueeze(-1)
1199
+
1200
+ if self.gradient_checkpointing and self.training:
1201
+ layer_outputs = self._gradient_checkpointing_func(
1202
+ decoder_layer.__call__,
1203
+ hidden_states,
1204
+ None,
1205
+ object_queries,
1206
+ query_pos,
1207
+ query_sine_embed,
1208
+ encoder_hidden_states,
1209
+ memory_key_padding_mask,
1210
+ output_attentions,
1211
+ )
1212
+ else:
1213
+ layer_outputs = decoder_layer(
1214
+ hidden_states,
1215
+ attention_mask=None,
1216
+ object_queries=object_queries,
1217
+ query_position_embeddings=query_pos,
1218
+ query_sine_embed=query_sine_embed,
1219
+ encoder_hidden_states=encoder_hidden_states,
1220
+ encoder_attention_mask=memory_key_padding_mask,
1221
+ output_attentions=output_attentions,
1222
+ )
1223
+
1224
+ # iter update
1225
+ hidden_states = layer_outputs[0]
1226
+
1227
+ if self.bbox_embed is not None:
1228
+ new_reference_points = self.bbox_embed(hidden_states)
1229
+
1230
+ new_reference_points[..., : self.config.query_dim] += inverse_sigmoid(reference_points)
1231
+ new_reference_points = new_reference_points[..., : self.config.query_dim].sigmoid()
1232
+ if layer_id != self.num_layers - 1:
1233
+ ref_points.append(new_reference_points)
1234
+ reference_points = new_reference_points.detach()
1235
+
1236
+ intermediate.append(self.layernorm(hidden_states))
1237
+
1238
+ if output_attentions:
1239
+ all_self_attns += (layer_outputs[1],)
1240
+
1241
+ if encoder_hidden_states is not None:
1242
+ all_cross_attentions += (layer_outputs[2],)
1243
+
1244
+ # Layer normalization on hidden states
1245
+ hidden_states = self.layernorm(hidden_states)
1246
+
1247
+ if output_hidden_states:
1248
+ all_hidden_states += (hidden_states,)
1249
+
1250
+ output_intermediate_hidden_states = torch.stack(intermediate)
1251
+ output_reference_points = torch.stack(ref_points)
1252
+
1253
+ if not return_dict:
1254
+ return tuple(
1255
+ v
1256
+ for v in [
1257
+ hidden_states,
1258
+ all_hidden_states,
1259
+ all_self_attns,
1260
+ all_cross_attentions,
1261
+ output_intermediate_hidden_states,
1262
+ output_reference_points,
1263
+ ]
1264
+ if v is not None
1265
+ )
1266
+ return DabDetrDecoderOutput(
1267
+ last_hidden_state=hidden_states,
1268
+ hidden_states=all_hidden_states,
1269
+ attentions=all_self_attns,
1270
+ cross_attentions=all_cross_attentions,
1271
+ intermediate_hidden_states=output_intermediate_hidden_states,
1272
+ reference_points=output_reference_points,
1273
+ )
1274
+
1275
+
1276
+ @add_start_docstrings(
1277
+ """
1278
+ The bare DAB-DETR Model (consisting of a backbone and encoder-decoder Transformer) outputting raw
1279
+ hidden-states, intermediate hidden states, reference points, output coordinates without any specific head on top.
1280
+ """,
1281
+ DAB_DETR_START_DOCSTRING,
1282
+ )
1283
+ class DabDetrModel(DabDetrPreTrainedModel):
1284
+ def __init__(self, config: DabDetrConfig):
1285
+ super().__init__(config)
1286
+
1287
+ self.auxiliary_loss = config.auxiliary_loss
1288
+
1289
+ # Create backbone + positional encoding
1290
+ self.backbone = DabDetrConvEncoder(config)
1291
+ object_queries = DabDetrSinePositionEmbedding(config)
1292
+
1293
+ self.query_refpoint_embeddings = nn.Embedding(config.num_queries, config.query_dim)
1294
+ self.random_refpoints_xy = config.random_refpoints_xy
1295
+ if self.random_refpoints_xy:
1296
+ self.query_refpoint_embeddings.weight.data[:, :2].uniform_(0, 1)
1297
+ self.query_refpoint_embeddings.weight.data[:, :2] = inverse_sigmoid(
1298
+ self.query_refpoint_embeddings.weight.data[:, :2]
1299
+ )
1300
+ self.query_refpoint_embeddings.weight.data[:, :2].requires_grad = False
1301
+
1302
+ # Create projection layer
1303
+ self.input_projection = nn.Conv2d(
1304
+ self.backbone.intermediate_channel_sizes[-1], config.hidden_size, kernel_size=1
1305
+ )
1306
+ self.backbone = DabDetrConvModel(self.backbone, object_queries)
1307
+
1308
+ self.encoder = DabDetrEncoder(config)
1309
+ self.decoder = DabDetrDecoder(config)
1310
+
1311
+ # decoder related variables
1312
+ self.hidden_size = config.hidden_size
1313
+ self.num_queries = config.num_queries
1314
+
1315
+ self.num_patterns = config.num_patterns
1316
+ if not isinstance(self.num_patterns, int):
1317
+ logger.warning("num_patterns should be int but {}".format(type(self.num_patterns)))
1318
+ self.num_patterns = 0
1319
+ if self.num_patterns > 0:
1320
+ self.patterns = nn.Embedding(self.num_patterns, self.hidden_size)
1321
+
1322
+ self.aux_loss = config.auxiliary_loss
1323
+
1324
+ # Initialize weights and apply final processing
1325
+ self.post_init()
1326
+
1327
+ def get_encoder(self):
1328
+ return self.encoder
1329
+
1330
+ def get_decoder(self):
1331
+ return self.decoder
1332
+
1333
+ def freeze_backbone(self):
1334
+ for name, param in self.backbone.conv_encoder.model.named_parameters():
1335
+ param.requires_grad_(False)
1336
+
1337
+ def unfreeze_backbone(self):
1338
+ for name, param in self.backbone.conv_encoder.model.named_parameters():
1339
+ param.requires_grad_(True)
1340
+
1341
+ @add_start_docstrings_to_model_forward(DAB_DETR_INPUTS_DOCSTRING)
1342
+ @replace_return_docstrings(output_type=DabDetrModelOutput, config_class=_CONFIG_FOR_DOC)
1343
+ def forward(
1344
+ self,
1345
+ pixel_values: torch.FloatTensor,
1346
+ pixel_mask: Optional[torch.LongTensor] = None,
1347
+ decoder_attention_mask: Optional[torch.LongTensor] = None,
1348
+ encoder_outputs: Optional[torch.FloatTensor] = None,
1349
+ inputs_embeds: Optional[torch.FloatTensor] = None,
1350
+ decoder_inputs_embeds: Optional[torch.FloatTensor] = None,
1351
+ output_attentions: Optional[bool] = None,
1352
+ output_hidden_states: Optional[bool] = None,
1353
+ return_dict: Optional[bool] = None,
1354
+ ) -> Union[Tuple[torch.FloatTensor], DabDetrModelOutput]:
1355
+ r"""
1356
+ Returns:
1357
+
1358
+ Examples:
1359
+
1360
+ ```python
1361
+ >>> from transformers import AutoImageProcessor, AutoModel
1362
+ >>> from PIL import Image
1363
+ >>> import requests
1364
+
1365
+ >>> url = "http://images.cocodataset.org/val2017/000000039769.jpg"
1366
+ >>> image = Image.open(requests.get(url, stream=True).raw)
1367
+
1368
+ >>> image_processor = AutoImageProcessor.from_pretrained("IDEA-Research/dab_detr-base")
1369
+ >>> model = AutoModel.from_pretrained("IDEA-Research/dab_detr-base")
1370
+
1371
+ >>> # prepare image for the model
1372
+ >>> inputs = image_processor(images=image, return_tensors="pt")
1373
+
1374
+ >>> # forward pass
1375
+ >>> outputs = model(**inputs)
1376
+
1377
+ >>> # the last hidden states are the final query embeddings of the Transformer decoder
1378
+ >>> # these are of shape (batch_size, num_queries, hidden_size)
1379
+ >>> last_hidden_states = outputs.last_hidden_state
1380
+ >>> list(last_hidden_states.shape)
1381
+ [1, 300, 256]
1382
+ ```"""
1383
+ output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
1384
+ output_hidden_states = (
1385
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
1386
+ )
1387
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
1388
+
1389
+ batch_size, _, height, width = pixel_values.shape
1390
+ device = pixel_values.device
1391
+
1392
+ if pixel_mask is None:
1393
+ pixel_mask = torch.ones(((batch_size, height, width)), device=device)
1394
+
1395
+ # First, sent pixel_values + pixel_mask through Backbone to obtain the features
1396
+ # pixel_values should be of shape (batch_size, num_channels, height, width)
1397
+ # pixel_mask should be of shape (batch_size, height, width)
1398
+ features, object_queries_list = self.backbone(pixel_values, pixel_mask)
1399
+
1400
+ # get final feature map and downsampled mask
1401
+ feature_map, mask = features[-1]
1402
+
1403
+ if mask is None:
1404
+ raise ValueError("Backbone does not return downsampled pixel mask")
1405
+
1406
+ flattened_mask = mask.flatten(1)
1407
+
1408
+ # Second, apply 1x1 convolution to reduce the channel dimension to hidden_size (256 by default)
1409
+ projected_feature_map = self.input_projection(feature_map)
1410
+
1411
+ # Third, flatten the feature map + object_queries of shape NxCxHxW to HWxNxC, and permute it to NxHWxC
1412
+ # In other words, turn their shape into ( sequence_length, batch_size, hidden_size)
1413
+ flattened_features = projected_feature_map.flatten(2).permute(0, 2, 1)
1414
+ object_queries = object_queries_list[-1].flatten(2).permute(0, 2, 1)
1415
+ reference_position_embeddings = self.query_refpoint_embeddings.weight.unsqueeze(0).repeat(batch_size, 1, 1)
1416
+
1417
+ # Fourth, sent flattened_features + flattened_mask + object_queries through encoder
1418
+ # flattened_features is a Tensor of shape (heigth*width, batch_size, hidden_size)
1419
+ # flattened_mask is a Tensor of shape (batch_size, heigth*width)
1420
+ if encoder_outputs is None:
1421
+ encoder_outputs = self.encoder(
1422
+ inputs_embeds=flattened_features,
1423
+ attention_mask=flattened_mask,
1424
+ object_queries=object_queries,
1425
+ output_attentions=output_attentions,
1426
+ output_hidden_states=output_hidden_states,
1427
+ return_dict=return_dict,
1428
+ )
1429
+ # If the user passed a tuple for encoder_outputs, we wrap it in a BaseModelOutput when return_dict=True
1430
+ elif return_dict and not isinstance(encoder_outputs, BaseModelOutput):
1431
+ encoder_outputs = BaseModelOutput(
1432
+ last_hidden_state=encoder_outputs[0],
1433
+ hidden_states=encoder_outputs[1] if len(encoder_outputs) > 1 else None,
1434
+ attentions=encoder_outputs[2] if len(encoder_outputs) > 2 else None,
1435
+ )
1436
+
1437
+ # Fifth, sent query embeddings + object_queries through the decoder (which is conditioned on the encoder output)
1438
+ num_queries = reference_position_embeddings.shape[1]
1439
+ if self.num_patterns == 0:
1440
+ queries = torch.zeros(batch_size, num_queries, self.hidden_size, device=device)
1441
+ else:
1442
+ queries = (
1443
+ self.patterns.weight[:, None, None, :]
1444
+ .repeat(1, self.num_queries, batch_size, 1)
1445
+ .flatten(0, 1)
1446
+ .permute(1, 0, 2)
1447
+ ) # bs, n_q*n_pat, hidden_size
1448
+ reference_position_embeddings = reference_position_embeddings.repeat(
1449
+ 1, self.num_patterns, 1
1450
+ ) # bs, n_q*n_pat, hidden_size
1451
+
1452
+ # decoder outputs consists of (dec_features, dec_hidden, dec_attn)
1453
+ decoder_outputs = self.decoder(
1454
+ inputs_embeds=queries,
1455
+ query_position_embeddings=reference_position_embeddings,
1456
+ object_queries=object_queries,
1457
+ encoder_hidden_states=encoder_outputs[0],
1458
+ memory_key_padding_mask=flattened_mask,
1459
+ output_attentions=output_attentions,
1460
+ output_hidden_states=output_hidden_states,
1461
+ return_dict=return_dict,
1462
+ )
1463
+
1464
+ if not return_dict:
1465
+ # last_hidden_state
1466
+ output = (decoder_outputs[0],)
1467
+ reference_points = decoder_outputs[-1]
1468
+ intermediate_hidden_states = decoder_outputs[-2]
1469
+
1470
+ # it has to follow the order of DABDETRModelOutput that is based on ModelOutput
1471
+ # If we only use one of the variables then the indexing will change.
1472
+ # E.g: if we return everything then 'decoder_attentions' is decoder_outputs[2], if we only use output_attentions then its decoder_outputs[1]
1473
+ if output_hidden_states and output_attentions:
1474
+ output += (
1475
+ decoder_outputs[1],
1476
+ decoder_outputs[2],
1477
+ decoder_outputs[3],
1478
+ encoder_outputs[0],
1479
+ encoder_outputs[1],
1480
+ encoder_outputs[2],
1481
+ )
1482
+ elif output_hidden_states:
1483
+ # decoder_hidden_states, encoder_last_hidden_state, encoder_hidden_states
1484
+ output += (
1485
+ decoder_outputs[1],
1486
+ encoder_outputs[0],
1487
+ encoder_outputs[1],
1488
+ )
1489
+ elif output_attentions:
1490
+ # decoder_self_attention, decoder_cross_attention, encoder_attentions
1491
+ output += (
1492
+ decoder_outputs[1],
1493
+ decoder_outputs[2],
1494
+ encoder_outputs[1],
1495
+ )
1496
+
1497
+ output += (intermediate_hidden_states, reference_points)
1498
+
1499
+ return output
1500
+
1501
+ reference_points = decoder_outputs.reference_points
1502
+ intermediate_hidden_states = decoder_outputs.intermediate_hidden_states
1503
+
1504
+ return DabDetrModelOutput(
1505
+ last_hidden_state=decoder_outputs.last_hidden_state,
1506
+ decoder_hidden_states=decoder_outputs.hidden_states if output_hidden_states else None,
1507
+ decoder_attentions=decoder_outputs.attentions if output_attentions else None,
1508
+ cross_attentions=decoder_outputs.cross_attentions if output_attentions else None,
1509
+ encoder_last_hidden_state=encoder_outputs.last_hidden_state if output_hidden_states else None,
1510
+ encoder_hidden_states=encoder_outputs.hidden_states if output_hidden_states else None,
1511
+ encoder_attentions=encoder_outputs.attentions if output_attentions else None,
1512
+ intermediate_hidden_states=intermediate_hidden_states,
1513
+ reference_points=reference_points,
1514
+ )
1515
+
1516
+
1517
+ # Copied from transformers.models.detr.modeling_detr.DetrMHAttentionMap with Detr->DabDetr
1518
+ class DabDetrMHAttentionMap(nn.Module):
1519
+ """This is a 2D attention module, which only returns the attention softmax (no multiplication by value)"""
1520
+
1521
+ def __init__(self, query_dim, hidden_dim, num_heads, dropout=0.0, bias=True, std=None):
1522
+ super().__init__()
1523
+ self.num_heads = num_heads
1524
+ self.hidden_dim = hidden_dim
1525
+ self.dropout = nn.Dropout(dropout)
1526
+
1527
+ self.q_linear = nn.Linear(query_dim, hidden_dim, bias=bias)
1528
+ self.k_linear = nn.Linear(query_dim, hidden_dim, bias=bias)
1529
+
1530
+ self.normalize_fact = float(hidden_dim / self.num_heads) ** -0.5
1531
+
1532
+ def forward(self, q, k, mask: Optional[Tensor] = None):
1533
+ q = self.q_linear(q)
1534
+ k = nn.functional.conv2d(k, self.k_linear.weight.unsqueeze(-1).unsqueeze(-1), self.k_linear.bias)
1535
+ queries_per_head = q.view(q.shape[0], q.shape[1], self.num_heads, self.hidden_dim // self.num_heads)
1536
+ keys_per_head = k.view(k.shape[0], self.num_heads, self.hidden_dim // self.num_heads, k.shape[-2], k.shape[-1])
1537
+ weights = torch.einsum("bqnc,bnchw->bqnhw", queries_per_head * self.normalize_fact, keys_per_head)
1538
+
1539
+ if mask is not None:
1540
+ weights = weights.masked_fill(mask.unsqueeze(1).unsqueeze(1), torch.finfo(weights.dtype).min)
1541
+ weights = nn.functional.softmax(weights.flatten(2), dim=-1).view(weights.size())
1542
+ weights = self.dropout(weights)
1543
+ return weights
1544
+
1545
+
1546
+ @add_start_docstrings(
1547
+ """
1548
+ DAB_DETR Model (consisting of a backbone and encoder-decoder Transformer) with object detection heads on
1549
+ top, for tasks such as COCO detection.
1550
+ """,
1551
+ DAB_DETR_START_DOCSTRING,
1552
+ )
1553
+ class DabDetrForObjectDetection(DabDetrPreTrainedModel):
1554
+ # When using clones, all layers > 0 will be clones, but layer 0 *is* required
1555
+ _tied_weights_keys = [
1556
+ r"bbox_predictor\.layers\.\d+\.(weight|bias)",
1557
+ r"model\.decoder\.bbox_embed\.layers\.\d+\.(weight|bias)",
1558
+ ]
1559
+
1560
+ def __init__(self, config: DabDetrConfig):
1561
+ super().__init__(config)
1562
+
1563
+ self.config = config
1564
+ self.auxiliary_loss = config.auxiliary_loss
1565
+ self.query_dim = config.query_dim
1566
+ # DAB-DETR encoder-decoder model
1567
+ self.model = DabDetrModel(config)
1568
+
1569
+ _bbox_embed = DabDetrMLP(config.hidden_size, config.hidden_size, 4, 3)
1570
+ # Object detection heads
1571
+ self.class_embed = nn.Linear(config.hidden_size, config.num_labels)
1572
+
1573
+ # Default bbox_embed_diff_each_layer is False
1574
+ self.bbox_predictor = _bbox_embed
1575
+
1576
+ # Default iter_update is True
1577
+ self.model.decoder.bbox_embed = self.bbox_predictor
1578
+
1579
+ # Initialize weights and apply final processing
1580
+ self.post_init()
1581
+
1582
+ # taken from https://github.com/Atten4Vis/conditionalDETR/blob/master/models/dab_detr.py
1583
+ @torch.jit.unused
1584
+ def _set_aux_loss(self, outputs_class, outputs_coord):
1585
+ # this is a workaround to make torchscript happy, as torchscript
1586
+ # doesn't support dictionary with non-homogeneous values, such
1587
+ # as a dict having both a Tensor and a list.
1588
+ return [{"logits": a, "pred_boxes": b} for a, b in zip(outputs_class[:-1], outputs_coord[:-1])]
1589
+
1590
+ @add_start_docstrings_to_model_forward(DAB_DETR_INPUTS_DOCSTRING)
1591
+ @replace_return_docstrings(output_type=DabDetrObjectDetectionOutput, config_class=_CONFIG_FOR_DOC)
1592
+ def forward(
1593
+ self,
1594
+ pixel_values: torch.FloatTensor,
1595
+ pixel_mask: Optional[torch.LongTensor] = None,
1596
+ decoder_attention_mask: Optional[torch.LongTensor] = None,
1597
+ encoder_outputs: Optional[torch.FloatTensor] = None,
1598
+ inputs_embeds: Optional[torch.FloatTensor] = None,
1599
+ decoder_inputs_embeds: Optional[torch.FloatTensor] = None,
1600
+ labels: Optional[List[dict]] = None,
1601
+ output_attentions: Optional[bool] = None,
1602
+ output_hidden_states: Optional[bool] = None,
1603
+ return_dict: Optional[bool] = None,
1604
+ ) -> Union[Tuple[torch.FloatTensor], DabDetrObjectDetectionOutput]:
1605
+ r"""
1606
+ labels (`List[Dict]` of len `(batch_size,)`, *optional*):
1607
+ Labels for computing the bipartite matching loss. List of dicts, each dictionary containing at least the
1608
+ following 2 keys: 'class_labels' and 'boxes' (the class labels and bounding boxes of an image in the batch
1609
+ respectively). The class labels themselves should be a `torch.LongTensor` of len `(number of bounding boxes
1610
+ in the image,)` and the boxes a `torch.FloatTensor` of shape `(number of bounding boxes in the image, 4)`.
1611
+
1612
+ Returns:
1613
+
1614
+ Examples:
1615
+
1616
+ ```python
1617
+ >>> from transformers import AutoImageProcessor, AutoModelForObjectDetection
1618
+ >>> from PIL import Image
1619
+ >>> import requests
1620
+
1621
+ >>> url = "http://images.cocodataset.org/val2017/000000039769.jpg"
1622
+ >>> image = Image.open(requests.get(url, stream=True).raw)
1623
+
1624
+ >>> image_processor = AutoImageProcessor.from_pretrained("IDEA-Research/dab-detr-resnet-50")
1625
+ >>> model = AutoModelForObjectDetection.from_pretrained("IDEA-Research/dab-detr-resnet-50")
1626
+
1627
+ >>> inputs = image_processor(images=image, return_tensors="pt")
1628
+
1629
+ >>> with torch.no_grad():
1630
+ >>> outputs = model(**inputs)
1631
+
1632
+ >>> # convert outputs (bounding boxes and class logits) to Pascal VOC format (xmin, ymin, xmax, ymax)
1633
+ >>> target_sizes = torch.tensor([(image.height, image.width)])
1634
+ >>> results = image_processor.post_process_object_detection(outputs, threshold=0.5, target_sizes=target_sizes)[0]
1635
+ >>> for score, label, box in zip(results["scores"], results["labels"], results["boxes"]):
1636
+ ... box = [round(i, 2) for i in box.tolist()]
1637
+ ... print(
1638
+ ... f"Detected {model.config.id2label[label.item()]} with confidence "
1639
+ ... f"{round(score.item(), 3)} at location {box}"
1640
+ ... )
1641
+ Detected remote with confidence 0.833 at location [38.31, 72.1, 177.63, 118.45]
1642
+ Detected cat with confidence 0.831 at location [9.2, 51.38, 321.13, 469.0]
1643
+ Detected cat with confidence 0.804 at location [340.3, 16.85, 642.93, 370.95]
1644
+ Detected remote with confidence 0.683 at location [334.48, 73.49, 366.37, 190.01]
1645
+ Detected couch with confidence 0.535 at location [0.52, 1.19, 640.35, 475.1]
1646
+ ```"""
1647
+ output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
1648
+ output_hidden_states = (
1649
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
1650
+ )
1651
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
1652
+
1653
+ # First, sent images through DAB_DETR base model to obtain encoder + decoder outputs
1654
+ model_outputs = self.model(
1655
+ pixel_values,
1656
+ pixel_mask=pixel_mask,
1657
+ decoder_attention_mask=decoder_attention_mask,
1658
+ encoder_outputs=encoder_outputs,
1659
+ inputs_embeds=inputs_embeds,
1660
+ decoder_inputs_embeds=decoder_inputs_embeds,
1661
+ output_attentions=output_attentions,
1662
+ output_hidden_states=output_hidden_states,
1663
+ return_dict=return_dict,
1664
+ )
1665
+
1666
+ reference_points = model_outputs.reference_points if return_dict else model_outputs[-1]
1667
+ intermediate_hidden_states = model_outputs.intermediate_hidden_states if return_dict else model_outputs[-2]
1668
+
1669
+ # class logits + predicted bounding boxes
1670
+ logits = self.class_embed(intermediate_hidden_states[-1])
1671
+
1672
+ reference_before_sigmoid = inverse_sigmoid(reference_points)
1673
+ bbox_with_refinement = self.bbox_predictor(intermediate_hidden_states)
1674
+ bbox_with_refinement[..., : self.query_dim] += reference_before_sigmoid
1675
+ outputs_coord = bbox_with_refinement.sigmoid()
1676
+
1677
+ pred_boxes = outputs_coord[-1]
1678
+
1679
+ loss, loss_dict, auxiliary_outputs = None, None, None
1680
+ if labels is not None:
1681
+ outputs_class = None
1682
+ if self.config.auxiliary_loss:
1683
+ outputs_class = self.class_embed(intermediate_hidden_states)
1684
+ loss, loss_dict, auxiliary_outputs = self.loss_function(
1685
+ logits, labels, self.device, pred_boxes, self.config, outputs_class, outputs_coord
1686
+ )
1687
+
1688
+ if not return_dict:
1689
+ if auxiliary_outputs is not None:
1690
+ output = (logits, pred_boxes) + auxiliary_outputs + model_outputs
1691
+ else:
1692
+ output = (logits, pred_boxes) + model_outputs
1693
+ # Since DabDetrObjectDetectionOutput doesn't have reference points + intermedieate_hidden_states we cut down.
1694
+ return ((loss, loss_dict) + output) if loss is not None else output[:-2]
1695
+
1696
+ return DabDetrObjectDetectionOutput(
1697
+ loss=loss,
1698
+ loss_dict=loss_dict,
1699
+ logits=logits,
1700
+ pred_boxes=pred_boxes,
1701
+ auxiliary_outputs=auxiliary_outputs,
1702
+ last_hidden_state=model_outputs.last_hidden_state,
1703
+ decoder_hidden_states=model_outputs.decoder_hidden_states if output_hidden_states else None,
1704
+ decoder_attentions=model_outputs.decoder_attentions if output_attentions else None,
1705
+ cross_attentions=model_outputs.cross_attentions if output_attentions else None,
1706
+ encoder_last_hidden_state=model_outputs.encoder_last_hidden_state if output_hidden_states else None,
1707
+ encoder_hidden_states=model_outputs.encoder_hidden_states if output_hidden_states else None,
1708
+ encoder_attentions=model_outputs.encoder_attentions if output_attentions else None,
1709
+ )
1710
+
1711
+
1712
+ __all__ = [
1713
+ "DabDetrForObjectDetection",
1714
+ "DabDetrModel",
1715
+ "DabDetrPreTrainedModel",
1716
+ ]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/dac/__init__.py ADDED
@@ -0,0 +1,28 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # Copyright 2024 The HuggingFace Team. All rights reserved.
2
+ #
3
+ # Licensed under the Apache License, Version 2.0 (the "License");
4
+ # you may not use this file except in compliance with the License.
5
+ # You may obtain a copy of the License at
6
+ #
7
+ # http://www.apache.org/licenses/LICENSE-2.0
8
+ #
9
+ # Unless required by applicable law or agreed to in writing, software
10
+ # distributed under the License is distributed on an "AS IS" BASIS,
11
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12
+ # See the License for the specific language governing permissions and
13
+ # limitations under the License.
14
+ from typing import TYPE_CHECKING
15
+
16
+ from ...utils import _LazyModule
17
+ from ...utils.import_utils import define_import_structure
18
+
19
+
20
+ if TYPE_CHECKING:
21
+ from .configuration_dac import *
22
+ from .feature_extraction_dac import *
23
+ from .modeling_dac import *
24
+ else:
25
+ import sys
26
+
27
+ _file = globals()["__file__"]
28
+ sys.modules[__name__] = _LazyModule(__name__, _file, define_import_structure(_file), module_spec=__spec__)
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/dac/configuration_dac.py ADDED
@@ -0,0 +1,114 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2024 Descript and The HuggingFace Inc. team. All rights reserved.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """Dac model configuration"""
16
+
17
+ import math
18
+
19
+ import numpy as np
20
+
21
+ from ...configuration_utils import PretrainedConfig
22
+ from ...utils import logging
23
+
24
+
25
+ logger = logging.get_logger(__name__)
26
+
27
+
28
+ class DacConfig(PretrainedConfig):
29
+ r"""
30
+ This is the configuration class to store the configuration of an [`DacModel`]. It is used to instantiate a
31
+ Dac model according to the specified arguments, defining the model architecture. Instantiating a configuration
32
+ with the defaults will yield a similar configuration to that of the
33
+ [descript/dac_16khz](https://huggingface.co/descript/dac_16khz) architecture.
34
+
35
+ Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
36
+ documentation from [`PretrainedConfig`] for more information.
37
+
38
+ Args:
39
+ encoder_hidden_size (`int`, *optional*, defaults to 64):
40
+ Intermediate representation dimension for the encoder.
41
+ downsampling_ratios (`List[int]`, *optional*, defaults to `[2, 4, 8, 8]`):
42
+ Ratios for downsampling in the encoder. These are used in reverse order for upsampling in the decoder.
43
+ decoder_hidden_size (`int`, *optional*, defaults to 1536):
44
+ Intermediate representation dimension for the decoder.
45
+ n_codebooks (`int`, *optional*, defaults to 9):
46
+ Number of codebooks in the VQVAE.
47
+ codebook_size (`int`, *optional*, defaults to 1024):
48
+ Number of discrete codes in each codebook.
49
+ codebook_dim (`int`, *optional*, defaults to 8):
50
+ Dimension of the codebook vectors. If not defined, uses `encoder_hidden_size`.
51
+ quantizer_dropout (`bool`, *optional*, defaults to 0):
52
+ Whether to apply dropout to the quantizer.
53
+ commitment_loss_weight (float, *optional*, defaults to 0.25):
54
+ Weight of the commitment loss term in the VQVAE loss function.
55
+ codebook_loss_weight (float, *optional*, defaults to 1.0):
56
+ Weight of the codebook loss term in the VQVAE loss function.
57
+ sampling_rate (`int`, *optional*, defaults to 16000):
58
+ The sampling rate at which the audio waveform should be digitalized expressed in hertz (Hz).
59
+ Example:
60
+
61
+ ```python
62
+ >>> from transformers import DacModel, DacConfig
63
+
64
+ >>> # Initializing a "descript/dac_16khz" style configuration
65
+ >>> configuration = DacConfig()
66
+
67
+ >>> # Initializing a model (with random weights) from the "descript/dac_16khz" style configuration
68
+ >>> model = DacModel(configuration)
69
+
70
+ >>> # Accessing the model configuration
71
+ >>> configuration = model.config
72
+ ```"""
73
+
74
+ model_type = "dac"
75
+
76
+ def __init__(
77
+ self,
78
+ encoder_hidden_size=64,
79
+ downsampling_ratios=[2, 4, 8, 8],
80
+ decoder_hidden_size=1536,
81
+ n_codebooks=9,
82
+ codebook_size=1024,
83
+ codebook_dim=8,
84
+ quantizer_dropout=0,
85
+ commitment_loss_weight=0.25,
86
+ codebook_loss_weight=1.0,
87
+ sampling_rate=16000,
88
+ **kwargs,
89
+ ):
90
+ self.encoder_hidden_size = encoder_hidden_size
91
+ self.downsampling_ratios = downsampling_ratios
92
+ self.decoder_hidden_size = decoder_hidden_size
93
+ self.upsampling_ratios = downsampling_ratios[::-1]
94
+ self.n_codebooks = n_codebooks
95
+ self.codebook_size = codebook_size
96
+ self.codebook_dim = codebook_dim
97
+ self.quantizer_dropout = quantizer_dropout
98
+ self.sampling_rate = sampling_rate
99
+
100
+ self.hidden_size = encoder_hidden_size * (2 ** len(downsampling_ratios))
101
+
102
+ self.hop_length = int(np.prod(downsampling_ratios))
103
+ self.commitment_loss_weight = commitment_loss_weight
104
+ self.codebook_loss_weight = codebook_loss_weight
105
+
106
+ super().__init__(**kwargs)
107
+
108
+ @property
109
+ def frame_rate(self) -> int:
110
+ hop_length = np.prod(self.upsampling_ratios)
111
+ return math.ceil(self.sampling_rate / hop_length)
112
+
113
+
114
+ __all__ = ["DacConfig"]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/dac/convert_dac_checkpoint.py ADDED
@@ -0,0 +1,261 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2024 Descript and The HuggingFace Inc. team. All rights reserved.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ import argparse
16
+ import fnmatch
17
+ import re
18
+
19
+ import torch
20
+
21
+ from transformers import (
22
+ DacConfig,
23
+ DacFeatureExtractor,
24
+ DacModel,
25
+ logging,
26
+ )
27
+
28
+
29
+ # checkpoints downloaded using:
30
+ # pip install descript-audio-codec
31
+ # python3 -m dac download # downloads the default 44kHz variant
32
+ # python3 -m dac download --model_type 44khz # downloads the 44kHz variant
33
+ # python3 -m dac download --model_type 24khz # downloads the 24kHz variant
34
+ # python3 -m dac download --model_type 16khz # downloads the 16kHz variant
35
+ # More informations: https://github.com/descriptinc/descript-audio-codec/tree/main
36
+
37
+ logging.set_verbosity_info()
38
+ logger = logging.get_logger("transformers.models.dac")
39
+
40
+
41
+ def match_pattern(string, pattern):
42
+ # Split the pattern into parts
43
+ pattern_parts = pattern.split(".")
44
+ string_parts = string.split(".")
45
+
46
+ pattern_block_count = string_block_count = 0
47
+
48
+ for part in pattern_parts:
49
+ if part.startswith("block"):
50
+ pattern_block_count += 1
51
+
52
+ for part in string_parts:
53
+ if part.startswith("block"):
54
+ string_block_count += 1
55
+
56
+ return fnmatch.fnmatch(string, pattern) and string_block_count == pattern_block_count
57
+
58
+
59
+ TOP_LEVEL_KEYS = []
60
+ IGNORE_KEYS = []
61
+
62
+
63
+ MAPPING_ENCODER = {
64
+ "encoder.block.0": ["encoder.conv1"],
65
+ "encoder.block.5": ["encoder.snake1"],
66
+ "encoder.block.6": ["encoder.conv2"],
67
+ "encoder.block.*.block.*.block.0".replace("*", r"\d+"): ["encoder.block", "res_unit", "snake1"],
68
+ "encoder.block.*.block.*.block.1".replace("*", r"\d+"): ["encoder.block", "res_unit", "conv1"],
69
+ "encoder.block.*.block.*.block.2".replace("*", r"\d+"): ["encoder.block", "res_unit", "snake2"],
70
+ "encoder.block.*.block.*.block.3".replace("*", r"\d+"): ["encoder.block", "res_unit", "conv2"],
71
+ "encoder.block.*.block.3".replace("*", r"\d+"): ["encoder.block", "snake1"],
72
+ "encoder.block.*.block.4".replace("*", r"\d+"): ["encoder.block", "conv1"],
73
+ }
74
+
75
+ MAPPING_QUANTIZER = {
76
+ "quantizer.quantizers.*": ["quantizer.quantizers.*"],
77
+ }
78
+
79
+ MAPPING_DECODER = {
80
+ "decoder.model.0": ["decoder.conv1"],
81
+ "decoder.model.5": ["decoder.snake1"],
82
+ "decoder.model.6": ["decoder.conv2"],
83
+ "decoder.model.*.block.0".replace("*", r"\d+"): ["decoder.block", "snake1"],
84
+ "decoder.model.*.block.1".replace("*", r"\d+"): ["decoder.block", "conv_t1"],
85
+ "decoder.model.*.block.*.block.0".replace("*", r"\d+"): ["decoder.block", "res_unit", "snake1"],
86
+ "decoder.model.*.block.*.block.1".replace("*", r"\d+"): ["decoder.block", "res_unit", "conv1"],
87
+ "decoder.model.*.block.*.block.2".replace("*", r"\d+"): ["decoder.block", "res_unit", "snake2"],
88
+ "decoder.model.*.block.*.block.3".replace("*", r"\d+"): ["decoder.block", "res_unit", "conv2"],
89
+ }
90
+
91
+
92
+ MAPPING = {
93
+ **MAPPING_ENCODER,
94
+ **MAPPING_QUANTIZER,
95
+ **MAPPING_DECODER,
96
+ }
97
+
98
+
99
+ def set_recursively(hf_pointer, key, value, full_name, weight_type):
100
+ for attribute in key.split("."):
101
+ hf_pointer = getattr(hf_pointer, attribute)
102
+
103
+ if weight_type is not None:
104
+ hf_shape = getattr(hf_pointer, weight_type).shape
105
+ else:
106
+ hf_shape = hf_pointer.shape
107
+
108
+ if hf_shape != value.shape:
109
+ raise ValueError(
110
+ f"Shape of hf {key + '.' + weight_type if weight_type is not None else ''} is {hf_shape}, but should be"
111
+ f" {value.shape} for {full_name}"
112
+ )
113
+
114
+ if weight_type == "weight":
115
+ hf_pointer.weight.data = value
116
+ elif weight_type == "weight_g":
117
+ hf_pointer.weight_g.data = value
118
+ elif weight_type == "weight_v":
119
+ hf_pointer.weight_v.data = value
120
+ elif weight_type == "bias":
121
+ hf_pointer.bias.data = value
122
+ elif weight_type == "alpha":
123
+ hf_pointer.alpha.data = value
124
+ logger.info(f"{key + ('.' + weight_type if weight_type is not None else '')} was initialized from {full_name}.")
125
+
126
+
127
+ def should_ignore(name, ignore_keys):
128
+ for key in ignore_keys:
129
+ if key.endswith(".*"):
130
+ if name.startswith(key[:-1]):
131
+ return True
132
+ elif ".*." in key:
133
+ prefix, suffix = key.split(".*.")
134
+ if prefix in name and suffix in name:
135
+ return True
136
+ elif key in name:
137
+ return True
138
+ return False
139
+
140
+
141
+ def recursively_load_weights(orig_dict, hf_model, model_name):
142
+ unused_weights = []
143
+
144
+ if model_name not in ["dac_16khz", "dac_24khz", "dac_44khz"]:
145
+ raise ValueError(f"Unsupported model: {model_name}")
146
+
147
+ for name, value in orig_dict.items():
148
+ is_used = False
149
+ for key, mapped_key in MAPPING.items():
150
+ regex = re.compile(key)
151
+ if regex.search(name):
152
+ if len(mapped_key) == 1:
153
+ if mapped_key[0][0] == "q":
154
+ mapped_key = ".".join(name.split(".")[:-1])
155
+ else:
156
+ mapped_key = mapped_key[0]
157
+ elif len(mapped_key) == 3:
158
+ integers = re.findall(r"\b\d+\b", name)
159
+ if mapped_key[0][0] == "d":
160
+ mapped_key = "{}.{}.{}{}.{}".format(
161
+ mapped_key[0],
162
+ str(int(integers[0]) - 1),
163
+ mapped_key[1],
164
+ str(int(integers[1]) - 1),
165
+ mapped_key[2],
166
+ )
167
+ else:
168
+ mapped_key = "{}.{}.{}{}.{}".format(
169
+ mapped_key[0],
170
+ str(int(integers[0]) - 1),
171
+ mapped_key[1],
172
+ str(int(integers[1]) + 1),
173
+ mapped_key[2],
174
+ )
175
+ elif len(mapped_key) == 2:
176
+ integers = re.findall(r"\b\d+\b", name)
177
+ mapped_key = "{}.{}.{}".format(mapped_key[0], str(int(integers[0]) - 1), mapped_key[1])
178
+
179
+ is_used = True
180
+ if "weight_g" in name:
181
+ weight_type = "weight_g"
182
+ elif "weight_v" in name:
183
+ weight_type = "weight_v"
184
+ elif "bias" in name:
185
+ weight_type = "bias"
186
+ elif "alpha" in name:
187
+ weight_type = "alpha"
188
+ elif "weight" in name:
189
+ weight_type = "weight"
190
+ set_recursively(hf_model, mapped_key, value, name, weight_type)
191
+
192
+ if not is_used:
193
+ unused_weights.append(name)
194
+
195
+ print(list(set(unused_weights)))
196
+
197
+ logger.warning(f"Unused weights: {unused_weights}")
198
+
199
+
200
+ @torch.no_grad()
201
+ def convert_checkpoint(
202
+ model_name,
203
+ checkpoint_path,
204
+ pytorch_dump_folder_path,
205
+ sample_rate=16000,
206
+ repo_id=None,
207
+ ):
208
+ model_dict = torch.load(checkpoint_path, "cpu")
209
+
210
+ config = DacConfig()
211
+
212
+ metadata = model_dict["metadata"]["kwargs"]
213
+ config.encoder_hidden_size = metadata["encoder_dim"]
214
+ config.downsampling_ratios = metadata["encoder_rates"]
215
+ config.codebook_size = metadata["codebook_size"]
216
+ config.n_codebooks = metadata["n_codebooks"]
217
+ config.codebook_dim = metadata["codebook_dim"]
218
+ config.decoder_hidden_size = metadata["decoder_dim"]
219
+ config.upsampling_ratios = metadata["decoder_rates"]
220
+ config.quantizer_dropout = float(metadata["quantizer_dropout"])
221
+ config.sampling_rate = sample_rate
222
+
223
+ model = DacModel(config)
224
+ feature_extractor = DacFeatureExtractor()
225
+ feature_extractor.sampling_rate = sample_rate
226
+
227
+ original_checkpoint = model_dict["state_dict"]
228
+
229
+ model.apply_weight_norm()
230
+ recursively_load_weights(original_checkpoint, model, model_name)
231
+ model.remove_weight_norm()
232
+
233
+ model.save_pretrained(pytorch_dump_folder_path)
234
+
235
+ if repo_id:
236
+ print("Pushing to the hub...")
237
+ feature_extractor.push_to_hub(repo_id)
238
+ model.push_to_hub(repo_id)
239
+
240
+
241
+ if __name__ == "__main__":
242
+ parser = argparse.ArgumentParser()
243
+ parser.add_argument(
244
+ "--model",
245
+ default="dac_44khz",
246
+ type=str,
247
+ help="The model to convert. Should be one of 'dac_16khz', 'dac_24khz', 'dac_44khz'.",
248
+ )
249
+ parser.add_argument("--checkpoint_path", required=True, default=None, type=str, help="Path to original checkpoint")
250
+ parser.add_argument(
251
+ "--pytorch_dump_folder_path", required=True, default=None, type=str, help="Path to the output PyTorch model."
252
+ )
253
+ parser.add_argument(
254
+ "--push_to_hub", default=None, type=str, help="Where to upload the converted model on the 🤗 hub."
255
+ )
256
+ parser.add_argument("--sample_rate", default=None, type=str, help="Sample rate used by DacFeatureExtractor")
257
+ args = parser.parse_args()
258
+
259
+ convert_checkpoint(
260
+ args.model, args.checkpoint_path, args.pytorch_dump_folder_path, args.sample_rate, args.push_to_hub
261
+ )
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/dac/feature_extraction_dac.py ADDED
@@ -0,0 +1,173 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2024 Descript and The HuggingFace Inc. team. All rights reserved.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """Feature extractor class for DAC"""
16
+
17
+ from typing import List, Optional, Union
18
+
19
+ import numpy as np
20
+
21
+ from ...feature_extraction_sequence_utils import SequenceFeatureExtractor
22
+ from ...feature_extraction_utils import BatchFeature
23
+ from ...utils import PaddingStrategy, TensorType, logging
24
+
25
+
26
+ logger = logging.get_logger(__name__)
27
+
28
+
29
+ class DacFeatureExtractor(SequenceFeatureExtractor):
30
+ r"""
31
+ Constructs an Dac feature extractor.
32
+
33
+ This feature extractor inherits from [`~feature_extraction_sequence_utils.SequenceFeatureExtractor`] which contains
34
+ most of the main methods. Users should refer to this superclass for more information regarding those methods.
35
+
36
+ Args:
37
+ feature_size (`int`, *optional*, defaults to 1):
38
+ The feature dimension of the extracted features. Use 1 for mono, 2 for stereo.
39
+ sampling_rate (`int`, *optional*, defaults to 16000):
40
+ The sampling rate at which the audio waveform should be digitalized, expressed in hertz (Hz).
41
+ padding_value (`float`, *optional*, defaults to 0.0):
42
+ The value that is used for padding.
43
+ hop_length (`int`, *optional*, defaults to 512):
44
+ Overlap length between successive windows.
45
+ """
46
+
47
+ model_input_names = ["input_values", "n_quantizers"]
48
+
49
+ def __init__(
50
+ self,
51
+ feature_size: int = 1,
52
+ sampling_rate: int = 16000,
53
+ padding_value: float = 0.0,
54
+ hop_length: int = 512,
55
+ **kwargs,
56
+ ):
57
+ super().__init__(feature_size=feature_size, sampling_rate=sampling_rate, padding_value=padding_value, **kwargs)
58
+ self.hop_length = hop_length
59
+
60
+ def __call__(
61
+ self,
62
+ raw_audio: Union[np.ndarray, List[float], List[np.ndarray], List[List[float]]],
63
+ padding: Optional[Union[bool, str, PaddingStrategy]] = None,
64
+ truncation: Optional[bool] = False,
65
+ max_length: Optional[int] = None,
66
+ return_tensors: Optional[Union[str, TensorType]] = None,
67
+ sampling_rate: Optional[int] = None,
68
+ ) -> BatchFeature:
69
+ """
70
+ Main method to featurize and prepare for the model one or several sequence(s).
71
+
72
+ Args:
73
+ raw_audio (`np.ndarray`, `List[float]`, `List[np.ndarray]`, `List[List[float]]`):
74
+ The sequence or batch of sequences to be processed. Each sequence can be a numpy array, a list of float
75
+ values, a list of numpy arrays or a list of list of float values. The numpy array must be of shape
76
+ `(num_samples,)` for mono audio (`feature_size = 1`), or `(2, num_samples)` for stereo audio
77
+ (`feature_size = 2`).
78
+ padding (`bool`, `str` or [`~utils.PaddingStrategy`], *optional*, defaults to `True`):
79
+ Select a strategy to pad the returned sequences (according to the model's padding side and padding
80
+ index) among:
81
+
82
+ - `True` or `'longest'`: Pad to the longest sequence in the batch (or no padding if only a single
83
+ sequence if provided).
84
+ - `'max_length'`: Pad to a maximum length specified with the argument `max_length` or to the maximum
85
+ acceptable input length for the model if that argument is not provided.
86
+ - `False` or `'do_not_pad'` (default): No padding (i.e., can output a batch with sequences of different
87
+ lengths).
88
+ truncation (`bool`, *optional*, defaults to `False`):
89
+ Activates truncation to cut input sequences longer than `max_length` to `max_length`.
90
+ max_length (`int`, *optional*):
91
+ Maximum length of the returned list and optionally padding length (see above).
92
+ return_tensors (`str` or [`~utils.TensorType`], *optional*, default to 'pt'):
93
+ If set, will return tensors instead of list of python integers. Acceptable values are:
94
+
95
+ - `'tf'`: Return TensorFlow `tf.constant` objects.
96
+ - `'pt'`: Return PyTorch `torch.Tensor` objects.
97
+ - `'np'`: Return Numpy `np.ndarray` objects.
98
+ sampling_rate (`int`, *optional*):
99
+ The sampling rate at which the `audio` input was sampled. It is strongly recommended to pass
100
+ `sampling_rate` at the forward call to prevent silent errors.
101
+ """
102
+ if sampling_rate is not None:
103
+ if sampling_rate != self.sampling_rate:
104
+ raise ValueError(
105
+ f"The model corresponding to this feature extractor: {self} was trained using a sampling rate of"
106
+ f" {self.sampling_rate}. Please make sure that the provided audio input was sampled with"
107
+ f" {self.sampling_rate} and not {sampling_rate}."
108
+ )
109
+ else:
110
+ logger.warning(
111
+ f"It is strongly recommended to pass the `sampling_rate` argument to `{self.__class__.__name__}()`. "
112
+ "Failing to do so can result in silent errors that might be hard to debug."
113
+ )
114
+
115
+ if padding and truncation:
116
+ raise ValueError("Both padding and truncation were set. Make sure you only set one.")
117
+ elif padding is None:
118
+ # by default let's pad the inputs
119
+ padding = True
120
+
121
+ is_batched = bool(
122
+ isinstance(raw_audio, (list, tuple)) and (isinstance(raw_audio[0], (np.ndarray, tuple, list)))
123
+ )
124
+
125
+ if is_batched:
126
+ raw_audio = [np.asarray(audio, dtype=np.float32).T for audio in raw_audio]
127
+ elif not is_batched and not isinstance(raw_audio, np.ndarray):
128
+ raw_audio = np.asarray(raw_audio, dtype=np.float32)
129
+ elif isinstance(raw_audio, np.ndarray) and raw_audio.dtype is np.dtype(np.float64):
130
+ raw_audio = raw_audio.astype(np.float32)
131
+
132
+ # always return batch
133
+ if not is_batched:
134
+ raw_audio = [np.asarray(raw_audio).T]
135
+
136
+ # verify inputs are valid
137
+ for idx, example in enumerate(raw_audio):
138
+ if example.ndim > 2:
139
+ raise ValueError(f"Expected input shape (channels, length) but got shape {example.shape}")
140
+ if self.feature_size == 1 and example.ndim != 1:
141
+ raise ValueError(f"Expected mono audio but example has {example.shape[-1]} channels")
142
+ if self.feature_size == 2:
143
+ raise ValueError("Stereo audio isn't supported for now")
144
+
145
+ input_values = BatchFeature({"input_values": raw_audio})
146
+
147
+ # normal padding on batch
148
+ padded_inputs = self.pad(
149
+ input_values,
150
+ max_length=max_length,
151
+ truncation=truncation,
152
+ padding=padding,
153
+ return_attention_mask=False,
154
+ pad_to_multiple_of=self.hop_length,
155
+ )
156
+
157
+ if padding:
158
+ padded_inputs.input_values = padded_inputs.input_values[:, np.newaxis, :]
159
+
160
+ input_values = []
161
+ for example in padded_inputs.pop("input_values"):
162
+ if self.feature_size == 1:
163
+ example = example[..., None]
164
+ input_values.append(example.T)
165
+
166
+ padded_inputs["input_values"] = input_values
167
+ if return_tensors is not None:
168
+ padded_inputs = padded_inputs.convert_to_tensors(return_tensors)
169
+
170
+ return padded_inputs
171
+
172
+
173
+ __all__ = ["DacFeatureExtractor"]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/dac/modeling_dac.py ADDED
@@ -0,0 +1,724 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2024 Descript and The HuggingFace Inc. team. All rights reserved.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """Transformers DAC model."""
16
+
17
+ import math
18
+ from dataclasses import dataclass
19
+ from typing import Optional
20
+
21
+ import numpy as np
22
+ import torch
23
+ import torch.nn as nn
24
+ import torch.nn.functional as F
25
+
26
+ from ...modeling_utils import PreTrainedModel
27
+ from ...utils import (
28
+ ModelOutput,
29
+ add_start_docstrings,
30
+ add_start_docstrings_to_model_forward,
31
+ replace_return_docstrings,
32
+ )
33
+ from .configuration_dac import DacConfig
34
+
35
+
36
+ # General docstring
37
+ _CONFIG_FOR_DOC = "DacConfig"
38
+
39
+
40
+ @dataclass
41
+ class DacOutput(ModelOutput):
42
+ """
43
+ Args:
44
+ loss (`torch.Tensor`):
45
+ Loss from the encoder model, comprising the weighted combination of the commitment and codebook losses.
46
+ audio_values (`torch.Tensor` of shape `(batch_size, input_length)`):
47
+ Reconstructed audio data.
48
+ quantized_representation (`torch.Tensor` of shape `(batch_size, dimension, time_steps)`):
49
+ Quantized continuous representation of input.
50
+ audio_codes (`torch.LongTensor` of shape `(batch_size, num_codebooks, time_steps)`):
51
+ Codebook indices for each codebook (quantized discrete representation of input).
52
+ projected_latents (`torch.Tensor` of shape `(batch_size, num_codebooks * dimension, time_steps)`):
53
+ Projected latents (continuous representation of input before quantization).
54
+ """
55
+
56
+ loss: torch.FloatTensor = None
57
+ audio_values: torch.FloatTensor = None
58
+ quantized_representation: torch.FloatTensor = None
59
+ audio_codes: torch.LongTensor = None
60
+ projected_latents: torch.FloatTensor = None
61
+
62
+
63
+ @dataclass
64
+ class DacEncoderOutput(ModelOutput):
65
+ """
66
+ Args:
67
+ loss (`torch.Tensor`):
68
+ Loss from the encoder model, comprising the weighted combination of the commitment and codebook losses.
69
+ quantized_representation (`torch.Tensor` of shape `(batch_size, dimension, time_steps)`, *optional*):
70
+ Quantized continuous representation of input.
71
+ audio_codes (`torch.Tensor` of shape `(batch_size, num_codebooks, time_steps)`, *optional*):
72
+ Codebook indices for each codebook (quantized discrete representation of input).
73
+ projected_latents (`torch.Tensor` of shape `(batch_size, num_codebooks * dimension, time_steps)`, *optional*):
74
+ Projected latents (continuous representation of input before quantization).
75
+ """
76
+
77
+ loss: torch.FloatTensor = None
78
+ quantized_representation: torch.FloatTensor = None
79
+ audio_codes: torch.FloatTensor = None
80
+ projected_latents: torch.FloatTensor = None
81
+
82
+
83
+ @dataclass
84
+ # Copied from transformers.models.encodec.modeling_encodec.EncodecDecoderOutput with Encodec->Dac, segment_length->input_length
85
+ class DacDecoderOutput(ModelOutput):
86
+ """
87
+ Args:
88
+ audio_values (`torch.FloatTensor` of shape `(batch_size, input_length)`, *optional*):
89
+ Decoded audio values, obtained using the decoder part of Dac.
90
+ """
91
+
92
+ audio_values: torch.FloatTensor = None
93
+
94
+
95
+ class Snake1d(nn.Module):
96
+ """
97
+ A 1-dimensional Snake activation function module.
98
+ """
99
+
100
+ def __init__(self, hidden_dim):
101
+ super().__init__()
102
+ self.alpha = nn.Parameter(torch.ones(1, hidden_dim, 1))
103
+
104
+ def forward(self, hidden_states):
105
+ shape = hidden_states.shape
106
+ hidden_states = hidden_states.reshape(shape[0], shape[1], -1)
107
+ hidden_states = hidden_states + (self.alpha + 1e-9).reciprocal() * torch.sin(self.alpha * hidden_states).pow(2)
108
+ hidden_states = hidden_states.reshape(shape)
109
+ return hidden_states
110
+
111
+
112
+ class DacVectorQuantize(nn.Module):
113
+ """
114
+ Implementation of VQ similar to Karpathy's repo (https://github.com/karpathy/deep-vector-quantization)
115
+
116
+ Additionally uses following tricks from improved VQGAN
117
+ (https://arxiv.org/pdf/2110.04627.pdf):
118
+ 1. Factorized codes: Perform nearest neighbor lookup in low-dimensional space
119
+ for improved codebook usage
120
+ 2. l2-normalized codes: Converts euclidean distance to cosine similarity which
121
+ improves training stability
122
+ """
123
+
124
+ def __init__(self, config: DacConfig):
125
+ super().__init__()
126
+
127
+ self.in_proj = nn.Conv1d(config.hidden_size, config.codebook_dim, kernel_size=1)
128
+ self.out_proj = nn.Conv1d(config.codebook_dim, config.hidden_size, kernel_size=1)
129
+ self.codebook = nn.Embedding(config.codebook_size, config.codebook_dim)
130
+
131
+ def forward(self, hidden_state):
132
+ """
133
+ Quantizes the input tensor using a fixed codebook and returns the corresponding codebook vectors.
134
+
135
+ Args:
136
+ hidden_state (`torch.FloatTensor` of shape `(batch_size, dimension, time_steps)`):
137
+ Input tensor.
138
+
139
+ Returns:
140
+ quantized_representation (`torch.Tensor`of shape `(batch_size, dimension, time_steps)`):
141
+ Quantized continuous representation of input.
142
+ commitment_loss (`torch.FloatTensor`of shape `(1)`):
143
+ Commitment loss to train encoder to predict vectors closer to codebook entries.
144
+ codebook_loss (`torch.FloatTensor`of shape `(1)`):
145
+ Codebook loss to update the codebook.
146
+ audio_codes (`torch.LongTensor` of shape `(batch_size, time_steps)`):
147
+ Codebook indices for each codebook, quantized discrete representation of input.
148
+ projected_latents (torch.FloatTensor of shape `(batch_size, num_codebooks * dimension, time_steps)`):
149
+ Projected latents (continuous representation of input before quantization).
150
+ """
151
+
152
+ projected_latents = self.in_proj(hidden_state)
153
+ quantized_representation, audio_codes = self.decode_latents(projected_latents)
154
+
155
+ commitment_loss = F.mse_loss(projected_latents, quantized_representation.detach(), reduction="mean")
156
+ codebook_loss = F.mse_loss(quantized_representation, projected_latents.detach(), reduction="mean")
157
+ # noop in forward pass, straight-through gradient estimator in backward pass
158
+ quantized_representation = projected_latents + (quantized_representation - projected_latents).detach()
159
+ quantized_representation = self.out_proj(quantized_representation)
160
+
161
+ return quantized_representation, commitment_loss, codebook_loss, audio_codes, projected_latents
162
+
163
+ def decode_latents(self, hidden_states):
164
+ batch_size, hidden_dim, sequence_length = hidden_states.shape
165
+ encodings = hidden_states.permute(0, 2, 1).reshape(batch_size * sequence_length, hidden_dim)
166
+ codebook = self.codebook.weight # codebook: (N x D)
167
+
168
+ # L2 normalize encodings and codebook (ViT-VQGAN)
169
+ encodings = F.normalize(encodings)
170
+ codebook = F.normalize(codebook)
171
+
172
+ # Compute euclidean distance with codebook
173
+ l2_norm = encodings.pow(2).sum(1, keepdim=True)
174
+ dist = -(l2_norm - 2 * encodings @ codebook.t()) + codebook.pow(2).sum(1, keepdim=True).t()
175
+
176
+ indices = dist.max(1)[1]
177
+ indices = indices.reshape(hidden_states.size(0), -1)
178
+ quantized_representation = self.codebook(indices).transpose(1, 2)
179
+ return quantized_representation, indices
180
+
181
+
182
+ class DacResidualUnit(nn.Module):
183
+ """
184
+ A residual unit composed of Snake1d and weight-normalized Conv1d layers with dilations.
185
+ """
186
+
187
+ def __init__(self, dimension: int = 16, dilation: int = 1):
188
+ super().__init__()
189
+ pad = ((7 - 1) * dilation) // 2
190
+
191
+ self.snake1 = Snake1d(dimension)
192
+ self.conv1 = nn.Conv1d(dimension, dimension, kernel_size=7, dilation=dilation, padding=pad)
193
+ self.snake2 = Snake1d(dimension)
194
+ self.conv2 = nn.Conv1d(dimension, dimension, kernel_size=1)
195
+
196
+ def forward(self, hidden_state):
197
+ """
198
+ Forward pass through the residual unit.
199
+
200
+ Args:
201
+ hidden_state (`torch.Tensor` of shape `(batch_size, channels, time_steps)`):
202
+ Input tensor .
203
+
204
+ Returns:
205
+ output_tensor (`torch.Tensor` of shape `(batch_size, channels, time_steps)`):
206
+ Input tensor after passing through the residual unit.
207
+ """
208
+ output_tensor = hidden_state
209
+ output_tensor = self.conv1(self.snake1(output_tensor))
210
+ output_tensor = self.conv2(self.snake2(output_tensor))
211
+
212
+ padding = (hidden_state.shape[-1] - output_tensor.shape[-1]) // 2
213
+ if padding > 0:
214
+ hidden_state = hidden_state[..., padding:-padding]
215
+ output_tensor = hidden_state + output_tensor
216
+ return output_tensor
217
+
218
+
219
+ class DacEncoderBlock(nn.Module):
220
+ """Encoder block used in DAC encoder."""
221
+
222
+ def __init__(self, config: DacConfig, stride: int = 1, stride_index: int = 1):
223
+ super().__init__()
224
+
225
+ dimension = config.encoder_hidden_size * 2**stride_index
226
+ self.res_unit1 = DacResidualUnit(dimension // 2, dilation=1)
227
+ self.res_unit2 = DacResidualUnit(dimension // 2, dilation=3)
228
+ self.res_unit3 = DacResidualUnit(dimension // 2, dilation=9)
229
+ self.snake1 = Snake1d(dimension // 2)
230
+ self.conv1 = nn.Conv1d(
231
+ dimension // 2, dimension, kernel_size=2 * stride, stride=stride, padding=math.ceil(stride / 2)
232
+ )
233
+
234
+ def forward(self, hidden_state):
235
+ hidden_state = self.res_unit1(hidden_state)
236
+ hidden_state = self.res_unit2(hidden_state)
237
+ hidden_state = self.snake1(self.res_unit3(hidden_state))
238
+ hidden_state = self.conv1(hidden_state)
239
+
240
+ return hidden_state
241
+
242
+
243
+ class DacDecoderBlock(nn.Module):
244
+ """Decoder block used in DAC decoder."""
245
+
246
+ def __init__(self, config: DacConfig, stride: int = 1, stride_index: int = 1):
247
+ super().__init__()
248
+
249
+ input_dim = config.decoder_hidden_size // 2**stride_index
250
+ output_dim = config.decoder_hidden_size // 2 ** (stride_index + 1)
251
+ self.snake1 = Snake1d(input_dim)
252
+ self.conv_t1 = nn.ConvTranspose1d(
253
+ input_dim,
254
+ output_dim,
255
+ kernel_size=2 * stride,
256
+ stride=stride,
257
+ padding=math.ceil(stride / 2),
258
+ )
259
+
260
+ self.res_unit1 = DacResidualUnit(output_dim, dilation=1)
261
+ self.res_unit2 = DacResidualUnit(output_dim, dilation=3)
262
+ self.res_unit3 = DacResidualUnit(output_dim, dilation=9)
263
+
264
+ def forward(self, hidden_state):
265
+ hidden_state = self.snake1(hidden_state)
266
+ hidden_state = self.conv_t1(hidden_state)
267
+ hidden_state = self.res_unit1(hidden_state)
268
+ hidden_state = self.res_unit2(hidden_state)
269
+ hidden_state = self.res_unit3(hidden_state)
270
+
271
+ return hidden_state
272
+
273
+
274
+ class DacResidualVectorQuantize(nn.Module):
275
+ """
276
+ ResidualVectorQuantize block - Introduced in SoundStream: An end2end neural audio codec (https://arxiv.org/abs/2107.03312)
277
+ """
278
+
279
+ def __init__(self, config: DacConfig):
280
+ super().__init__()
281
+
282
+ n_codebooks = config.n_codebooks
283
+ quantizer_dropout = config.quantizer_dropout
284
+
285
+ self.n_codebooks = n_codebooks
286
+
287
+ self.quantizers = nn.ModuleList([DacVectorQuantize(config) for i in range(config.n_codebooks)])
288
+ self.quantizer_dropout = quantizer_dropout
289
+
290
+ def forward(self, hidden_state, n_quantizers: int = None):
291
+ """
292
+ Quantizes the input tensor using a fixed set of codebooks and returns corresponding codebook vectors.
293
+ Args:
294
+ hidden_state (`torch.Tensor` of shape `(batch_size, dimension, time_steps)`):
295
+ Input tensor to be quantized.
296
+ n_quantizers (`int`, *optional*):
297
+ Number of quantizers to use. If specified and `self.quantizer_dropout` is True,
298
+ this argument is ignored during training, and a random number of quantizers is used.
299
+
300
+ Returns:
301
+ quantized_representation (`torch.Tensor` of shape `(batch_size, dimension, time_steps)`):
302
+ Quantized continuous representation of input.
303
+ audio_codes (`torch.Tensor` of shape `(batch_size, num_codebooks, time_steps)`):
304
+ Codebook indices for each codebook (quantized discrete representation of input).
305
+ projected_latents (`torch.Tensor` of shape `(batch_size, num_codebooks * dimension, time_steps)`):
306
+ Projected latents (continuous representation of input before quantization).
307
+ commitment_loss (`torch.Tensor` of shape `(1)`):
308
+ Commitment loss to train the encoder to predict vectors closer to codebook entries.
309
+ codebook_loss (`torch.Tensor` of shape `(1)`):
310
+ Codebook loss to update the codebook.
311
+ """
312
+
313
+ quantized_representation = 0
314
+ residual = hidden_state
315
+ commitment_loss = 0
316
+ codebook_loss = 0
317
+
318
+ audio_codes = []
319
+ projected_latents = []
320
+
321
+ n_quantizers = n_quantizers if n_quantizers is not None else self.n_codebooks
322
+ if self.training:
323
+ n_quantizers = torch.ones((hidden_state.shape[0],)) * self.n_codebooks + 1
324
+ dropout = torch.randint(1, self.n_codebooks + 1, (hidden_state.shape[0],))
325
+ n_dropout = int(hidden_state.shape[0] * self.quantizer_dropout)
326
+ n_quantizers[:n_dropout] = dropout[:n_dropout]
327
+ n_quantizers = n_quantizers.to(hidden_state.device)
328
+
329
+ for i, quantizer in enumerate(self.quantizers):
330
+ if self.training is False and i >= n_quantizers:
331
+ break
332
+
333
+ quantized_representation_i, commitment_loss_i, codebook_loss_i, indices_i, projected_latents_i = quantizer(
334
+ residual
335
+ )
336
+
337
+ # Create mask to apply quantizer dropout
338
+ mask = torch.full((hidden_state.shape[0],), fill_value=i, device=hidden_state.device) < n_quantizers
339
+ quantized_representation = quantized_representation + quantized_representation_i * mask[:, None, None]
340
+ residual = residual - quantized_representation_i
341
+
342
+ # Sum losses
343
+ commitment_loss += commitment_loss_i * mask
344
+ codebook_loss += codebook_loss_i * mask
345
+
346
+ audio_codes.append(indices_i)
347
+ projected_latents.append(projected_latents_i)
348
+
349
+ audio_codes = torch.stack(audio_codes, dim=1)
350
+ projected_latents = torch.cat(projected_latents, dim=1)
351
+
352
+ return quantized_representation, audio_codes, projected_latents, commitment_loss, codebook_loss
353
+
354
+ def from_codes(self, audio_codes: torch.Tensor):
355
+ """
356
+ Reconstructs the continuous representation from quantized codes.
357
+
358
+ Args:
359
+ audio_codes (`torch.Tensor` of shape `(batch_size, num_codebooks, time_steps)`):
360
+ Quantized discrete representation of input.
361
+
362
+ Returns:
363
+ quantized_representation (`torch.Tensor`):
364
+ Quantized continuous representation of input.
365
+ projected_latents (`torch.Tensor`):
366
+ List of projected latents (continuous representations of input before quantization)
367
+ for each codebook.
368
+ audio_codes (`torch.Tensor`):
369
+ Codebook indices for each codebook.
370
+ """
371
+ quantized_representation = 0.0
372
+ projected_latents = []
373
+ n_codebooks = audio_codes.shape[1]
374
+ for i in range(n_codebooks):
375
+ projected_latents_i = self.quantizers[i].codebook(audio_codes[:, i, :]).transpose(1, 2)
376
+ projected_latents.append(projected_latents_i)
377
+ quantized_representation += self.quantizers[i].out_proj(projected_latents_i)
378
+ return quantized_representation, torch.cat(projected_latents, dim=1), audio_codes
379
+
380
+ def from_latents(self, latents: torch.Tensor):
381
+ """Reconstructs the quantized representation from unquantized latents.
382
+
383
+ Args:
384
+ latents (`torch.Tensor` of shape `(batch_size, total_latent_dimension, time_steps)`):
385
+ Continuous representation of input after projection.
386
+
387
+ Returns:
388
+ quantized_representation (`torch.Tensor` of shape `(batch_size, dimension, time_steps)`):
389
+ Quantized representation of the full-projected space.
390
+ quantized_latents (`torch.Tensor` of shape `(batch_size, dimension, time_steps)`):
391
+ Quantized representation of the latent space (continuous representation before quantization).
392
+ """
393
+ quantized_representation = 0
394
+ quantized_latents = []
395
+ codes = []
396
+ codebook_dims_tensor = torch.tensor([0] + [q.codebook_dim for q in self.quantizers])
397
+ dims = torch.cumsum(codebook_dims_tensor, dim=0)
398
+
399
+ n_codebooks = np.where(dims <= latents.shape[1])[0].max(axis=0, keepdims=True)[0]
400
+ for i in range(n_codebooks):
401
+ hidden_dim_j, hidden_dim_k = dims[i], dims[i + 1]
402
+ quantized_latents_i, codes_i = self.quantizers[i].decode_latents(latents[:, hidden_dim_j:hidden_dim_k, :])
403
+ quantized_latents.append(quantized_latents_i)
404
+ codes.append(codes_i)
405
+
406
+ quantized_representation_i = self.quantizers[i].out_proj(quantized_latents_i)
407
+ quantized_representation = quantized_representation + quantized_representation_i
408
+
409
+ return quantized_representation, torch.cat(quantized_latents, dim=1)
410
+
411
+
412
+ class DacDecoder(nn.Module):
413
+ """DAC Decoder"""
414
+
415
+ def __init__(self, config: DacConfig):
416
+ super().__init__()
417
+
418
+ input_channel = config.hidden_size
419
+ channels = config.decoder_hidden_size
420
+ strides = config.upsampling_ratios
421
+
422
+ # Add first conv layer
423
+ self.conv1 = nn.Conv1d(input_channel, channels, kernel_size=7, padding=3)
424
+
425
+ # Add upsampling + MRF blocks
426
+ block = []
427
+ for stride_index, stride in enumerate(strides):
428
+ block += [DacDecoderBlock(config, stride, stride_index)]
429
+
430
+ self.block = nn.ModuleList(block)
431
+ output_dim = config.decoder_hidden_size // 2 ** (stride_index + 1)
432
+ self.snake1 = Snake1d(output_dim)
433
+ self.conv2 = nn.Conv1d(output_dim, 1, kernel_size=7, padding=3)
434
+ self.tanh = nn.Tanh()
435
+
436
+ def forward(self, hidden_state):
437
+ hidden_state = self.conv1(hidden_state)
438
+
439
+ for layer in self.block:
440
+ hidden_state = layer(hidden_state)
441
+
442
+ hidden_state = self.snake1(hidden_state)
443
+ hidden_state = self.conv2(hidden_state)
444
+ hidden_state = self.tanh(hidden_state)
445
+
446
+ return hidden_state
447
+
448
+
449
+ class DacEncoder(nn.Module):
450
+ """DAC Encoder"""
451
+
452
+ def __init__(self, config: DacConfig):
453
+ super().__init__()
454
+
455
+ strides = config.downsampling_ratios
456
+ # Create first convolution
457
+ self.conv1 = nn.Conv1d(1, config.encoder_hidden_size, kernel_size=7, padding=3)
458
+
459
+ self.block = []
460
+ # Create EncoderBlocks that double channels as they downsample by `stride`
461
+ for stride_index, stride in enumerate(strides):
462
+ stride_index = stride_index + 1
463
+ self.block += [DacEncoderBlock(config, stride=stride, stride_index=stride_index)]
464
+
465
+ self.block = nn.ModuleList(self.block)
466
+ d_model = config.encoder_hidden_size * 2**stride_index
467
+ self.snake1 = Snake1d(d_model)
468
+ self.conv2 = nn.Conv1d(d_model, config.hidden_size, kernel_size=3, padding=1)
469
+
470
+ def forward(self, hidden_state):
471
+ hidden_state = self.conv1(hidden_state)
472
+
473
+ for module in self.block:
474
+ hidden_state = module(hidden_state)
475
+
476
+ hidden_state = self.snake1(hidden_state)
477
+ hidden_state = self.conv2(hidden_state)
478
+
479
+ return hidden_state
480
+
481
+
482
+ class DacPreTrainedModel(PreTrainedModel):
483
+ """
484
+ An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained models.
485
+ """
486
+
487
+ config_class = DacConfig
488
+ base_model_prefix = "dac"
489
+ main_input_name = "input_values"
490
+
491
+ def _init_weights(self, module):
492
+ if isinstance(module, nn.Conv1d):
493
+ nn.init.trunc_normal_(module.weight, std=0.02)
494
+ nn.init.constant_(module.bias, 0)
495
+
496
+ def apply_weight_norm(self):
497
+ weight_norm = nn.utils.weight_norm
498
+ if hasattr(nn.utils.parametrizations, "weight_norm"):
499
+ weight_norm = nn.utils.parametrizations.weight_norm
500
+
501
+ for layer in self.quantizer.quantizers:
502
+ weight_norm(layer.in_proj)
503
+ weight_norm(layer.out_proj)
504
+
505
+ weight_norm(self.encoder.conv1)
506
+ weight_norm(self.encoder.conv2)
507
+
508
+ for layer in self.encoder.block:
509
+ weight_norm(layer.conv1)
510
+ weight_norm(layer.res_unit1.conv1)
511
+ weight_norm(layer.res_unit1.conv2)
512
+ weight_norm(layer.res_unit2.conv1)
513
+ weight_norm(layer.res_unit2.conv2)
514
+ weight_norm(layer.res_unit3.conv1)
515
+ weight_norm(layer.res_unit3.conv2)
516
+
517
+ weight_norm(self.decoder.conv1)
518
+ weight_norm(self.decoder.conv2)
519
+
520
+ for layer in self.decoder.block:
521
+ weight_norm(layer.conv_t1)
522
+ weight_norm(layer.res_unit1.conv1)
523
+ weight_norm(layer.res_unit1.conv2)
524
+ weight_norm(layer.res_unit2.conv1)
525
+ weight_norm(layer.res_unit2.conv2)
526
+ weight_norm(layer.res_unit3.conv1)
527
+ weight_norm(layer.res_unit3.conv2)
528
+
529
+ def remove_weight_norm(self):
530
+ for layer in self.quantizer.quantizers:
531
+ nn.utils.remove_weight_norm(layer.in_proj)
532
+ nn.utils.remove_weight_norm(layer.out_proj)
533
+
534
+ nn.utils.remove_weight_norm(self.encoder.conv1)
535
+ nn.utils.remove_weight_norm(self.encoder.conv2)
536
+
537
+ for layer in self.encoder.block:
538
+ nn.utils.remove_weight_norm(layer.conv1)
539
+ nn.utils.remove_weight_norm(layer.res_unit1.conv1)
540
+ nn.utils.remove_weight_norm(layer.res_unit1.conv2)
541
+ nn.utils.remove_weight_norm(layer.res_unit2.conv1)
542
+ nn.utils.remove_weight_norm(layer.res_unit2.conv2)
543
+ nn.utils.remove_weight_norm(layer.res_unit3.conv1)
544
+ nn.utils.remove_weight_norm(layer.res_unit3.conv2)
545
+
546
+ nn.utils.remove_weight_norm(self.decoder.conv1)
547
+ nn.utils.remove_weight_norm(self.decoder.conv2)
548
+
549
+ for layer in self.decoder.block:
550
+ nn.utils.remove_weight_norm(layer.conv_t1)
551
+ nn.utils.remove_weight_norm(layer.res_unit1.conv1)
552
+ nn.utils.remove_weight_norm(layer.res_unit1.conv2)
553
+ nn.utils.remove_weight_norm(layer.res_unit2.conv1)
554
+ nn.utils.remove_weight_norm(layer.res_unit2.conv2)
555
+ nn.utils.remove_weight_norm(layer.res_unit3.conv1)
556
+ nn.utils.remove_weight_norm(layer.res_unit3.conv2)
557
+
558
+
559
+ DAC_START_DOCSTRING = r"""
560
+ This model inherits from [`PreTrainedModel`]. Check the superclass documentation for the generic methods the
561
+ library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads
562
+ etc.)
563
+
564
+ This model is also a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass.
565
+ Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage
566
+ and behavior.
567
+
568
+ Parameters:
569
+ config ([`DacConfig`]):
570
+ Model configuration class with all the parameters of the model. Initializing with a config file does not
571
+ load the weights associated with the model, only the configuration. Check out the
572
+ [`~PreTrainedModel.from_pretrained`] method to load the model weights.
573
+ """
574
+
575
+ DAC_INPUTS_DOCSTRING = r"""
576
+ Args:
577
+ input_values (`torch.Tensor` of shape `(batch_size, 1, time_steps)`).
578
+ Audio data to encode,
579
+ n_quantizers (`int`, *optional*):
580
+ Number of quantizers to use. If `None`, all quantizers are used. Default is `None`.
581
+ return_dict (`bool`, *optional*):
582
+ Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
583
+ """
584
+
585
+
586
+ @add_start_docstrings(
587
+ "The DAC (Descript Audio Codec) model.",
588
+ DAC_START_DOCSTRING,
589
+ )
590
+ class DacModel(DacPreTrainedModel):
591
+ def __init__(self, config: DacConfig):
592
+ super().__init__(config)
593
+ self.config = config
594
+
595
+ self.encoder = DacEncoder(config)
596
+ self.decoder = DacDecoder(config)
597
+
598
+ self.quantizer = DacResidualVectorQuantize(config)
599
+
600
+ self.bits_per_codebook = int(math.log2(self.config.codebook_size))
601
+ if 2**self.bits_per_codebook != self.config.codebook_size:
602
+ raise ValueError("The codebook_size must be a power of 2.")
603
+
604
+ # Initialize weights and apply final processing
605
+ self.post_init()
606
+
607
+ @replace_return_docstrings(output_type=DacEncoderOutput, config_class=_CONFIG_FOR_DOC)
608
+ def encode(
609
+ self,
610
+ input_values: torch.Tensor,
611
+ n_quantizers: int = None,
612
+ return_dict: Optional[bool] = None,
613
+ ):
614
+ """
615
+ Encode given audio data and return quantized latent codes
616
+
617
+ Args:
618
+ input_values (`torch.Tensor of shape `(batch_size, 1, time_steps)`):
619
+ Input audio data to encode,
620
+ n_quantizers (int, *optional*):
621
+ Number of quantizers to use. If None, all quantizers are used. Default is None.
622
+ return_dict (`bool`, *optional*):
623
+ Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
624
+ Returns:
625
+
626
+ """
627
+ return_dict = return_dict if return_dict is not None else self.config.return_dict
628
+
629
+ quantized_representation = self.encoder(input_values)
630
+ quantized_representation, audio_codes, projected_latents, commitment_loss, codebook_loss = self.quantizer(
631
+ quantized_representation, n_quantizers
632
+ )
633
+
634
+ loss = self.config.commitment_loss_weight * commitment_loss + self.config.codebook_loss_weight * codebook_loss
635
+
636
+ if not return_dict:
637
+ return (loss, quantized_representation, audio_codes, projected_latents)
638
+
639
+ return DacEncoderOutput(loss, quantized_representation, audio_codes, projected_latents)
640
+
641
+ @replace_return_docstrings(output_type=DacDecoderOutput, config_class=_CONFIG_FOR_DOC)
642
+ def decode(
643
+ self,
644
+ quantized_representation: Optional[torch.Tensor] = None,
645
+ audio_codes: Optional[torch.Tensor] = None,
646
+ return_dict: Optional[bool] = None,
647
+ ):
648
+ """Decode given latent codes and return audio data
649
+
650
+ Args:
651
+ quantized_representation (torch.Tensor of shape `(batch_size, dimension, time_steps)`, *optional*):
652
+ Quantized continuous representation of input.
653
+ audio_codes (`torch.Tensor` of shape `(batch_size, num_codebooks, time_steps)`, *optional*):
654
+ The codebook indices for each codebook, representing the quantized discrete
655
+ representation of the input. This parameter should be provided if you want
656
+ to decode directly from the audio codes (it will overwrite quantized_representation).
657
+ return_dict (`bool`, *optional*):
658
+ Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
659
+
660
+ Returns:
661
+
662
+ """
663
+
664
+ if quantized_representation is None and audio_codes is None:
665
+ raise ValueError("Either `quantized_representation` or `audio_codes` must be provided.")
666
+
667
+ return_dict = return_dict if return_dict is not None else self.config.return_dict
668
+
669
+ if audio_codes is not None:
670
+ quantized_representation = self.quantizer.from_codes(audio_codes)[0]
671
+
672
+ audio_values = self.decoder(quantized_representation).squeeze(1)
673
+
674
+ if not return_dict:
675
+ return (audio_values,)
676
+
677
+ return DacDecoderOutput(audio_values)
678
+
679
+ @add_start_docstrings_to_model_forward(DAC_INPUTS_DOCSTRING)
680
+ @replace_return_docstrings(output_type=DacOutput, config_class=_CONFIG_FOR_DOC)
681
+ def forward(
682
+ self,
683
+ input_values: torch.Tensor,
684
+ n_quantizers: int = None,
685
+ return_dict: Optional[bool] = None,
686
+ ):
687
+ """
688
+ Returns:
689
+ Examples:
690
+
691
+ ```python
692
+ >>> from datasets import load_dataset, Audio
693
+ >>> from transformers import DacModel, AutoProcessor
694
+ >>> librispeech_dummy = load_dataset("hf-internal-testing/librispeech_asr_dummy", "clean", split="validation")
695
+
696
+ >>> model = DacModel.from_pretrained("descript/dac_16khz")
697
+ >>> processor = AutoProcessor.from_pretrained("descript/dac_16khz")
698
+ >>> librispeech_dummy = librispeech_dummy.cast_column("audio", Audio(sampling_rate=processor.sampling_rate))
699
+ >>> audio_sample = librispeech_dummy[-1]["audio"]["array"]
700
+ >>> inputs = processor(raw_audio=audio_sample, sampling_rate=processor.sampling_rate, return_tensors="pt")
701
+
702
+ >>> encoder_outputs = model.encode(inputs["input_values"])
703
+ >>> # Get the intermediate audio codes
704
+ >>> audio_codes = encoder_outputs.audio_codes
705
+ >>> # Reconstruct the audio from its quantized representation
706
+ >>> audio_values = model.decode(encoder_outputs.quantized_representation)
707
+ >>> # or the equivalent with a forward pass
708
+ >>> audio_values = model(inputs["input_values"]).audio_values
709
+ ```"""
710
+
711
+ return_dict = return_dict if return_dict is not None else self.config.return_dict
712
+ length = input_values.shape[-1]
713
+ loss, quantized_representation, audio_codes, projected_latents = self.encode(
714
+ input_values, n_quantizers, return_dict=False
715
+ )
716
+ audio_values = self.decode(quantized_representation, return_dict=False)[0][..., :length]
717
+
718
+ if not return_dict:
719
+ return (loss, audio_values, quantized_representation, audio_codes, projected_latents)
720
+
721
+ return DacOutput(loss, audio_values, quantized_representation, audio_codes, projected_latents)
722
+
723
+
724
+ __all__ = ["DacModel", "DacPreTrainedModel"]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/data2vec/__init__.py ADDED
@@ -0,0 +1,32 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # Copyright 2024 The HuggingFace Team. All rights reserved.
2
+ #
3
+ # Licensed under the Apache License, Version 2.0 (the "License");
4
+ # you may not use this file except in compliance with the License.
5
+ # You may obtain a copy of the License at
6
+ #
7
+ # http://www.apache.org/licenses/LICENSE-2.0
8
+ #
9
+ # Unless required by applicable law or agreed to in writing, software
10
+ # distributed under the License is distributed on an "AS IS" BASIS,
11
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12
+ # See the License for the specific language governing permissions and
13
+ # limitations under the License.
14
+ from typing import TYPE_CHECKING
15
+
16
+ from ...utils import _LazyModule
17
+ from ...utils.import_utils import define_import_structure
18
+
19
+
20
+ if TYPE_CHECKING:
21
+ from .configuration_data2vec_audio import *
22
+ from .configuration_data2vec_text import *
23
+ from .configuration_data2vec_vision import *
24
+ from .modeling_data2vec_audio import *
25
+ from .modeling_data2vec_text import *
26
+ from .modeling_data2vec_vision import *
27
+ from .modeling_tf_data2vec_vision import *
28
+ else:
29
+ import sys
30
+
31
+ _file = globals()["__file__"]
32
+ sys.modules[__name__] = _LazyModule(__name__, _file, define_import_structure(_file), module_spec=__spec__)
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/data2vec/configuration_data2vec_audio.py ADDED
@@ -0,0 +1,288 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2022 The HuggingFace Inc. team. All rights reserved.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """Data2VecText configuration"""
16
+
17
+ import math
18
+
19
+ from ...configuration_utils import PretrainedConfig
20
+ from ...utils import logging
21
+
22
+
23
+ logger = logging.get_logger(__name__)
24
+
25
+
26
+ class Data2VecAudioConfig(PretrainedConfig):
27
+ r"""
28
+ This is the configuration class to store the configuration of a [`Data2VecAudioModel`]. It is used to instantiate
29
+ an Data2VecAudio model according to the specified arguments, defining the model architecture. Instantiating a
30
+ configuration with the defaults will yield a similar configuration to that of the Data2VecAudio
31
+ [facebook/data2vec-audio-base-960h](https://huggingface.co/facebook/data2vec-audio-base-960h) architecture.
32
+
33
+ Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
34
+ documentation from [`PretrainedConfig`] for more information.
35
+
36
+
37
+ Args:
38
+ vocab_size (`int`, *optional*, defaults to 32):
39
+ Vocabulary size of the Data2VecAudio model. Defines the number of different tokens that can be represented
40
+ by the `inputs_ids` passed when calling [`Data2VecAudioModel`] or [`TFData2VecAudioModel`]. Vocabulary size
41
+ of the model. Defines the different tokens that can be represented by the *inputs_ids* passed to the
42
+ forward method of [`Data2VecAudioModel`].
43
+ hidden_size (`int`, *optional*, defaults to 768):
44
+ Dimensionality of the encoder layers and the pooler layer.
45
+ num_hidden_layers (`int`, *optional*, defaults to 12):
46
+ Number of hidden layers in the Transformer encoder.
47
+ num_attention_heads (`int`, *optional*, defaults to 12):
48
+ Number of attention heads for each attention layer in the Transformer encoder.
49
+ intermediate_size (`int`, *optional*, defaults to 3072):
50
+ Dimensionality of the "intermediate" (i.e., feed-forward) layer in the Transformer encoder.
51
+ hidden_act (`str` or `function`, *optional*, defaults to `"gelu"`):
52
+ The non-linear activation function (function or string) in the encoder and pooler. If string, `"gelu"`,
53
+ `"relu"`, `"selu"` and `"gelu_new"` are supported.
54
+ hidden_dropout (`float`, *optional*, defaults to 0.1):
55
+ The dropout probability for all fully connected layers in the embeddings, encoder, and pooler.
56
+ activation_dropout (`float`, *optional*, defaults to 0.1):
57
+ The dropout ratio for activations inside the fully connected layer.
58
+ attention_dropout (`float`, *optional*, defaults to 0.1):
59
+ The dropout ratio for the attention probabilities.
60
+ final_dropout (`float`, *optional*, defaults to 0.1):
61
+ The dropout probability for the final projection layer of [`Data2VecAudioForCTC`].
62
+ layerdrop (`float`, *optional*, defaults to 0.1):
63
+ The LayerDrop probability. See the [LayerDrop paper](see https://arxiv.org/abs/1909.11556) for more
64
+ details.
65
+ initializer_range (`float`, *optional*, defaults to 0.02):
66
+ The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
67
+ layer_norm_eps (`float`, *optional*, defaults to 1e-12):
68
+ The epsilon used by the layer normalization layers.
69
+ feat_proj_dropout (`float`, *optional*, defaults to 0.0):
70
+ The dropout probability for output of the feature encoder.
71
+ feat_extract_activation (`str, `optional`, defaults to `"gelu"`):
72
+ The non-linear activation function (function or string) in the 1D convolutional layers of the feature
73
+ extractor. If string, `"gelu"`, `"relu"`, `"selu"` and `"gelu_new"` are supported.
74
+ conv_dim (`Tuple[int]` or `List[int]`, *optional*, defaults to `(512, 512, 512, 512, 512, 512, 512)`):
75
+ A tuple of integers defining the number of input and output channels of each 1D convolutional layer in the
76
+ feature encoder. The length of *conv_dim* defines the number of 1D convolutional layers.
77
+ conv_stride (`Tuple[int]` or `List[int]`, *optional*, defaults to `(5, 2, 2, 2, 2, 2, 2)`):
78
+ A tuple of integers defining the stride of each 1D convolutional layer in the feature encoder. The length
79
+ of *conv_stride* defines the number of convolutional layers and has to match the length of *conv_dim*.
80
+ conv_kernel (`Tuple[int]` or `List[int]`, *optional*, defaults to `(10, 3, 3, 3, 3, 3, 3)`):
81
+ A tuple of integers defining the kernel size of each 1D convolutional layer in the feature encoder. The
82
+ length of *conv_kernel* defines the number of convolutional layers and has to match the length of
83
+ *conv_dim*.
84
+ conv_bias (`bool`, *optional*, defaults to `False`):
85
+ Whether the 1D convolutional layers have a bias.
86
+ num_conv_pos_embeddings (`int`, *optional*, defaults to 128):
87
+ Number of convolutional positional embeddings. Defines the kernel size of 1D convolutional positional
88
+ embeddings layer.
89
+ num_conv_pos_embedding_groups (`int`, *optional*, defaults to 16):
90
+ Number of groups of 1D convolutional positional embeddings layer.
91
+ mask_time_prob (`float`, *optional*, defaults to 0.05):
92
+ Percentage (between 0 and 1) of all feature vectors along the time axis which will be masked. The masking
93
+ procecure generates ''mask_time_prob*len(time_axis)/mask_time_length'' independent masks over the axis. If
94
+ reasoning from the propability of each feature vector to be chosen as the start of the vector span to be
95
+ masked, *mask_time_prob* should be `prob_vector_start*mask_time_length`. Note that overlap may decrease the
96
+ mask_time_length (`int`, *optional*, defaults to 10):
97
+ Length of vector span along the time axis.
98
+ mask_time_min_masks (`int`, *optional*, defaults to 2),:
99
+ The minimum number of masks of length `mask_feature_length` generated along the time axis, each time step,
100
+ irrespectively of `mask_feature_prob`. Only relevant if ''mask_time_prob*len(time_axis)/mask_time_length <
101
+ mask_time_min_masks''
102
+ mask_feature_prob (`float`, *optional*, defaults to 0.0):
103
+ Percentage (between 0 and 1) of all feature vectors along the feature axis which will be masked. The
104
+ masking procecure generates ''mask_feature_prob*len(feature_axis)/mask_time_length'' independent masks over
105
+ the axis. If reasoning from the propability of each feature vector to be chosen as the start of the vector
106
+ span to be masked, *mask_feature_prob* should be `prob_vector_start*mask_feature_length`. Note that overlap
107
+ may decrease the actual percentage of masked vectors. This is only relevant if `apply_spec_augment is
108
+ True`.
109
+ mask_feature_length (`int`, *optional*, defaults to 10):
110
+ Length of vector span along the feature axis.
111
+ mask_feature_min_masks (`int`, *optional*, defaults to 0),:
112
+ The minimum number of masks of length `mask_feature_length` generated along the feature axis, each time
113
+ step, irrespectively of `mask_feature_prob`. Only relevant if
114
+ ''mask_feature_prob*len(feature_axis)/mask_feature_length < mask_feature_min_masks''
115
+ ctc_loss_reduction (`str`, *optional*, defaults to `"sum"`):
116
+ Specifies the reduction to apply to the output of `torch.nn.CTCLoss`. Only relevant when training an
117
+ instance of [`Data2VecAudioForCTC`].
118
+ ctc_zero_infinity (`bool`, *optional*, defaults to `False`):
119
+ Whether to zero infinite losses and the associated gradients of `torch.nn.CTCLoss`. Infinite losses mainly
120
+ occur when the inputs are too short to be aligned to the targets. Only relevant when training an instance
121
+ of [`Data2VecAudioForCTC`].
122
+ use_weighted_layer_sum (`bool`, *optional*, defaults to `False`):
123
+ Whether to use a weighted average of layer outputs with learned weights. Only relevant when using an
124
+ instance of [`Data2VecAudioForSequenceClassification`].
125
+ classifier_proj_size (`int`, *optional*, defaults to 256):
126
+ Dimensionality of the projection before token mean-pooling for classification.
127
+ tdnn_dim (`Tuple[int]` or `List[int]`, *optional*, defaults to `(512, 512, 512, 512, 1500)`):
128
+ A tuple of integers defining the number of output channels of each 1D convolutional layer in the *TDNN*
129
+ module of the *XVector* model. The length of *tdnn_dim* defines the number of *TDNN* layers.
130
+ tdnn_kernel (`Tuple[int]` or `List[int]`, *optional*, defaults to `(5, 3, 3, 1, 1)`):
131
+ A tuple of integers defining the kernel size of each 1D convolutional layer in the *TDNN* module of the
132
+ *XVector* model. The length of *tdnn_kernel* has to match the length of *tdnn_dim*.
133
+ tdnn_dilation (`Tuple[int]` or `List[int]`, *optional*, defaults to `(1, 2, 3, 1, 1)`):
134
+ A tuple of integers defining the dilation factor of each 1D convolutional layer in *TDNN* module of the
135
+ *XVector* model. The length of *tdnn_dilation* has to match the length of *tdnn_dim*.
136
+ xvector_output_dim (`int`, *optional*, defaults to 512):
137
+ Dimensionality of the *XVector* embedding vectors.
138
+ add_adapter (`bool`, *optional*, defaults to `False`):
139
+ Whether a convolutional network should be stacked on top of the Data2VecAudio Encoder. Can be very useful
140
+ for warm-starting Data2VecAudio for SpeechEncoderDecoder models.
141
+ adapter_kernel_size (`int`, *optional*, defaults to 3):
142
+ Kernel size of the convolutional layers in the adapter network. Only relevant if `add_adapter is True`.
143
+ adapter_stride (`int`, *optional*, defaults to 2):
144
+ Stride of the convolutional layers in the adapter network. Only relevant if `add_adapter is True`.
145
+ num_adapter_layers (`int`, *optional*, defaults to 3):
146
+ Number of convolutional layers that should be used in the adapter network. Only relevant if `add_adapter is
147
+ True`.
148
+ output_hidden_size (`int`, *optional*):
149
+ Dimensionality of the encoder output layer. If not defined, this defaults to *hidden-size*. Only relevant
150
+ if `add_adapter is True`.
151
+
152
+ Example:
153
+
154
+ ```python
155
+ >>> from transformers import Data2VecAudioConfig, Data2VecAudioModel
156
+
157
+ >>> # Initializing a Data2VecAudio facebook/data2vec-audio-base-960h style configuration
158
+ >>> configuration = Data2VecAudioConfig()
159
+
160
+ >>> # Initializing a model (with random weights) from the facebook/data2vec-audio-base-960h style configuration
161
+ >>> model = Data2VecAudioModel(configuration)
162
+
163
+ >>> # Accessing the model configuration
164
+ >>> configuration = model.config
165
+ ```"""
166
+
167
+ model_type = "data2vec-audio"
168
+
169
+ def __init__(
170
+ self,
171
+ vocab_size=32,
172
+ hidden_size=768,
173
+ num_hidden_layers=12,
174
+ num_attention_heads=12,
175
+ intermediate_size=3072,
176
+ hidden_act="gelu",
177
+ hidden_dropout=0.1,
178
+ activation_dropout=0.1,
179
+ attention_dropout=0.1,
180
+ feat_proj_dropout=0.0,
181
+ final_dropout=0.1,
182
+ layerdrop=0.1,
183
+ initializer_range=0.02,
184
+ layer_norm_eps=1e-5,
185
+ feat_extract_activation="gelu",
186
+ conv_dim=(512, 512, 512, 512, 512, 512, 512),
187
+ conv_stride=(5, 2, 2, 2, 2, 2, 2),
188
+ conv_kernel=(10, 3, 3, 3, 3, 2, 2),
189
+ conv_bias=False,
190
+ num_conv_pos_embedding_groups=16,
191
+ conv_pos_kernel_size=19,
192
+ num_conv_pos_embeddings=5,
193
+ mask_time_prob=0.05,
194
+ mask_time_length=10,
195
+ mask_time_min_masks=2,
196
+ mask_feature_prob=0.0,
197
+ mask_feature_length=10,
198
+ mask_feature_min_masks=0,
199
+ ctc_loss_reduction="sum",
200
+ ctc_zero_infinity=False,
201
+ use_weighted_layer_sum=False,
202
+ classifier_proj_size=256,
203
+ tdnn_dim=(512, 512, 512, 512, 1500),
204
+ tdnn_kernel=(5, 3, 3, 1, 1),
205
+ tdnn_dilation=(1, 2, 3, 1, 1),
206
+ xvector_output_dim=512,
207
+ pad_token_id=0,
208
+ bos_token_id=1,
209
+ eos_token_id=2,
210
+ add_adapter=False,
211
+ adapter_kernel_size=3,
212
+ adapter_stride=2,
213
+ num_adapter_layers=3,
214
+ output_hidden_size=None,
215
+ **kwargs,
216
+ ):
217
+ super().__init__(**kwargs, pad_token_id=pad_token_id, bos_token_id=bos_token_id, eos_token_id=eos_token_id)
218
+ self.hidden_size = hidden_size
219
+ self.feat_extract_activation = feat_extract_activation
220
+ self.conv_dim = list(conv_dim)
221
+ self.conv_stride = list(conv_stride)
222
+ self.conv_kernel = list(conv_kernel)
223
+ self.conv_bias = conv_bias
224
+ self.num_conv_pos_embeddings = num_conv_pos_embeddings
225
+ self.num_conv_pos_embedding_groups = num_conv_pos_embedding_groups
226
+ self.conv_pos_kernel_size = conv_pos_kernel_size
227
+ self.num_feat_extract_layers = len(self.conv_dim)
228
+ self.num_hidden_layers = num_hidden_layers
229
+ self.intermediate_size = intermediate_size
230
+ self.hidden_act = hidden_act
231
+ self.num_attention_heads = num_attention_heads
232
+ self.hidden_dropout = hidden_dropout
233
+ self.attention_dropout = attention_dropout
234
+ self.activation_dropout = activation_dropout
235
+ self.feat_proj_dropout = feat_proj_dropout
236
+ self.final_dropout = final_dropout
237
+ self.layerdrop = layerdrop
238
+ self.layer_norm_eps = layer_norm_eps
239
+ self.initializer_range = initializer_range
240
+ self.vocab_size = vocab_size
241
+ self.use_weighted_layer_sum = use_weighted_layer_sum
242
+
243
+ if (
244
+ (len(self.conv_stride) != self.num_feat_extract_layers)
245
+ or (len(self.conv_kernel) != self.num_feat_extract_layers)
246
+ or (len(self.conv_dim) != self.num_feat_extract_layers)
247
+ ):
248
+ raise ValueError(
249
+ "Configuration for convolutional layers is incorrect. It is required that `len(config.conv_dim)` =="
250
+ " `len(config.conv_stride)` == `len(config.conv_kernel)`, but is `len(config.conv_dim) ="
251
+ f" {len(self.conv_dim)}`, `len(config.conv_stride) = {len(self.conv_stride)}`,"
252
+ f" `len(config.conv_kernel) = {len(self.conv_kernel)}`."
253
+ )
254
+
255
+ # fine-tuning config parameters for SpecAugment: https://arxiv.org/abs/1904.08779
256
+ self.mask_time_prob = mask_time_prob
257
+ self.mask_time_length = mask_time_length
258
+ self.mask_time_min_masks = mask_time_min_masks
259
+ self.mask_feature_prob = mask_feature_prob
260
+ self.mask_feature_length = mask_feature_length
261
+ self.mask_feature_min_masks = mask_feature_min_masks
262
+
263
+ # ctc loss
264
+ self.ctc_loss_reduction = ctc_loss_reduction
265
+ self.ctc_zero_infinity = ctc_zero_infinity
266
+
267
+ # adapter
268
+ self.add_adapter = add_adapter
269
+ self.adapter_kernel_size = adapter_kernel_size
270
+ self.adapter_stride = adapter_stride
271
+ self.num_adapter_layers = num_adapter_layers
272
+ self.output_hidden_size = output_hidden_size or hidden_size
273
+
274
+ # SequenceClassification-specific parameter. Feel free to ignore for other classes.
275
+ self.classifier_proj_size = classifier_proj_size
276
+
277
+ # XVector-specific parameters. Feel free to ignore for other classes.
278
+ self.tdnn_dim = list(tdnn_dim)
279
+ self.tdnn_kernel = list(tdnn_kernel)
280
+ self.tdnn_dilation = list(tdnn_dilation)
281
+ self.xvector_output_dim = xvector_output_dim
282
+
283
+ @property
284
+ def inputs_to_logits_ratio(self):
285
+ return math.prod(self.conv_stride)
286
+
287
+
288
+ __all__ = ["Data2VecAudioConfig"]
tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/data2vec/configuration_data2vec_text.py ADDED
@@ -0,0 +1,154 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2022 The HuggingFace Inc. team. All rights reserved.
3
+ #
4
+ # Licensed under the Apache License, Version 2.0 (the "License");
5
+ # you may not use this file except in compliance with the License.
6
+ # You may obtain a copy of the License at
7
+ #
8
+ # http://www.apache.org/licenses/LICENSE-2.0
9
+ #
10
+ # Unless required by applicable law or agreed to in writing, software
11
+ # distributed under the License is distributed on an "AS IS" BASIS,
12
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
+ # See the License for the specific language governing permissions and
14
+ # limitations under the License.
15
+ """Data2VecText configuration"""
16
+
17
+ from collections import OrderedDict
18
+ from typing import Mapping
19
+
20
+ from ...configuration_utils import PretrainedConfig
21
+ from ...onnx import OnnxConfig
22
+ from ...utils import logging
23
+
24
+
25
+ logger = logging.get_logger(__name__)
26
+
27
+
28
+ class Data2VecTextConfig(PretrainedConfig):
29
+ r"""
30
+ This is the configuration class to store the configuration of a [`Data2VecTextModel`] and [`Data2VecTextModel`]. It
31
+ is used to instantiate a Data2VecText model according to the specified arguments, defining the model architecture.
32
+ Instantiating a configuration with the defaults will yield a similar configuration to that of the Data2VecText
33
+ [facebook/data2vec-text-base](https://huggingface.co/facebook/data2vec-text-base) architecture.
34
+
35
+ Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
36
+ documentation from [`PretrainedConfig`] for more information.
37
+
38
+
39
+ Args:
40
+ vocab_size (`int`, *optional*, defaults to 30522):
41
+ Vocabulary size of the DATA2VEC model. Defines the number of different tokens that can be represented by
42
+ the `inputs_ids` passed when calling [`Data2VecModel`].
43
+ hidden_size (`int`, *optional*, defaults to 768):
44
+ Dimensionality of the encoder layers and the pooler layer.
45
+ num_hidden_layers (`int`, *optional*, defaults to 12):
46
+ Number of hidden layers in the Transformer encoder.
47
+ num_attention_heads (`int`, *optional*, defaults to 12):
48
+ Number of attention heads for each attention layer in the Transformer encoder.
49
+ intermediate_size (`int`, *optional*, defaults to 3072):
50
+ Dimensionality of the "intermediate" (often named feed-forward) layer in the Transformer encoder.
51
+ hidden_act (`str` or `Callable`, *optional*, defaults to `"gelu"`):
52
+ The non-linear activation function (function or string) in the encoder and pooler. If string, `"gelu"`,
53
+ `"relu"`, `"silu"` and `"gelu_new"` are supported.
54
+ hidden_dropout_prob (`float`, *optional*, defaults to 0.1):
55
+ The dropout probability for all fully connected layers in the embeddings, encoder, and pooler.
56
+ attention_probs_dropout_prob (`float`, *optional*, defaults to 0.1):
57
+ The dropout ratio for the attention probabilities.
58
+ max_position_embeddings (`int`, *optional*, defaults to 512):
59
+ The maximum sequence length that this model might ever be used with. Typically set this to something large
60
+ just in case (e.g., 512 or 1024 or 2048).
61
+ type_vocab_size (`int`, *optional*, defaults to 2):
62
+ The vocabulary size of the `token_type_ids` passed when calling [`Data2VecModel`].
63
+ initializer_range (`float`, *optional*, defaults to 0.02):
64
+ The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
65
+ layer_norm_eps (`float`, *optional*, defaults to 1e-12):
66
+ The epsilon used by the layer normalization layers.
67
+ position_embedding_type (`str`, *optional*, defaults to `"absolute"`):
68
+ Type of position embedding. Choose one of `"absolute"`, `"relative_key"`, `"relative_key_query"`. For
69
+ positional embeddings use `"absolute"`. For more information on `"relative_key"`, please refer to
70
+ [Self-Attention with Relative Position Representations (Shaw et al.)](https://arxiv.org/abs/1803.02155).
71
+ For more information on `"relative_key_query"`, please refer to *Method 4* in [Improve Transformer Models
72
+ with Better Relative Position Embeddings (Huang et al.)](https://arxiv.org/abs/2009.13658).
73
+ is_decoder (`bool`, *optional*, defaults to `False`):
74
+ Whether the model is used as a decoder or not. If `False`, the model is used as an encoder.
75
+ use_cache (`bool`, *optional*, defaults to `True`):
76
+ Whether or not the model should return the last key/values attentions (not used by all models). Only
77
+ relevant if `config.is_decoder=True`.
78
+ classifier_dropout (`float`, *optional*):
79
+ The dropout ratio for the classification head.
80
+
81
+ Examples:
82
+
83
+ ```python
84
+ >>> from transformers import Data2VecTextConfig, Data2VecTextModel
85
+
86
+ >>> # Initializing a Data2VecText facebook/data2vec-text-base style configuration
87
+ >>> configuration = Data2VecTextConfig()
88
+
89
+ >>> # Initializing a model (with random weights) from the facebook/data2vec-text-base style configuration
90
+ >>> model = Data2VecTextModel(configuration)
91
+
92
+ >>> # Accessing the model configuration
93
+ >>> configuration = model.config
94
+ ```"""
95
+
96
+ model_type = "data2vec-text"
97
+
98
+ def __init__(
99
+ self,
100
+ vocab_size=30522,
101
+ hidden_size=768,
102
+ num_hidden_layers=12,
103
+ num_attention_heads=12,
104
+ intermediate_size=3072,
105
+ hidden_act="gelu",
106
+ hidden_dropout_prob=0.1,
107
+ attention_probs_dropout_prob=0.1,
108
+ max_position_embeddings=512,
109
+ type_vocab_size=2,
110
+ initializer_range=0.02,
111
+ layer_norm_eps=1e-12,
112
+ pad_token_id=1,
113
+ bos_token_id=0,
114
+ eos_token_id=2,
115
+ position_embedding_type="absolute",
116
+ use_cache=True,
117
+ classifier_dropout=None,
118
+ **kwargs,
119
+ ):
120
+ super().__init__(pad_token_id=pad_token_id, bos_token_id=bos_token_id, eos_token_id=eos_token_id, **kwargs)
121
+
122
+ self.vocab_size = vocab_size
123
+ self.hidden_size = hidden_size
124
+ self.num_hidden_layers = num_hidden_layers
125
+ self.num_attention_heads = num_attention_heads
126
+ self.hidden_act = hidden_act
127
+ self.intermediate_size = intermediate_size
128
+ self.hidden_dropout_prob = hidden_dropout_prob
129
+ self.attention_probs_dropout_prob = attention_probs_dropout_prob
130
+ self.max_position_embeddings = max_position_embeddings
131
+ self.type_vocab_size = type_vocab_size
132
+ self.initializer_range = initializer_range
133
+ self.layer_norm_eps = layer_norm_eps
134
+ self.position_embedding_type = position_embedding_type
135
+ self.use_cache = use_cache
136
+ self.classifier_dropout = classifier_dropout
137
+
138
+
139
+ class Data2VecTextOnnxConfig(OnnxConfig):
140
+ @property
141
+ def inputs(self) -> Mapping[str, Mapping[int, str]]:
142
+ if self.task == "multiple-choice":
143
+ dynamic_axis = {0: "batch", 1: "choice", 2: "sequence"}
144
+ else:
145
+ dynamic_axis = {0: "batch", 1: "sequence"}
146
+ return OrderedDict(
147
+ [
148
+ ("input_ids", dynamic_axis),
149
+ ("attention_mask", dynamic_axis),
150
+ ]
151
+ )
152
+
153
+
154
+ __all__ = ["Data2VecTextConfig", "Data2VecTextOnnxConfig"]