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  1. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/speech_to_text_2/modeling_speech_to_text_2.py +923 -0
  2. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/speech_to_text_2/processing_speech_to_text_2.py +116 -0
  3. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/speech_to_text_2/tokenization_speech_to_text_2.py +249 -0
  4. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/tapex/__init__.py +29 -0
  5. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/tapex/tokenization_tapex.py +1467 -0
  6. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/trajectory_transformer/__init__.py +57 -0
  7. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/trajectory_transformer/configuration_trajectory_transformer.py +152 -0
  8. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/trajectory_transformer/convert_trajectory_transformer_original_pytorch_checkpoint_to_pytorch.py +70 -0
  9. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/trajectory_transformer/modeling_trajectory_transformer.py +603 -0
  10. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/transfo_xl/__init__.py +93 -0
  11. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/transfo_xl/configuration_transfo_xl.py +186 -0
  12. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/transfo_xl/convert_transfo_xl_original_tf_checkpoint_to_pytorch.py +121 -0
  13. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/transfo_xl/modeling_tf_transfo_xl.py +1119 -0
  14. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/transfo_xl/modeling_tf_transfo_xl_utilities.py +178 -0
  15. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/transfo_xl/modeling_transfo_xl.py +1293 -0
  16. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/transfo_xl/modeling_transfo_xl_utilities.py +251 -0
  17. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/transfo_xl/tokenization_transfo_xl.py +818 -0
  18. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/tvlt/__init__.py +86 -0
  19. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/tvlt/configuration_tvlt.py +184 -0
  20. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/tvlt/feature_extraction_tvlt.py +230 -0
  21. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/tvlt/image_processing_tvlt.py +435 -0
  22. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/tvlt/modeling_tvlt.py +1288 -0
  23. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/tvlt/processing_tvlt.py +89 -0
  24. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/van/__init__.py +52 -0
  25. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/van/configuration_van.py +107 -0
  26. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/van/convert_van_to_pytorch.py +290 -0
  27. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/van/modeling_van.py +536 -0
  28. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/vit_hybrid/__init__.py +69 -0
  29. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/vit_hybrid/configuration_vit_hybrid.py +169 -0
  30. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/vit_hybrid/convert_vit_hybrid_timm_to_pytorch.py +282 -0
  31. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/vit_hybrid/image_processing_vit_hybrid.py +338 -0
  32. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/vit_hybrid/modeling_vit_hybrid.py +767 -0
  33. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/xlm_prophetnet/__init__.py +76 -0
  34. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/xlm_prophetnet/configuration_xlm_prophetnet.py +178 -0
  35. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/xlm_prophetnet/modeling_xlm_prophetnet.py +0 -0
  36. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/xlm_prophetnet/tokenization_xlm_prophetnet.py +323 -0
  37. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/depth_anything/__init__.py +27 -0
  38. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/depth_anything/configuration_depth_anything.py +168 -0
  39. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/depth_anything/convert_depth_anything_to_hf.py +368 -0
  40. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/depth_anything/modeling_depth_anything.py +468 -0
  41. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/depth_pro/__init__.py +29 -0
  42. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/depth_pro/configuration_depth_pro.py +205 -0
  43. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/depth_pro/convert_depth_pro_weights_to_hf.py +254 -0
  44. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/depth_pro/image_processing_depth_pro.py +389 -0
  45. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/depth_pro/image_processing_depth_pro_fast.py +187 -0
  46. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/depth_pro/modeling_depth_pro.py +1218 -0
  47. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/detr/__init__.py +31 -0
  48. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/detr/configuration_detr.py +289 -0
  49. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/detr/convert_detr_original_pytorch_checkpoint_to_pytorch.py +277 -0
  50. tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/detr/convert_detr_to_pytorch.py +385 -0
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/speech_to_text_2/modeling_speech_to_text_2.py ADDED
@@ -0,0 +1,923 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2021 The Fairseq Authors 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 Speech2Text2 model."""
16
+
17
+ import copy
18
+ import math
19
+ from typing import Optional, Tuple, Union
20
+
21
+ import torch
22
+ from torch import nn
23
+ from torch.nn import CrossEntropyLoss
24
+
25
+ from ....activations import ACT2FN
26
+ from ....modeling_attn_mask_utils import _prepare_4d_attention_mask, _prepare_4d_causal_attention_mask
27
+ from ....modeling_outputs import BaseModelOutputWithPastAndCrossAttentions, CausalLMOutputWithCrossAttentions
28
+ from ....modeling_utils import PreTrainedModel
29
+ from ....utils import add_start_docstrings, logging, replace_return_docstrings
30
+ from .configuration_speech_to_text_2 import Speech2Text2Config
31
+
32
+
33
+ logger = logging.get_logger(__name__)
34
+
35
+ _CONFIG_FOR_DOC = "Speech2Text2Config"
36
+ _CHECKPOINT_FOR_DOC = "facebook/s2t-wav2vec2-large-en-de"
37
+
38
+
39
+ class Speech2Text2SinusoidalPositionalEmbedding(nn.Module):
40
+ """This module produces sinusoidal positional embeddings of any length."""
41
+
42
+ def __init__(self, num_positions: int, embedding_dim: int, padding_idx: Optional[int] = None):
43
+ super().__init__()
44
+ self.offset = 2
45
+ self.embedding_dim = embedding_dim
46
+ self.padding_idx = padding_idx
47
+ self.make_weights(num_positions + self.offset, embedding_dim, padding_idx)
48
+
49
+ def make_weights(self, num_embeddings: int, embedding_dim: int, padding_idx: Optional[int] = None):
50
+ emb_weights = self.get_embedding(num_embeddings, embedding_dim, padding_idx)
51
+ if hasattr(self, "weights"):
52
+ # in forward put the weights on the correct dtype and device of the param
53
+ emb_weights = emb_weights.to(dtype=self.weights.dtype, device=self.weights.device)
54
+
55
+ self.weights = nn.Parameter(emb_weights)
56
+ self.weights.requires_grad = False
57
+ self.weights.detach_()
58
+
59
+ @staticmethod
60
+ def get_embedding(num_embeddings: int, embedding_dim: int, padding_idx: Optional[int] = None):
61
+ """
62
+ Build sinusoidal embeddings. This matches the implementation in tensor2tensor, but differs slightly from the
63
+ description in Section 3.5 of "Attention Is All You Need".
64
+ """
65
+ half_dim = embedding_dim // 2
66
+ emb = math.log(10000) / (half_dim - 1)
67
+ emb = torch.exp(torch.arange(half_dim, dtype=torch.int64).float() * -emb)
68
+ emb = torch.arange(num_embeddings, dtype=torch.int64).float().unsqueeze(1) * emb.unsqueeze(0)
69
+ emb = torch.cat([torch.sin(emb), torch.cos(emb)], dim=1).view(num_embeddings, -1)
70
+ if embedding_dim % 2 == 1:
71
+ # zero pad
72
+ emb = torch.cat([emb, torch.zeros(num_embeddings, 1)], dim=1)
73
+ if padding_idx is not None:
74
+ emb[padding_idx, :] = 0
75
+ return emb.to(torch.get_default_dtype())
76
+
77
+ @torch.no_grad()
78
+ def forward(self, input_ids: torch.Tensor, past_key_values_length: int = 0):
79
+ bsz, seq_len = input_ids.size()
80
+ # Create the position ids from the input token ids. Any padded tokens remain padded.
81
+ position_ids = self.create_position_ids_from_input_ids(input_ids, self.padding_idx, past_key_values_length).to(
82
+ input_ids.device
83
+ )
84
+
85
+ # expand embeddings if needed
86
+ max_pos = self.padding_idx + 1 + seq_len
87
+ if max_pos > self.weights.size(0):
88
+ self.make_weights(max_pos + self.offset, self.embedding_dim, self.padding_idx)
89
+
90
+ return self.weights.index_select(0, position_ids.view(-1)).view(bsz, seq_len, -1).detach()
91
+
92
+ def create_position_ids_from_input_ids(
93
+ self, input_ids: torch.Tensor, padding_idx: int, past_key_values_length: Optional[int] = 0
94
+ ):
95
+ """
96
+ Replace non-padding symbols with their position numbers. Position numbers begin at padding_idx+1. Padding
97
+ symbols are ignored. This is modified from fairseq's `utils.make_positions`.
98
+
99
+ Args:
100
+ x: torch.Tensor x:
101
+ Returns: torch.Tensor
102
+ """
103
+ # The series of casts and type-conversions here are carefully balanced to both work with ONNX export and XLA.
104
+ mask = input_ids.ne(padding_idx).int()
105
+ incremental_indices = (torch.cumsum(mask, dim=1).type_as(mask) + past_key_values_length) * mask
106
+ return incremental_indices.long() + padding_idx
107
+
108
+
109
+ class Speech2Text2Attention(nn.Module):
110
+ """Multi-headed attention from 'Attention Is All You Need' paper"""
111
+
112
+ def __init__(
113
+ self,
114
+ embed_dim: int,
115
+ num_heads: int,
116
+ dropout: float = 0.0,
117
+ is_decoder: bool = False,
118
+ bias: bool = True,
119
+ is_causal: bool = False,
120
+ config: Optional[Speech2Text2Config] = None,
121
+ ):
122
+ super().__init__()
123
+ self.embed_dim = embed_dim
124
+ self.num_heads = num_heads
125
+ self.dropout = dropout
126
+ self.head_dim = embed_dim // num_heads
127
+ self.config = config
128
+
129
+ if (self.head_dim * num_heads) != self.embed_dim:
130
+ raise ValueError(
131
+ f"embed_dim must be divisible by num_heads (got `embed_dim`: {self.embed_dim}"
132
+ f" and `num_heads`: {num_heads})."
133
+ )
134
+ self.scaling = self.head_dim**-0.5
135
+ self.is_decoder = is_decoder
136
+ self.is_causal = is_causal
137
+
138
+ self.k_proj = nn.Linear(embed_dim, embed_dim, bias=bias)
139
+ self.v_proj = nn.Linear(embed_dim, embed_dim, bias=bias)
140
+ self.q_proj = nn.Linear(embed_dim, embed_dim, bias=bias)
141
+ self.out_proj = nn.Linear(embed_dim, embed_dim, bias=bias)
142
+
143
+ def _shape(self, tensor: torch.Tensor, seq_len: int, bsz: int):
144
+ return tensor.view(bsz, seq_len, self.num_heads, self.head_dim).transpose(1, 2).contiguous()
145
+
146
+ def forward(
147
+ self,
148
+ hidden_states: torch.Tensor,
149
+ key_value_states: Optional[torch.Tensor] = None,
150
+ past_key_value: Optional[Tuple[torch.Tensor]] = None,
151
+ attention_mask: Optional[torch.Tensor] = None,
152
+ layer_head_mask: Optional[torch.Tensor] = None,
153
+ output_attentions: bool = False,
154
+ ) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]:
155
+ """Input shape: Batch x Time x Channel"""
156
+
157
+ # if key_value_states are provided this layer is used as a cross-attention layer
158
+ # for the decoder
159
+ is_cross_attention = key_value_states is not None
160
+
161
+ bsz, tgt_len, _ = hidden_states.size()
162
+
163
+ # get query proj
164
+ query_states = self.q_proj(hidden_states) * self.scaling
165
+ # get key, value proj
166
+ # `past_key_value[0].shape[2] == key_value_states.shape[1]`
167
+ # is checking that the `sequence_length` of the `past_key_value` is the same as
168
+ # the provided `key_value_states` to support prefix tuning
169
+ if (
170
+ is_cross_attention
171
+ and past_key_value is not None
172
+ and past_key_value[0].shape[2] == key_value_states.shape[1]
173
+ ):
174
+ # reuse k,v, cross_attentions
175
+ key_states = past_key_value[0]
176
+ value_states = past_key_value[1]
177
+ elif is_cross_attention:
178
+ # cross_attentions
179
+ key_states = self._shape(self.k_proj(key_value_states), -1, bsz)
180
+ value_states = self._shape(self.v_proj(key_value_states), -1, bsz)
181
+ elif past_key_value is not None:
182
+ # reuse k, v, self_attention
183
+ key_states = self._shape(self.k_proj(hidden_states), -1, bsz)
184
+ value_states = self._shape(self.v_proj(hidden_states), -1, bsz)
185
+ key_states = torch.cat([past_key_value[0], key_states], dim=2)
186
+ value_states = torch.cat([past_key_value[1], value_states], dim=2)
187
+ else:
188
+ # self_attention
189
+ key_states = self._shape(self.k_proj(hidden_states), -1, bsz)
190
+ value_states = self._shape(self.v_proj(hidden_states), -1, bsz)
191
+
192
+ if self.is_decoder:
193
+ # if cross_attention save Tuple(torch.Tensor, torch.Tensor) of all cross attention key/value_states.
194
+ # Further calls to cross_attention layer can then reuse all cross-attention
195
+ # key/value_states (first "if" case)
196
+ # if uni-directional self-attention (decoder) save Tuple(torch.Tensor, torch.Tensor) of
197
+ # all previous decoder key/value_states. Further calls to uni-directional self-attention
198
+ # can concat previous decoder key/value_states to current projected key/value_states (third "elif" case)
199
+ # if encoder bi-directional self-attention `past_key_value` is always `None`
200
+ past_key_value = (key_states, value_states)
201
+
202
+ proj_shape = (bsz * self.num_heads, -1, self.head_dim)
203
+ query_states = self._shape(query_states, tgt_len, bsz).view(*proj_shape)
204
+ key_states = key_states.reshape(*proj_shape)
205
+ value_states = value_states.reshape(*proj_shape)
206
+
207
+ src_len = key_states.size(1)
208
+ attn_weights = torch.bmm(query_states, key_states.transpose(1, 2))
209
+
210
+ if attn_weights.size() != (bsz * self.num_heads, tgt_len, src_len):
211
+ raise ValueError(
212
+ f"Attention weights should be of size {(bsz * self.num_heads, tgt_len, src_len)}, but is"
213
+ f" {attn_weights.size()}"
214
+ )
215
+
216
+ if attention_mask is not None:
217
+ if attention_mask.size() != (bsz, 1, tgt_len, src_len):
218
+ raise ValueError(
219
+ f"Attention mask should be of size {(bsz, 1, tgt_len, src_len)}, but is {attention_mask.size()}"
220
+ )
221
+ attn_weights = attn_weights.view(bsz, self.num_heads, tgt_len, src_len) + attention_mask
222
+ attn_weights = attn_weights.view(bsz * self.num_heads, tgt_len, src_len)
223
+
224
+ attn_weights = nn.functional.softmax(attn_weights, dim=-1)
225
+
226
+ if layer_head_mask is not None:
227
+ if layer_head_mask.size() != (self.num_heads,):
228
+ raise ValueError(
229
+ f"Head mask for a single layer should be of size {(self.num_heads,)}, but is"
230
+ f" {layer_head_mask.size()}"
231
+ )
232
+ attn_weights = layer_head_mask.view(1, -1, 1, 1) * attn_weights.view(bsz, self.num_heads, tgt_len, src_len)
233
+ attn_weights = attn_weights.view(bsz * self.num_heads, tgt_len, src_len)
234
+
235
+ if output_attentions:
236
+ # this operation is a bit awkward, but it's required to
237
+ # make sure that attn_weights keeps its gradient.
238
+ # In order to do so, attn_weights have to be reshaped
239
+ # twice and have to be reused in the following
240
+ attn_weights_reshaped = attn_weights.view(bsz, self.num_heads, tgt_len, src_len)
241
+ attn_weights = attn_weights_reshaped.view(bsz * self.num_heads, tgt_len, src_len)
242
+ else:
243
+ attn_weights_reshaped = None
244
+
245
+ attn_probs = nn.functional.dropout(attn_weights, p=self.dropout, training=self.training)
246
+
247
+ attn_output = torch.bmm(attn_probs, value_states)
248
+
249
+ if attn_output.size() != (bsz * self.num_heads, tgt_len, self.head_dim):
250
+ raise ValueError(
251
+ f"`attn_output` should be of size {(bsz * self.num_heads, tgt_len, self.head_dim)}, but is"
252
+ f" {attn_output.size()}"
253
+ )
254
+
255
+ attn_output = attn_output.view(bsz, self.num_heads, tgt_len, self.head_dim)
256
+ attn_output = attn_output.transpose(1, 2)
257
+
258
+ # Use the `embed_dim` from the config (stored in the class) rather than `hidden_state` because `attn_output` can be
259
+ # partitioned across GPUs when using tensor-parallelism.
260
+ attn_output = attn_output.reshape(bsz, tgt_len, self.embed_dim)
261
+
262
+ attn_output = self.out_proj(attn_output)
263
+
264
+ return attn_output, attn_weights_reshaped, past_key_value
265
+
266
+
267
+ class Speech2Text2DecoderLayer(nn.Module):
268
+ def __init__(self, config: Speech2Text2Config):
269
+ super().__init__()
270
+ self.embed_dim = config.d_model
271
+
272
+ self.self_attn = Speech2Text2Attention(
273
+ embed_dim=self.embed_dim,
274
+ num_heads=config.decoder_attention_heads,
275
+ dropout=config.attention_dropout,
276
+ is_decoder=True,
277
+ )
278
+ self.dropout = config.dropout
279
+ self.activation_fn = ACT2FN[config.activation_function]
280
+ self.activation_dropout = config.activation_dropout
281
+
282
+ self.self_attn_layer_norm = nn.LayerNorm(self.embed_dim)
283
+
284
+ if config.is_decoder:
285
+ self.encoder_attn = Speech2Text2Attention(
286
+ self.embed_dim,
287
+ config.decoder_attention_heads,
288
+ dropout=config.attention_dropout,
289
+ is_decoder=True,
290
+ )
291
+ self.encoder_attn_layer_norm = nn.LayerNorm(self.embed_dim)
292
+
293
+ self.fc1 = nn.Linear(self.embed_dim, config.decoder_ffn_dim)
294
+ self.fc2 = nn.Linear(config.decoder_ffn_dim, self.embed_dim)
295
+ self.final_layer_norm = nn.LayerNorm(self.embed_dim)
296
+
297
+ def forward(
298
+ self,
299
+ hidden_states: torch.Tensor,
300
+ attention_mask: Optional[torch.Tensor] = None,
301
+ encoder_hidden_states: Optional[torch.Tensor] = None,
302
+ encoder_attention_mask: Optional[torch.Tensor] = None,
303
+ layer_head_mask: Optional[torch.Tensor] = None,
304
+ cross_attn_layer_head_mask: Optional[torch.Tensor] = None,
305
+ past_key_value: Optional[Tuple[torch.Tensor]] = None,
306
+ output_attentions: Optional[bool] = False,
307
+ use_cache: Optional[bool] = True,
308
+ ):
309
+ """
310
+ Args:
311
+ hidden_states (`torch.FloatTensor`): input to the layer of shape `(batch, seq_len, embed_dim)`
312
+ attention_mask (`torch.FloatTensor`): attention mask of size
313
+ `(batch, 1, tgt_len, src_len)` where padding elements are indicated by very large negative values.
314
+ encoder_hidden_states (`torch.FloatTensor`):
315
+ cross attention input to the layer of shape `(batch, seq_len, embed_dim)`
316
+ encoder_attention_mask (`torch.FloatTensor`): encoder attention mask of size
317
+ `(batch, 1, tgt_len, src_len)` where padding elements are indicated by very large negative values.
318
+ layer_head_mask (`torch.FloatTensor`): mask for attention heads in a given layer of size
319
+ `(encoder_attention_heads,)`.
320
+ cross_attn_layer_head_mask (`torch.FloatTensor`): mask for cross-attention heads in a given layer of
321
+ size *(decoder_attention_heads,)*.
322
+ past_key_value (`Tuple(torch.FloatTensor)`): cached past key and value projection states
323
+ output_attentions (`bool`, *optional*):
324
+ Whether or not to return the attentions tensors of all attention layers. See `attentions` under
325
+ returned tensors for more detail.
326
+ """
327
+ residual = hidden_states
328
+
329
+ # Self Attention
330
+ # decoder uni-directional self-attention cached key/values tuple is at positions 1,2
331
+ self_attn_past_key_value = past_key_value[:2] if past_key_value is not None else None
332
+ # add present self-attn cache to positions 1,2 of present_key_value tuple
333
+ hidden_states, self_attn_weights, present_key_value = self.self_attn(
334
+ hidden_states=hidden_states,
335
+ past_key_value=self_attn_past_key_value,
336
+ attention_mask=attention_mask,
337
+ layer_head_mask=layer_head_mask,
338
+ output_attentions=output_attentions,
339
+ )
340
+ hidden_states = nn.functional.dropout(hidden_states, p=self.dropout, training=self.training)
341
+ hidden_states = residual + hidden_states
342
+ hidden_states = self.self_attn_layer_norm(hidden_states)
343
+
344
+ # Cross-Attention Block
345
+ cross_attn_present_key_value = None
346
+ cross_attn_weights = None
347
+ if encoder_hidden_states is not None:
348
+ residual = hidden_states
349
+
350
+ # cross_attn cached key/values tuple is at positions 3,4 of present_key_value tuple
351
+ cross_attn_past_key_value = past_key_value[-2:] if past_key_value is not None else None
352
+ hidden_states, cross_attn_weights, cross_attn_present_key_value = self.encoder_attn(
353
+ hidden_states=hidden_states,
354
+ key_value_states=encoder_hidden_states,
355
+ attention_mask=encoder_attention_mask,
356
+ layer_head_mask=cross_attn_layer_head_mask,
357
+ past_key_value=cross_attn_past_key_value,
358
+ output_attentions=output_attentions,
359
+ )
360
+ hidden_states = nn.functional.dropout(hidden_states, p=self.dropout, training=self.training)
361
+ hidden_states = residual + hidden_states
362
+ hidden_states = self.encoder_attn_layer_norm(hidden_states)
363
+
364
+ # add cross-attn to positions 3,4 of present_key_value tuple
365
+ present_key_value = present_key_value + cross_attn_present_key_value
366
+
367
+ # Fully Connected
368
+ residual = hidden_states
369
+ hidden_states = self.activation_fn(self.fc1(hidden_states))
370
+ hidden_states = nn.functional.dropout(hidden_states, p=self.activation_dropout, training=self.training)
371
+ hidden_states = self.fc2(hidden_states)
372
+ hidden_states = nn.functional.dropout(hidden_states, p=self.dropout, training=self.training)
373
+ hidden_states = residual + hidden_states
374
+ hidden_states = self.final_layer_norm(hidden_states)
375
+
376
+ outputs = (hidden_states,)
377
+
378
+ if output_attentions:
379
+ outputs += (self_attn_weights, cross_attn_weights)
380
+
381
+ if use_cache:
382
+ outputs += (present_key_value,)
383
+
384
+ return outputs
385
+
386
+
387
+ class Speech2Text2PreTrainedModel(PreTrainedModel):
388
+ config_class = Speech2Text2Config
389
+ base_model_prefix = "model"
390
+ supports_gradient_checkpointing = True
391
+
392
+ def _init_weights(self, module):
393
+ std = self.config.init_std
394
+ if isinstance(module, (nn.Linear, nn.Conv1d)):
395
+ module.weight.data.normal_(mean=0.0, std=std)
396
+ if module.bias is not None:
397
+ module.bias.data.zero_()
398
+ elif isinstance(module, nn.Embedding):
399
+ module.weight.data.normal_(mean=0.0, std=std)
400
+ if module.padding_idx is not None:
401
+ module.weight.data[module.padding_idx].zero_()
402
+
403
+
404
+ SPEECH_TO_TEXT_2_START_DOCSTRING = r"""
405
+ This model inherits from [`PreTrainedModel`]. Check the superclass documentation for the generic methods the
406
+ library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads
407
+ etc.)
408
+
409
+ This model is also a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass.
410
+ Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage
411
+ and behavior.
412
+
413
+ Parameters:
414
+ config ([`Speech2Text2Config`]):
415
+ Model configuration class with all the parameters of the model. Initializing with a config file does not
416
+ load the weights associated with the model, only the configuration. Check out the
417
+ [`~PreTrainedModel.from_pretrained`] method to load the model weights.
418
+ """
419
+
420
+
421
+ class Speech2Text2Decoder(Speech2Text2PreTrainedModel):
422
+ """
423
+ Transformer decoder consisting of *config.decoder_layers* layers. Each layer is a [`Speech2Text2DecoderLayer`]
424
+
425
+ Args:
426
+ config: Speech2Text2Config
427
+ embed_tokens (nn.Embedding): output embedding
428
+ """
429
+
430
+ def __init__(self, config: Speech2Text2Config):
431
+ super().__init__(config)
432
+ self.dropout = config.dropout
433
+ self.layerdrop = config.decoder_layerdrop
434
+ self.padding_idx = config.pad_token_id
435
+ self.max_target_positions = config.max_target_positions
436
+ self.embed_scale = math.sqrt(config.d_model) if config.scale_embedding else 1.0
437
+
438
+ self.embed_tokens = nn.Embedding(config.vocab_size, config.d_model, self.padding_idx)
439
+
440
+ self.embed_positions = Speech2Text2SinusoidalPositionalEmbedding(
441
+ self.max_target_positions,
442
+ config.d_model,
443
+ self.padding_idx,
444
+ )
445
+
446
+ self.layers = nn.ModuleList([Speech2Text2DecoderLayer(config) for _ in range(config.decoder_layers)])
447
+
448
+ self.gradient_checkpointing = False
449
+ # Initialize weights and apply final processing
450
+ self.post_init()
451
+
452
+ def get_input_embeddings(self):
453
+ return self.embed_tokens
454
+
455
+ def set_input_embeddings(self, value):
456
+ self.embed_tokens = value
457
+
458
+ def forward(
459
+ self,
460
+ input_ids=None,
461
+ attention_mask=None,
462
+ encoder_hidden_states=None,
463
+ encoder_attention_mask=None,
464
+ head_mask=None,
465
+ cross_attn_head_mask=None,
466
+ past_key_values=None,
467
+ inputs_embeds=None,
468
+ use_cache=None,
469
+ output_attentions=None,
470
+ output_hidden_states=None,
471
+ return_dict=None,
472
+ ):
473
+ r"""
474
+ Args:
475
+ input_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`):
476
+ Indices of input sequence tokens in the vocabulary. Padding will be ignored by default should you
477
+ provide it.
478
+
479
+ Indices can be obtained using [`Speech2Text2Tokenizer`]. See [`PreTrainedTokenizer.encode`] and
480
+ [`PreTrainedTokenizer.__call__`] for details.
481
+
482
+ [What are input IDs?](../glossary#input-ids)
483
+ attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*):
484
+ Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`:
485
+
486
+ - 1 for tokens that are **not masked**,
487
+ - 0 for tokens that are **masked**.
488
+
489
+ [What are attention masks?](../glossary#attention-mask)
490
+ encoder_hidden_states (`torch.FloatTensor` of shape `(batch_size, encoder_sequence_length, hidden_size)`, *optional*):
491
+ Sequence of hidden-states at the output of the last layer of the encoder. Used in the cross-attention
492
+ of the decoder.
493
+ encoder_attention_mask (`torch.LongTensor` of shape `(batch_size, encoder_sequence_length)`, *optional*):
494
+ Mask to avoid performing cross-attention on padding tokens indices of encoder input_ids. Mask values
495
+ selected in `[0, 1]`:
496
+
497
+ - 1 for tokens that are **not masked**,
498
+ - 0 for tokens that are **masked**.
499
+
500
+ [What are attention masks?](../glossary#attention-mask)
501
+ head_mask (`torch.Tensor` of shape `(decoder_layers, decoder_attention_heads)`, *optional*):
502
+ Mask to nullify selected heads of the attention modules. Mask values selected in `[0, 1]`:
503
+
504
+ - 1 indicates the head is **not masked**,
505
+ - 0 indicates the head is **masked**.
506
+
507
+ cross_attn_head_mask (`torch.Tensor` of shape `(decoder_layers, decoder_attention_heads)`, *optional*):
508
+ Mask to nullify selected heads of the attention modules in encoder to avoid performing cross-attention
509
+ on hidden heads. Mask values selected in `[0, 1]`:
510
+
511
+ - 1 indicates the head is **not masked**,
512
+ - 0 indicates the head is **masked**.
513
+
514
+ past_key_values (`tuple(tuple(torch.FloatTensor))`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`):
515
+ Tuple of `tuple(torch.FloatTensor)` of length `config.n_layers`, with each tuple having 2 tensors of
516
+ shape `(batch_size, num_heads, sequence_length, embed_size_per_head)`) and 2 additional tensors of
517
+ shape `(batch_size, num_heads, encoder_sequence_length, embed_size_per_head)`.
518
+
519
+ Contains pre-computed hidden-states (key and values in the self-attention blocks and in the
520
+ cross-attention blocks) that can be used (see `past_key_values` input) to speed up sequential decoding.
521
+
522
+ If `past_key_values` are used, the user can optionally input only the last `decoder_input_ids` (those
523
+ that don't have their past key value states given to this model) of shape `(batch_size, 1)` instead of
524
+ all `decoder_input_ids` of shape `(batch_size, sequence_length)`.
525
+ inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*):
526
+ Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation.
527
+ This is useful if you want more control over how to convert `input_ids` indices into associated vectors
528
+ than the model's internal embedding lookup matrix.
529
+ output_attentions (`bool`, *optional*):
530
+ Whether or not to return the attentions tensors of all attention layers. See `attentions` under
531
+ returned tensors for more detail.
532
+ output_hidden_states (`bool`, *optional*):
533
+ Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors
534
+ for more detail.
535
+ return_dict (`bool`, *optional*):
536
+ Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
537
+ """
538
+ output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
539
+ output_hidden_states = (
540
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
541
+ )
542
+ use_cache = use_cache if use_cache is not None else self.config.use_cache
543
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
544
+
545
+ # retrieve input_ids and inputs_embeds
546
+ if input_ids is not None and inputs_embeds is not None:
547
+ raise ValueError("You cannot specify both decoder_input_ids and decoder_inputs_embeds at the same time")
548
+ elif input_ids is not None:
549
+ input_shape = input_ids.size()
550
+ input_ids = input_ids.view(-1, input_shape[-1])
551
+ elif inputs_embeds is not None:
552
+ input_shape = inputs_embeds.size()[:-1]
553
+ else:
554
+ raise ValueError("You have to specify either decoder_input_ids or decoder_inputs_embeds")
555
+
556
+ # past_key_values_length
557
+ past_key_values_length = past_key_values[0][0].shape[2] if past_key_values is not None else 0
558
+
559
+ if inputs_embeds is None:
560
+ inputs_embeds = self.embed_tokens(input_ids) * self.embed_scale
561
+
562
+ attention_mask = _prepare_4d_causal_attention_mask(
563
+ attention_mask, input_shape, inputs_embeds, past_key_values_length
564
+ )
565
+
566
+ # expand encoder attention mask
567
+ if encoder_hidden_states is not None and encoder_attention_mask is not None:
568
+ # [bsz, seq_len] -> [bsz, 1, tgt_seq_len, src_seq_len]
569
+ encoder_attention_mask = _prepare_4d_attention_mask(
570
+ encoder_attention_mask, inputs_embeds.dtype, tgt_len=input_shape[-1]
571
+ )
572
+
573
+ # embed positions
574
+ positions = self.embed_positions(input_ids, past_key_values_length=past_key_values_length)
575
+
576
+ hidden_states = inputs_embeds + positions
577
+ hidden_states = nn.functional.dropout(hidden_states, p=self.dropout, training=self.training)
578
+
579
+ if self.gradient_checkpointing and self.training:
580
+ if use_cache:
581
+ logger.warning_once(
582
+ "`use_cache = True` is incompatible with gradient checkpointing. Setting `use_cache =" " False`..."
583
+ )
584
+ use_cache = False
585
+
586
+ # decoder layers
587
+ all_hidden_states = () if output_hidden_states else None
588
+ all_self_attns = () if output_attentions else None
589
+ all_cross_attentions = () if (output_attentions and encoder_hidden_states is not None) else None
590
+ next_decoder_cache = () if use_cache else None
591
+
592
+ # check if head_mask/cross_attn_head_mask has a correct number of layers specified if desired
593
+ for attn_mask, mask_name in zip([head_mask, cross_attn_head_mask], ["head_mask", "cross_attn_head_mask"]):
594
+ if attn_mask is not None:
595
+ if attn_mask.size()[0] != (len(self.layers)):
596
+ raise ValueError(
597
+ f"The `{mask_name}` should be specified for {len(self.layers)} layers, but it is for"
598
+ f" {head_mask.size()[0]}."
599
+ )
600
+ for idx, decoder_layer in enumerate(self.layers):
601
+ # add LayerDrop (see https://arxiv.org/abs/1909.11556 for description)
602
+ if output_hidden_states:
603
+ all_hidden_states += (hidden_states,)
604
+ if self.training:
605
+ dropout_probability = torch.rand([])
606
+ if dropout_probability < self.layerdrop:
607
+ continue
608
+
609
+ past_key_value = past_key_values[idx] if past_key_values is not None else None
610
+
611
+ if self.gradient_checkpointing and self.training:
612
+ layer_outputs = self._gradient_checkpointing_func(
613
+ decoder_layer.__call__,
614
+ hidden_states,
615
+ attention_mask,
616
+ encoder_hidden_states,
617
+ encoder_attention_mask,
618
+ head_mask[idx] if head_mask is not None else None,
619
+ cross_attn_head_mask[idx] if cross_attn_head_mask is not None else None,
620
+ None,
621
+ )
622
+ else:
623
+ layer_outputs = decoder_layer(
624
+ hidden_states,
625
+ attention_mask=attention_mask,
626
+ encoder_hidden_states=encoder_hidden_states,
627
+ encoder_attention_mask=encoder_attention_mask,
628
+ layer_head_mask=(head_mask[idx] if head_mask is not None else None),
629
+ cross_attn_layer_head_mask=(
630
+ cross_attn_head_mask[idx] if cross_attn_head_mask is not None else None
631
+ ),
632
+ past_key_value=past_key_value,
633
+ output_attentions=output_attentions,
634
+ use_cache=use_cache,
635
+ )
636
+ hidden_states = layer_outputs[0]
637
+
638
+ if use_cache:
639
+ next_decoder_cache += (layer_outputs[3 if output_attentions else 1],)
640
+
641
+ if output_attentions:
642
+ all_self_attns += (layer_outputs[1],)
643
+
644
+ if encoder_hidden_states is not None:
645
+ all_cross_attentions += (layer_outputs[2],)
646
+
647
+ # add hidden states from the last decoder layer
648
+ if output_hidden_states:
649
+ all_hidden_states += (hidden_states,)
650
+
651
+ next_cache = next_decoder_cache if use_cache else None
652
+ if not return_dict:
653
+ return tuple(
654
+ v
655
+ for v in [hidden_states, next_cache, all_hidden_states, all_self_attns, all_cross_attentions]
656
+ if v is not None
657
+ )
658
+ return BaseModelOutputWithPastAndCrossAttentions(
659
+ last_hidden_state=hidden_states,
660
+ past_key_values=next_cache,
661
+ hidden_states=all_hidden_states,
662
+ attentions=all_self_attns,
663
+ cross_attentions=all_cross_attentions,
664
+ )
665
+
666
+
667
+ @add_start_docstrings(
668
+ "The Speech2Text2 Model with a language modeling head. Can be used for summarization.",
669
+ SPEECH_TO_TEXT_2_START_DOCSTRING,
670
+ )
671
+ class Speech2Text2DecoderWrapper(Speech2Text2PreTrainedModel):
672
+ """
673
+ This wrapper class is a helper class to correctly load pretrained checkpoints when the causal language model is
674
+ used in combination with the [`EncoderDecoderModel`] framework.
675
+ """
676
+
677
+ def __init__(self, config):
678
+ super().__init__(config)
679
+ self.decoder = Speech2Text2Decoder(config)
680
+
681
+ def forward(self, *args, **kwargs):
682
+ return self.decoder(*args, **kwargs)
683
+
684
+
685
+ @add_start_docstrings(
686
+ "The Speech2Text2 Decoder with a language modeling head. Can be used as the decoder part of"
687
+ " [`EncoderDecoderModel`] and [`SpeechEncoderDecoder`].",
688
+ SPEECH_TO_TEXT_2_START_DOCSTRING,
689
+ )
690
+ class Speech2Text2ForCausalLM(Speech2Text2PreTrainedModel):
691
+ _tied_weights_keys = ["lm_head.weight"]
692
+
693
+ def __init__(self, config):
694
+ config = copy.deepcopy(config)
695
+ config.is_decoder = True
696
+ config.is_encoder_decoder = False
697
+ super().__init__(config)
698
+ self.model = Speech2Text2DecoderWrapper(config)
699
+
700
+ self.lm_head = nn.Linear(config.hidden_size, config.vocab_size, bias=False)
701
+
702
+ # Initialize weights and apply final processing
703
+ self.post_init()
704
+
705
+ def get_input_embeddings(self):
706
+ return self.model.decoder.embed_tokens
707
+
708
+ def set_input_embeddings(self, value):
709
+ self.model.decoder.embed_tokens = value
710
+
711
+ def get_output_embeddings(self):
712
+ return self.lm_head
713
+
714
+ def set_output_embeddings(self, new_embeddings):
715
+ self.lm_head = new_embeddings
716
+
717
+ def set_decoder(self, decoder):
718
+ self.model.decoder = decoder
719
+
720
+ def get_decoder(self):
721
+ return self.model.decoder
722
+
723
+ @replace_return_docstrings(output_type=CausalLMOutputWithCrossAttentions, config_class=_CONFIG_FOR_DOC)
724
+ def forward(
725
+ self,
726
+ input_ids: Optional[torch.LongTensor] = None,
727
+ attention_mask: Optional[torch.Tensor] = None,
728
+ encoder_hidden_states: Optional[torch.FloatTensor] = None,
729
+ encoder_attention_mask: Optional[torch.FloatTensor] = None,
730
+ head_mask: Optional[torch.Tensor] = None,
731
+ cross_attn_head_mask: Optional[torch.Tensor] = None,
732
+ past_key_values: Optional[Tuple[Tuple[torch.FloatTensor]]] = None,
733
+ inputs_embeds: Optional[torch.FloatTensor] = None,
734
+ labels: Optional[torch.LongTensor] = None,
735
+ use_cache: Optional[bool] = None,
736
+ output_attentions: Optional[bool] = None,
737
+ output_hidden_states: Optional[bool] = None,
738
+ return_dict: Optional[bool] = None,
739
+ ) -> Union[Tuple[torch.FloatTensor], CausalLMOutputWithCrossAttentions]:
740
+ r"""
741
+ Args:
742
+ input_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`):
743
+ Indices of input sequence tokens in the vocabulary. Padding will be ignored by default should you
744
+ provide it.
745
+
746
+ Indices can be obtained using [`Speech2Text2Tokenizer`]. See [`PreTrainedTokenizer.encode`] and
747
+ [`PreTrainedTokenizer.__call__`] for details.
748
+
749
+ [What are input IDs?](../glossary#input-ids)
750
+ attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*):
751
+ Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`:
752
+
753
+ - 1 for tokens that are **not masked**,
754
+ - 0 for tokens that are **masked**.
755
+
756
+ [What are attention masks?](../glossary#attention-mask)
757
+ encoder_hidden_states (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*):
758
+ Sequence of hidden-states at the output of the last layer of the encoder. Used in the cross-attention
759
+ if the model is configured as a decoder.
760
+ encoder_attention_mask (`torch.FloatTensor` of shape `(batch_size, sequence_length)`, *optional*):
761
+ Mask to avoid performing attention on the padding token indices of the encoder input. This mask is used
762
+ in the cross-attention if the model is configured as a decoder. Mask values selected in `[0, 1]`:
763
+ head_mask (`torch.Tensor` of shape `(decoder_layers, decoder_attention_heads)`, *optional*):
764
+ Mask to nullify selected heads of the attention modules. Mask values selected in `[0, 1]`:
765
+
766
+ - 1 indicates the head is **not masked**,
767
+ - 0 indicates the head is **masked**.
768
+
769
+ cross_attn_head_mask (`torch.Tensor` of shape `(decoder_layers, decoder_attention_heads)`, *optional*):
770
+ Mask to nullify selected heads of the cross-attention modules. Mask values selected in `[0, 1]`:
771
+
772
+ - 1 indicates the head is **not masked**,
773
+ - 0 indicates the head is **masked**.
774
+
775
+ past_key_values (`tuple(tuple(torch.FloatTensor))`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`):
776
+ Tuple of `tuple(torch.FloatTensor)` of length `config.n_layers`, with each tuple having 2 tensors of
777
+ shape `(batch_size, num_heads, sequence_length, embed_size_per_head)`) and 2 additional tensors of
778
+ shape `(batch_size, num_heads, encoder_sequence_length, embed_size_per_head)`. The two additional
779
+ tensors are only required when the model is used as a decoder in a Sequence to Sequence model.
780
+
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
+
784
+ If `past_key_values` are used, the user can optionally input only the last `decoder_input_ids` (those
785
+ that don't have their past key value states given to this model) of shape `(batch_size, 1)` instead of
786
+ all `decoder_input_ids` of shape `(batch_size, sequence_length)`.
787
+ labels (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*):
788
+ Labels for computing the masked language modeling loss. Indices should either be in `[0, ...,
789
+ config.vocab_size]` or -100 (see `input_ids` docstring). Tokens with indices set to `-100` are ignored
790
+ (masked), the loss is only computed for the tokens with labels in `[0, ..., config.vocab_size]`.
791
+ use_cache (`bool`, *optional*):
792
+ If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding
793
+ (see `past_key_values`).
794
+
795
+ - 1 for tokens that are **not masked**,
796
+ - 0 for tokens that are **masked**.
797
+ output_attentions (`bool`, *optional*):
798
+ Whether or not to return the attentions tensors of all attention layers. See `attentions` under
799
+ returned tensors for more detail.
800
+ output_hidden_states (`bool`, *optional*):
801
+ Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors
802
+ for more detail.
803
+ return_dict (`bool`, *optional*):
804
+ Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
805
+
806
+ Returns:
807
+
808
+ Example:
809
+
810
+ ```python
811
+ >>> from transformers import (
812
+ ... SpeechEncoderDecoderModel,
813
+ ... Speech2Text2ForCausalLM,
814
+ ... Wav2Vec2Model,
815
+ ... Speech2Text2Config,
816
+ ... Wav2Vec2Config,
817
+ ... Wav2Vec2FeatureExtractor,
818
+ ... Speech2Text2Tokenizer,
819
+ ... )
820
+ >>> from datasets import load_dataset
821
+
822
+ >>> feature_extractor = Wav2Vec2FeatureExtractor()
823
+ >>> tokenizer = Speech2Text2Tokenizer.from_pretrained("facebook/s2t-wav2vec2-large-en-de")
824
+
825
+ >>> encoder = Wav2Vec2Model(Wav2Vec2Config())
826
+ >>> decoder = Speech2Text2ForCausalLM(Speech2Text2Config())
827
+ >>> # init random speech2text model
828
+
829
+ >>> model = SpeechEncoderDecoderModel(encoder=encoder, decoder=decoder)
830
+ >>> model.config.pad_token_id = tokenizer.pad_token_id
831
+ >>> model.config.decoder_start_token_id = tokenizer.bos_token_id
832
+ >>> # pre-process inputs and labels
833
+
834
+ >>> ds = load_dataset("hf-internal-testing/librispeech_asr_dummy", "clean", split="validation")
835
+ >>> inputs = feature_extractor(
836
+ ... ds[0]["audio"]["array"], sampling_rate=ds[0]["audio"]["sampling_rate"], return_tensors="pt"
837
+ ... )
838
+ >>> input_values = inputs.input_values
839
+ >>> decoder_input_ids = tokenizer(ds[0]["text"], return_tensors="pt").input_ids
840
+ >>> # compute loss
841
+
842
+ >>> loss = model(inputs=input_values, labels=decoder_input_ids).loss
843
+ >>> # backprop loss
844
+
845
+ >>> loss.backward() # doctest: +IGNORE_RESULT
846
+ ```"""
847
+
848
+ output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
849
+ output_hidden_states = (
850
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
851
+ )
852
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
853
+
854
+ # decoder outputs consists of (dec_features, layer_state, dec_hidden, dec_attn)
855
+ outputs = self.model.decoder(
856
+ input_ids=input_ids,
857
+ attention_mask=attention_mask,
858
+ encoder_hidden_states=encoder_hidden_states,
859
+ encoder_attention_mask=encoder_attention_mask,
860
+ head_mask=head_mask,
861
+ cross_attn_head_mask=cross_attn_head_mask,
862
+ past_key_values=past_key_values,
863
+ inputs_embeds=inputs_embeds,
864
+ use_cache=use_cache,
865
+ output_attentions=output_attentions,
866
+ output_hidden_states=output_hidden_states,
867
+ return_dict=return_dict,
868
+ )
869
+
870
+ logits = self.lm_head(outputs[0])
871
+
872
+ loss = None
873
+ if labels is not None:
874
+ loss_fct = CrossEntropyLoss()
875
+ loss = loss_fct(logits.view(-1, self.config.vocab_size), labels.view(-1))
876
+
877
+ if not return_dict:
878
+ output = (logits,) + outputs[1:]
879
+ return (loss,) + output if loss is not None else output
880
+
881
+ return CausalLMOutputWithCrossAttentions(
882
+ loss=loss,
883
+ logits=logits,
884
+ past_key_values=outputs.past_key_values,
885
+ hidden_states=outputs.hidden_states,
886
+ attentions=outputs.attentions,
887
+ cross_attentions=outputs.cross_attentions,
888
+ )
889
+
890
+ def prepare_inputs_for_generation(
891
+ self, input_ids, past_key_values=None, attention_mask=None, use_cache=None, **kwargs
892
+ ):
893
+ # if model is used as a decoder in encoder-decoder model, the decoder attention mask is created on the fly
894
+ if attention_mask is None:
895
+ attention_mask = input_ids.new_ones(input_ids.shape)
896
+
897
+ if past_key_values:
898
+ past_length = past_key_values[0][0].shape[2]
899
+
900
+ # Some generation methods already pass only the last input ID
901
+ if input_ids.shape[1] > past_length:
902
+ remove_prefix_length = past_length
903
+ else:
904
+ # Default to old behavior: keep only final ID
905
+ remove_prefix_length = input_ids.shape[1] - 1
906
+
907
+ input_ids = input_ids[:, remove_prefix_length:]
908
+ # first step, decoder_cached_states are empty
909
+ return {
910
+ "input_ids": input_ids, # encoder_outputs is defined. input_ids not needed
911
+ "attention_mask": attention_mask,
912
+ "past_key_values": past_key_values,
913
+ "use_cache": use_cache,
914
+ }
915
+
916
+ @staticmethod
917
+ def _reorder_cache(past_key_values, beam_idx):
918
+ reordered_past = ()
919
+ for layer_past in past_key_values:
920
+ reordered_past += (
921
+ tuple(past_state.index_select(0, beam_idx.to(past_state.device)) for past_state in layer_past),
922
+ )
923
+ return reordered_past
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/speech_to_text_2/processing_speech_to_text_2.py ADDED
@@ -0,0 +1,116 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2021 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
+ """
16
+ Speech processor class for Speech2Text2
17
+ """
18
+
19
+ import warnings
20
+ from contextlib import contextmanager
21
+
22
+ from ....processing_utils import ProcessorMixin
23
+
24
+
25
+ class Speech2Text2Processor(ProcessorMixin):
26
+ r"""
27
+ Constructs a Speech2Text2 processor which wraps a Speech2Text2 feature extractor and a Speech2Text2 tokenizer into
28
+ a single processor.
29
+
30
+ [`Speech2Text2Processor`] offers all the functionalities of [`AutoFeatureExtractor`] and [`Speech2Text2Tokenizer`].
31
+ See the [`~Speech2Text2Processor.__call__`] and [`~Speech2Text2Processor.decode`] for more information.
32
+
33
+ Args:
34
+ feature_extractor (`AutoFeatureExtractor`):
35
+ An instance of [`AutoFeatureExtractor`]. The feature extractor is a required input.
36
+ tokenizer (`Speech2Text2Tokenizer`):
37
+ An instance of [`Speech2Text2Tokenizer`]. The tokenizer is a required input.
38
+ """
39
+
40
+ feature_extractor_class = "AutoFeatureExtractor"
41
+ tokenizer_class = "Speech2Text2Tokenizer"
42
+
43
+ def __init__(self, feature_extractor, tokenizer):
44
+ super().__init__(feature_extractor, tokenizer)
45
+ self.current_processor = self.feature_extractor
46
+ self._in_target_context_manager = False
47
+
48
+ def __call__(self, *args, **kwargs):
49
+ """
50
+ When used in normal mode, this method forwards all its arguments to AutoFeatureExtractor's
51
+ [`~AutoFeatureExtractor.__call__`] and returns its output. If used in the context
52
+ [`~Speech2Text2Processor.as_target_processor`] this method forwards all its arguments to
53
+ Speech2Text2Tokenizer's [`~Speech2Text2Tokenizer.__call__`]. Please refer to the doctsring of the above two
54
+ methods for more information.
55
+ """
56
+ # For backward compatibility
57
+ if self._in_target_context_manager:
58
+ return self.current_processor(*args, **kwargs)
59
+
60
+ if "raw_speech" in kwargs:
61
+ warnings.warn("Using `raw_speech` as a keyword argument is deprecated. Use `audio` instead.")
62
+ audio = kwargs.pop("raw_speech")
63
+ else:
64
+ audio = kwargs.pop("audio", None)
65
+ sampling_rate = kwargs.pop("sampling_rate", None)
66
+ text = kwargs.pop("text", None)
67
+ if len(args) > 0:
68
+ audio = args[0]
69
+ args = args[1:]
70
+
71
+ if audio is None and text is None:
72
+ raise ValueError("You need to specify either an `audio` or `text` input to process.")
73
+
74
+ if audio is not None:
75
+ inputs = self.feature_extractor(audio, *args, sampling_rate=sampling_rate, **kwargs)
76
+ if text is not None:
77
+ encodings = self.tokenizer(text, **kwargs)
78
+
79
+ if text is None:
80
+ return inputs
81
+ elif audio is None:
82
+ return encodings
83
+ else:
84
+ inputs["labels"] = encodings["input_ids"]
85
+ return inputs
86
+
87
+ def batch_decode(self, *args, **kwargs):
88
+ """
89
+ This method forwards all its arguments to Speech2Text2Tokenizer's [`~PreTrainedTokenizer.batch_decode`]. Please
90
+ refer to the docstring of this method for more information.
91
+ """
92
+ return self.tokenizer.batch_decode(*args, **kwargs)
93
+
94
+ def decode(self, *args, **kwargs):
95
+ """
96
+ This method forwards all its arguments to Speech2Text2Tokenizer's [`~PreTrainedTokenizer.decode`]. Please refer
97
+ to the docstring of this method for more information.
98
+ """
99
+ return self.tokenizer.decode(*args, **kwargs)
100
+
101
+ @contextmanager
102
+ def as_target_processor(self):
103
+ """
104
+ Temporarily sets the tokenizer for processing the input. Useful for encoding the labels when fine-tuning
105
+ Speech2Text2.
106
+ """
107
+ warnings.warn(
108
+ "`as_target_processor` is deprecated and will be removed in v5 of Transformers. You can process your "
109
+ "labels by using the argument `text` of the regular `__call__` method (either in the same call as "
110
+ "your audio inputs, or in a separate call."
111
+ )
112
+ self._in_target_context_manager = True
113
+ self.current_processor = self.tokenizer
114
+ yield
115
+ self.current_processor = self.feature_extractor
116
+ self._in_target_context_manager = False
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/speech_to_text_2/tokenization_speech_to_text_2.py ADDED
@@ -0,0 +1,249 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2021 The Facebook 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
+ """Tokenization class for Speech2Text2."""
16
+
17
+ import json
18
+ import os
19
+ from typing import Dict, List, Optional, Tuple
20
+
21
+ from ....tokenization_utils import PreTrainedTokenizer
22
+ from ....utils import logging
23
+
24
+
25
+ logger = logging.get_logger(__name__)
26
+
27
+
28
+ VOCAB_FILES_NAMES = {
29
+ "vocab_file": "vocab.json",
30
+ "tokenizer_config_file": "tokenizer_config.json",
31
+ "merges_file": "merges.txt",
32
+ }
33
+
34
+
35
+ BPE_TOKEN_MERGES = "</w>"
36
+ BPE_TOKEN_VOCAB = "@@ "
37
+
38
+
39
+ def get_pairs(word):
40
+ """
41
+ Return set of symbol pairs in a word. word is represented as tuple of symbols (symbols being variable-length
42
+ strings)
43
+ """
44
+ pairs = set()
45
+ prev_char = word[0]
46
+ for char in word[1:]:
47
+ pairs.add((prev_char, char))
48
+ prev_char = char
49
+ return pairs
50
+
51
+
52
+ # Speech2Text2 has no max input length
53
+
54
+
55
+ class Speech2Text2Tokenizer(PreTrainedTokenizer):
56
+ """
57
+ Constructs a Speech2Text2Tokenizer.
58
+
59
+ This tokenizer inherits from [`PreTrainedTokenizer`] which contains some of the main methods. Users should refer to
60
+ the superclass for more information regarding such methods.
61
+
62
+ Args:
63
+ vocab_file (`str`):
64
+ File containing the vocabulary.
65
+ bos_token (`str`, *optional*, defaults to `"<s>"`):
66
+ The beginning of sentence token.
67
+ eos_token (`str`, *optional*, defaults to `"</s>"`):
68
+ The end of sentence token.
69
+ unk_token (`str`, *optional*, defaults to `"<unk>"`):
70
+ The unknown token. A token that is not in the vocabulary cannot be converted to an ID and is set to be this
71
+ token instead.
72
+ pad_token (`str`, *optional*, defaults to `"<pad>"`):
73
+ The token used for padding, for example when batching sequences of different lengths.
74
+
75
+ **kwargs
76
+ Additional keyword arguments passed along to [`PreTrainedTokenizer`]
77
+ """
78
+
79
+ vocab_files_names = VOCAB_FILES_NAMES
80
+ model_input_names = ["input_ids", "attention_mask"]
81
+
82
+ def __init__(
83
+ self,
84
+ vocab_file,
85
+ bos_token="<s>",
86
+ pad_token="<pad>",
87
+ eos_token="</s>",
88
+ unk_token="<unk>",
89
+ do_lower_case=False,
90
+ merges_file=None,
91
+ **kwargs,
92
+ ):
93
+ self.do_lower_case = do_lower_case
94
+
95
+ with open(vocab_file, encoding="utf-8") as vocab_handle:
96
+ self.encoder = json.load(vocab_handle)
97
+ self.decoder = {v: k for k, v in self.encoder.items()}
98
+
99
+ if merges_file is None:
100
+ logger.info(f"No merges files provided. {self.__class__.__name__} can only be used for decoding.")
101
+
102
+ self.bpe_ranks = None
103
+ self.cache = None
104
+ else:
105
+ with open(merges_file, encoding="utf-8") as merges_handle:
106
+ merges = merges_handle.read().split("\n")[:-1]
107
+
108
+ merges = [tuple(merge.split()[:2]) for merge in merges]
109
+ self.bpe_ranks = dict(zip(merges, range(len(merges))))
110
+ self.cache = {}
111
+ super().__init__(
112
+ unk_token=unk_token,
113
+ bos_token=bos_token,
114
+ eos_token=eos_token,
115
+ pad_token=pad_token,
116
+ do_lower_case=do_lower_case,
117
+ **kwargs,
118
+ )
119
+
120
+ @property
121
+ def vocab_size(self) -> int:
122
+ return len(self.decoder)
123
+
124
+ def get_vocab(self) -> Dict:
125
+ return dict(self.encoder, **self.added_tokens_encoder)
126
+
127
+ def bpe(self, token):
128
+ word = tuple(token[:-1]) + (token[-1] + BPE_TOKEN_MERGES,)
129
+ if token in self.cache:
130
+ return self.cache[token]
131
+ pairs = get_pairs(word)
132
+
133
+ if not pairs:
134
+ return token
135
+
136
+ while True:
137
+ bigram = min(pairs, key=lambda pair: self.bpe_ranks.get(pair, float("inf")))
138
+ if bigram not in self.bpe_ranks:
139
+ break
140
+ first, second = bigram
141
+ new_word = []
142
+ i = 0
143
+ while i < len(word):
144
+ try:
145
+ j = word.index(first, i)
146
+ except ValueError:
147
+ new_word.extend(word[i:])
148
+ break
149
+ else:
150
+ new_word.extend(word[i:j])
151
+ i = j
152
+
153
+ if word[i] == first and i < len(word) - 1 and word[i + 1] == second:
154
+ new_word.append(first + second)
155
+ i += 2
156
+ else:
157
+ new_word.append(word[i])
158
+ i += 1
159
+ new_word = tuple(new_word)
160
+ word = new_word
161
+ if len(word) == 1:
162
+ break
163
+ else:
164
+ pairs = get_pairs(word)
165
+ word = " ".join(word)
166
+ if word == "\n " + BPE_TOKEN_MERGES:
167
+ word = "\n" + BPE_TOKEN_MERGES
168
+
169
+ if word.endswith(BPE_TOKEN_MERGES):
170
+ word = word.replace(BPE_TOKEN_MERGES, "")
171
+
172
+ word = word.replace(" ", BPE_TOKEN_VOCAB)
173
+ self.cache[token] = word
174
+ return word
175
+
176
+ def _tokenize(self, text):
177
+ """Tokenize a string."""
178
+
179
+ if self.bpe_ranks is None:
180
+ raise ValueError(
181
+ "This tokenizer was instantiated without a `merges.txt` file, so"
182
+ " that it can only be used for decoding, not for encoding. "
183
+ "Make sure to provide `merges.txt` file at instantiation to enable "
184
+ "encoding."
185
+ )
186
+
187
+ if self.do_lower_case:
188
+ text = text.lower()
189
+
190
+ text = text.split()
191
+
192
+ split_tokens = []
193
+ for token in text:
194
+ if token:
195
+ split_tokens.extend(list(self.bpe(token).split(" ")))
196
+
197
+ return split_tokens
198
+
199
+ def _convert_token_to_id(self, token: str) -> int:
200
+ """Converts a token (str) in an index (integer) using the vocab."""
201
+ return self.encoder.get(token, self.encoder.get(self.unk_token))
202
+
203
+ def _convert_id_to_token(self, index: int) -> str:
204
+ """Converts an index (integer) in a token (str) using the vocab."""
205
+ result = self.decoder.get(index, self.unk_token)
206
+ return result
207
+
208
+ def convert_tokens_to_string(self, tokens: List[str]) -> str:
209
+ """
210
+ Converts a list of output tokens into a single string.
211
+ """
212
+ # combine tokens
213
+ string = " ".join(tokens)
214
+
215
+ # make sure @@ tokens are concatenated
216
+ string = "".join(string.split(BPE_TOKEN_VOCAB))
217
+
218
+ return string
219
+
220
+ def save_vocabulary(self, save_directory: str, filename_prefix: Optional[str] = None) -> Tuple[str]:
221
+ if not os.path.isdir(save_directory):
222
+ logger.error(f"Vocabulary path ({save_directory}) should be a directory")
223
+ return
224
+ vocab_file = os.path.join(
225
+ save_directory, (filename_prefix + "-" if filename_prefix else "") + VOCAB_FILES_NAMES["vocab_file"]
226
+ )
227
+ merges_file = os.path.join(
228
+ save_directory, (filename_prefix + "-" if filename_prefix else "") + VOCAB_FILES_NAMES["merges_file"]
229
+ )
230
+
231
+ with open(vocab_file, "w", encoding="utf-8") as f:
232
+ f.write(json.dumps(self.encoder, indent=2, sort_keys=True, ensure_ascii=False) + "\n")
233
+
234
+ index = 0
235
+ if self.bpe_ranks is None:
236
+ return (vocab_file,)
237
+
238
+ with open(merges_file, "w", encoding="utf-8") as writer:
239
+ for bpe_tokens, token_index in sorted(self.bpe_ranks.items(), key=lambda kv: kv[1]):
240
+ if index != token_index:
241
+ logger.warning(
242
+ f"Saving vocabulary to {merges_file}: BPE merge indices are not consecutive."
243
+ " Please check that the tokenizer is not corrupted!"
244
+ )
245
+ index = token_index
246
+ writer.write(" ".join(bpe_tokens) + "\n")
247
+ index += 1
248
+
249
+ return (vocab_file, merges_file)
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/tapex/__init__.py ADDED
@@ -0,0 +1,29 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # Copyright 2022 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
+
18
+
19
+ _import_structure = {"tokenization_tapex": ["TapexTokenizer"]}
20
+
21
+
22
+ if TYPE_CHECKING:
23
+ from .tokenization_tapex import TapexTokenizer
24
+
25
+
26
+ else:
27
+ import sys
28
+
29
+ sys.modules[__name__] = _LazyModule(__name__, globals()["__file__"], _import_structure)
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/tapex/tokenization_tapex.py ADDED
@@ -0,0 +1,1467 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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
+ """Tokenization classes for TAPEX."""
16
+
17
+ import json
18
+ import os
19
+ import random
20
+ from functools import lru_cache
21
+ from typing import Dict, List, Optional, Tuple, Union
22
+
23
+ import regex as re
24
+
25
+ from ....file_utils import ExplicitEnum, PaddingStrategy, TensorType, add_end_docstrings, is_pandas_available
26
+ from ....tokenization_utils import AddedToken, PreTrainedTokenizer
27
+ from ....tokenization_utils_base import ENCODE_KWARGS_DOCSTRING, BatchEncoding, TextInput, TruncationStrategy
28
+ from ....utils import logging
29
+
30
+
31
+ if is_pandas_available():
32
+ import pandas as pd
33
+
34
+
35
+ logger = logging.get_logger(__name__)
36
+
37
+ VOCAB_FILES_NAMES = {"vocab_file": "vocab.json", "merges_file": "merges.txt"}
38
+
39
+
40
+ class TapexTruncationStrategy(ExplicitEnum):
41
+ """
42
+ Possible values for the `truncation` argument in [`~TapasTokenizer.__call__`]. Useful for tab-completion in an IDE.
43
+ """
44
+
45
+ DROP_ROWS_TO_FIT = "drop_rows_to_fit"
46
+
47
+
48
+ TAPEX_ENCODE_PLUS_ADDITIONAL_KWARGS_DOCSTRING = r"""
49
+ add_special_tokens (`bool`, *optional*, defaults to `True`):
50
+ Whether or not to encode the sequences with the special tokens relative to their model.
51
+ padding (`bool`, `str` or [`~file_utils.PaddingStrategy`], *optional*, defaults to `False`):
52
+ Activates and controls padding. Accepts the following values:
53
+
54
+ - `True` or `'longest'`: Pad to the longest sequence in the batch (or no padding if only a single
55
+ sequence if provided).
56
+ - `'max_length'`: Pad to a maximum length specified with the argument `max_length` or to the maximum
57
+ acceptable input length for the model if that argument is not provided.
58
+ - `False` or `'do_not_pad'` (default): No padding (i.e., can output a batch with sequences of different
59
+ lengths).
60
+ truncation (`bool`, `str`, [`TapexTruncationStrategy`] or [`~tokenization_utils_base.TruncationStrategy`],
61
+ *optional*, defaults to `False`):
62
+
63
+ Activates and controls truncation. Accepts the following values:
64
+
65
+ - `'drop_rows_to_fit'`: Truncate to a maximum length specified with the argument `max_length` or to the
66
+ maximum acceptable input length for the model if that argument is not provided. This will truncate
67
+ row by row, removing rows from the table.
68
+ - `True` or `'longest_first'`: Truncate to a maximum length specified with the argument `max_length` or
69
+ to the maximum acceptable input length for the model if that argument is not provided. This will
70
+ truncate token by token, removing a token from the longest sequence in the pair if a pair of
71
+ sequences (or a batch of pairs) is provided.
72
+ - `'only_first'`: Truncate to a maximum length specified with the argument `max_length` or to the
73
+ maximum acceptable input length for the model if that argument is not provided. This will only
74
+ truncate the first sequence of a pair if a pair of sequences (or a batch of pairs) is provided.
75
+ - `'only_second'`: Truncate to a maximum length specified with the argument `max_length` or to the
76
+ maximum acceptable input length for the model if that argument is not provided. This will only
77
+ truncate the second sequence of a pair if a pair of sequences (or a batch of pairs) is provided.
78
+ - `False` or `'do_not_truncate'` (default): No truncation (i.e., can output batch with sequence lengths
79
+ greater than the model maximum admissible input size).
80
+ max_length (`int`, *optional*):
81
+ Controls the maximum length to use by one of the truncation/padding parameters. If left unset or set to
82
+ `None`, this will use the predefined model maximum length if a maximum length is required by one of the
83
+ truncation/padding parameters. If the model has no specific maximum input length (like XLNet)
84
+ truncation/padding to a maximum length will be deactivated.
85
+ stride (`int`, *optional*, defaults to 0):
86
+ If set to a number along with `max_length`, the overflowing tokens returned when
87
+ `return_overflowing_tokens=True` will contain some tokens from the end of the truncated sequence
88
+ returned to provide some overlap between truncated and overflowing sequences. The value of this
89
+ argument defines the number of overlapping tokens.
90
+ pad_to_multiple_of (`int`, *optional*):
91
+ If set will pad the sequence to a multiple of the provided value. This is especially useful to enable
92
+ the use of Tensor Cores on NVIDIA hardware with compute capability `>= 7.5` (Volta).
93
+ return_tensors (`str` or [`~file_utils.TensorType`], *optional*):
94
+ If set, will return tensors instead of list of python integers. Acceptable values are:
95
+
96
+ - `'tf'`: Return TensorFlow `tf.constant` objects.
97
+ - `'pt'`: Return PyTorch `torch.Tensor` objects.
98
+ - `'np'`: Return Numpy `np.ndarray` objects.
99
+ """
100
+
101
+
102
+ @lru_cache()
103
+ def bytes_to_unicode():
104
+ """
105
+ Returns list of utf-8 byte and a mapping to unicode strings. We specifically avoids mapping to whitespace/control
106
+ characters the bpe code barfs on. The reversible bpe codes work on unicode strings. This means you need a large #
107
+ of unicode characters in your vocab if you want to avoid UNKs. When you're at something like a 10B token dataset
108
+ you end up needing around 5K for decent coverage. This is a significant percentage of your normal, say, 32K bpe
109
+ vocab. To avoid that, we want lookup tables between utf-8 bytes and unicode strings.
110
+ """
111
+ bs = (
112
+ list(range(ord("!"), ord("~") + 1)) + list(range(ord("¡"), ord("¬") + 1)) + list(range(ord("®"), ord("ÿ") + 1))
113
+ )
114
+ cs = bs[:]
115
+ n = 0
116
+ for b in range(2**8):
117
+ if b not in bs:
118
+ bs.append(b)
119
+ cs.append(2**8 + n)
120
+ n += 1
121
+ cs = [chr(n) for n in cs]
122
+ return dict(zip(bs, cs))
123
+
124
+
125
+ def get_pairs(word):
126
+ """
127
+ Return set of symbol pairs in a word. Word is represented as tuple of symbols (symbols being variable-length
128
+ strings).
129
+ """
130
+ pairs = set()
131
+ prev_char = word[0]
132
+ for char in word[1:]:
133
+ pairs.add((prev_char, char))
134
+ prev_char = char
135
+ return pairs
136
+
137
+
138
+ class IndexedRowTableLinearize:
139
+ """
140
+ FORMAT: col: col1 | col2 | col 3 row 1 : val1 | val2 | val3 row 2 : ...
141
+ """
142
+
143
+ def process_table(self, table_content: Dict):
144
+ """
145
+ Given a table, TableLinearize aims at converting it into a flatten sequence with special symbols.
146
+ """
147
+ assert "header" in table_content and "rows" in table_content, self.PROMPT_MESSAGE
148
+ # process header
149
+ table_str = self.process_header(table_content["header"]) + " "
150
+ # process rows
151
+ for i, row_example in enumerate(table_content["rows"]):
152
+ # NOTE: the row should start from row 1 instead of 0
153
+ table_str += self.process_row(row_example, row_index=i + 1) + " "
154
+ return table_str.strip()
155
+
156
+ def process_header(self, headers: List):
157
+ """
158
+ Given a list of headers, TableLinearize aims at converting it into a flatten sequence with special symbols.
159
+ """
160
+ return "col : " + " | ".join(headers)
161
+
162
+ def process_row(self, row: List, row_index: int):
163
+ """
164
+ Given a row, TableLinearize aims at converting it into a flatten sequence with special symbols.
165
+ """
166
+ row_str = ""
167
+ row_cell_values = []
168
+ for cell_value in row:
169
+ if isinstance(cell_value, int):
170
+ row_cell_values.append(str(cell_value))
171
+ else:
172
+ row_cell_values.append(cell_value)
173
+ row_str += " | ".join(row_cell_values)
174
+ return "row " + str(row_index) + " : " + row_str
175
+
176
+
177
+ class TapexTokenizer(PreTrainedTokenizer):
178
+ r"""
179
+ Construct a TAPEX tokenizer. Based on byte-level Byte-Pair-Encoding (BPE).
180
+
181
+ This tokenizer can be used to flatten one or more table(s) and concatenate them with one or more related sentences
182
+ to be used by TAPEX models. The format that the TAPEX tokenizer creates is the following:
183
+
184
+ sentence col: col1 | col2 | col 3 row 1 : val1 | val2 | val3 row 2 : ...
185
+
186
+ The tokenizer supports a single table + single query, a single table and multiple queries (in which case the table
187
+ will be duplicated for every query), a single query and multiple tables (in which case the query will be duplicated
188
+ for every table), and multiple tables and queries. In other words, you can provide a batch of tables + questions to
189
+ the tokenizer for instance to prepare them for the model.
190
+
191
+ Tokenization itself is based on the BPE algorithm. It is identical to the one used by BART, RoBERTa and GPT-2.
192
+
193
+ This tokenizer inherits from [`PreTrainedTokenizer`] which contains most of the main methods. Users should refer to
194
+ this superclass for more information regarding those methods.
195
+
196
+ Args:
197
+ vocab_file (`str`):
198
+ Path to the vocabulary file.
199
+ merges_file (`str`):
200
+ Path to the merges file.
201
+ do_lower_case (`bool`, *optional*, defaults to `True`):
202
+ Whether or not to lowercase the input when tokenizing.
203
+ errors (`str`, *optional*, defaults to `"replace"`):
204
+ Paradigm to follow when decoding bytes to UTF-8. See
205
+ [bytes.decode](https://docs.python.org/3/library/stdtypes.html#bytes.decode) for more information.
206
+ bos_token (`str`, *optional*, defaults to `"<s>"`):
207
+ The beginning of sequence token that was used during pretraining. Can be used a sequence classifier token.
208
+
209
+ <Tip>
210
+
211
+ When building a sequence using special tokens, this is not the token that is used for the beginning of
212
+ sequence. The token used is the `cls_token`.
213
+
214
+ </Tip>
215
+
216
+ eos_token (`str`, *optional*, defaults to `"</s>"`):
217
+ The end of sequence token.
218
+
219
+ <Tip>
220
+
221
+ When building a sequence using special tokens, this is not the token that is used for the end of sequence.
222
+ The token used is the `sep_token`.
223
+
224
+ </Tip>
225
+
226
+ sep_token (`str`, *optional*, defaults to `"</s>"`):
227
+ The separator token, which is used when building a sequence from multiple sequences, e.g. two sequences for
228
+ sequence classification or for a text and a question for question answering. It is also used as the last
229
+ token of a sequence built with special tokens.
230
+ cls_token (`str`, *optional*, defaults to `"<s>"`):
231
+ The classifier token which is used when doing sequence classification (classification of the whole sequence
232
+ instead of per-token classification). It is the first token of the sequence when built with special tokens.
233
+ unk_token (`str`, *optional*, defaults to `"<unk>"`):
234
+ The unknown token. A token that is not in the vocabulary cannot be converted to an ID and is set to be this
235
+ token instead.
236
+ pad_token (`str`, *optional*, defaults to `"<pad>"`):
237
+ The token used for padding, for example when batching sequences of different lengths.
238
+ mask_token (`str`, *optional*, defaults to `"<mask>"`):
239
+ The token used for masking values. This is the token used when training this model with masked language
240
+ modeling. This is the token which the model will try to predict.
241
+ add_prefix_space (`bool`, *optional*, defaults to `False`):
242
+ Whether or not to add an initial space to the input. This allows to treat the leading word just as any
243
+ other word. (BART tokenizer detect beginning of words by the preceding space).
244
+ max_cell_length (`int`, *optional*, defaults to 15):
245
+ Maximum number of characters per cell when linearizing a table. If this number is exceeded, truncation
246
+ takes place.
247
+ """
248
+
249
+ vocab_files_names = VOCAB_FILES_NAMES
250
+ model_input_names = ["input_ids", "attention_mask"]
251
+
252
+ def __init__(
253
+ self,
254
+ vocab_file,
255
+ merges_file,
256
+ do_lower_case=True,
257
+ errors="replace",
258
+ bos_token="<s>",
259
+ eos_token="</s>",
260
+ sep_token="</s>",
261
+ cls_token="<s>",
262
+ unk_token="<unk>",
263
+ pad_token="<pad>",
264
+ mask_token="<mask>",
265
+ add_prefix_space=False,
266
+ max_cell_length=15,
267
+ **kwargs,
268
+ ):
269
+ bos_token = AddedToken(bos_token, lstrip=False, rstrip=False) if isinstance(bos_token, str) else bos_token
270
+ eos_token = AddedToken(eos_token, lstrip=False, rstrip=False) if isinstance(eos_token, str) else eos_token
271
+ sep_token = AddedToken(sep_token, lstrip=False, rstrip=False) if isinstance(sep_token, str) else sep_token
272
+ cls_token = AddedToken(cls_token, lstrip=False, rstrip=False) if isinstance(cls_token, str) else cls_token
273
+ unk_token = AddedToken(unk_token, lstrip=False, rstrip=False) if isinstance(unk_token, str) else unk_token
274
+ pad_token = AddedToken(pad_token, lstrip=False, rstrip=False) if isinstance(pad_token, str) else pad_token
275
+
276
+ # Mask token behave like a normal word, i.e. include the space before it
277
+ mask_token = AddedToken(mask_token, lstrip=True, rstrip=False) if isinstance(mask_token, str) else mask_token
278
+
279
+ with open(vocab_file, encoding="utf-8") as vocab_handle:
280
+ self.encoder = json.load(vocab_handle)
281
+ self.decoder = {v: k for k, v in self.encoder.items()}
282
+ self.errors = errors # how to handle errors in decoding
283
+ self.byte_encoder = bytes_to_unicode()
284
+ self.byte_decoder = {v: k for k, v in self.byte_encoder.items()}
285
+ with open(merges_file, encoding="utf-8") as merges_handle:
286
+ bpe_merges = merges_handle.read().split("\n")[1:-1]
287
+ bpe_merges = [tuple(merge.split()) for merge in bpe_merges]
288
+ self.bpe_ranks = dict(zip(bpe_merges, range(len(bpe_merges))))
289
+ self.cache = {}
290
+ self.add_prefix_space = add_prefix_space
291
+ self.do_lower_case = do_lower_case
292
+
293
+ # Should have added re.IGNORECASE so BPE merges can happen for capitalized versions of contractions
294
+ self.pat = re.compile(r"""'s|'t|'re|'ve|'m|'ll|'d| ?\p{L}+| ?\p{N}+| ?[^\s\p{L}\p{N}]+|\s+(?!\S)|\s+""")
295
+
296
+ # additional properties
297
+
298
+ super().__init__(
299
+ vocab_file=vocab_file,
300
+ merges_file=merges_file,
301
+ do_lower_case=do_lower_case,
302
+ errors=errors,
303
+ bos_token=bos_token,
304
+ eos_token=eos_token,
305
+ unk_token=unk_token,
306
+ sep_token=sep_token,
307
+ cls_token=cls_token,
308
+ pad_token=pad_token,
309
+ mask_token=mask_token,
310
+ add_prefix_space=add_prefix_space,
311
+ max_cell_length=max_cell_length,
312
+ **kwargs,
313
+ )
314
+
315
+ self.max_cell_length = max_cell_length
316
+ self.table_linearize = IndexedRowTableLinearize()
317
+
318
+ def build_inputs_with_special_tokens(
319
+ self, token_ids_0: List[int], token_ids_1: Optional[List[int]] = None
320
+ ) -> List[int]:
321
+ """
322
+ Build model inputs from a sequence or a pair of sequence for sequence classification tasks by concatenating and
323
+ adding special tokens. A TAPEX sequence has the following format:
324
+ - single sequence: `<s> X </s>`
325
+ - pair of sequences: `<s> A </s></s> B </s>`
326
+
327
+ Args:
328
+ token_ids_0 (`List[int]`):
329
+ List of IDs to which the special tokens will be added.
330
+ token_ids_1 (`List[int]`, *optional*):
331
+ Optional second list of IDs for sequence pairs.
332
+ Returns:
333
+ `List[int]`: List of [input IDs](../glossary#input-ids) with the appropriate special tokens.
334
+ """
335
+ if token_ids_1 is None:
336
+ return [self.cls_token_id] + token_ids_0 + [self.sep_token_id]
337
+ cls = [self.cls_token_id]
338
+ sep = [self.sep_token_id]
339
+ return cls + token_ids_0 + sep + sep + token_ids_1 + sep
340
+
341
+ def get_special_tokens_mask(
342
+ self, token_ids_0: List[int], token_ids_1: Optional[List[int]] = None, already_has_special_tokens: bool = False
343
+ ) -> List[int]:
344
+ """
345
+ Args:
346
+ Retrieve sequence ids from a token list that has no special tokens added. This method is called when adding
347
+ special tokens using the tokenizer `prepare_for_model` method.
348
+ token_ids_0 (`List[int]`):
349
+ List of IDs.
350
+ token_ids_1 (`List[int]`, *optional*):
351
+ Optional second list of IDs for sequence pairs.
352
+ already_has_special_tokens (`bool`, *optional*, defaults to `False`):
353
+ Whether or not the token list is already formatted with special tokens for the model.
354
+ Returns:
355
+ `List[int]`: A list of integers in the range [0, 1]: 1 for a special token, 0 for a sequence token.
356
+ """
357
+ if already_has_special_tokens:
358
+ return super().get_special_tokens_mask(
359
+ token_ids_0=token_ids_0, token_ids_1=token_ids_1, already_has_special_tokens=True
360
+ )
361
+
362
+ if token_ids_1 is None:
363
+ return [1] + ([0] * len(token_ids_0)) + [1]
364
+ return [1] + ([0] * len(token_ids_0)) + [1, 1] + ([0] * len(token_ids_1)) + [1]
365
+
366
+ def create_token_type_ids_from_sequences(
367
+ self, token_ids_0: List[int], token_ids_1: Optional[List[int]] = None
368
+ ) -> List[int]:
369
+ """
370
+ Args:
371
+ Create a mask from the two sequences passed to be used in a sequence-pair classification task. TAPEX does not:
372
+ make use of token type ids, therefore a list of zeros is returned.
373
+ token_ids_0 (`List[int]`):
374
+ List of IDs.
375
+ token_ids_1 (`List[int]`, *optional*):
376
+ Optional second list of IDs for sequence pairs.
377
+ Returns:
378
+ `List[int]`: List of zeros.
379
+ """
380
+ sep = [self.sep_token_id]
381
+ cls = [self.cls_token_id]
382
+
383
+ if token_ids_1 is None:
384
+ return len(cls + token_ids_0 + sep) * [0]
385
+ return len(cls + token_ids_0 + sep + sep + token_ids_1 + sep) * [0]
386
+
387
+ def prepare_for_tokenization(self, text, is_split_into_words=False, **kwargs):
388
+ add_prefix_space = kwargs.pop("add_prefix_space", self.add_prefix_space)
389
+ if (is_split_into_words or add_prefix_space) and (len(text) > 0 and not text[0].isspace()):
390
+ text = " " + text
391
+ return (text, kwargs)
392
+
393
+ @property
394
+ def vocab_size(self):
395
+ return len(self.encoder)
396
+
397
+ def get_vocab(self):
398
+ return dict(self.encoder, **self.added_tokens_encoder)
399
+
400
+ def bpe(self, token):
401
+ if token in self.cache:
402
+ return self.cache[token]
403
+ word = tuple(token)
404
+ pairs = get_pairs(word)
405
+
406
+ if not pairs:
407
+ return token
408
+
409
+ while True:
410
+ bigram = min(pairs, key=lambda pair: self.bpe_ranks.get(pair, float("inf")))
411
+ if bigram not in self.bpe_ranks:
412
+ break
413
+ first, second = bigram
414
+ new_word = []
415
+ i = 0
416
+ while i < len(word):
417
+ try:
418
+ j = word.index(first, i)
419
+ except ValueError:
420
+ new_word.extend(word[i:])
421
+ break
422
+ else:
423
+ new_word.extend(word[i:j])
424
+ i = j
425
+
426
+ if word[i] == first and i < len(word) - 1 and word[i + 1] == second:
427
+ new_word.append(first + second)
428
+ i += 2
429
+ else:
430
+ new_word.append(word[i])
431
+ i += 1
432
+ new_word = tuple(new_word)
433
+ word = new_word
434
+ if len(word) == 1:
435
+ break
436
+ else:
437
+ pairs = get_pairs(word)
438
+ word = " ".join(word)
439
+ self.cache[token] = word
440
+ return word
441
+
442
+ def _tokenize(self, text):
443
+ """Tokenize a string."""
444
+ bpe_tokens = []
445
+ for token in re.findall(self.pat, text):
446
+ token = "".join(
447
+ self.byte_encoder[b] for b in token.encode("utf-8")
448
+ ) # Maps all our bytes to unicode strings, avoiding control tokens of the BPE (spaces in our case)
449
+ bpe_tokens.extend(bpe_token for bpe_token in self.bpe(token).split(" "))
450
+ return bpe_tokens
451
+
452
+ def _convert_token_to_id(self, token):
453
+ """Converts a token (str) in an id using the vocab."""
454
+ return self.encoder.get(token, self.encoder.get(self.unk_token))
455
+
456
+ def _convert_id_to_token(self, index):
457
+ """Converts an index (integer) in a token (str) using the vocab."""
458
+ return self.decoder.get(index)
459
+
460
+ def convert_tokens_to_string(self, tokens):
461
+ """Converts a sequence of tokens (string) in a single string."""
462
+ text = "".join(tokens)
463
+ text = bytearray([self.byte_decoder[c] for c in text]).decode("utf-8", errors=self.errors)
464
+ return text
465
+
466
+ def save_vocabulary(self, save_directory: str, filename_prefix: Optional[str] = None) -> Tuple[str]:
467
+ if not os.path.isdir(save_directory):
468
+ logger.error(f"Vocabulary path ({save_directory}) should be a directory")
469
+ return
470
+ vocab_file = os.path.join(
471
+ save_directory, (filename_prefix + "-" if filename_prefix else "") + VOCAB_FILES_NAMES["vocab_file"]
472
+ )
473
+ merge_file = os.path.join(
474
+ save_directory, (filename_prefix + "-" if filename_prefix else "") + VOCAB_FILES_NAMES["merges_file"]
475
+ )
476
+
477
+ with open(vocab_file, "w", encoding="utf-8") as f:
478
+ f.write(json.dumps(self.encoder, indent=2, sort_keys=True, ensure_ascii=False) + "\n")
479
+
480
+ index = 0
481
+ with open(merge_file, "w", encoding="utf-8") as writer:
482
+ writer.write("#version: 0.2\n")
483
+ for bpe_tokens, token_index in sorted(self.bpe_ranks.items(), key=lambda kv: kv[1]):
484
+ if index != token_index:
485
+ logger.warning(
486
+ f"Saving vocabulary to {merge_file}: BPE merge indices are not consecutive."
487
+ " Please check that the tokenizer is not corrupted!"
488
+ )
489
+ index = token_index
490
+ writer.write(" ".join(bpe_tokens) + "\n")
491
+ index += 1
492
+
493
+ return vocab_file, merge_file
494
+
495
+ @add_end_docstrings(ENCODE_KWARGS_DOCSTRING, TAPEX_ENCODE_PLUS_ADDITIONAL_KWARGS_DOCSTRING)
496
+ def __call__(
497
+ self,
498
+ table: Union["pd.DataFrame", List["pd.DataFrame"]] = None,
499
+ query: Optional[Union[TextInput, List[TextInput]]] = None,
500
+ answer: Union[str, List[str]] = None,
501
+ add_special_tokens: bool = True,
502
+ padding: Union[bool, str, PaddingStrategy] = False,
503
+ truncation: Union[bool, str, TruncationStrategy] = None,
504
+ max_length: Optional[int] = None,
505
+ stride: int = 0,
506
+ pad_to_multiple_of: Optional[int] = None,
507
+ return_tensors: Optional[Union[str, TensorType]] = None,
508
+ return_token_type_ids: Optional[bool] = None,
509
+ return_attention_mask: Optional[bool] = None,
510
+ return_overflowing_tokens: bool = False,
511
+ return_special_tokens_mask: bool = False,
512
+ return_offsets_mapping: bool = False,
513
+ return_length: bool = False,
514
+ verbose: bool = True,
515
+ **kwargs,
516
+ ) -> BatchEncoding:
517
+ """
518
+ Main method to tokenize and prepare for the model one or several table-sequence pair(s).
519
+
520
+ Args:
521
+ table (`pd.DataFrame`, `List[pd.DataFrame]`):
522
+ Table(s) containing tabular data.
523
+ query (`str` or `List[str]`, *optional*):
524
+ Sentence or batch of sentences related to one or more table(s) to be encoded. Note that the number of
525
+ sentences must match the number of tables.
526
+ answer (`str` or `List[str]`, *optional*):
527
+ Optionally, the corresponding answer to the questions as supervision.
528
+ """
529
+
530
+ if table is not None:
531
+ return self.source_call_func(
532
+ table=table,
533
+ query=query,
534
+ answer=answer,
535
+ add_special_tokens=add_special_tokens,
536
+ padding=padding,
537
+ truncation=truncation,
538
+ max_length=max_length,
539
+ stride=stride,
540
+ pad_to_multiple_of=pad_to_multiple_of,
541
+ return_tensors=return_tensors,
542
+ return_token_type_ids=return_token_type_ids,
543
+ return_attention_mask=return_attention_mask,
544
+ return_overflowing_tokens=return_overflowing_tokens,
545
+ return_special_tokens_mask=return_special_tokens_mask,
546
+ return_offsets_mapping=return_offsets_mapping,
547
+ return_length=return_length,
548
+ verbose=verbose,
549
+ **kwargs,
550
+ )
551
+ elif answer is not None:
552
+ return self.target_call_func(
553
+ answer=answer,
554
+ add_special_tokens=add_special_tokens,
555
+ padding=padding,
556
+ truncation=truncation,
557
+ max_length=max_length,
558
+ stride=stride,
559
+ pad_to_multiple_of=pad_to_multiple_of,
560
+ return_tensors=return_tensors,
561
+ return_token_type_ids=return_token_type_ids,
562
+ return_attention_mask=return_attention_mask,
563
+ return_overflowing_tokens=return_overflowing_tokens,
564
+ return_special_tokens_mask=return_special_tokens_mask,
565
+ return_offsets_mapping=return_offsets_mapping,
566
+ return_length=return_length,
567
+ verbose=verbose,
568
+ **kwargs,
569
+ )
570
+ else:
571
+ raise ValueError("You need to provide either a `table` or an `answer`.")
572
+
573
+ def source_call_func(
574
+ self,
575
+ table: Union["pd.DataFrame", List["pd.DataFrame"]],
576
+ query: Optional[Union[TextInput, List[TextInput]]] = None,
577
+ answer: Union[str, List[str]] = None,
578
+ add_special_tokens: bool = True,
579
+ padding: Union[bool, str, PaddingStrategy] = False,
580
+ truncation: Union[bool, str, TruncationStrategy] = None,
581
+ max_length: Optional[int] = None,
582
+ stride: int = 0,
583
+ pad_to_multiple_of: Optional[int] = None,
584
+ return_tensors: Optional[Union[str, TensorType]] = None,
585
+ return_token_type_ids: Optional[bool] = None,
586
+ return_attention_mask: Optional[bool] = None,
587
+ return_overflowing_tokens: bool = False,
588
+ return_special_tokens_mask: bool = False,
589
+ return_offsets_mapping: bool = False,
590
+ return_length: bool = False,
591
+ verbose: bool = True,
592
+ **kwargs,
593
+ ) -> BatchEncoding:
594
+ # Input type checking for clearer error
595
+ valid_table = False
596
+ valid_query = False
597
+
598
+ # Check that table have a valid type
599
+ if isinstance(table, pd.DataFrame):
600
+ valid_table = True
601
+ elif isinstance(table, (list, tuple)) and isinstance(table[0], pd.DataFrame):
602
+ valid_table = True
603
+
604
+ # Check that query have a valid type
605
+ if query is None or isinstance(query, str):
606
+ valid_query = True
607
+ elif isinstance(query, (list, tuple)):
608
+ if len(query) == 0 or isinstance(query[0], str):
609
+ valid_query = True
610
+
611
+ if not valid_table:
612
+ raise ValueError(
613
+ "table input must of type `pd.DataFrame` (single example), `List[pd.DataFrame]` (batch of examples). "
614
+ )
615
+ if not valid_query:
616
+ raise ValueError("query input must of type `str` (single example), `List[str]` (batch of examples). ")
617
+ is_batched = isinstance(table, (list, tuple)) or isinstance(query, (list, tuple))
618
+
619
+ if is_batched:
620
+ return self.batch_encode_plus(
621
+ table=table,
622
+ query=query,
623
+ answer=answer,
624
+ add_special_tokens=add_special_tokens,
625
+ padding=padding,
626
+ truncation=truncation,
627
+ max_length=max_length,
628
+ pad_to_multiple_of=pad_to_multiple_of,
629
+ return_tensors=return_tensors,
630
+ return_token_type_ids=return_token_type_ids,
631
+ return_attention_mask=return_attention_mask,
632
+ return_overflowing_tokens=return_overflowing_tokens,
633
+ return_special_tokens_mask=return_special_tokens_mask,
634
+ return_offsets_mapping=return_offsets_mapping,
635
+ return_length=return_length,
636
+ verbose=verbose,
637
+ **kwargs,
638
+ )
639
+ else:
640
+ return self.encode_plus(
641
+ table=table,
642
+ query=query,
643
+ answer=answer,
644
+ add_special_tokens=add_special_tokens,
645
+ padding=padding,
646
+ truncation=truncation,
647
+ max_length=max_length,
648
+ pad_to_multiple_of=pad_to_multiple_of,
649
+ return_tensors=return_tensors,
650
+ return_token_type_ids=return_token_type_ids,
651
+ return_attention_mask=return_attention_mask,
652
+ return_overflowing_tokens=return_overflowing_tokens,
653
+ return_special_tokens_mask=return_special_tokens_mask,
654
+ return_offsets_mapping=return_offsets_mapping,
655
+ return_length=return_length,
656
+ verbose=verbose,
657
+ **kwargs,
658
+ )
659
+
660
+ @add_end_docstrings(ENCODE_KWARGS_DOCSTRING, TAPEX_ENCODE_PLUS_ADDITIONAL_KWARGS_DOCSTRING)
661
+ def batch_encode_plus(
662
+ self,
663
+ table: Union["pd.DataFrame", List["pd.DataFrame"]],
664
+ query: Optional[List[TextInput]] = None,
665
+ answer: List[str] = None,
666
+ add_special_tokens: bool = True,
667
+ padding: Union[bool, str, PaddingStrategy] = False,
668
+ truncation: Union[bool, str] = None,
669
+ max_length: Optional[int] = None,
670
+ pad_to_multiple_of: Optional[int] = None,
671
+ return_tensors: Optional[Union[str, TensorType]] = None,
672
+ return_token_type_ids: Optional[bool] = None,
673
+ return_attention_mask: Optional[bool] = None,
674
+ return_overflowing_tokens: bool = False,
675
+ return_special_tokens_mask: bool = False,
676
+ return_offsets_mapping: bool = False,
677
+ return_length: bool = False,
678
+ verbose: bool = True,
679
+ **kwargs,
680
+ ) -> BatchEncoding:
681
+ """
682
+ <Tip warning={true}>
683
+
684
+ This method is deprecated, `__call__` should be used instead.
685
+
686
+ </Tip>
687
+ """
688
+ # Backward compatibility for 'truncation_strategy', 'pad_to_max_length'
689
+ padding_strategy, truncation_strategy, max_length, kwargs = self._get_padding_truncation_strategies(
690
+ padding=padding,
691
+ truncation=truncation,
692
+ max_length=max_length,
693
+ pad_to_multiple_of=pad_to_multiple_of,
694
+ verbose=verbose,
695
+ **kwargs,
696
+ )
697
+
698
+ return self._batch_encode_plus(
699
+ table=table,
700
+ query=query,
701
+ answer=answer,
702
+ add_special_tokens=add_special_tokens,
703
+ padding_strategy=padding_strategy,
704
+ truncation_strategy=truncation_strategy,
705
+ max_length=max_length,
706
+ pad_to_multiple_of=pad_to_multiple_of,
707
+ return_tensors=return_tensors,
708
+ return_token_type_ids=return_token_type_ids,
709
+ return_attention_mask=return_attention_mask,
710
+ return_overflowing_tokens=return_overflowing_tokens,
711
+ return_special_tokens_mask=return_special_tokens_mask,
712
+ return_offsets_mapping=return_offsets_mapping,
713
+ return_length=return_length,
714
+ verbose=verbose,
715
+ **kwargs,
716
+ )
717
+
718
+ def _batch_encode_plus(
719
+ self,
720
+ table: Union["pd.DataFrame", List["pd.DataFrame"]],
721
+ query: Optional[List[TextInput]] = None,
722
+ answer: Optional[List[str]] = None,
723
+ add_special_tokens: bool = True,
724
+ padding_strategy: PaddingStrategy = PaddingStrategy.DO_NOT_PAD,
725
+ truncation_strategy: TruncationStrategy = TruncationStrategy.DO_NOT_TRUNCATE,
726
+ max_length: Optional[int] = None,
727
+ stride: int = 0,
728
+ pad_to_multiple_of: Optional[int] = None,
729
+ return_tensors: Optional[Union[str, TensorType]] = None,
730
+ return_token_type_ids: Optional[bool] = None,
731
+ return_attention_mask: Optional[bool] = None,
732
+ return_overflowing_tokens: bool = False,
733
+ return_special_tokens_mask: bool = False,
734
+ return_offsets_mapping: bool = False,
735
+ return_length: bool = False,
736
+ verbose: bool = True,
737
+ **kwargs,
738
+ ) -> BatchEncoding:
739
+ if return_offsets_mapping:
740
+ raise NotImplementedError(
741
+ "return_offset_mapping is not available when using Python tokenizers. "
742
+ "To use this feature, change your tokenizer to one deriving from "
743
+ "transformers.PreTrainedTokenizerFast."
744
+ )
745
+
746
+ if isinstance(table, pd.DataFrame) and isinstance(query, (list, tuple)):
747
+ # single table, many queries case
748
+ # duplicate table for every query
749
+ table = [table] * len(query)
750
+ if isinstance(table, (list, tuple)) and isinstance(query, str):
751
+ # many tables, single query case
752
+ # duplicate query for every table
753
+ query = [query] * len(table)
754
+
755
+ batch_outputs = self._batch_prepare_for_model(
756
+ table=table,
757
+ query=query,
758
+ answer=answer,
759
+ add_special_tokens=add_special_tokens,
760
+ padding_strategy=padding_strategy,
761
+ truncation_strategy=truncation_strategy,
762
+ max_length=max_length,
763
+ stride=stride,
764
+ pad_to_multiple_of=pad_to_multiple_of,
765
+ return_attention_mask=return_attention_mask,
766
+ return_token_type_ids=return_token_type_ids,
767
+ return_overflowing_tokens=return_overflowing_tokens,
768
+ return_special_tokens_mask=return_special_tokens_mask,
769
+ return_length=return_length,
770
+ return_tensors=return_tensors,
771
+ verbose=verbose,
772
+ )
773
+
774
+ return BatchEncoding(batch_outputs)
775
+
776
+ @add_end_docstrings(ENCODE_KWARGS_DOCSTRING, TAPEX_ENCODE_PLUS_ADDITIONAL_KWARGS_DOCSTRING)
777
+ def _batch_prepare_for_model(
778
+ self,
779
+ table: Union["pd.DataFrame", List["pd.DataFrame"]],
780
+ query: Optional[Union[TextInput, List[TextInput]]] = None,
781
+ answer: Optional[Union[str, List[str]]] = None,
782
+ add_special_tokens: bool = True,
783
+ padding_strategy: PaddingStrategy = PaddingStrategy.DO_NOT_PAD,
784
+ truncation_strategy: TruncationStrategy = TruncationStrategy.DO_NOT_TRUNCATE,
785
+ max_length: Optional[int] = None,
786
+ stride: int = 0,
787
+ pad_to_multiple_of: Optional[int] = None,
788
+ return_tensors: Optional[str] = None,
789
+ return_token_type_ids: Optional[bool] = None,
790
+ return_attention_mask: Optional[bool] = None,
791
+ return_overflowing_tokens: bool = False,
792
+ return_special_tokens_mask: bool = False,
793
+ return_length: bool = False,
794
+ verbose: bool = True,
795
+ ) -> BatchEncoding:
796
+ """
797
+ This method adds special tokens, truncates sequences if overflowing while taking into account the special
798
+ tokens and manages a moving window (with user defined stride) for overflowing tokens.
799
+ """
800
+ batch_outputs = {}
801
+ if answer is None:
802
+ answer = [None] * len(table)
803
+ for _table, _query, _answer in zip(table, query, answer):
804
+ text = self.prepare_table_query(
805
+ _table, _query, _answer, truncation_strategy=truncation_strategy, max_length=max_length
806
+ )
807
+
808
+ if self.do_lower_case:
809
+ text = text.lower()
810
+
811
+ tokens = self.tokenize(text)
812
+ outputs = self.prepare_for_model(
813
+ ids=self.convert_tokens_to_ids(tokens),
814
+ add_special_tokens=add_special_tokens,
815
+ padding=PaddingStrategy.DO_NOT_PAD.value, # we pad in batch afterwards
816
+ truncation=truncation_strategy.value,
817
+ max_length=max_length,
818
+ stride=stride,
819
+ pad_to_multiple_of=None, # we pad in batch afterwards
820
+ return_attention_mask=False, # we pad in batch afterwards
821
+ return_token_type_ids=return_token_type_ids,
822
+ return_overflowing_tokens=return_overflowing_tokens,
823
+ return_special_tokens_mask=return_special_tokens_mask,
824
+ return_length=return_length,
825
+ return_tensors=None, # We convert the whole batch to tensors at the end
826
+ prepend_batch_axis=False,
827
+ verbose=verbose,
828
+ )
829
+
830
+ for key, value in outputs.items():
831
+ if key not in batch_outputs:
832
+ batch_outputs[key] = []
833
+ batch_outputs[key].append(value)
834
+
835
+ batch_outputs = self.pad(
836
+ batch_outputs,
837
+ padding=padding_strategy.value,
838
+ max_length=max_length,
839
+ pad_to_multiple_of=pad_to_multiple_of,
840
+ return_attention_mask=return_attention_mask,
841
+ )
842
+
843
+ batch_outputs = BatchEncoding(batch_outputs, tensor_type=return_tensors)
844
+
845
+ return batch_outputs
846
+
847
+ @add_end_docstrings(ENCODE_KWARGS_DOCSTRING)
848
+ def encode(
849
+ self,
850
+ table: "pd.DataFrame",
851
+ query: Optional[TextInput] = None,
852
+ answer: Optional[str] = None,
853
+ add_special_tokens: bool = True,
854
+ padding: Union[bool, str, PaddingStrategy] = False,
855
+ truncation: Union[bool, str, TruncationStrategy, TapexTruncationStrategy] = None,
856
+ max_length: Optional[int] = None,
857
+ return_tensors: Optional[Union[str, TensorType]] = None,
858
+ **kwargs,
859
+ ) -> List[int]:
860
+ """
861
+ Prepare a table, a string and possible answer for the model. This method does not return token type IDs,
862
+ attention masks, etc. which are necessary for the model to work correctly. Use this method if you want to build
863
+ your processing on your own, otherwise refer to `__call__`.
864
+ """
865
+ encoded_inputs = self.encode_plus(
866
+ table,
867
+ query=query,
868
+ answer=answer,
869
+ add_special_tokens=add_special_tokens,
870
+ padding=padding,
871
+ truncation=truncation,
872
+ max_length=max_length,
873
+ return_tensors=return_tensors,
874
+ **kwargs,
875
+ )
876
+
877
+ return encoded_inputs["input_ids"]
878
+
879
+ @add_end_docstrings(ENCODE_KWARGS_DOCSTRING, TAPEX_ENCODE_PLUS_ADDITIONAL_KWARGS_DOCSTRING)
880
+ def encode_plus(
881
+ self,
882
+ table: "pd.DataFrame",
883
+ query: Optional[TextInput] = None,
884
+ answer: Optional[str] = None,
885
+ add_special_tokens: bool = True,
886
+ padding: Union[bool, str, PaddingStrategy] = False,
887
+ truncation: Union[bool, str] = None,
888
+ max_length: Optional[int] = None,
889
+ pad_to_multiple_of: Optional[int] = None,
890
+ return_tensors: Optional[Union[str, TensorType]] = None,
891
+ return_token_type_ids: Optional[bool] = None,
892
+ return_attention_mask: Optional[bool] = None,
893
+ return_special_tokens_mask: bool = False,
894
+ return_offsets_mapping: bool = False,
895
+ return_length: bool = False,
896
+ verbose: bool = True,
897
+ **kwargs,
898
+ ) -> BatchEncoding:
899
+ # Backward compatibility for 'truncation_strategy', 'pad_to_max_length'
900
+ padding_strategy, truncation_strategy, max_length, kwargs = self._get_padding_truncation_strategies(
901
+ padding=padding,
902
+ truncation=truncation,
903
+ max_length=max_length,
904
+ pad_to_multiple_of=pad_to_multiple_of,
905
+ verbose=verbose,
906
+ **kwargs,
907
+ )
908
+
909
+ return self._encode_plus(
910
+ table=table,
911
+ query=query,
912
+ answer=answer,
913
+ add_special_tokens=add_special_tokens,
914
+ padding_strategy=padding_strategy,
915
+ truncation_strategy=truncation_strategy,
916
+ max_length=max_length,
917
+ pad_to_multiple_of=pad_to_multiple_of,
918
+ return_tensors=return_tensors,
919
+ return_token_type_ids=return_token_type_ids,
920
+ return_attention_mask=return_attention_mask,
921
+ return_special_tokens_mask=return_special_tokens_mask,
922
+ return_offsets_mapping=return_offsets_mapping,
923
+ return_length=return_length,
924
+ verbose=verbose,
925
+ **kwargs,
926
+ )
927
+
928
+ def _encode_plus(
929
+ self,
930
+ table: "pd.DataFrame",
931
+ query: Optional[TextInput] = None,
932
+ answer: Optional[str] = None,
933
+ add_special_tokens: bool = True,
934
+ padding_strategy: PaddingStrategy = PaddingStrategy.DO_NOT_PAD,
935
+ truncation_strategy: TruncationStrategy = TruncationStrategy.DO_NOT_TRUNCATE,
936
+ max_length: Optional[int] = None,
937
+ stride: int = 0,
938
+ pad_to_multiple_of: Optional[int] = None,
939
+ return_tensors: Optional[Union[str, TensorType]] = None,
940
+ return_token_type_ids: Optional[bool] = None,
941
+ return_attention_mask: Optional[bool] = None,
942
+ return_overflowing_tokens: bool = False,
943
+ return_special_tokens_mask: bool = False,
944
+ return_offsets_mapping: bool = False,
945
+ return_length: bool = False,
946
+ verbose: bool = True,
947
+ **kwargs,
948
+ ) -> BatchEncoding:
949
+ if return_offsets_mapping:
950
+ raise NotImplementedError(
951
+ "return_offset_mapping is not available when using Python tokenizers. "
952
+ "To use this feature, change your tokenizer to one deriving from "
953
+ "transformers.PreTrainedTokenizerFast. "
954
+ "More information on available tokenizers at "
955
+ "https://github.com/huggingface/transformers/pull/2674"
956
+ )
957
+
958
+ text = self.prepare_table_query(
959
+ table, query, answer, truncation_strategy=truncation_strategy, max_length=max_length
960
+ )
961
+
962
+ # if necessary, perform lower case
963
+ if self.do_lower_case:
964
+ text = text.lower()
965
+
966
+ tokens = self.tokenize(text)
967
+
968
+ return self.prepare_for_model(
969
+ ids=self.convert_tokens_to_ids(tokens),
970
+ add_special_tokens=add_special_tokens,
971
+ padding=padding_strategy.value,
972
+ truncation=truncation_strategy.value,
973
+ max_length=max_length,
974
+ stride=stride,
975
+ pad_to_multiple_of=pad_to_multiple_of,
976
+ return_tensors=return_tensors,
977
+ prepend_batch_axis=True,
978
+ return_attention_mask=return_attention_mask,
979
+ return_token_type_ids=return_token_type_ids,
980
+ return_overflowing_tokens=return_overflowing_tokens,
981
+ return_special_tokens_mask=return_special_tokens_mask,
982
+ return_length=return_length,
983
+ verbose=verbose,
984
+ )
985
+
986
+ def target_call_func(
987
+ self,
988
+ answer: Union[str, List[str]],
989
+ add_special_tokens: bool = True,
990
+ padding: Union[bool, str, PaddingStrategy] = False,
991
+ truncation: Union[bool, str, TruncationStrategy] = None,
992
+ max_length: Optional[int] = None,
993
+ stride: int = 0,
994
+ pad_to_multiple_of: Optional[int] = None,
995
+ return_tensors: Optional[Union[str, TensorType]] = None,
996
+ return_token_type_ids: Optional[bool] = None,
997
+ return_attention_mask: Optional[bool] = None,
998
+ return_overflowing_tokens: bool = False,
999
+ return_special_tokens_mask: bool = False,
1000
+ return_offsets_mapping: bool = False,
1001
+ return_length: bool = False,
1002
+ verbose: bool = True,
1003
+ **kwargs,
1004
+ ) -> BatchEncoding:
1005
+ """
1006
+ The method tokenizes and prepares the answer label for the model.
1007
+
1008
+ Args:
1009
+ answer (`str` or `List[str]`):
1010
+ Corresponding answer supervision to the queries for training the model.
1011
+ """
1012
+ is_batched = isinstance(answer, (list, tuple))
1013
+
1014
+ if is_batched:
1015
+ return self.target_batch_encode_plus(
1016
+ answer=answer,
1017
+ add_special_tokens=add_special_tokens,
1018
+ padding=padding,
1019
+ truncation=truncation,
1020
+ max_length=max_length,
1021
+ pad_to_multiple_of=pad_to_multiple_of,
1022
+ return_tensors=return_tensors,
1023
+ return_token_type_ids=return_token_type_ids,
1024
+ return_attention_mask=return_attention_mask,
1025
+ return_overflowing_tokens=return_overflowing_tokens,
1026
+ return_special_tokens_mask=return_special_tokens_mask,
1027
+ return_offsets_mapping=return_offsets_mapping,
1028
+ return_length=return_length,
1029
+ verbose=verbose,
1030
+ **kwargs,
1031
+ )
1032
+ else:
1033
+ return self.target_encode_plus(
1034
+ answer=answer,
1035
+ add_special_tokens=add_special_tokens,
1036
+ padding=padding,
1037
+ truncation=truncation,
1038
+ max_length=max_length,
1039
+ pad_to_multiple_of=pad_to_multiple_of,
1040
+ return_tensors=return_tensors,
1041
+ return_token_type_ids=return_token_type_ids,
1042
+ return_attention_mask=return_attention_mask,
1043
+ return_overflowing_tokens=return_overflowing_tokens,
1044
+ return_special_tokens_mask=return_special_tokens_mask,
1045
+ return_offsets_mapping=return_offsets_mapping,
1046
+ return_length=return_length,
1047
+ verbose=verbose,
1048
+ **kwargs,
1049
+ )
1050
+
1051
+ def target_batch_encode_plus(
1052
+ self,
1053
+ answer: List[str],
1054
+ add_special_tokens: bool = True,
1055
+ padding: Union[bool, str, PaddingStrategy] = False,
1056
+ truncation: Union[bool, str] = None,
1057
+ max_length: Optional[int] = None,
1058
+ pad_to_multiple_of: Optional[int] = None,
1059
+ return_tensors: Optional[Union[str, TensorType]] = None,
1060
+ return_token_type_ids: Optional[bool] = None,
1061
+ return_attention_mask: Optional[bool] = None,
1062
+ return_overflowing_tokens: bool = False,
1063
+ return_special_tokens_mask: bool = False,
1064
+ return_offsets_mapping: bool = False,
1065
+ return_length: bool = False,
1066
+ verbose: bool = True,
1067
+ **kwargs,
1068
+ ) -> BatchEncoding:
1069
+ """
1070
+ Prepare answer strings for the model.
1071
+
1072
+ Args:
1073
+ answer `List[str]`:
1074
+ Corresponding answer supervision to the queries for training the model.
1075
+ """
1076
+ # Backward compatibility for 'truncation_strategy', 'pad_to_max_length'
1077
+ padding_strategy, truncation_strategy, max_length, kwargs = self._get_padding_truncation_strategies(
1078
+ padding=padding,
1079
+ truncation=truncation,
1080
+ max_length=max_length,
1081
+ pad_to_multiple_of=pad_to_multiple_of,
1082
+ verbose=verbose,
1083
+ **kwargs,
1084
+ )
1085
+
1086
+ return self._target_batch_encode_plus(
1087
+ answer=answer,
1088
+ add_special_tokens=add_special_tokens,
1089
+ padding_strategy=padding_strategy,
1090
+ truncation_strategy=truncation_strategy,
1091
+ max_length=max_length,
1092
+ pad_to_multiple_of=pad_to_multiple_of,
1093
+ return_tensors=return_tensors,
1094
+ return_token_type_ids=return_token_type_ids,
1095
+ return_attention_mask=return_attention_mask,
1096
+ return_overflowing_tokens=return_overflowing_tokens,
1097
+ return_special_tokens_mask=return_special_tokens_mask,
1098
+ return_offsets_mapping=return_offsets_mapping,
1099
+ return_length=return_length,
1100
+ verbose=verbose,
1101
+ **kwargs,
1102
+ )
1103
+
1104
+ def _target_batch_encode_plus(
1105
+ self,
1106
+ answer: List[str],
1107
+ add_special_tokens: bool = True,
1108
+ padding_strategy: PaddingStrategy = PaddingStrategy.DO_NOT_PAD,
1109
+ truncation_strategy: TruncationStrategy = TruncationStrategy.DO_NOT_TRUNCATE,
1110
+ max_length: Optional[int] = None,
1111
+ stride: int = 0,
1112
+ pad_to_multiple_of: Optional[int] = None,
1113
+ return_tensors: Optional[Union[str, TensorType]] = None,
1114
+ return_token_type_ids: Optional[bool] = None,
1115
+ return_attention_mask: Optional[bool] = None,
1116
+ return_overflowing_tokens: bool = False,
1117
+ return_special_tokens_mask: bool = False,
1118
+ return_offsets_mapping: bool = False,
1119
+ return_length: bool = False,
1120
+ verbose: bool = True,
1121
+ **kwargs,
1122
+ ) -> BatchEncoding:
1123
+ batch_outputs = {}
1124
+ for text in answer:
1125
+ if self.do_lower_case:
1126
+ text = text.lower()
1127
+
1128
+ tokens = self.tokenize(text)
1129
+ outputs = self.prepare_for_model(
1130
+ ids=self.convert_tokens_to_ids(tokens),
1131
+ add_special_tokens=add_special_tokens,
1132
+ padding=PaddingStrategy.DO_NOT_PAD.value, # we pad in batch afterwards
1133
+ truncation=truncation_strategy.value,
1134
+ max_length=max_length,
1135
+ stride=stride,
1136
+ pad_to_multiple_of=None, # we pad in batch afterwards
1137
+ return_attention_mask=False, # we pad in batch afterwards
1138
+ return_token_type_ids=return_token_type_ids,
1139
+ return_overflowing_tokens=return_overflowing_tokens,
1140
+ return_special_tokens_mask=return_special_tokens_mask,
1141
+ return_length=return_length,
1142
+ return_tensors=None, # We convert the whole batch to tensors at the end
1143
+ prepend_batch_axis=False,
1144
+ verbose=verbose,
1145
+ )
1146
+
1147
+ for key, value in outputs.items():
1148
+ if key not in batch_outputs:
1149
+ batch_outputs[key] = []
1150
+ batch_outputs[key].append(value)
1151
+
1152
+ batch_outputs = self.pad(
1153
+ batch_outputs,
1154
+ padding=padding_strategy.value,
1155
+ max_length=max_length,
1156
+ pad_to_multiple_of=pad_to_multiple_of,
1157
+ return_attention_mask=return_attention_mask,
1158
+ )
1159
+
1160
+ batch_outputs = BatchEncoding(batch_outputs, tensor_type=return_tensors)
1161
+
1162
+ return BatchEncoding(batch_outputs)
1163
+
1164
+ def target_encode(
1165
+ self,
1166
+ answer: str,
1167
+ add_special_tokens: bool = True,
1168
+ padding: Union[bool, str, PaddingStrategy] = False,
1169
+ truncation: Union[bool, str, TruncationStrategy, TapexTruncationStrategy] = None,
1170
+ max_length: Optional[int] = None,
1171
+ return_tensors: Optional[Union[str, TensorType]] = None,
1172
+ **kwargs,
1173
+ ) -> List[int]:
1174
+ """
1175
+ Prepare the answer string for the model. This method does not return token type IDs, attention masks, etc.
1176
+ which are necessary for the model to work correctly. Use this method if you want to build your processing on
1177
+ your own, otherwise refer to `__call__`.
1178
+
1179
+ Args:
1180
+ answer `str`:
1181
+ Corresponding answer supervision to the queries for training the model
1182
+ """
1183
+ encoded_outputs = self.target_encode_plus(
1184
+ answer=answer,
1185
+ add_special_tokens=add_special_tokens,
1186
+ padding=padding,
1187
+ truncation=truncation,
1188
+ max_length=max_length,
1189
+ return_tensors=return_tensors,
1190
+ **kwargs,
1191
+ )
1192
+
1193
+ return encoded_outputs["input_ids"]
1194
+
1195
+ def target_encode_plus(
1196
+ self,
1197
+ answer: str,
1198
+ add_special_tokens: bool = True,
1199
+ padding: Union[bool, str, PaddingStrategy] = False,
1200
+ truncation: Union[bool, str] = None,
1201
+ max_length: Optional[int] = None,
1202
+ pad_to_multiple_of: Optional[int] = None,
1203
+ return_tensors: Optional[Union[str, TensorType]] = None,
1204
+ return_token_type_ids: Optional[bool] = None,
1205
+ return_attention_mask: Optional[bool] = None,
1206
+ return_special_tokens_mask: bool = False,
1207
+ return_offsets_mapping: bool = False,
1208
+ return_length: bool = False,
1209
+ verbose: bool = True,
1210
+ **kwargs,
1211
+ ) -> BatchEncoding:
1212
+ """
1213
+ Prepare a answer string for the model.
1214
+
1215
+ Args:
1216
+ answer `str`:
1217
+ Corresponding answer supervision to the queries for training the model.
1218
+ """
1219
+ # Backward compatibility for 'truncation_strategy', 'pad_to_max_length'
1220
+ padding_strategy, truncation_strategy, max_length, kwargs = self._get_padding_truncation_strategies(
1221
+ padding=padding,
1222
+ truncation=truncation,
1223
+ max_length=max_length,
1224
+ pad_to_multiple_of=pad_to_multiple_of,
1225
+ verbose=verbose,
1226
+ **kwargs,
1227
+ )
1228
+
1229
+ return self._target_encode_plus(
1230
+ answer=answer,
1231
+ add_special_tokens=add_special_tokens,
1232
+ padding_strategy=padding_strategy,
1233
+ truncation_strategy=truncation_strategy,
1234
+ max_length=max_length,
1235
+ pad_to_multiple_of=pad_to_multiple_of,
1236
+ return_tensors=return_tensors,
1237
+ return_token_type_ids=return_token_type_ids,
1238
+ return_attention_mask=return_attention_mask,
1239
+ return_special_tokens_mask=return_special_tokens_mask,
1240
+ return_offsets_mapping=return_offsets_mapping,
1241
+ return_length=return_length,
1242
+ verbose=verbose,
1243
+ **kwargs,
1244
+ )
1245
+
1246
+ def _target_encode_plus(
1247
+ self,
1248
+ answer: str,
1249
+ add_special_tokens: bool = True,
1250
+ padding_strategy: PaddingStrategy = PaddingStrategy.DO_NOT_PAD,
1251
+ truncation_strategy: TruncationStrategy = TruncationStrategy.DO_NOT_TRUNCATE,
1252
+ max_length: Optional[int] = None,
1253
+ stride: int = 0,
1254
+ pad_to_multiple_of: Optional[int] = None,
1255
+ return_tensors: Optional[Union[str, TensorType]] = None,
1256
+ return_token_type_ids: Optional[bool] = None,
1257
+ return_attention_mask: Optional[bool] = None,
1258
+ return_overflowing_tokens: bool = False,
1259
+ return_special_tokens_mask: bool = False,
1260
+ return_offsets_mapping: bool = False,
1261
+ return_length: bool = False,
1262
+ verbose: bool = True,
1263
+ **kwargs,
1264
+ ) -> BatchEncoding:
1265
+ if return_offsets_mapping:
1266
+ raise NotImplementedError(
1267
+ "return_offset_mapping is not available when using Python tokenizers. "
1268
+ "To use this feature, change your tokenizer to one deriving from "
1269
+ "transformers.PreTrainedTokenizerFast. "
1270
+ "More information on available tokenizers at "
1271
+ "https://github.com/huggingface/transformers/pull/2674"
1272
+ )
1273
+
1274
+ text = answer
1275
+
1276
+ # if necessary, perform lower case
1277
+ if self.do_lower_case:
1278
+ text = text.lower()
1279
+
1280
+ tokens = self.tokenize(text)
1281
+
1282
+ return self.prepare_for_model(
1283
+ ids=self.convert_tokens_to_ids(tokens),
1284
+ add_special_tokens=add_special_tokens,
1285
+ padding=padding_strategy.value,
1286
+ truncation=truncation_strategy.value,
1287
+ max_length=max_length,
1288
+ stride=stride,
1289
+ pad_to_multiple_of=pad_to_multiple_of,
1290
+ return_tensors=return_tensors,
1291
+ prepend_batch_axis=True,
1292
+ return_attention_mask=return_attention_mask,
1293
+ return_token_type_ids=return_token_type_ids,
1294
+ return_overflowing_tokens=return_overflowing_tokens,
1295
+ return_special_tokens_mask=return_special_tokens_mask,
1296
+ return_length=return_length,
1297
+ verbose=verbose,
1298
+ )
1299
+
1300
+ def prepare_table_query(
1301
+ self,
1302
+ table,
1303
+ query,
1304
+ answer=None,
1305
+ truncation_strategy=Union[str, TruncationStrategy, TapexTruncationStrategy],
1306
+ max_length=None,
1307
+ ):
1308
+ """
1309
+ This method can be used to linearize a table and add a corresponding query.
1310
+
1311
+ Optionally, it also handles truncation of the table (cells).
1312
+
1313
+ An answer can be provided for more precise truncation.
1314
+ """
1315
+ if not table.empty:
1316
+ # step 1: create table dictionary
1317
+ table_content = {"header": list(table.columns), "rows": [list(row.values) for i, row in table.iterrows()]}
1318
+
1319
+ # step 2: modify table internally
1320
+ # always truncate table cells based on self.max_cell_length
1321
+ # optionally truncate rows if truncation_strategy is set to it
1322
+ self.truncate_table_cells(table_content, query, answer)
1323
+ if truncation_strategy == TapexTruncationStrategy.DROP_ROWS_TO_FIT:
1324
+ self.truncate_table_rows(table_content, query, answer, max_length=max_length)
1325
+
1326
+ # step 3: linearize table
1327
+ linear_table = self.table_linearize.process_table(table_content)
1328
+ else:
1329
+ linear_table = ""
1330
+
1331
+ if linear_table == "":
1332
+ logger.warning(
1333
+ "You provide an empty table, or all cells contain much tokens (e.g., >= 1024 tokens). "
1334
+ + f"Please carefully check the corresponding table with the query : {query}."
1335
+ )
1336
+ if query == "":
1337
+ logger.warning("You provide nothing to query with respect to the table.")
1338
+ # step 4: concatenate query with linear_table
1339
+ separator = " " if query and linear_table else ""
1340
+ joint_input = (query + separator + linear_table) if query else linear_table
1341
+
1342
+ return joint_input
1343
+
1344
+ def truncate_table_cells(self, table_content: Dict, question: str, answer: List):
1345
+ # TODO (Qian): is it possible to revert the original cell if it is in the final answer?
1346
+ cell_mapping = {}
1347
+ for row in table_content["rows"]:
1348
+ for i, cell in enumerate(row):
1349
+ truncate_cell = self.truncate_cell(cell)
1350
+ if truncate_cell is not None:
1351
+ cell_mapping[cell] = truncate_cell
1352
+ row[i] = truncate_cell
1353
+
1354
+ # modify the answer list
1355
+ if answer is not None:
1356
+ for i, case in enumerate(answer):
1357
+ if case in cell_mapping.keys():
1358
+ answer[i] = cell_mapping[case]
1359
+
1360
+ def truncate_cell(self, cell_value):
1361
+ # do not process on these cases
1362
+ if isinstance(cell_value, int) or isinstance(cell_value, float):
1363
+ return cell_value
1364
+ if cell_value.strip() != "":
1365
+ try_tokens = self.tokenize(cell_value)
1366
+ if len(try_tokens) >= self.max_cell_length:
1367
+ retain_tokens = try_tokens[: self.max_cell_length]
1368
+ retain_cell_value = self.convert_tokens_to_string(retain_tokens)
1369
+ return retain_cell_value
1370
+ else:
1371
+ return None
1372
+ else:
1373
+ return cell_value
1374
+
1375
+ def truncate_table_rows(
1376
+ self, table_content: Dict, question: str, answer: Optional[Union[str, List[str]]] = None, max_length=None
1377
+ ):
1378
+ """
1379
+ Args:
1380
+ table_content:
1381
+ {"header": xxx, "rows": xxx, "id" (Optionally): xxx}
1382
+
1383
+ question:
1384
+ natural language sentence
1385
+
1386
+ answer:
1387
+ if for training, is the supervision; otherwise will be empty
1388
+ """
1389
+ delete_ratio, remain_token_len = self.estimate_delete_ratio(table_content, question, max_length)
1390
+ # randomly delete unrelated rows
1391
+ self.delete_unrelated_rows(table_content, question, answer, delete_ratio)
1392
+ # guarantee the result < max_length
1393
+ maximum_keep_rows = 0
1394
+ for ind, row_example in enumerate(table_content["rows"]):
1395
+ value_string = self.table_linearize.process_row(row_example, ind + 1)
1396
+ value_token_len = len(self.tokenize(value_string))
1397
+ # over the size limit, and take action
1398
+ if value_token_len > remain_token_len:
1399
+ break
1400
+ remain_token_len -= value_token_len
1401
+ maximum_keep_rows += 1
1402
+ del table_content["rows"][maximum_keep_rows:]
1403
+
1404
+ def estimate_delete_ratio(self, table_content: Dict, question: str, max_length=None):
1405
+ if "header" not in table_content or "rows" not in table_content:
1406
+ raise ValueError("The table content should contain both 'header' and 'rows' keys.")
1407
+ # calculate the tokens of header, special tokens will only be pre-prepended into question
1408
+ question_tokens = self.tokenize(question, add_special_tokens=True)
1409
+ # calculate the tokens of header
1410
+ header_string = self.table_linearize.process_header(table_content["header"])
1411
+ header_tokens = self.tokenize(header_string, add_special_tokens=False)
1412
+ # split all cell values into tokens and see how many can be accommodated
1413
+ used_token_len = len(question_tokens) + len(header_tokens)
1414
+ # remaining token space for rows
1415
+ remain_token_len = max_length - used_token_len
1416
+
1417
+ value_string = ""
1418
+ for _, row_example in enumerate(table_content["rows"]):
1419
+ # use a general index to roughly estimate the overall token len
1420
+ value_string += self.table_linearize.process_row(row_example, 100) + " "
1421
+ value_token_len = len(self.tokenize(value_string))
1422
+
1423
+ if value_token_len < remain_token_len:
1424
+ # no row will be deleted
1425
+ return 0.0, remain_token_len
1426
+ else:
1427
+ # calc a roughly delete rate
1428
+ return 1.0 - remain_token_len / value_token_len, remain_token_len
1429
+
1430
+ def delete_unrelated_rows(self, table_content: Dict, question: str, answer: List, delete_ratio: float):
1431
+ """
1432
+ The argument answer is used only during training.
1433
+ """
1434
+ truncated_unrelated_indices = []
1435
+ related_indices = []
1436
+ if answer is None or len(answer) == 0:
1437
+ answer_set = set()
1438
+ else:
1439
+ answer_set = {ans_ex.lower() for ans_ex in answer}
1440
+ # add question key words into answer set
1441
+ if question is not None:
1442
+ answer_set.update(question.split())
1443
+ question_set = set(question.strip("?!.,").split(" "))
1444
+ row_max_len = len(table_content["rows"])
1445
+ for _row_idx, row in enumerate(table_content["rows"]):
1446
+ lower_row = {str(cell).lower() for cell in row}
1447
+ if len(lower_row & answer_set) == 0 and len(lower_row & question_set) == 0:
1448
+ truncated_unrelated_indices.append(_row_idx)
1449
+ else:
1450
+ # add neighbours to preserve information aggressively
1451
+ related_indices.extend([_row_idx - 2, _row_idx - 1, _row_idx, _row_idx + 1, _row_idx + 2])
1452
+
1453
+ # remove the neighbours
1454
+ truncated_unrelated_indices = [
1455
+ _row_idx for _row_idx in truncated_unrelated_indices if _row_idx not in related_indices
1456
+ ]
1457
+ # select some cases to drop
1458
+ drop_items = min(len(truncated_unrelated_indices), int(len(table_content["rows"]) * delete_ratio))
1459
+ drop_row_indices = random.choices(truncated_unrelated_indices, k=drop_items)
1460
+
1461
+ for _row_idx in reversed(range(row_max_len)):
1462
+ if _row_idx in drop_row_indices:
1463
+ del table_content["rows"][_row_idx]
1464
+
1465
+ # only when the drop ratio is too large, logging for warning.
1466
+ if "id" in table_content and len(drop_row_indices) > 0:
1467
+ logger.warning("Delete {:.2f} rows in table {}".format(len(drop_row_indices), table_content["id"]))
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/trajectory_transformer/__init__.py ADDED
@@ -0,0 +1,57 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # Copyright 2022 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 OptionalDependencyNotAvailable, _LazyModule, is_torch_available
17
+
18
+
19
+ _import_structure = {
20
+ "configuration_trajectory_transformer": ["TrajectoryTransformerConfig"],
21
+ }
22
+
23
+ try:
24
+ if not is_torch_available():
25
+ raise OptionalDependencyNotAvailable()
26
+ except OptionalDependencyNotAvailable:
27
+ pass
28
+ else:
29
+ _import_structure["modeling_trajectory_transformer"] = [
30
+ "TrajectoryTransformerModel",
31
+ "TrajectoryTransformerPreTrainedModel",
32
+ "load_tf_weights_in_trajectory_transformer",
33
+ ]
34
+
35
+
36
+ if TYPE_CHECKING:
37
+ from .configuration_trajectory_transformer import (
38
+ TrajectoryTransformerConfig,
39
+ )
40
+
41
+ try:
42
+ if not is_torch_available():
43
+ raise OptionalDependencyNotAvailable()
44
+ except OptionalDependencyNotAvailable:
45
+ pass
46
+ else:
47
+ from .modeling_trajectory_transformer import (
48
+ TrajectoryTransformerModel,
49
+ TrajectoryTransformerPreTrainedModel,
50
+ load_tf_weights_in_trajectory_transformer,
51
+ )
52
+
53
+
54
+ else:
55
+ import sys
56
+
57
+ sys.modules[__name__] = _LazyModule(__name__, globals()["__file__"], _import_structure, module_spec=__spec__)
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/trajectory_transformer/configuration_trajectory_transformer.py ADDED
@@ -0,0 +1,152 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2022 The Trajectory Transformers paper authors 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
+ """TrajectoryTransformer 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 TrajectoryTransformerConfig(PretrainedConfig):
25
+ r"""
26
+ This is the configuration class to store the configuration of a [`TrajectoryTransformerModel`]. It is used to
27
+ instantiate an TrajectoryTransformer model according to the specified arguments, defining the model architecture.
28
+ Instantiating a configuration with the defaults will yield a similar configuration to that of the
29
+ TrajectoryTransformer
30
+ [CarlCochet/trajectory-transformer-halfcheetah-medium-v2](https://huggingface.co/CarlCochet/trajectory-transformer-halfcheetah-medium-v2)
31
+ 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 100):
39
+ Vocabulary size of the TrajectoryTransformer model. Defines the number of different tokens that can be
40
+ represented by the `trajectories` passed when calling [`TrajectoryTransformerModel`]
41
+ action_weight (`int`, *optional*, defaults to 5):
42
+ Weight of the action in the loss function
43
+ reward_weight (`int`, *optional*, defaults to 1):
44
+ Weight of the reward in the loss function
45
+ value_weight (`int`, *optional*, defaults to 1):
46
+ Weight of the value in the loss function
47
+ block_size (`int`, *optional*, defaults to 249):
48
+ Size of the blocks in the trajectory transformer.
49
+ action_dim (`int`, *optional*, defaults to 6):
50
+ Dimension of the action space.
51
+ observation_dim (`int`, *optional*, defaults to 17):
52
+ Dimension of the observation space.
53
+ transition_dim (`int`, *optional*, defaults to 25):
54
+ Dimension of the transition space.
55
+ n_layer (`int`, *optional*, defaults to 4):
56
+ Number of hidden layers in the Transformer encoder.
57
+ n_head (`int`, *optional*, defaults to 4):
58
+ Number of attention heads for each attention layer in the Transformer encoder.
59
+ n_embd (`int`, *optional*, defaults to 128):
60
+ Dimensionality of the embeddings and hidden states.
61
+ resid_pdrop (`float`, *optional*, defaults to 0.1):
62
+ The dropout probability for all fully connected layers in the embeddings, encoder, and pooler.
63
+ embd_pdrop (`int`, *optional*, defaults to 0.1):
64
+ The dropout ratio for the embeddings.
65
+ attn_pdrop (`float`, *optional*, defaults to 0.1):
66
+ The dropout ratio for the attention.
67
+ hidden_act (`str` or `function`, *optional*, defaults to `"gelu"`):
68
+ The non-linear activation function (function or string) in the encoder and pooler. If string, `"gelu"`,
69
+ `"relu"`, `"selu"` and `"gelu_new"` are supported.
70
+ max_position_embeddings (`int`, *optional*, defaults to 512):
71
+ The maximum sequence length that this model might ever be used with. Typically set this to something large
72
+ just in case (e.g., 512 or 1024 or 2048).
73
+ initializer_range (`float`, *optional*, defaults to 0.02):
74
+ The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
75
+ layer_norm_eps (`float`, *optional*, defaults to 1e-12):
76
+ The epsilon used by the layer normalization layers.
77
+ kaiming_initializer_range (`float, *optional*, defaults to 1):
78
+ A coefficient scaling the negative slope of the kaiming initializer rectifier for EinLinear layers.
79
+ use_cache (`bool`, *optional*, defaults to `True`):
80
+ Whether or not the model should return the last key/values attentions (not used by all models). Only
81
+ relevant if `config.is_decoder=True`.
82
+ Example:
83
+
84
+ ```python
85
+ >>> from transformers import TrajectoryTransformerConfig, TrajectoryTransformerModel
86
+
87
+ >>> # Initializing a TrajectoryTransformer CarlCochet/trajectory-transformer-halfcheetah-medium-v2 style configuration
88
+ >>> configuration = TrajectoryTransformerConfig()
89
+
90
+ >>> # Initializing a model (with random weights) from the CarlCochet/trajectory-transformer-halfcheetah-medium-v2 style configuration
91
+ >>> model = TrajectoryTransformerModel(configuration)
92
+
93
+ >>> # Accessing the model configuration
94
+ >>> configuration = model.config
95
+ ```"""
96
+
97
+ model_type = "trajectory_transformer"
98
+ keys_to_ignore_at_inference = ["past_key_values"]
99
+ attribute_map = {
100
+ "hidden_size": "n_embd",
101
+ "num_attention_heads": "n_head",
102
+ "num_hidden_layers": "n_layer",
103
+ }
104
+
105
+ def __init__(
106
+ self,
107
+ vocab_size=100,
108
+ action_weight=5,
109
+ reward_weight=1,
110
+ value_weight=1,
111
+ block_size=249,
112
+ action_dim=6,
113
+ observation_dim=17,
114
+ transition_dim=25,
115
+ n_layer=4,
116
+ n_head=4,
117
+ n_embd=128,
118
+ embd_pdrop=0.1,
119
+ attn_pdrop=0.1,
120
+ resid_pdrop=0.1,
121
+ learning_rate=0.0006,
122
+ max_position_embeddings=512,
123
+ initializer_range=0.02,
124
+ layer_norm_eps=1e-12,
125
+ kaiming_initializer_range=1,
126
+ use_cache=True,
127
+ pad_token_id=1,
128
+ bos_token_id=50256,
129
+ eos_token_id=50256,
130
+ **kwargs,
131
+ ):
132
+ self.vocab_size = vocab_size
133
+ self.action_weight = action_weight
134
+ self.reward_weight = reward_weight
135
+ self.value_weight = value_weight
136
+ self.max_position_embeddings = max_position_embeddings
137
+ self.block_size = block_size
138
+ self.action_dim = action_dim
139
+ self.observation_dim = observation_dim
140
+ self.transition_dim = transition_dim
141
+ self.learning_rate = learning_rate
142
+ self.n_layer = n_layer
143
+ self.n_head = n_head
144
+ self.n_embd = n_embd
145
+ self.embd_pdrop = embd_pdrop
146
+ self.attn_pdrop = attn_pdrop
147
+ self.resid_pdrop = resid_pdrop
148
+ self.initializer_range = initializer_range
149
+ self.layer_norm_eps = layer_norm_eps
150
+ self.kaiming_initializer_range = kaiming_initializer_range
151
+ self.use_cache = use_cache
152
+ super().__init__(pad_token_id=pad_token_id, bos_token_id=bos_token_id, eos_token_id=eos_token_id, **kwargs)
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/trajectory_transformer/convert_trajectory_transformer_original_pytorch_checkpoint_to_pytorch.py ADDED
@@ -0,0 +1,70 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2022 The Trajectory Transformers paper authors 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
+ """TrajectoryTransformer pytorch checkpoint conversion"""
16
+
17
+ import torch
18
+ import trajectory.utils as utils
19
+
20
+ from transformers import TrajectoryTransformerModel
21
+
22
+
23
+ class Parser(utils.Parser):
24
+ dataset: str = "halfcheetah-medium-expert-v2"
25
+ config: str = "config.offline"
26
+
27
+
28
+ def convert_trajectory_transformer_original_pytorch_checkpoint_to_pytorch(logbase, dataset, loadpath, epoch, device):
29
+ """Converting Sequential blocks to ModuleList"""
30
+
31
+ gpt, gpt_epoch = utils.load_model(logbase, dataset, loadpath, epoch=epoch, device=device)
32
+ trajectory_transformer = TrajectoryTransformerModel(gpt.config)
33
+
34
+ trajectory_transformer.tok_emb.load_state_dict(gpt.tok_emb.state_dict())
35
+ trajectory_transformer.pos_emb = gpt.pos_emb
36
+ trajectory_transformer.drop.load_state_dict(gpt.drop.state_dict())
37
+ trajectory_transformer.ln_f.load_state_dict(gpt.ln_f.state_dict())
38
+ trajectory_transformer.head.load_state_dict(gpt.head.state_dict())
39
+
40
+ for i, block in enumerate(gpt.blocks):
41
+ trajectory_transformer.blocks[i].ln1.load_state_dict(gpt.blocks[i].ln1.state_dict())
42
+ trajectory_transformer.blocks[i].ln2.load_state_dict(gpt.blocks[i].ln2.state_dict())
43
+ trajectory_transformer.blocks[i].attn.load_state_dict(gpt.blocks[i].attn.state_dict())
44
+
45
+ trajectory_transformer.blocks[i].l1.load_state_dict(gpt.blocks[i].mlp[0].state_dict())
46
+ trajectory_transformer.blocks[i].act.load_state_dict(gpt.blocks[i].mlp[1].state_dict())
47
+ trajectory_transformer.blocks[i].l2.load_state_dict(gpt.blocks[i].mlp[2].state_dict())
48
+ trajectory_transformer.blocks[i].drop.load_state_dict(gpt.blocks[i].mlp[3].state_dict())
49
+
50
+ torch.save(trajectory_transformer.state_dict(), "pytorch_model.bin")
51
+
52
+
53
+ if __name__ == "__main__":
54
+ """
55
+ To run this script you will need to install the original repository to run the original model. You can find it
56
+ here: https://github.com/jannerm/trajectory-transformer From this repository code you can also download the
57
+ original pytorch checkpoints.
58
+
59
+ Run with the command:
60
+
61
+ ```sh
62
+ >>> python convert_trajectory_transformer_original_pytorch_checkpoint_to_pytorch.py --dataset <dataset_name>
63
+ ... --gpt_loadpath <path_to_original_pytorch_checkpoint>
64
+ ```
65
+ """
66
+
67
+ args = Parser().parse_args("plan")
68
+ convert_trajectory_transformer_original_pytorch_checkpoint_to_pytorch(
69
+ args.logbase, args.dataset, args.gpt_loadpath, args.gpt_epoch, args.device
70
+ )
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/trajectory_transformer/modeling_trajectory_transformer.py ADDED
@@ -0,0 +1,603 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2022 The Trajectory Transformers paper authors 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 TrajectoryTransformer model."""
16
+
17
+ import math
18
+ import os
19
+ from dataclasses import dataclass
20
+ from typing import Optional, Tuple, Union
21
+
22
+ import numpy as np
23
+ import torch
24
+ import torch.utils.checkpoint
25
+ from torch import nn
26
+ from torch.nn import functional as F
27
+
28
+ from ....modeling_utils import PreTrainedModel
29
+ from ....utils import (
30
+ ModelOutput,
31
+ add_start_docstrings,
32
+ add_start_docstrings_to_model_forward,
33
+ logging,
34
+ replace_return_docstrings,
35
+ )
36
+ from .configuration_trajectory_transformer import TrajectoryTransformerConfig
37
+
38
+
39
+ logger = logging.get_logger(__name__)
40
+
41
+ _CHECKPOINT_FOR_DOC = "CarlCochet/trajectory-transformer-halfcheetah-medium-v2"
42
+ _CONFIG_FOR_DOC = "TrajectoryTransformerConfig"
43
+
44
+
45
+ def load_tf_weights_in_trajectory_transformer(model, config, tf_checkpoint_path):
46
+ """Load tf checkpoints in a pytorch model."""
47
+ try:
48
+ import re
49
+
50
+ import numpy as np
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
+ names = []
63
+ arrays = []
64
+ for name, shape in init_vars:
65
+ logger.info(f"Loading TF weight {name} with shape {shape}")
66
+ array = tf.train.load_variable(tf_path, name)
67
+ names.append(name)
68
+ arrays.append(array)
69
+
70
+ for name, array in zip(names, arrays):
71
+ name = name.split("/")
72
+ # adam_v and adam_m are variables used in AdamWeightDecayOptimizer to calculated m and v
73
+ # which are not required for using pretrained model
74
+ if any(
75
+ n in ["adam_v", "adam_m", "AdamWeightDecayOptimizer", "AdamWeightDecayOptimizer_1", "global_step"]
76
+ for n in name
77
+ ):
78
+ logger.info(f"Skipping {'/'.join(name)}")
79
+ continue
80
+ pointer = model
81
+ for m_name in name:
82
+ if re.fullmatch(r"[A-Za-z]+_\d+", m_name):
83
+ scope_names = re.split(r"_(\d+)", m_name)
84
+ else:
85
+ scope_names = [m_name]
86
+ if scope_names[0] == "kernel" or scope_names[0] == "gamma":
87
+ pointer = getattr(pointer, "weight")
88
+ elif scope_names[0] == "output_bias" or scope_names[0] == "beta":
89
+ pointer = getattr(pointer, "bias")
90
+ elif scope_names[0] == "output_weights":
91
+ pointer = getattr(pointer, "weight")
92
+ elif scope_names[0] == "squad":
93
+ pointer = getattr(pointer, "classifier")
94
+ else:
95
+ try:
96
+ pointer = getattr(pointer, scope_names[0])
97
+ except AttributeError:
98
+ logger.info(f"Skipping {'/'.join(name)}")
99
+ continue
100
+ if len(scope_names) >= 2:
101
+ num = int(scope_names[1])
102
+ pointer = pointer[num]
103
+ if m_name[-11:] == "_embeddings":
104
+ pointer = getattr(pointer, "weight")
105
+ elif m_name == "kernel":
106
+ array = np.transpose(array)
107
+ try:
108
+ if pointer.shape != array.shape:
109
+ raise ValueError(f"Pointer shape {pointer.shape} and array shape {array.shape} mismatched")
110
+ except AssertionError as e:
111
+ e.args += (pointer.shape, array.shape)
112
+ raise
113
+ logger.info(f"Initialize PyTorch weight {name}")
114
+ pointer.data = torch.from_numpy(array)
115
+ return model
116
+
117
+
118
+ @dataclass
119
+ class TrajectoryTransformerOutput(ModelOutput):
120
+ """
121
+ Base class for model's outputs that also contains a pooling of the last hidden states.
122
+
123
+ Args:
124
+ loss (`torch.FloatTensor` of shape `(1,)`, *optional*, returned when `labels` is provided):
125
+ Language modeling loss.
126
+ logits (`torch.FloatTensor` of shape `(batch_size, sequence_length, config.vocab_size)`):
127
+ Prediction scores of the language modeling head (scores for each vocabulary token before SoftMax).
128
+ past_key_values (`Tuple[Tuple[torch.Tensor]]`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`):
129
+ Tuple of length `config.n_layers`, containing tuples of tensors of shape `(batch_size, num_heads,
130
+ sequence_length, embed_size_per_head)`). Contains pre-computed hidden-states (key and values in the
131
+ attention blocks) that can be used (see `past_key_values` input) to speed up sequential decoding.
132
+ hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
133
+ Tuple of `torch.FloatTensor` (one for the output of the embeddings + one for the output of each layer) of
134
+ shape `(batch_size, sequence_length, hidden_size)`. Hidden-states of the model at the output of each layer
135
+ plus the initial embedding outputs.
136
+ attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
137
+ Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
138
+ sequence_length)`. GPT2Attentions weights after the attention softmax, used to compute the weighted average
139
+ in the self-attention heads.
140
+ """
141
+
142
+ loss: Optional[torch.FloatTensor] = None
143
+ logits: torch.FloatTensor = None
144
+ past_key_values: Optional[Tuple[Tuple[torch.FloatTensor]]] = None
145
+ hidden_states: Optional[Tuple[torch.FloatTensor]] = None
146
+ attentions: Optional[Tuple[torch.FloatTensor]] = None
147
+
148
+
149
+ class TrajectoryTransformerPreTrainedModel(PreTrainedModel):
150
+ """
151
+ An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained
152
+ models.
153
+ """
154
+
155
+ config_class = TrajectoryTransformerConfig
156
+ load_tf_weights = load_tf_weights_in_trajectory_transformer
157
+ base_model_prefix = "trajectory_transformer"
158
+ main_input_name = "trajectories"
159
+ supports_gradient_checkpointing = True
160
+
161
+ def _init_weights(self, module):
162
+ if isinstance(module, (nn.Linear, nn.Embedding)):
163
+ module.weight.data.normal_(mean=0.0, std=self.config.initializer_range)
164
+ if isinstance(module, nn.Linear) and module.bias is not None:
165
+ module.bias.data.zero_()
166
+ elif isinstance(module, nn.LayerNorm):
167
+ module.bias.data.zero_()
168
+ module.weight.data.fill_(1.0)
169
+ elif isinstance(module, EinLinear):
170
+ for i in range(module.n_models):
171
+ nn.init.kaiming_uniform_(module.weight[i], a=math.sqrt(5) / self.config.kaiming_initializer_range)
172
+ if module.bias is not None:
173
+ fan_in, _ = nn.init._calculate_fan_in_and_fan_out(module.weight[i])
174
+ bound = (1 / math.sqrt(fan_in)) * self.config.initializer_range
175
+ nn.init.uniform_(module.bias[i], -bound, bound)
176
+
177
+
178
+ TRAJECTORY_TRANSFORMER_START_DOCSTRING = r"""
179
+ This model is a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) sub-class. Use
180
+ it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage and
181
+ behavior.
182
+
183
+ Parameters:
184
+ config ([`TrajectoryTransformerConfig`]): Model configuration class with all the parameters of the model.
185
+ Initializing with a config file does not load the weights associated with the model, only the
186
+ configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights.
187
+ """
188
+
189
+ TRAJECTORY_TRANSFORMER_INPUTS_DOCSTRING = r"""
190
+ Args:
191
+ trajectories (`torch.LongTensor` of shape `(batch_size, sequence_length)`):
192
+ Batch of trajectories, where a trajectory is a sequence of states, actions and rewards.
193
+ past_key_values (`Tuple[Tuple[torch.Tensor]]` of length `config.n_layers`, *optional*):
194
+ Contains precomputed hidden-states (key and values in the attention blocks) as computed by the model (see
195
+ `past_key_values` output below). Can be used to speed up sequential decoding. The `input_ids` which have
196
+ their past given to this model should not be passed as `input_ids` as they have already been computed.
197
+ targets (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*):
198
+ Desired targets used to compute the loss.
199
+ attention_mask (`torch.FloatTensor` of shape `(batch_size, sequence_length)`, *optional*):
200
+ Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`:
201
+
202
+ - 1 for tokens that are **not masked**,
203
+ - 0 for tokens that are **masked**.
204
+
205
+ [What are attention masks?](../glossary#attention-mask)
206
+ use_cache (`bool`, *optional*):
207
+ If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding (see
208
+ `past_key_values`).
209
+ output_attentions (`bool`, *optional*):
210
+ Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned
211
+ tensors for more detail.
212
+ output_hidden_states (`bool`, *optional*):
213
+ Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
214
+ more detail.
215
+ return_dict (`bool`, *optional*):
216
+ Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
217
+ """
218
+
219
+
220
+ class EinLinear(nn.Module):
221
+ def __init__(self, n_models, in_features, out_features, bias):
222
+ super().__init__()
223
+ self.n_models = n_models
224
+ self.out_features = out_features
225
+ self.in_features = in_features
226
+ self.weight = nn.Parameter(torch.Tensor(n_models, out_features, in_features))
227
+ if bias:
228
+ self.bias = nn.Parameter(torch.Tensor(n_models, out_features))
229
+ else:
230
+ self.register_parameter("bias", None)
231
+
232
+ def reset_parameters(self):
233
+ for i in range(self.n_models):
234
+ nn.init.kaiming_uniform_(self.weight[i], a=math.sqrt(5))
235
+ if self.bias is not None:
236
+ fan_in, _ = nn.init._calculate_fan_in_and_fan_out(self.weight[i])
237
+ bound = 1 / math.sqrt(fan_in)
238
+ nn.init.uniform_(self.bias[i], -bound, bound)
239
+
240
+ def forward(self, input):
241
+ """
242
+ Args:
243
+ input (`torch.FloatTensor` of shape `(B, n_models, input_dim)`):
244
+ The input to the layer.
245
+ """
246
+ # [ batch_size x n_models x output_dim ]
247
+ output = torch.einsum("eoi,bei->beo", self.weight, input)
248
+ if self.bias is not None:
249
+ raise RuntimeError()
250
+ return output
251
+
252
+
253
+ class CausalSelfAttention(nn.Module):
254
+ def __init__(self, config):
255
+ super().__init__()
256
+
257
+ if config.n_embd % config.n_head != 0:
258
+ raise ValueError(f"n_head ({config.n_head}) should be a divisor of n_embd ({config.n_embd})")
259
+
260
+ # key, query, value projections for all heads
261
+ self.key = nn.Linear(config.n_embd, config.n_embd)
262
+ self.query = nn.Linear(config.n_embd, config.n_embd)
263
+ self.value = nn.Linear(config.n_embd, config.n_embd)
264
+
265
+ # regularization
266
+ self.attn_drop = nn.Dropout(config.attn_pdrop)
267
+ self.resid_drop = nn.Dropout(config.resid_pdrop)
268
+
269
+ # output projection
270
+ self.proj = nn.Linear(config.n_embd, config.n_embd)
271
+
272
+ # causal mask to ensure that attention is only applied to the left in the input sequence
273
+ self.register_buffer(
274
+ "mask",
275
+ torch.tril(torch.ones(config.block_size, config.block_size)).view(
276
+ 1, 1, config.block_size, config.block_size
277
+ ),
278
+ persistent=False,
279
+ )
280
+
281
+ # mask previous value estimates
282
+ joined_dim = config.observation_dim + config.action_dim + 2
283
+ self.mask.squeeze()[:, joined_dim - 1 :: joined_dim] = 0
284
+
285
+ self.n_head = config.n_head
286
+
287
+ def forward(
288
+ self,
289
+ hidden_states: Optional[Tuple[torch.FloatTensor]],
290
+ layer_past: Optional[Tuple[torch.Tensor]] = None,
291
+ use_cache: Optional[bool] = False,
292
+ output_attentions: Optional[bool] = False,
293
+ ):
294
+ batch_size, sequence_length, embedding_dim = hidden_states.size()
295
+
296
+ # calculate query, key, values for all heads in batch and move head forward to be the batch dim
297
+ # [ batch_size x n_heads x sequence_length x head_dim ]
298
+ key = (
299
+ self.key(hidden_states)
300
+ .view(batch_size, sequence_length, self.n_head, embedding_dim // self.n_head)
301
+ .transpose(1, 2)
302
+ )
303
+ query = (
304
+ self.query(hidden_states)
305
+ .view(batch_size, sequence_length, self.n_head, embedding_dim // self.n_head)
306
+ .transpose(1, 2)
307
+ )
308
+ value = (
309
+ self.value(hidden_states)
310
+ .view(batch_size, sequence_length, self.n_head, embedding_dim // self.n_head)
311
+ .transpose(1, 2)
312
+ )
313
+
314
+ if layer_past is not None:
315
+ past_key, past_value = layer_past
316
+ key = torch.cat((past_key, key), dim=-2)
317
+ value = torch.cat((past_value, value), dim=-2)
318
+
319
+ if use_cache is True:
320
+ present = (key, value)
321
+ else:
322
+ present = None
323
+
324
+ # causal self-attention
325
+ # [ batch_size x n_heads x sequence_length x sequence_length ]
326
+ attn_weights = (torch.matmul(query, key.transpose(-2, -1))) * (1.0 / math.sqrt(key.size(-1)))
327
+ attn_weights = attn_weights.masked_fill(
328
+ self.mask[:, :, :sequence_length, :sequence_length] == 0, torch.finfo(attn_weights.dtype).min
329
+ )
330
+ attn_weights = F.softmax(attn_weights, dim=-1)
331
+ self._attn_map = attn_weights.clone()
332
+ attn_weights = self.attn_drop(attn_weights)
333
+
334
+ output = torch.matmul(attn_weights, value)
335
+ # [ batch_size x sequence_length x embedding_dim ]
336
+ # re-assemble all head outputs side by side
337
+ output = output.transpose(1, 2).contiguous().view(batch_size, sequence_length, embedding_dim)
338
+
339
+ # output projection
340
+ output = self.resid_drop(self.proj(output))
341
+
342
+ outputs = (output, present)
343
+ if output_attentions:
344
+ outputs += (attn_weights,)
345
+
346
+ return outputs
347
+
348
+
349
+ class Block(nn.Module):
350
+ def __init__(self, config):
351
+ super().__init__()
352
+ self.ln1 = nn.LayerNorm(config.n_embd)
353
+ self.ln2 = nn.LayerNorm(config.n_embd)
354
+ self.attn = CausalSelfAttention(config)
355
+
356
+ # MLP
357
+ self.l1 = nn.Linear(config.n_embd, 4 * config.n_embd)
358
+ self.act = nn.GELU()
359
+ self.l2 = nn.Linear(4 * config.n_embd, config.n_embd)
360
+ self.drop = nn.Dropout(config.resid_pdrop)
361
+
362
+ def forward(
363
+ self,
364
+ hidden_states: Optional[Tuple[torch.FloatTensor]],
365
+ layer_past: Optional[Tuple[torch.Tensor]] = None,
366
+ use_cache: Optional[bool] = False,
367
+ output_attentions: Optional[bool] = False,
368
+ ):
369
+ residual = hidden_states
370
+ hidden_states = self.ln1(hidden_states)
371
+
372
+ attn_outputs = self.attn(
373
+ hidden_states, layer_past=layer_past, use_cache=use_cache, output_attentions=output_attentions
374
+ )
375
+ attn_output = attn_outputs[0]
376
+ outputs = attn_outputs[1:]
377
+ hidden_states = attn_output + residual
378
+
379
+ residual = hidden_states
380
+ hidden_states = self.ln2(hidden_states)
381
+ hidden_states = self.l1(hidden_states)
382
+ hidden_states = self.act(hidden_states)
383
+ hidden_states = self.l2(hidden_states)
384
+ hidden_states = residual + self.drop(hidden_states)
385
+
386
+ if use_cache:
387
+ outputs = (hidden_states,) + outputs
388
+ else:
389
+ outputs = (hidden_states,) + outputs[1:]
390
+
391
+ return outputs
392
+
393
+
394
+ @add_start_docstrings(
395
+ "The bare TrajectoryTransformer Model transformer outputting raw hidden-states without any specific head on top.",
396
+ TRAJECTORY_TRANSFORMER_START_DOCSTRING,
397
+ )
398
+ class TrajectoryTransformerModel(TrajectoryTransformerPreTrainedModel):
399
+ """the full GPT language model, with a context size of block_size"""
400
+
401
+ def __init__(self, config):
402
+ super().__init__(config)
403
+
404
+ # input embedding stem (+1 for stop token)
405
+ self.tok_emb = nn.Embedding(config.vocab_size * config.transition_dim + 1, config.n_embd)
406
+
407
+ self.pos_emb = nn.Parameter(torch.zeros(1, config.block_size, config.n_embd))
408
+ self.drop = nn.Dropout(config.embd_pdrop)
409
+ # transformer
410
+ self.blocks = nn.ModuleList([Block(config) for _ in range(config.n_layer)])
411
+ # decoder head
412
+ self.ln_f = nn.LayerNorm(config.n_embd)
413
+ self.head = EinLinear(config.transition_dim, config.n_embd, config.vocab_size + 1, bias=False)
414
+
415
+ self.vocab_size = config.vocab_size
416
+ self.stop_token = config.vocab_size * config.transition_dim
417
+ self.block_size = config.block_size
418
+
419
+ self.observation_dim = config.observation_dim
420
+ self.action_dim = config.action_dim
421
+ self.transition_dim = config.transition_dim
422
+ self.embedding_dim = config.n_embd
423
+
424
+ self.action_weight = config.action_weight
425
+ self.reward_weight = config.reward_weight
426
+ self.value_weight = config.value_weight
427
+
428
+ self.gradient_checkpointing = False
429
+
430
+ self.post_init()
431
+
432
+ def get_block_size(self):
433
+ return self.block_size
434
+
435
+ def offset_tokens(self, trajectories):
436
+ _, sequence_length = trajectories.shape
437
+
438
+ n_states = int(np.ceil(sequence_length / self.transition_dim))
439
+
440
+ offsets = torch.arange(self.transition_dim) * self.vocab_size
441
+ offsets = offsets.repeat(n_states).to(trajectories.device)
442
+
443
+ offset_trajectories = trajectories + offsets[:sequence_length]
444
+ offset_trajectories[trajectories == self.vocab_size] = self.stop_token
445
+ return offset_trajectories
446
+
447
+ def pad_to_full_observation(self, hidden_states):
448
+ batch_size, sequence_length, _ = hidden_states.shape
449
+
450
+ n_pad = (self.transition_dim - sequence_length % self.transition_dim) % self.transition_dim
451
+ padding = torch.zeros(batch_size, n_pad, self.embedding_dim, device=hidden_states.device)
452
+
453
+ # [ batch_size x padded_sequence_length' x embedding_dim ]
454
+ hidden_states_pad = torch.cat([hidden_states, padding], dim=1)
455
+ hidden_states_pad = hidden_states_pad.view(-1, self.transition_dim, self.embedding_dim)
456
+
457
+ return hidden_states_pad, n_pad
458
+
459
+ @add_start_docstrings_to_model_forward(
460
+ TRAJECTORY_TRANSFORMER_INPUTS_DOCSTRING.format("batch_size, sequence_length")
461
+ )
462
+ @replace_return_docstrings(output_type=TrajectoryTransformerOutput, config_class=_CONFIG_FOR_DOC)
463
+ def forward(
464
+ self,
465
+ trajectories: Optional[torch.LongTensor] = None,
466
+ past_key_values: Optional[Tuple[Tuple[torch.Tensor]]] = None,
467
+ targets: Optional[torch.FloatTensor] = None,
468
+ attention_mask: Optional[torch.FloatTensor] = None,
469
+ use_cache: Optional[bool] = None,
470
+ output_attentions: Optional[bool] = None,
471
+ output_hidden_states: Optional[bool] = None,
472
+ return_dict: Optional[bool] = None,
473
+ ) -> Union[Tuple[torch.Tensor], TrajectoryTransformerOutput]:
474
+ r"""
475
+ Returns:
476
+
477
+ Examples:
478
+
479
+ ```python
480
+ >>> from transformers import TrajectoryTransformerModel
481
+ >>> import torch
482
+
483
+ >>> model = TrajectoryTransformerModel.from_pretrained(
484
+ ... "CarlCochet/trajectory-transformer-halfcheetah-medium-v2"
485
+ ... )
486
+ >>> model.to(device)
487
+ >>> model.eval()
488
+
489
+ >>> observations_dim, action_dim, batch_size = 17, 6, 256
490
+ >>> seq_length = observations_dim + action_dim + 1
491
+
492
+ >>> trajectories = torch.LongTensor([np.random.permutation(self.seq_length) for _ in range(batch_size)]).to(
493
+ ... device
494
+ ... )
495
+ >>> targets = torch.LongTensor([np.random.permutation(self.seq_length) for _ in range(batch_size)]).to(device)
496
+
497
+ >>> outputs = model(
498
+ ... trajectories,
499
+ ... targets=targets,
500
+ ... use_cache=True,
501
+ ... output_attentions=True,
502
+ ... output_hidden_states=True,
503
+ ... return_dict=True,
504
+ ... )
505
+ ```
506
+ """
507
+ output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
508
+ output_hidden_states = (
509
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
510
+ )
511
+
512
+ if past_key_values is None:
513
+ past_key_values = tuple([None] * len(self.blocks))
514
+
515
+ batch_size, sequence_length = trajectories.size()
516
+
517
+ if sequence_length > self.block_size:
518
+ raise ValueError("Cannot forward, model block size is exhausted.")
519
+
520
+ offset_trajectories = self.offset_tokens(trajectories)
521
+ # [ batch_size x sequence_length x embedding_dim ]
522
+ # forward the GPT model
523
+ token_embeddings = self.tok_emb(offset_trajectories) # each index maps to a (learnable) vector
524
+ position_embeddings = self.pos_emb[:, :sequence_length, :] # each position maps to a (learnable) vector
525
+
526
+ hidden_states = self.drop(token_embeddings + position_embeddings)
527
+
528
+ if self.gradient_checkpointing and self.training:
529
+ if use_cache:
530
+ logger.warning_once(
531
+ "`use_cache=True` is incompatible with gradient checkpointing. Setting `use_cache=False`..."
532
+ )
533
+ use_cache = False
534
+
535
+ presents = () if use_cache else None
536
+ all_self_attentions = () if output_attentions else None
537
+ all_hidden_states = () if output_hidden_states else None
538
+
539
+ for i, (block, layer_past) in enumerate(zip(self.blocks, past_key_values)):
540
+ if output_hidden_states:
541
+ all_hidden_states = all_hidden_states + (hidden_states,)
542
+
543
+ if self.gradient_checkpointing and self.training:
544
+ outputs = self._gradient_checkpointing_func(
545
+ block.__call__,
546
+ hidden_states,
547
+ layer_past,
548
+ use_cache,
549
+ output_attentions,
550
+ )
551
+ else:
552
+ outputs = block(hidden_states, layer_past, use_cache, output_attentions)
553
+
554
+ hidden_states = outputs[0]
555
+ if use_cache is True:
556
+ presents = presents + (outputs[1],)
557
+
558
+ if output_attentions:
559
+ all_self_attentions = all_self_attentions + (outputs[2 if use_cache else 1],)
560
+
561
+ # [ batch_size x sequence_length x embedding_dim ]
562
+ hidden_state = self.ln_f(hidden_states)
563
+
564
+ if output_hidden_states:
565
+ all_hidden_states = all_hidden_states + (hidden_states,)
566
+
567
+ hidden_states_pad, n_pad = self.pad_to_full_observation(hidden_state)
568
+
569
+ logits = self.head(hidden_states_pad)
570
+ logits = logits.reshape(batch_size, sequence_length + n_pad, self.vocab_size + 1)
571
+ logits = logits[:, :sequence_length]
572
+
573
+ # if we are given some desired targets also calculate the loss
574
+ if targets is not None:
575
+ loss = F.cross_entropy(logits.reshape(-1, logits.size(-1)), targets.view(-1), reduction="none")
576
+ if self.action_weight != 1 or self.reward_weight != 1 or self.value_weight != 1:
577
+ # make weights
578
+ n_states = int(np.ceil(sequence_length / self.transition_dim))
579
+ weights = torch.cat(
580
+ [
581
+ torch.ones(self.observation_dim, device=trajectories.device),
582
+ torch.ones(self.action_dim, device=trajectories.device) * self.action_weight,
583
+ torch.ones(1, device=trajectories.device) * self.reward_weight,
584
+ torch.ones(1, device=trajectories.device) * self.value_weight,
585
+ ]
586
+ )
587
+ weights = weights.repeat(n_states)
588
+ weights = weights[1:].repeat(batch_size, 1)
589
+ loss = loss * weights.view(-1)
590
+ loss = (loss * attention_mask.view(-1)).mean()
591
+ else:
592
+ loss = None
593
+
594
+ if not return_dict:
595
+ return tuple(v for v in [loss, logits, presents, all_hidden_states, all_self_attentions] if v is not None)
596
+
597
+ return TrajectoryTransformerOutput(
598
+ loss=loss,
599
+ logits=logits,
600
+ past_key_values=presents,
601
+ hidden_states=all_hidden_states,
602
+ attentions=all_self_attentions,
603
+ )
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/transfo_xl/__init__.py ADDED
@@ -0,0 +1,93 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # Copyright 2020 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 OptionalDependencyNotAvailable, _LazyModule, is_tf_available, is_torch_available
18
+
19
+
20
+ _import_structure = {
21
+ "configuration_transfo_xl": ["TransfoXLConfig"],
22
+ "tokenization_transfo_xl": ["TransfoXLCorpus", "TransfoXLTokenizer"],
23
+ }
24
+
25
+ try:
26
+ if not is_torch_available():
27
+ raise OptionalDependencyNotAvailable()
28
+ except OptionalDependencyNotAvailable:
29
+ pass
30
+ else:
31
+ _import_structure["modeling_transfo_xl"] = [
32
+ "AdaptiveEmbedding",
33
+ "TransfoXLForSequenceClassification",
34
+ "TransfoXLLMHeadModel",
35
+ "TransfoXLModel",
36
+ "TransfoXLPreTrainedModel",
37
+ "load_tf_weights_in_transfo_xl",
38
+ ]
39
+
40
+ try:
41
+ if not is_tf_available():
42
+ raise OptionalDependencyNotAvailable()
43
+ except OptionalDependencyNotAvailable:
44
+ pass
45
+ else:
46
+ _import_structure["modeling_tf_transfo_xl"] = [
47
+ "TFAdaptiveEmbedding",
48
+ "TFTransfoXLForSequenceClassification",
49
+ "TFTransfoXLLMHeadModel",
50
+ "TFTransfoXLMainLayer",
51
+ "TFTransfoXLModel",
52
+ "TFTransfoXLPreTrainedModel",
53
+ ]
54
+
55
+
56
+ if TYPE_CHECKING:
57
+ from .configuration_transfo_xl import TransfoXLConfig
58
+ from .tokenization_transfo_xl import TransfoXLCorpus, TransfoXLTokenizer
59
+
60
+ try:
61
+ if not is_torch_available():
62
+ raise OptionalDependencyNotAvailable()
63
+ except OptionalDependencyNotAvailable:
64
+ pass
65
+ else:
66
+ from .modeling_transfo_xl import (
67
+ AdaptiveEmbedding,
68
+ TransfoXLForSequenceClassification,
69
+ TransfoXLLMHeadModel,
70
+ TransfoXLModel,
71
+ TransfoXLPreTrainedModel,
72
+ load_tf_weights_in_transfo_xl,
73
+ )
74
+
75
+ try:
76
+ if not is_tf_available():
77
+ raise OptionalDependencyNotAvailable()
78
+ except OptionalDependencyNotAvailable:
79
+ pass
80
+ else:
81
+ from .modeling_tf_transfo_xl import (
82
+ TFAdaptiveEmbedding,
83
+ TFTransfoXLForSequenceClassification,
84
+ TFTransfoXLLMHeadModel,
85
+ TFTransfoXLMainLayer,
86
+ TFTransfoXLModel,
87
+ TFTransfoXLPreTrainedModel,
88
+ )
89
+
90
+ else:
91
+ import sys
92
+
93
+ sys.modules[__name__] = _LazyModule(__name__, globals()["__file__"], _import_structure, module_spec=__spec__)
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/transfo_xl/configuration_transfo_xl.py ADDED
@@ -0,0 +1,186 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2018 Google AI, Google Brain and Carnegie Mellon University Authors and the 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
+ """Transformer XL configuration"""
17
+
18
+ from ....configuration_utils import PretrainedConfig
19
+ from ....utils import logging
20
+
21
+
22
+ logger = logging.get_logger(__name__)
23
+
24
+
25
+ class TransfoXLConfig(PretrainedConfig):
26
+ """
27
+ This is the configuration class to store the configuration of a [`TransfoXLModel`] or a [`TFTransfoXLModel`]. It is
28
+ used to instantiate a Transformer-XL model according to the specified arguments, defining the model architecture.
29
+ Instantiating a configuration with the defaults will yield a similar configuration to that of the TransfoXL
30
+ [transfo-xl/transfo-xl-wt103](https://huggingface.co/transfo-xl/transfo-xl-wt103) 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
+ vocab_size (`int`, *optional*, defaults to 267735):
37
+ Vocabulary size of the BERT model. Defines the number of different tokens that can be represented by the
38
+ `inputs_ids` passed when calling [`TransfoXLModel`] or [`TFTransfoXLModel`].
39
+ cutoffs (`List[int]`, *optional*, defaults to `[20000, 40000, 200000]`):
40
+ Cutoffs for the adaptive softmax.
41
+ d_model (`int`, *optional*, defaults to 1024):
42
+ Dimensionality of the model's hidden states.
43
+ d_embed (`int`, *optional*, defaults to 1024):
44
+ Dimensionality of the embeddings
45
+ n_head (`int`, *optional*, defaults to 16):
46
+ Number of attention heads for each attention layer in the Transformer encoder.
47
+ d_head (`int`, *optional*, defaults to 64):
48
+ Dimensionality of the model's heads.
49
+ d_inner (`int`, *optional*, defaults to 4096):
50
+ Inner dimension in FF
51
+ div_val (`int`, *optional*, defaults to 4):
52
+ Divident value for adapative input and softmax
53
+ pre_lnorm (`boolean`, *optional*, defaults to `False`):
54
+ Whether or not to apply LayerNorm to the input instead of the output in the blocks.
55
+ n_layer (`int`, *optional*, defaults to 18):
56
+ Number of hidden layers in the Transformer encoder.
57
+ mem_len (`int`, *optional*, defaults to 1600):
58
+ Length of the retained previous heads.
59
+ clamp_len (`int`, *optional*, defaults to 1000):
60
+ Use the same pos embeddings after clamp_len.
61
+ same_length (`boolean`, *optional*, defaults to `True`):
62
+ Whether or not to use the same attn length for all tokens
63
+ proj_share_all_but_first (`boolean`, *optional*, defaults to `True`):
64
+ True to share all but first projs, False not to share.
65
+ attn_type (`int`, *optional*, defaults to 0):
66
+ Attention type. 0 for Transformer-XL, 1 for Shaw et al, 2 for Vaswani et al, 3 for Al Rfou et al.
67
+ sample_softmax (`int`, *optional*, defaults to -1):
68
+ Number of samples in the sampled softmax.
69
+ adaptive (`boolean`, *optional*, defaults to `True`):
70
+ Whether or not to use adaptive softmax.
71
+ dropout (`float`, *optional*, defaults to 0.1):
72
+ The dropout probability for all fully connected layers in the embeddings, encoder, and pooler.
73
+ dropatt (`float`, *optional*, defaults to 0.0):
74
+ The dropout ratio for the attention probabilities.
75
+ untie_r (`boolean`, *optional*, defaults to `True`):
76
+ Whether ot not to untie relative position biases.
77
+ init (`str`, *optional*, defaults to `"normal"`):
78
+ Parameter initializer to use.
79
+ init_range (`float`, *optional*, defaults to 0.01):
80
+ Parameters initialized by U(-init_range, init_range).
81
+ proj_init_std (`float`, *optional*, defaults to 0.01):
82
+ Parameters initialized by N(0, init_std)
83
+ init_std (`float`, *optional*, defaults to 0.02):
84
+ Parameters initialized by N(0, init_std)
85
+ layer_norm_epsilon (`float`, *optional*, defaults to 1e-05):
86
+ The epsilon to use in the layer normalization layers
87
+ eos_token_id (`int`, *optional*, defaults to 0):
88
+ End of stream token id.
89
+
90
+ Examples:
91
+
92
+ ```python
93
+ >>> from transformers import TransfoXLConfig, TransfoXLModel
94
+
95
+ >>> # Initializing a Transformer XL configuration
96
+ >>> configuration = TransfoXLConfig()
97
+
98
+ >>> # Initializing a model (with random weights) from the configuration
99
+ >>> model = TransfoXLModel(configuration)
100
+
101
+ >>> # Accessing the model configuration
102
+ >>> configuration = model.config
103
+ ```"""
104
+
105
+ model_type = "transfo-xl"
106
+ keys_to_ignore_at_inference = ["mems"]
107
+ attribute_map = {
108
+ "n_token": "vocab_size",
109
+ "hidden_size": "d_model",
110
+ "num_attention_heads": "n_head",
111
+ "num_hidden_layers": "n_layer",
112
+ }
113
+
114
+ def __init__(
115
+ self,
116
+ vocab_size=267735,
117
+ cutoffs=[20000, 40000, 200000],
118
+ d_model=1024,
119
+ d_embed=1024,
120
+ n_head=16,
121
+ d_head=64,
122
+ d_inner=4096,
123
+ div_val=4,
124
+ pre_lnorm=False,
125
+ n_layer=18,
126
+ mem_len=1600,
127
+ clamp_len=1000,
128
+ same_length=True,
129
+ proj_share_all_but_first=True,
130
+ attn_type=0,
131
+ sample_softmax=-1,
132
+ adaptive=True,
133
+ dropout=0.1,
134
+ dropatt=0.0,
135
+ untie_r=True,
136
+ init="normal",
137
+ init_range=0.01,
138
+ proj_init_std=0.01,
139
+ init_std=0.02,
140
+ layer_norm_epsilon=1e-5,
141
+ eos_token_id=0,
142
+ **kwargs,
143
+ ):
144
+ self.vocab_size = vocab_size
145
+ self.cutoffs = []
146
+ self.cutoffs.extend(cutoffs)
147
+ if proj_share_all_but_first:
148
+ self.tie_projs = [False] + [True] * len(self.cutoffs)
149
+ else:
150
+ self.tie_projs = [False] + [False] * len(self.cutoffs)
151
+ self.d_model = d_model
152
+ self.d_embed = d_embed
153
+ self.d_head = d_head
154
+ self.d_inner = d_inner
155
+ self.div_val = div_val
156
+ self.pre_lnorm = pre_lnorm
157
+ self.n_layer = n_layer
158
+ self.n_head = n_head
159
+ self.mem_len = mem_len
160
+ self.same_length = same_length
161
+ self.attn_type = attn_type
162
+ self.clamp_len = clamp_len
163
+ self.sample_softmax = sample_softmax
164
+ self.adaptive = adaptive
165
+ self.dropout = dropout
166
+ self.dropatt = dropatt
167
+ self.untie_r = untie_r
168
+ self.init = init
169
+ self.init_range = init_range
170
+ self.proj_init_std = proj_init_std
171
+ self.init_std = init_std
172
+ self.layer_norm_epsilon = layer_norm_epsilon
173
+ super().__init__(eos_token_id=eos_token_id, **kwargs)
174
+
175
+ @property
176
+ def max_position_embeddings(self):
177
+ # Message copied from Transformer-XL documentation
178
+ logger.info(f"The model {self.model_type} is one of the few models that has no sequence length limit.")
179
+ return -1
180
+
181
+ @max_position_embeddings.setter
182
+ def max_position_embeddings(self, value):
183
+ # Message copied from Transformer-XL documentation
184
+ raise NotImplementedError(
185
+ f"The model {self.model_type} is one of the few models that has no sequence length limit."
186
+ )
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/transfo_xl/convert_transfo_xl_original_tf_checkpoint_to_pytorch.py ADDED
@@ -0,0 +1,121 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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
+ """Convert Transformer XL checkpoint and datasets."""
16
+
17
+ import argparse
18
+ import os
19
+ import pickle
20
+ import sys
21
+
22
+ import torch
23
+
24
+ from transformers import TransfoXLConfig, TransfoXLLMHeadModel, load_tf_weights_in_transfo_xl
25
+ from transformers.models.deprecated.transfo_xl import tokenization_transfo_xl as data_utils
26
+ from transformers.models.deprecated.transfo_xl.tokenization_transfo_xl import CORPUS_NAME, VOCAB_FILES_NAMES
27
+ from transformers.utils import CONFIG_NAME, WEIGHTS_NAME, logging
28
+
29
+
30
+ logging.set_verbosity_info()
31
+
32
+ # We do this to be able to load python 2 datasets pickles
33
+ # See e.g. https://stackoverflow.com/questions/2121874/python-pickling-after-changing-a-modules-directory/2121918#2121918
34
+ data_utils.Vocab = data_utils.TransfoXLTokenizer
35
+ data_utils.Corpus = data_utils.TransfoXLCorpus
36
+ sys.modules["data_utils"] = data_utils
37
+ sys.modules["vocabulary"] = data_utils
38
+
39
+
40
+ def convert_transfo_xl_checkpoint_to_pytorch(
41
+ tf_checkpoint_path, transfo_xl_config_file, pytorch_dump_folder_path, transfo_xl_dataset_file
42
+ ):
43
+ if transfo_xl_dataset_file:
44
+ # Convert a pre-processed corpus (see original TensorFlow repo)
45
+ with open(transfo_xl_dataset_file, "rb") as fp:
46
+ corpus = pickle.load(fp, encoding="latin1")
47
+ # Save vocabulary and dataset cache as Dictionaries (should be better than pickles for the long-term)
48
+ pytorch_vocab_dump_path = pytorch_dump_folder_path + "/" + VOCAB_FILES_NAMES["pretrained_vocab_file"]
49
+ print(f"Save vocabulary to {pytorch_vocab_dump_path}")
50
+ corpus_vocab_dict = corpus.vocab.__dict__
51
+ torch.save(corpus_vocab_dict, pytorch_vocab_dump_path)
52
+
53
+ corpus_dict_no_vocab = corpus.__dict__
54
+ corpus_dict_no_vocab.pop("vocab", None)
55
+ pytorch_dataset_dump_path = pytorch_dump_folder_path + "/" + CORPUS_NAME
56
+ print(f"Save dataset to {pytorch_dataset_dump_path}")
57
+ torch.save(corpus_dict_no_vocab, pytorch_dataset_dump_path)
58
+
59
+ if tf_checkpoint_path:
60
+ # Convert a pre-trained TensorFlow model
61
+ config_path = os.path.abspath(transfo_xl_config_file)
62
+ tf_path = os.path.abspath(tf_checkpoint_path)
63
+
64
+ print(f"Converting Transformer XL checkpoint from {tf_path} with config at {config_path}.")
65
+ # Initialise PyTorch model
66
+ if transfo_xl_config_file == "":
67
+ config = TransfoXLConfig()
68
+ else:
69
+ config = TransfoXLConfig.from_json_file(transfo_xl_config_file)
70
+ print(f"Building PyTorch model from configuration: {config}")
71
+ model = TransfoXLLMHeadModel(config)
72
+
73
+ model = load_tf_weights_in_transfo_xl(model, config, tf_path)
74
+ # Save pytorch-model
75
+ pytorch_weights_dump_path = os.path.join(pytorch_dump_folder_path, WEIGHTS_NAME)
76
+ pytorch_config_dump_path = os.path.join(pytorch_dump_folder_path, CONFIG_NAME)
77
+ print(f"Save PyTorch model to {os.path.abspath(pytorch_weights_dump_path)}")
78
+ torch.save(model.state_dict(), pytorch_weights_dump_path)
79
+ print(f"Save configuration file to {os.path.abspath(pytorch_config_dump_path)}")
80
+ with open(pytorch_config_dump_path, "w", encoding="utf-8") as f:
81
+ f.write(config.to_json_string())
82
+
83
+
84
+ if __name__ == "__main__":
85
+ parser = argparse.ArgumentParser()
86
+ parser.add_argument(
87
+ "--pytorch_dump_folder_path",
88
+ default=None,
89
+ type=str,
90
+ required=True,
91
+ help="Path to the folder to store the PyTorch model or dataset/vocab.",
92
+ )
93
+ parser.add_argument(
94
+ "--tf_checkpoint_path",
95
+ default="",
96
+ type=str,
97
+ help="An optional path to a TensorFlow checkpoint path to be converted.",
98
+ )
99
+ parser.add_argument(
100
+ "--transfo_xl_config_file",
101
+ default="",
102
+ type=str,
103
+ help=(
104
+ "An optional config json file corresponding to the pre-trained BERT model. \n"
105
+ "This specifies the model architecture."
106
+ ),
107
+ )
108
+ parser.add_argument(
109
+ "--transfo_xl_dataset_file",
110
+ default="",
111
+ type=str,
112
+ help="An optional dataset file to be converted in a vocabulary.\n"
113
+ "Given the files are in the pickle format, please be wary of passing it files you trust.",
114
+ )
115
+ args = parser.parse_args()
116
+ convert_transfo_xl_checkpoint_to_pytorch(
117
+ args.tf_checkpoint_path,
118
+ args.transfo_xl_config_file,
119
+ args.pytorch_dump_folder_path,
120
+ args.transfo_xl_dataset_file,
121
+ )
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/transfo_xl/modeling_tf_transfo_xl.py ADDED
@@ -0,0 +1,1119 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2018 Google AI, Google Brain and Carnegie Mellon University Authors and the 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
+ """
17
+ TF 2.0 Transformer XL model.
18
+ """
19
+
20
+ from __future__ import annotations
21
+
22
+ from dataclasses import dataclass
23
+ from typing import List, Optional, Tuple, Union
24
+
25
+ import numpy as np
26
+ import tensorflow as tf
27
+
28
+ from ....modeling_tf_utils import (
29
+ TFModelInputType,
30
+ TFPreTrainedModel,
31
+ TFSequenceClassificationLoss,
32
+ get_initializer,
33
+ keras,
34
+ keras_serializable,
35
+ unpack_inputs,
36
+ )
37
+ from ....tf_utils import shape_list, stable_softmax
38
+ from ....utils import (
39
+ ModelOutput,
40
+ add_code_sample_docstrings,
41
+ add_start_docstrings,
42
+ add_start_docstrings_to_model_forward,
43
+ logging,
44
+ )
45
+ from .configuration_transfo_xl import TransfoXLConfig
46
+ from .modeling_tf_transfo_xl_utilities import TFAdaptiveSoftmaxMask
47
+
48
+
49
+ logger = logging.get_logger(__name__)
50
+
51
+ _CHECKPOINT_FOR_DOC = "transfo-xl/transfo-xl-wt103"
52
+ _CONFIG_FOR_DOC = "TransfoXLConfig"
53
+
54
+
55
+ class TFPositionalEmbedding(keras.layers.Layer):
56
+ def __init__(self, demb, **kwargs):
57
+ super().__init__(**kwargs)
58
+
59
+ self.inv_freq = 1 / (10000 ** (tf.range(0, demb, 2.0) / demb))
60
+
61
+ def call(self, pos_seq, bsz=None):
62
+ self.inv_freq = tf.cast(self.inv_freq, dtype=pos_seq.dtype)
63
+ sinusoid_inp = tf.einsum("i,j->ij", pos_seq, self.inv_freq)
64
+ pos_emb = tf.concat([tf.sin(sinusoid_inp), tf.cos(sinusoid_inp)], -1)
65
+
66
+ if bsz is not None:
67
+ return tf.tile(pos_emb[:, None, :], [1, bsz, 1])
68
+ else:
69
+ return pos_emb[:, None, :]
70
+
71
+
72
+ class TFPositionwiseFF(keras.layers.Layer):
73
+ def __init__(self, d_model, d_inner, dropout, pre_lnorm=False, layer_norm_epsilon=1e-5, init_std=0.02, **kwargs):
74
+ super().__init__(**kwargs)
75
+
76
+ self.d_model = d_model
77
+ self.d_inner = d_inner
78
+ self.dropout = dropout
79
+
80
+ self.layer_1 = keras.layers.Dense(
81
+ d_inner, kernel_initializer=get_initializer(init_std), activation=tf.nn.relu, name="CoreNet_._0"
82
+ )
83
+ self.drop_1 = keras.layers.Dropout(dropout)
84
+ self.layer_2 = keras.layers.Dense(d_model, kernel_initializer=get_initializer(init_std), name="CoreNet_._3")
85
+ self.drop_2 = keras.layers.Dropout(dropout)
86
+
87
+ self.layer_norm = keras.layers.LayerNormalization(epsilon=layer_norm_epsilon, name="layer_norm")
88
+
89
+ self.pre_lnorm = pre_lnorm
90
+
91
+ def call(self, inp, training=False):
92
+ if self.pre_lnorm:
93
+ # layer normalization + positionwise feed-forward
94
+ core_out = self.layer_norm(inp)
95
+ core_out = self.layer_1(core_out)
96
+ core_out = self.drop_1(core_out, training=training)
97
+ core_out = self.layer_2(core_out)
98
+ core_out = self.drop_2(core_out, training=training)
99
+
100
+ # residual connection
101
+ output = core_out + inp
102
+ else:
103
+ # positionwise feed-forward
104
+ core_out = self.layer_1(inp)
105
+ core_out = self.drop_1(core_out, training=training)
106
+ core_out = self.layer_2(core_out)
107
+ core_out = self.drop_2(core_out, training=training)
108
+
109
+ # residual connection + layer normalization
110
+ output = self.layer_norm(inp + core_out)
111
+
112
+ return output
113
+
114
+
115
+ class TFRelPartialLearnableMultiHeadAttn(keras.layers.Layer):
116
+ def __init__(
117
+ self,
118
+ n_head,
119
+ d_model,
120
+ d_head,
121
+ dropout,
122
+ dropatt=0.0,
123
+ pre_lnorm=False,
124
+ r_r_bias=None,
125
+ r_w_bias=None,
126
+ layer_norm_epsilon=1e-5,
127
+ init_std=0.02,
128
+ output_attentions=False,
129
+ **kwargs,
130
+ ):
131
+ super().__init__(**kwargs)
132
+
133
+ self.n_head = n_head
134
+ self.d_model = d_model
135
+ self.d_head = d_head
136
+ self.dropout = dropout
137
+ self.output_attentions = output_attentions
138
+
139
+ self.qkv_net = keras.layers.Dense(
140
+ 3 * n_head * d_head, kernel_initializer=get_initializer(init_std), use_bias=False, name="qkv_net"
141
+ )
142
+
143
+ self.drop = keras.layers.Dropout(dropout)
144
+ self.dropatt = keras.layers.Dropout(dropatt)
145
+ self.o_net = keras.layers.Dense(
146
+ d_model, kernel_initializer=get_initializer(init_std), use_bias=False, name="o_net"
147
+ )
148
+
149
+ self.layer_norm = keras.layers.LayerNormalization(epsilon=layer_norm_epsilon, name="layer_norm")
150
+
151
+ self.scale = 1 / (d_head**0.5)
152
+
153
+ self.pre_lnorm = pre_lnorm
154
+
155
+ if r_r_bias is not None and r_w_bias is not None: # Biases are shared
156
+ self.r_r_bias = r_r_bias
157
+ self.r_w_bias = r_w_bias
158
+ else:
159
+ self.r_r_bias = None
160
+ self.r_w_bias = None
161
+
162
+ self.r_net = keras.layers.Dense(
163
+ self.n_head * self.d_head, kernel_initializer=get_initializer(init_std), use_bias=False, name="r_net"
164
+ )
165
+
166
+ def build(self, input_shape):
167
+ if self.r_r_bias is None or self.r_w_bias is None: # Biases are not shared
168
+ self.r_r_bias = self.add_weight(
169
+ shape=(self.n_head, self.d_head), initializer="zeros", trainable=True, name="r_r_bias"
170
+ )
171
+ self.r_w_bias = self.add_weight(
172
+ shape=(self.n_head, self.d_head), initializer="zeros", trainable=True, name="r_w_bias"
173
+ )
174
+ super().build(input_shape)
175
+
176
+ def _rel_shift(self, x):
177
+ x_size = shape_list(x)
178
+
179
+ x = tf.pad(x, [[0, 0], [1, 0], [0, 0], [0, 0]])
180
+ x = tf.reshape(x, [x_size[1] + 1, x_size[0], x_size[2], x_size[3]])
181
+ x = tf.slice(x, [1, 0, 0, 0], [-1, -1, -1, -1])
182
+ x = tf.reshape(x, x_size)
183
+
184
+ return x
185
+
186
+ def call(self, w, r, attn_mask, mems, head_mask, output_attentions, training=False):
187
+ qlen, rlen, bsz = shape_list(w)[0], shape_list(r)[0], shape_list(w)[1]
188
+
189
+ if mems is not None:
190
+ mems = tf.cast(mems, dtype=w.dtype)
191
+ cat = tf.concat([mems, w], 0)
192
+ if self.pre_lnorm:
193
+ w_heads = self.qkv_net(self.layer_norm(cat))
194
+ else:
195
+ w_heads = self.qkv_net(cat)
196
+ r_head_k = self.r_net(r)
197
+
198
+ w_head_q, w_head_k, w_head_v = tf.split(w_heads, 3, axis=-1)
199
+ w_head_q = w_head_q[-qlen:]
200
+ else:
201
+ if self.pre_lnorm:
202
+ w_heads = self.qkv_net(self.layer_norm(w))
203
+ else:
204
+ w_heads = self.qkv_net(w)
205
+ r_head_k = self.r_net(r)
206
+
207
+ w_head_q, w_head_k, w_head_v = tf.split(w_heads, 3, axis=-1)
208
+
209
+ klen = shape_list(w_head_k)[0]
210
+
211
+ w_head_q = tf.reshape(w_head_q, (qlen, bsz, self.n_head, self.d_head)) # qlen x bsz x n_head x d_head
212
+ w_head_k = tf.reshape(w_head_k, (klen, bsz, self.n_head, self.d_head)) # qlen x bsz x n_head x d_head
213
+ w_head_v = tf.reshape(w_head_v, (klen, bsz, self.n_head, self.d_head)) # qlen x bsz x n_head x d_head
214
+
215
+ r_head_k = tf.reshape(r_head_k, (rlen, self.n_head, self.d_head)) # qlen x n_head x d_head
216
+
217
+ # compute attention score
218
+ rw_head_q = w_head_q + self.r_w_bias # qlen x bsz x n_head x d_head
219
+ AC = tf.einsum("ibnd,jbnd->ijbn", rw_head_q, w_head_k) # qlen x klen x bsz x n_head
220
+
221
+ rr_head_q = w_head_q + self.r_r_bias
222
+ BD = tf.einsum("ibnd,jnd->ijbn", rr_head_q, r_head_k) # qlen x klen x bsz x n_head
223
+ BD = self._rel_shift(BD)
224
+
225
+ # [qlen x klen x bsz x n_head]
226
+ attn_score = AC + BD
227
+ attn_score = attn_score * self.scale
228
+
229
+ # compute attention probability
230
+ if attn_mask is not None:
231
+ attn_mask_t = attn_mask[:, :, None, None]
232
+ attn_mask_t = tf.cast(attn_mask_t, dtype=attn_score.dtype)
233
+ attn_score = attn_score * (1.0 - attn_mask_t) - 1e30 * attn_mask_t
234
+
235
+ # [qlen x klen x bsz x n_head]
236
+ attn_prob = stable_softmax(attn_score, axis=1)
237
+ attn_prob = self.dropatt(attn_prob, training=training)
238
+
239
+ # Mask heads if we want to
240
+ if head_mask is not None:
241
+ attn_prob = attn_prob * head_mask
242
+
243
+ # compute attention vector
244
+ attn_vec = tf.einsum("ijbn,jbnd->ibnd", attn_prob, w_head_v)
245
+
246
+ # [qlen x bsz x n_head x d_head]
247
+ attn_vec_sizes = shape_list(attn_vec)
248
+ attn_vec = tf.reshape(attn_vec, (attn_vec_sizes[0], attn_vec_sizes[1], self.n_head * self.d_head))
249
+
250
+ # linear projection
251
+ attn_out = self.o_net(attn_vec)
252
+ attn_out = self.drop(attn_out, training=training)
253
+
254
+ if self.pre_lnorm:
255
+ # residual connection
256
+ outputs = [w + attn_out]
257
+ else:
258
+ # residual connection + layer normalization
259
+ outputs = [self.layer_norm(w + attn_out)]
260
+
261
+ if output_attentions:
262
+ outputs.append(attn_prob)
263
+
264
+ return outputs
265
+
266
+
267
+ class TFRelPartialLearnableDecoderLayer(keras.layers.Layer):
268
+ def __init__(
269
+ self,
270
+ n_head,
271
+ d_model,
272
+ d_head,
273
+ d_inner,
274
+ dropout,
275
+ dropatt=0.0,
276
+ pre_lnorm=False,
277
+ r_w_bias=None,
278
+ r_r_bias=None,
279
+ layer_norm_epsilon=1e-5,
280
+ init_std=0.02,
281
+ output_attentions=False,
282
+ **kwargs,
283
+ ):
284
+ super().__init__(**kwargs)
285
+
286
+ self.dec_attn = TFRelPartialLearnableMultiHeadAttn(
287
+ n_head,
288
+ d_model,
289
+ d_head,
290
+ dropout,
291
+ dropatt=dropatt,
292
+ pre_lnorm=pre_lnorm,
293
+ r_w_bias=r_w_bias,
294
+ r_r_bias=r_r_bias,
295
+ init_std=init_std,
296
+ layer_norm_epsilon=layer_norm_epsilon,
297
+ output_attentions=output_attentions,
298
+ name="dec_attn",
299
+ )
300
+ self.pos_ff = TFPositionwiseFF(
301
+ d_model,
302
+ d_inner,
303
+ dropout,
304
+ pre_lnorm=pre_lnorm,
305
+ init_std=init_std,
306
+ layer_norm_epsilon=layer_norm_epsilon,
307
+ name="pos_ff",
308
+ )
309
+
310
+ def call(self, dec_inp, r, dec_attn_mask, mems, head_mask, output_attentions, training=False):
311
+ attn_outputs = self.dec_attn(dec_inp, r, dec_attn_mask, mems, head_mask, output_attentions, training=training)
312
+ ff_output = self.pos_ff(attn_outputs[0], training=training)
313
+
314
+ outputs = [ff_output] + attn_outputs[1:]
315
+
316
+ return outputs
317
+
318
+
319
+ class TFTransfoEmbeddings(keras.layers.Layer):
320
+ def __init__(self, vocab_size, emb_size, init_std, **kwargs):
321
+ super().__init__(**kwargs)
322
+
323
+ self.vocab_size = vocab_size
324
+ self.emb_size = emb_size
325
+ self.init_std = init_std
326
+
327
+ def build(self, input_shape):
328
+ self.weight = self.add_weight(
329
+ shape=(self.vocab_size, self.emb_size),
330
+ initializer=get_initializer(self.init_std),
331
+ name="embeddings",
332
+ )
333
+
334
+ super().build(input_shape)
335
+
336
+ def call(self, inputs):
337
+ return tf.gather(self.weight, inputs)
338
+
339
+
340
+ class TFAdaptiveEmbedding(keras.layers.Layer):
341
+ def __init__(self, n_token, d_embed, d_proj, cutoffs, div_val=1, init_std=0.02, sample_softmax=False, **kwargs):
342
+ super().__init__(**kwargs)
343
+
344
+ self.n_token = n_token
345
+ self.d_embed = d_embed
346
+ self.init_std = init_std
347
+
348
+ self.cutoffs = cutoffs + [n_token]
349
+ self.div_val = div_val
350
+ self.d_proj = d_proj
351
+
352
+ self.emb_scale = d_proj**0.5
353
+
354
+ self.cutoff_ends = [0] + self.cutoffs
355
+
356
+ self.emb_layers = []
357
+ self.emb_projs = []
358
+
359
+ if div_val == 1:
360
+ raise NotImplementedError # Removed these to avoid maintaining dead code - They are not used in our pretrained checkpoint
361
+ else:
362
+ for i in range(len(self.cutoffs)):
363
+ l_idx, r_idx = self.cutoff_ends[i], self.cutoff_ends[i + 1]
364
+ d_emb_i = d_embed // (div_val**i)
365
+ self.emb_layers.append(
366
+ TFTransfoEmbeddings(
367
+ r_idx - l_idx,
368
+ d_emb_i,
369
+ init_std,
370
+ name=f"emb_layers_._{i}",
371
+ )
372
+ )
373
+
374
+ def build(self, input_shape):
375
+ for i in range(len(self.cutoffs)):
376
+ d_emb_i = self.d_embed // (self.div_val**i)
377
+ self.emb_projs.append(
378
+ self.add_weight(
379
+ shape=(d_emb_i, self.d_proj),
380
+ initializer=get_initializer(self.init_std),
381
+ trainable=True,
382
+ name=f"emb_projs_._{i}",
383
+ )
384
+ )
385
+
386
+ super().build(input_shape)
387
+
388
+ def call(self, inp):
389
+ if self.div_val == 1:
390
+ raise NotImplementedError # Removed these to avoid maintaining dead code - They are not used in our pretrained checkpoint
391
+ else:
392
+ inp_flat = tf.reshape(inp, (-1,))
393
+ emb_flat = tf.zeros([shape_list(inp_flat)[0], self.d_proj])
394
+ for i in range(len(self.cutoffs)):
395
+ l_idx, r_idx = self.cutoff_ends[i], self.cutoff_ends[i + 1]
396
+
397
+ mask_i = (inp_flat >= l_idx) & (inp_flat < r_idx)
398
+
399
+ inp_i = tf.boolean_mask(inp_flat, mask_i) - l_idx
400
+ emb_i = self.emb_layers[i](inp_i)
401
+ emb_i = tf.einsum("id,de->ie", emb_i, self.emb_projs[i])
402
+
403
+ mask_idx = tf.where(mask_i)
404
+ scatter = tf.scatter_nd(mask_idx, emb_i, shape_list(emb_flat))
405
+ emb_flat = tf.cast(emb_flat, dtype=scatter.dtype)
406
+ emb_flat += scatter
407
+
408
+ embed_shape = shape_list(inp) + [self.d_proj]
409
+ embed = tf.reshape(emb_flat, embed_shape)
410
+
411
+ embed *= self.emb_scale
412
+
413
+ return embed
414
+
415
+
416
+ @keras_serializable
417
+ class TFTransfoXLMainLayer(keras.layers.Layer):
418
+ config_class = TransfoXLConfig
419
+
420
+ def __init__(self, config, **kwargs):
421
+ super().__init__(**kwargs)
422
+
423
+ self.config = config
424
+ self.output_hidden_states = config.output_hidden_states
425
+ self.output_attentions = config.output_attentions
426
+ self.return_dict = config.use_return_dict
427
+
428
+ self.n_token = config.vocab_size
429
+
430
+ self.d_embed = config.d_embed
431
+ self.d_model = config.d_model
432
+ self.n_head = config.n_head
433
+ self.d_head = config.d_head
434
+ self.untie_r = config.untie_r
435
+
436
+ self.word_emb = TFAdaptiveEmbedding(
437
+ config.vocab_size,
438
+ config.d_embed,
439
+ config.d_model,
440
+ config.cutoffs,
441
+ div_val=config.div_val,
442
+ init_std=config.init_std,
443
+ name="word_emb",
444
+ )
445
+
446
+ self.drop = keras.layers.Dropout(config.dropout)
447
+
448
+ self.n_layer = config.n_layer
449
+ self.mem_len = config.mem_len
450
+ self.attn_type = config.attn_type
451
+
452
+ self.layers = []
453
+ if config.attn_type == 0: # the default attention
454
+ for i in range(config.n_layer):
455
+ self.layers.append(
456
+ TFRelPartialLearnableDecoderLayer(
457
+ config.n_head,
458
+ config.d_model,
459
+ config.d_head,
460
+ config.d_inner,
461
+ config.dropout,
462
+ dropatt=config.dropatt,
463
+ pre_lnorm=config.pre_lnorm,
464
+ r_w_bias=None if self.untie_r else self.r_w_bias,
465
+ r_r_bias=None if self.untie_r else self.r_r_bias,
466
+ layer_norm_epsilon=config.layer_norm_epsilon,
467
+ init_std=config.init_std,
468
+ output_attentions=self.output_attentions,
469
+ name=f"layers_._{i}",
470
+ )
471
+ )
472
+ else: # learnable embeddings and absolute embeddings
473
+ raise NotImplementedError # Removed these to avoid maintaining dead code - They are not used in our pretrained checkpoint
474
+
475
+ self.same_length = config.same_length
476
+ self.clamp_len = config.clamp_len
477
+
478
+ if self.attn_type == 0: # default attention
479
+ self.pos_emb = TFPositionalEmbedding(self.d_model, name="pos_emb")
480
+ else: # learnable embeddings and absolute embeddings
481
+ raise NotImplementedError # Removed these to avoid maintaining dead code - They are not used in our pretrained checkpoint
482
+
483
+ def build(self, input_shape):
484
+ if not self.untie_r:
485
+ self.r_w_bias = self.add_weight(
486
+ shape=(self.n_head, self.d_head), initializer="zeros", trainable=True, name="r_w_bias"
487
+ )
488
+ self.r_r_bias = self.add_weight(
489
+ shape=(self.n_head, self.d_head), initializer="zeros", trainable=True, name="r_r_bias"
490
+ )
491
+ super().build(input_shape)
492
+
493
+ def get_input_embeddings(self):
494
+ return self.word_emb
495
+
496
+ def set_input_embeddings(self, value):
497
+ raise NotImplementedError
498
+
499
+ def backward_compatible(self):
500
+ self.sample_softmax = -1
501
+
502
+ def reset_memory_length(self, mem_len):
503
+ self.mem_len = mem_len
504
+
505
+ def _prune_heads(self, heads):
506
+ raise NotImplementedError
507
+
508
+ def init_mems(self, bsz):
509
+ if self.mem_len > 0:
510
+ mems = []
511
+ for i in range(self.n_layer):
512
+ empty = tf.zeros([self.mem_len, bsz, self.d_model])
513
+ mems.append(empty)
514
+
515
+ return mems
516
+ else:
517
+ return None
518
+
519
+ def _update_mems(self, hids, mems, mlen, qlen):
520
+ # does not deal with None
521
+ if mems is None:
522
+ return None
523
+
524
+ # mems is not None
525
+ assert len(hids) == len(mems), "len(hids) != len(mems)"
526
+
527
+ # There are `mlen + qlen` steps that can be cached into mems
528
+ new_mems = []
529
+ end_idx = mlen + tf.math.maximum(0, qlen)
530
+ beg_idx = tf.math.maximum(0, end_idx - tf.convert_to_tensor(self.mem_len))
531
+ for i in range(len(hids)):
532
+ mems[i] = tf.cast(mems[i], dtype=hids[i].dtype)
533
+ cat = tf.concat([mems[i], hids[i]], axis=0)
534
+ tf.stop_gradient(cat)
535
+ new_mems.append(cat[beg_idx:end_idx])
536
+
537
+ return new_mems
538
+
539
+ @unpack_inputs
540
+ def call(
541
+ self,
542
+ input_ids: TFModelInputType | None = None,
543
+ mems: List[tf.Tensor] | None = None,
544
+ head_mask: np.ndarray | tf.Tensor | None = None,
545
+ inputs_embeds: np.ndarray | tf.Tensor | None = None,
546
+ output_attentions: Optional[bool] = None,
547
+ output_hidden_states: Optional[bool] = None,
548
+ return_dict: Optional[bool] = None,
549
+ labels: np.ndarray | tf.Tensor | None = None,
550
+ training: bool = False,
551
+ ):
552
+ # the original code for Transformer-XL used shapes [len, bsz] but we want a unified interface in the library
553
+ # so we transpose here from shape [bsz, len] to shape [len, bsz]
554
+ if input_ids is not None and inputs_embeds is not None:
555
+ raise ValueError("You cannot specify both input_ids and inputs_embeds at the same time")
556
+ elif input_ids is not None:
557
+ input_ids = tf.transpose(input_ids, perm=(1, 0))
558
+ qlen, bsz = shape_list(input_ids)
559
+ elif inputs_embeds is not None:
560
+ inputs_embeds = tf.transpose(inputs_embeds, perm=(1, 0, 2))
561
+ qlen, bsz = shape_list(inputs_embeds)[:2]
562
+ else:
563
+ raise ValueError("You have to specify either input_ids or inputs_embeds")
564
+
565
+ if mems is None:
566
+ mems = self.init_mems(bsz)
567
+
568
+ # Prepare head mask if needed
569
+ # 1.0 in head_mask indicate we keep the head
570
+ # attention_probs has shape bsz x n_heads x N x N
571
+ # input head_mask has shape [num_heads] or [num_hidden_layers x num_heads] (a head_mask for each layer)
572
+ # and head_mask is converted to shape [num_hidden_layers x qlen x klen x bsz x n_head]
573
+ if head_mask is not None:
574
+ raise NotImplementedError
575
+ else:
576
+ head_mask = [None] * self.n_layer
577
+
578
+ if inputs_embeds is not None:
579
+ word_emb = inputs_embeds
580
+ else:
581
+ word_emb = self.word_emb(input_ids)
582
+
583
+ mlen = shape_list(mems[0])[0] if mems is not None else 0
584
+ klen = mlen + qlen
585
+
586
+ # Compute decoder attention mask
587
+ all_ones = tf.ones([qlen, klen], dtype=tf.int32)
588
+ upper_mask = 1 - tf.linalg.band_part(tf.ones([qlen, klen], dtype=tf.int32), -1, mlen)
589
+ if self.same_length:
590
+ mask_len = klen - self.mem_len
591
+ mask_shift_len = qlen - tf.nn.relu(mask_len) # Lazy clamping of negatives to zero
592
+
593
+ # Use an indicator variable instead of a conditional to keep the compiler happy
594
+ lower_mask = tf.linalg.band_part(all_ones, -1, 0) - (
595
+ tf.linalg.band_part(all_ones, mask_shift_len - 1, 0) * tf.cast(mask_shift_len != 0, tf.int32)
596
+ )
597
+ dec_attn_mask = upper_mask + lower_mask
598
+ else:
599
+ dec_attn_mask = upper_mask
600
+
601
+ hids = []
602
+ attentions = [] if output_attentions else None
603
+ if self.attn_type == 0: # default
604
+ pos_seq = tf.range(klen - 1, -1, -1.0)
605
+ if self.clamp_len > 0:
606
+ pos_seq = tf.minimum(pos_seq, self.clamp_len)
607
+ pos_emb = self.pos_emb(pos_seq)
608
+
609
+ core_out = self.drop(word_emb, training=training)
610
+ pos_emb = self.drop(pos_emb, training=training)
611
+
612
+ for i, layer in enumerate(self.layers):
613
+ hids.append(core_out)
614
+ mems_i = None if mems is None else mems[i]
615
+ layer_outputs = layer(
616
+ core_out,
617
+ pos_emb,
618
+ dec_attn_mask,
619
+ mems_i,
620
+ head_mask[i],
621
+ output_attentions,
622
+ training=training,
623
+ )
624
+ core_out = layer_outputs[0]
625
+ if output_attentions:
626
+ attentions.append(layer_outputs[1])
627
+ else: # learnable embeddings and absolute embeddings
628
+ raise NotImplementedError # Removed these to avoid maintaining dead code - They are not used in our pretrained checkpoint
629
+
630
+ core_out = self.drop(core_out, training=training)
631
+
632
+ new_mems = self._update_mems(hids, mems, mlen, qlen)
633
+
634
+ # We transpose back here to shape [bsz, len, hidden_dim]
635
+ core_out = tf.transpose(core_out, perm=(1, 0, 2))
636
+
637
+ if output_hidden_states:
638
+ # Transpose to library standard shape [bsz, len, hidden_dim] and add last layer
639
+ hids = tuple(tf.transpose(t, perm=(1, 0, 2)) for t in hids)
640
+ hids = hids + (core_out,)
641
+ else:
642
+ hids = None
643
+ if output_attentions:
644
+ # Transpose to library standard shape [bsz, n_heads, query_seq_len, key_seq_len]
645
+ attentions = tuple(tf.transpose(t, perm=(2, 3, 0, 1)) for t in attentions)
646
+
647
+ if not return_dict:
648
+ return tuple(v for v in [core_out, new_mems, hids, attentions] if v is not None)
649
+
650
+ return TFTransfoXLModelOutput(
651
+ last_hidden_state=core_out,
652
+ mems=new_mems,
653
+ hidden_states=hids,
654
+ attentions=attentions,
655
+ )
656
+
657
+
658
+ class TFTransfoXLPreTrainedModel(TFPreTrainedModel):
659
+ """
660
+ An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained
661
+ models.
662
+ """
663
+
664
+ config_class = TransfoXLConfig
665
+ base_model_prefix = "transformer"
666
+
667
+
668
+ @dataclass
669
+ class TFTransfoXLModelOutput(ModelOutput):
670
+ """
671
+ Base class for model's outputs that may also contain a past key/values (to speed up sequential decoding).
672
+
673
+ Args:
674
+ last_hidden_state (`tf.Tensor` of shape `(batch_size, sequence_length, hidden_size)`):
675
+ Sequence of hidden-states at the output of the last layer of the model.
676
+ mems (`List[tf.Tensor]` of length `config.n_layers`):
677
+ Contains pre-computed hidden-states (key and values in the attention blocks). Can be used (see `mems`
678
+ input) to speed up sequential decoding. The token ids which have their past given to this model should not
679
+ be passed as input ids as they have already been computed.
680
+ hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
681
+ Tuple of `tf.Tensor` (one for the output of the embeddings + one for the output of each layer) of shape
682
+ `(batch_size, sequence_length, hidden_size)`.
683
+
684
+ Hidden-states of the model at the output of each layer plus the initial embedding outputs.
685
+ attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
686
+ Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
687
+ sequence_length)`.
688
+
689
+ Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
690
+ heads.
691
+ """
692
+
693
+ last_hidden_state: tf.Tensor = None
694
+ mems: List[tf.Tensor] = None
695
+ hidden_states: Tuple[tf.Tensor] | None = None
696
+ attentions: Tuple[tf.Tensor] | None = None
697
+
698
+
699
+ @dataclass
700
+ class TFTransfoXLLMHeadModelOutput(ModelOutput):
701
+ """
702
+ Base class for model's outputs that may also contain a past key/values (to speed up sequential decoding).
703
+
704
+ Args:
705
+ losses (`tf.Tensor` of shape *(batch_size, sequence_length-1)*, *optional*, returned when `labels` is provided):
706
+ Language modeling losses (not reduced).
707
+ prediction_scores (`tf.Tensor` of shape `(batch_size, sequence_length, config.vocab_size)`):
708
+ Prediction scores of the language modeling head (scores for each vocabulary token after SoftMax).
709
+ mems (`List[tf.Tensor]` of length `config.n_layers`):
710
+ Contains pre-computed hidden-states (key and values in the attention blocks). Can be used (see `mems`
711
+ input) to speed up sequential decoding. The token ids which have their past given to this model should not
712
+ be passed as input ids as they have already been computed.
713
+ hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
714
+ Tuple of `tf.Tensor` (one for the output of the embeddings + one for the output of each layer) of shape
715
+ `(batch_size, sequence_length, hidden_size)`.
716
+
717
+ Hidden-states of the model at the output of each layer plus the initial embedding outputs.
718
+ attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
719
+ Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
720
+ sequence_length)`.
721
+
722
+ Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
723
+ heads.
724
+ """
725
+
726
+ prediction_scores: tf.Tensor = None
727
+ mems: List[tf.Tensor] = None
728
+ hidden_states: Tuple[tf.Tensor] | None = None
729
+ attentions: Tuple[tf.Tensor] | None = None
730
+
731
+
732
+ @dataclass
733
+ class TFTransfoXLSequenceClassifierOutputWithPast(ModelOutput):
734
+ """
735
+ Base class for outputs of sentence classification models.
736
+
737
+ Args:
738
+ loss (`tf.Tensor` of shape `(1,)`, *optional*, returned when `labels` is provided):
739
+ Classification (or regression if config.num_labels==1) loss.
740
+ logits (`tf.Tensor` of shape `(batch_size, config.num_labels)`):
741
+ Classification (or regression if config.num_labels==1) scores (before SoftMax).
742
+ mems (`List[tf.Tensor]` of length `config.n_layers`):
743
+ Contains pre-computed hidden-states (key and values in the attention blocks). Can be used (see `mems`
744
+ input) to speed up sequential decoding. The token ids which have their past given to this model should not
745
+ be passed as input ids as they have already been computed.
746
+ hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
747
+ Tuple of `tf.Tensor` (one for the output of the embeddings + one for the output of each layer) of shape
748
+ `(batch_size, sequence_length, hidden_size)`.
749
+
750
+ Hidden-states of the model at the output of each layer plus the initial embedding outputs.
751
+ attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
752
+ Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
753
+ sequence_length)`.
754
+
755
+ Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
756
+ heads.
757
+ """
758
+
759
+ loss: tf.Tensor | None = None
760
+ logits: tf.Tensor = None
761
+ mems: List[tf.Tensor] = None
762
+ hidden_states: Tuple[tf.Tensor] | None = None
763
+ attentions: Tuple[tf.Tensor] | None = None
764
+
765
+
766
+ TRANSFO_XL_START_DOCSTRING = r"""
767
+
768
+ This model inherits from [`TFPreTrainedModel`]. Check the superclass documentation for the generic methods the
769
+ library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads
770
+ etc.)
771
+
772
+ This model is also a [keras.Model](https://www.tensorflow.org/api_docs/python/tf/keras/Model) subclass. Use it
773
+ as a regular TF 2.0 Keras Model and refer to the TF 2.0 documentation for all matter related to general usage and
774
+ behavior.
775
+
776
+ <Tip>
777
+
778
+ TensorFlow models and layers in `transformers` accept two formats as input:
779
+
780
+ - having all inputs as keyword arguments (like PyTorch models), or
781
+ - having all inputs as a list, tuple or dict in the first positional argument.
782
+
783
+ The reason the second format is supported is that Keras methods prefer this format when passing inputs to models
784
+ and layers. Because of this support, when using methods like `model.fit()` things should "just work" for you - just
785
+ pass your inputs and labels in any format that `model.fit()` supports! If, however, you want to use the second
786
+ format outside of Keras methods like `fit()` and `predict()`, such as when creating your own layers or models with
787
+ the Keras `Functional` API, there are three possibilities you can use to gather all the input Tensors in the first
788
+ positional argument:
789
+
790
+ - a single Tensor with `input_ids` only and nothing else: `model(input_ids)`
791
+ - a list of varying length with one or several input Tensors IN THE ORDER given in the docstring:
792
+ `model([input_ids, attention_mask])` or `model([input_ids, attention_mask, token_type_ids])`
793
+ - a dictionary with one or several input Tensors associated to the input names given in the docstring:
794
+ `model({"input_ids": input_ids, "token_type_ids": token_type_ids})`
795
+
796
+ Note that when creating models and layers with
797
+ [subclassing](https://keras.io/guides/making_new_layers_and_models_via_subclassing/) then you don't need to worry
798
+ about any of this, as you can just pass inputs like you would to any other Python function!
799
+
800
+ </Tip>
801
+
802
+ Parameters:
803
+ config ([`TransfoXLConfig`]): Model configuration class with all the parameters of the model.
804
+ Initializing with a config file does not load the weights associated with the model, only the
805
+ configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights.
806
+ """
807
+
808
+ TRANSFO_XL_INPUTS_DOCSTRING = r"""
809
+ Args:
810
+ input_ids (`tf.Tensor` or `Numpy array` of shape `(batch_size, sequence_length)`):
811
+ Indices of input sequence tokens in the vocabulary.
812
+
813
+ Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.__call__`] and
814
+ [`PreTrainedTokenizer.encode`] for details.
815
+
816
+ [What are input IDs?](../glossary#input-ids)
817
+ mems (`List[tf.Tensor]` of length `config.n_layers`):
818
+ Contains pre-computed hidden-states (key and values in the attention blocks) as computed by the model (see
819
+ `mems` output below). Can be used to speed up sequential decoding. The token ids which have their mems
820
+ given to this model should not be passed as `input_ids` as they have already been computed.
821
+ head_mask (`tf.Tensor` or `Numpy array` of shape `(num_heads,)` or `(num_layers, num_heads)`, *optional*):
822
+ Mask to nullify selected heads of the self-attention modules. Mask values selected in `[0, 1]`:
823
+
824
+ - 1 indicates the head is **not masked**,
825
+ - 0 indicates the head is **masked**.
826
+ inputs_embeds (`tf.Tensor` or `Numpy array` of shape `(batch_size, sequence_length, hidden_size)`, *optional*):
827
+ Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. This
828
+ is useful if you want more control over how to convert `input_ids` indices into associated vectors than the
829
+ model's internal embedding lookup matrix.
830
+ output_attentions (`bool`, *optional*):
831
+ Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned
832
+ tensors for more detail. This argument can be used only in eager mode, in graph mode the value in the
833
+ config will be used instead.
834
+ output_hidden_states (`bool`, *optional*):
835
+ Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
836
+ more detail. This argument can be used only in eager mode, in graph mode the value in the config will be
837
+ used instead.
838
+ return_dict (`bool`, *optional*):
839
+ Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. This argument can be used in
840
+ eager mode, in graph mode the value will always be set to True.
841
+ training (`bool`, *optional*, defaults to `False`):
842
+ Whether or not to use the model in training mode (some modules like dropout modules have different
843
+ behaviors between training and evaluation).
844
+ """
845
+
846
+
847
+ @add_start_docstrings(
848
+ "The bare Bert Model transformer outputting raw hidden-states without any specific head on top.",
849
+ TRANSFO_XL_START_DOCSTRING,
850
+ )
851
+ class TFTransfoXLModel(TFTransfoXLPreTrainedModel):
852
+ def __init__(self, config, *inputs, **kwargs):
853
+ super().__init__(config, *inputs, **kwargs)
854
+ self.transformer = TFTransfoXLMainLayer(config, name="transformer")
855
+
856
+ @unpack_inputs
857
+ @add_start_docstrings_to_model_forward(TRANSFO_XL_INPUTS_DOCSTRING)
858
+ @add_code_sample_docstrings(
859
+ checkpoint=_CHECKPOINT_FOR_DOC,
860
+ output_type=TFTransfoXLModelOutput,
861
+ config_class=_CONFIG_FOR_DOC,
862
+ )
863
+ def call(
864
+ self,
865
+ input_ids: TFModelInputType | None = None,
866
+ mems: List[tf.Tensor] | None = None,
867
+ head_mask: np.ndarray | tf.Tensor | None = None,
868
+ inputs_embeds: np.ndarray | tf.Tensor | None = None,
869
+ output_attentions: bool | None = None,
870
+ output_hidden_states: bool | None = None,
871
+ return_dict: bool | None = None,
872
+ training: bool = False,
873
+ ) -> TFTransfoXLModelOutput | Tuple[tf.Tensor]:
874
+ outputs = self.transformer(
875
+ input_ids=input_ids,
876
+ mems=mems,
877
+ head_mask=head_mask,
878
+ inputs_embeds=inputs_embeds,
879
+ output_attentions=output_attentions,
880
+ output_hidden_states=output_hidden_states,
881
+ return_dict=return_dict,
882
+ training=training,
883
+ )
884
+
885
+ return outputs
886
+
887
+
888
+ @add_start_docstrings(
889
+ """
890
+ The Transformer-XL Model with a language modeling head on top (adaptive softmax with weights tied to the adaptive
891
+ input embeddings)
892
+ """,
893
+ TRANSFO_XL_START_DOCSTRING,
894
+ )
895
+ class TFTransfoXLLMHeadModel(TFTransfoXLPreTrainedModel):
896
+ def __init__(self, config):
897
+ super().__init__(config)
898
+ self.transformer = TFTransfoXLMainLayer(config, name="transformer")
899
+ self.sample_softmax = config.sample_softmax
900
+ assert self.sample_softmax <= 0, (
901
+ "Sampling from the softmax is not implemented yet. Please look at issue: #3310:"
902
+ " https://github.com/huggingface/transformers/issues/3310"
903
+ )
904
+
905
+ self.crit = TFAdaptiveSoftmaxMask(
906
+ config.vocab_size, config.d_embed, config.d_model, config.cutoffs, div_val=config.div_val, name="crit"
907
+ )
908
+
909
+ def _resize_token_embeddings(self, new_num_tokens):
910
+ raise NotImplementedError()
911
+
912
+ def get_output_embeddings(self):
913
+ """Double-check if you are using adaptive softmax."""
914
+ if len(self.crit.out_layers) > 0:
915
+ return self.crit.out_layers[-1]
916
+ return None
917
+
918
+ def reset_memory_length(self, mem_len):
919
+ self.transformer.reset_memory_length(mem_len)
920
+
921
+ def init_mems(self, bsz):
922
+ return self.transformer.init_mems(bsz)
923
+
924
+ @unpack_inputs
925
+ @add_start_docstrings_to_model_forward(TRANSFO_XL_INPUTS_DOCSTRING)
926
+ @add_code_sample_docstrings(
927
+ checkpoint=_CHECKPOINT_FOR_DOC,
928
+ output_type=TFTransfoXLLMHeadModelOutput,
929
+ config_class=_CONFIG_FOR_DOC,
930
+ )
931
+ def call(
932
+ self,
933
+ input_ids: TFModelInputType | None = None,
934
+ mems: List[tf.Tensor] | None = None,
935
+ head_mask: np.ndarray | tf.Tensor | None = None,
936
+ inputs_embeds: np.ndarray | tf.Tensor | None = None,
937
+ output_attentions: bool | None = None,
938
+ output_hidden_states: bool | None = None,
939
+ return_dict: bool | None = None,
940
+ labels: np.ndarray | tf.Tensor | None = None,
941
+ training: bool = False,
942
+ ) -> TFTransfoXLLMHeadModelOutput | Tuple[tf.Tensor]:
943
+ if input_ids is not None:
944
+ bsz, tgt_len = shape_list(input_ids)[:2]
945
+ else:
946
+ bsz, tgt_len = shape_list(inputs_embeds)[:2]
947
+
948
+ transformer_outputs = self.transformer(
949
+ input_ids,
950
+ mems,
951
+ head_mask,
952
+ inputs_embeds,
953
+ output_attentions,
954
+ output_hidden_states,
955
+ return_dict,
956
+ training=training,
957
+ )
958
+
959
+ last_hidden = transformer_outputs[0]
960
+ pred_hid = last_hidden[:, -tgt_len:]
961
+
962
+ softmax_output = self.crit(pred_hid, labels, training=training)
963
+ prediction_scores = softmax_output if labels is None else ()
964
+
965
+ if not return_dict:
966
+ return (prediction_scores,) + transformer_outputs[1:]
967
+
968
+ return TFTransfoXLLMHeadModelOutput(
969
+ prediction_scores=prediction_scores,
970
+ mems=transformer_outputs.mems,
971
+ hidden_states=transformer_outputs.hidden_states,
972
+ attentions=transformer_outputs.attentions,
973
+ )
974
+
975
+ def prepare_inputs_for_generation(self, input_ids, past_key_values=None, **model_kwargs):
976
+ inputs = {}
977
+
978
+ # if past is defined in model kwargs then use it for faster decoding
979
+ if past_key_values:
980
+ input_ids = tf.expand_dims(input_ids[:, -1], axis=-1)
981
+ else:
982
+ input_ids = input_ids
983
+
984
+ return inputs
985
+
986
+ # Adapted from the torch tie_weights function
987
+ def tf_to_pt_weight_rename(self, tf_weight):
988
+ if self.config.tie_word_embeddings and "crit.out_layers" in tf_weight:
989
+ return tf_weight, tf_weight.replace("crit.out_layers", "transformer.word_emb.emb_layers")
990
+ elif self.config.tie_projs and "crit.out_projs" in tf_weight:
991
+ for i, tie_proj in enumerate(self.config.tie_projs):
992
+ if tie_proj and self.config.div_val == 1 and self.config.d_model != self.config.d_embed:
993
+ # self.crit.out_projs[i] = self.transformer.word_emb.emb_projs[0]
994
+ return tf_weight, tf_weight.replace(f"crit.out_projs.{i}", "transformer.word_emb.emb_projs.0")
995
+ elif tie_proj and self.config.div_val != 1:
996
+ # self.crit.out_projs[i] = self.transformer.word_emb.emb_projs[i]
997
+ return tf_weight, tf_weight.replace("crit.out_projs", "transformer.word_emb.emb_projs")
998
+ else:
999
+ return (tf_weight,)
1000
+
1001
+
1002
+ @add_start_docstrings(
1003
+ """
1004
+ The Transfo XL Model transformer with a sequence classification head on top (linear layer).
1005
+
1006
+ [`TFTransfoXLForSequenceClassification`] uses the last token in order to do the classification, as other causal
1007
+ models (e.g. GPT-1,GPT-2) do.
1008
+
1009
+ Since it does classification on the last token, it requires to know the position of the last token. If a
1010
+ `pad_token_id` is defined in the configuration, it finds the last token that is not a padding token in each row. If
1011
+ no `pad_token_id` is defined, it simply takes the last value in each row of the batch. Since it cannot guess the
1012
+ padding tokens when `inputs_embeds` are passed instead of `input_ids`, it does the same (take the last value in
1013
+ each row of the batch).
1014
+ """,
1015
+ TRANSFO_XL_START_DOCSTRING,
1016
+ )
1017
+ class TFTransfoXLForSequenceClassification(TFTransfoXLPreTrainedModel, TFSequenceClassificationLoss):
1018
+ def __init__(self, config, *inputs, **kwargs):
1019
+ super().__init__(config, *inputs, **kwargs)
1020
+ self.num_labels = config.num_labels
1021
+ self.score = keras.layers.Dense(
1022
+ config.num_labels,
1023
+ kernel_initializer=get_initializer(config.init_range),
1024
+ name="score",
1025
+ use_bias=False,
1026
+ )
1027
+ self.transformer = TFTransfoXLMainLayer(config, name="transformer")
1028
+
1029
+ def get_output_embeddings(self):
1030
+ # Remove after transformers v4.32. Fix this model's `test_model_common_attributes` test too.
1031
+ logger.warning(
1032
+ "Sequence classification models do not have output embeddings. `.get_output_embeddings` will be removed "
1033
+ "in transformers v4.32."
1034
+ )
1035
+ return self.transformer.word_emb
1036
+
1037
+ @unpack_inputs
1038
+ @add_start_docstrings_to_model_forward(TRANSFO_XL_INPUTS_DOCSTRING)
1039
+ @add_code_sample_docstrings(
1040
+ checkpoint=_CHECKPOINT_FOR_DOC,
1041
+ output_type=TFTransfoXLSequenceClassifierOutputWithPast,
1042
+ config_class=_CONFIG_FOR_DOC,
1043
+ )
1044
+ def call(
1045
+ self,
1046
+ input_ids: TFModelInputType | None = None,
1047
+ mems: List[tf.Tensor] | None = None,
1048
+ head_mask: np.ndarray | tf.Tensor | None = None,
1049
+ inputs_embeds: np.ndarray | tf.Tensor | None = None,
1050
+ output_attentions: Optional[bool] = None,
1051
+ output_hidden_states: Optional[bool] = None,
1052
+ return_dict: Optional[bool] = None,
1053
+ labels: np.ndarray | tf.Tensor | None = None,
1054
+ training: Optional[bool] = False,
1055
+ ) -> Union[Tuple, TFTransfoXLSequenceClassifierOutputWithPast]:
1056
+ r"""
1057
+ labels (`tf.Tensor` of shape `(batch_size, sequence_length)`, *optional*):
1058
+ Labels for computing the cross entropy classification loss. Indices should be in `[0, ...,
1059
+ config.vocab_size - 1]`.
1060
+ """
1061
+ transformer_outputs = self.transformer(
1062
+ input_ids=input_ids,
1063
+ mems=mems,
1064
+ head_mask=head_mask,
1065
+ inputs_embeds=inputs_embeds,
1066
+ output_attentions=output_attentions,
1067
+ output_hidden_states=output_hidden_states,
1068
+ return_dict=return_dict,
1069
+ training=training,
1070
+ )
1071
+
1072
+ hidden_states = transformer_outputs[0]
1073
+ logits = self.score(hidden_states)
1074
+ in_logits = None
1075
+ if self.config.pad_token_id is None:
1076
+ sequence_lengths = -1
1077
+ else:
1078
+ if input_ids is not None:
1079
+ sequence_lengths = (
1080
+ tf.argmax(tf.cast(tf.math.equal(input_ids, self.config.pad_token_id), input_ids.dtype), axis=-1)
1081
+ - 1
1082
+ )
1083
+ sequence_lengths = tf.where(sequence_lengths >= 0, sequence_lengths, input_ids.shape[-1] - 1)
1084
+ in_logits = tf.gather(logits, sequence_lengths, batch_dims=1, axis=1)
1085
+ else:
1086
+ sequence_lengths = -1
1087
+ logger.warning_once(
1088
+ f"{self.__class__.__name__} will not detect padding tokens in `inputs_embeds`. Results may be "
1089
+ "unexpected if using padding tokens in conjunction with `inputs_embeds.`"
1090
+ )
1091
+ loss = None
1092
+
1093
+ if labels is not None:
1094
+ if input_ids is not None:
1095
+ batch_size, sequence_length = shape_list(input_ids)[:2]
1096
+ else:
1097
+ batch_size, sequence_length = shape_list(inputs_embeds)[:2]
1098
+ assert (
1099
+ self.config.pad_token_id is not None or batch_size == 1
1100
+ ), "Cannot handle batch sizes > 1 if no padding token is defined."
1101
+
1102
+ if not tf.is_tensor(sequence_lengths):
1103
+ in_logits = logits[0:batch_size, sequence_lengths]
1104
+
1105
+ loss = self.hf_compute_loss(tf.reshape(labels, [-1, 1]), tf.reshape(in_logits, [-1, self.num_labels]))
1106
+
1107
+ pooled_logits = in_logits if in_logits is not None else logits
1108
+
1109
+ if not return_dict:
1110
+ output = (pooled_logits,) + transformer_outputs[1:]
1111
+ return ((loss,) + output) if loss is not None else output
1112
+
1113
+ return TFTransfoXLSequenceClassifierOutputWithPast(
1114
+ loss=loss,
1115
+ logits=pooled_logits,
1116
+ mems=transformer_outputs.mems,
1117
+ hidden_states=transformer_outputs.hidden_states,
1118
+ attentions=transformer_outputs.attentions,
1119
+ )
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/transfo_xl/modeling_tf_transfo_xl_utilities.py ADDED
@@ -0,0 +1,178 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2018 Google AI, Google Brain and Carnegie Mellon University Authors and the 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
+ """
17
+ A TF 2.0 Adaptive Softmax for Transformer XL model.
18
+ """
19
+
20
+ import tensorflow as tf
21
+
22
+ from ....modeling_tf_utils import keras
23
+ from ....tf_utils import shape_list
24
+
25
+
26
+ class TFAdaptiveSoftmaxMask(keras.layers.Layer):
27
+ def __init__(self, vocab_size, d_embed, d_proj, cutoffs, div_val=1, keep_order=False, **kwargs):
28
+ super().__init__(**kwargs)
29
+
30
+ self.vocab_size = vocab_size
31
+ self.d_embed = d_embed
32
+ self.d_proj = d_proj
33
+
34
+ self.cutoffs = cutoffs + [vocab_size]
35
+ self.cutoff_ends = [0] + self.cutoffs
36
+ self.div_val = div_val
37
+
38
+ self.shortlist_size = self.cutoffs[0]
39
+ self.n_clusters = len(self.cutoffs) - 1
40
+ self.head_size = self.shortlist_size + self.n_clusters
41
+ self.keep_order = keep_order
42
+
43
+ self.out_layers = []
44
+ self.out_projs = []
45
+
46
+ def build(self, input_shape):
47
+ if self.n_clusters > 0:
48
+ self.cluster_weight = self.add_weight(
49
+ shape=(self.n_clusters, self.d_embed), initializer="zeros", trainable=True, name="cluster_weight"
50
+ )
51
+ self.cluster_bias = self.add_weight(
52
+ shape=(self.n_clusters,), initializer="zeros", trainable=True, name="cluster_bias"
53
+ )
54
+
55
+ if self.div_val == 1:
56
+ for i in range(len(self.cutoffs)):
57
+ if self.d_proj != self.d_embed:
58
+ weight = self.add_weight(
59
+ shape=(self.d_embed, self.d_proj),
60
+ initializer="zeros",
61
+ trainable=True,
62
+ name=f"out_projs_._{i}",
63
+ )
64
+ self.out_projs.append(weight)
65
+ else:
66
+ self.out_projs.append(None)
67
+ weight = self.add_weight(
68
+ shape=(self.vocab_size, self.d_embed),
69
+ initializer="zeros",
70
+ trainable=True,
71
+ name=f"out_layers_._{i}_._weight",
72
+ )
73
+ bias = self.add_weight(
74
+ shape=(self.vocab_size,),
75
+ initializer="zeros",
76
+ trainable=True,
77
+ name=f"out_layers_._{i}_._bias",
78
+ )
79
+ self.out_layers.append((weight, bias))
80
+ else:
81
+ for i in range(len(self.cutoffs)):
82
+ l_idx, r_idx = self.cutoff_ends[i], self.cutoff_ends[i + 1]
83
+ d_emb_i = self.d_embed // (self.div_val**i)
84
+
85
+ weight = self.add_weight(
86
+ shape=(d_emb_i, self.d_proj), initializer="zeros", trainable=True, name=f"out_projs_._{i}"
87
+ )
88
+ self.out_projs.append(weight)
89
+ weight = self.add_weight(
90
+ shape=(r_idx - l_idx, d_emb_i),
91
+ initializer="zeros",
92
+ trainable=True,
93
+ name=f"out_layers_._{i}_._weight",
94
+ )
95
+ bias = self.add_weight(
96
+ shape=(r_idx - l_idx,),
97
+ initializer="zeros",
98
+ trainable=True,
99
+ name=f"out_layers_._{i}_._bias",
100
+ )
101
+ self.out_layers.append((weight, bias))
102
+ super().build(input_shape)
103
+
104
+ @staticmethod
105
+ def _logit(x, W, b, proj=None):
106
+ y = x
107
+ if proj is not None:
108
+ y = tf.einsum("ibd,ed->ibe", y, proj)
109
+ return tf.einsum("ibd,nd->ibn", y, W) + b
110
+
111
+ @staticmethod
112
+ def _gather_logprob(logprob, target):
113
+ lp_size = shape_list(logprob)
114
+ r = tf.range(lp_size[0], dtype=target.dtype)
115
+ idx = tf.stack([r, target], 1)
116
+ return tf.gather_nd(logprob, idx)
117
+
118
+ def call(self, hidden, target, return_mean=True, training=False):
119
+ head_logprob = 0
120
+ if self.n_clusters == 0:
121
+ output = self._logit(hidden, self.out_layers[0][0], self.out_layers[0][1], self.out_projs[0])
122
+ if target is not None:
123
+ loss = tf.nn.sparse_softmax_cross_entropy_with_logits(labels=target, logits=output)
124
+ out = tf.nn.log_softmax(output, axis=-1)
125
+ else:
126
+ hidden_sizes = shape_list(hidden)
127
+ out = []
128
+ loss = tf.zeros(hidden_sizes[:2])
129
+ for i in range(len(self.cutoffs)):
130
+ l_idx, r_idx = self.cutoff_ends[i], self.cutoff_ends[i + 1]
131
+ if target is not None:
132
+ mask = (target >= l_idx) & (target < r_idx)
133
+ mask_idx = tf.where(mask)
134
+ cur_target = tf.boolean_mask(target, mask) - l_idx
135
+
136
+ if self.div_val == 1:
137
+ cur_W = self.out_layers[0][0][l_idx:r_idx]
138
+ cur_b = self.out_layers[0][1][l_idx:r_idx]
139
+ else:
140
+ cur_W = self.out_layers[i][0]
141
+ cur_b = self.out_layers[i][1]
142
+
143
+ if i == 0:
144
+ cur_W = tf.concat([cur_W, self.cluster_weight], 0)
145
+ cur_b = tf.concat([cur_b, self.cluster_bias], 0)
146
+
147
+ head_logit = self._logit(hidden, cur_W, cur_b, self.out_projs[0])
148
+ head_logprob = tf.nn.log_softmax(head_logit)
149
+ out.append(head_logprob[..., : self.cutoffs[0]])
150
+ if target is not None:
151
+ cur_head_logprob = tf.boolean_mask(head_logprob, mask)
152
+ cur_logprob = self._gather_logprob(cur_head_logprob, cur_target)
153
+ else:
154
+ tail_logit = self._logit(hidden, cur_W, cur_b, self.out_projs[i])
155
+ tail_logprob = tf.nn.log_softmax(tail_logit)
156
+ cluster_prob_idx = self.cutoffs[0] + i - 1 # No probability for the head cluster
157
+ logprob_i = head_logprob[..., cluster_prob_idx, None] + tail_logprob
158
+ out.append(logprob_i)
159
+ if target is not None:
160
+ cur_head_logprob = tf.boolean_mask(head_logprob, mask)
161
+ cur_tail_logprob = tf.boolean_mask(tail_logprob, mask)
162
+ cur_logprob = self._gather_logprob(cur_tail_logprob, cur_target)
163
+ cur_logprob += cur_head_logprob[:, self.cutoff_ends[1] + i - 1]
164
+ if target is not None:
165
+ loss += tf.scatter_nd(mask_idx, -cur_logprob, shape_list(loss))
166
+ out = tf.concat(out, axis=-1)
167
+
168
+ if target is not None:
169
+ if return_mean:
170
+ loss = tf.reduce_mean(loss)
171
+ # Add the training-time loss value to the layer using `self.add_loss()`.
172
+ self.add_loss(loss)
173
+
174
+ # Log the loss as a metric (we could log arbitrary metrics,
175
+ # including different metrics for training and inference.
176
+ self.add_metric(loss, name=self.name, aggregation="mean" if return_mean else "")
177
+
178
+ return out
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/transfo_xl/modeling_transfo_xl.py ADDED
@@ -0,0 +1,1293 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2018 Google AI, Google Brain and Carnegie Mellon University Authors and the 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
+ """
17
+ PyTorch Transformer XL model. Adapted from https://github.com/kimiyoung/transformer-xl. In particular
18
+ https://github.com/kimiyoung/transformer-xl/blob/master/pytorch/mem_transformer.py
19
+ """
20
+
21
+ import warnings
22
+ from dataclasses import dataclass
23
+ from typing import List, Optional, Tuple, Union
24
+
25
+ import torch
26
+ from torch import nn
27
+ from torch.nn import BCEWithLogitsLoss, CrossEntropyLoss, MSELoss
28
+
29
+ from ....modeling_utils import PreTrainedModel
30
+ from ....utils import (
31
+ ModelOutput,
32
+ add_code_sample_docstrings,
33
+ add_start_docstrings,
34
+ add_start_docstrings_to_model_forward,
35
+ logging,
36
+ )
37
+ from .configuration_transfo_xl import TransfoXLConfig
38
+ from .modeling_transfo_xl_utilities import ProjectedAdaptiveLogSoftmax
39
+
40
+
41
+ logger = logging.get_logger(__name__)
42
+
43
+ _CHECKPOINT_FOR_DOC = "transfo-xl/transfo-xl-wt103"
44
+ _CONFIG_FOR_DOC = "TransfoXLConfig"
45
+
46
+
47
+ def build_tf_to_pytorch_map(model, config):
48
+ """
49
+ A map of modules from TF to PyTorch. This time I use a map to keep the PyTorch model as identical to the original
50
+ PyTorch model as possible.
51
+ """
52
+ tf_to_pt_map = {}
53
+
54
+ if hasattr(model, "transformer"):
55
+ # We are loading in a TransfoXLLMHeadModel => we will load also the Adaptive Softmax
56
+ tf_to_pt_map.update(
57
+ {
58
+ "transformer/adaptive_softmax/cutoff_0/cluster_W": model.crit.cluster_weight,
59
+ "transformer/adaptive_softmax/cutoff_0/cluster_b": model.crit.cluster_bias,
60
+ }
61
+ )
62
+ for i, (out_l, proj_l, tie_proj) in enumerate(
63
+ zip(model.crit.out_layers, model.crit.out_projs, config.tie_projs)
64
+ ):
65
+ layer_str = f"transformer/adaptive_softmax/cutoff_{i}/"
66
+ if config.tie_word_embeddings:
67
+ tf_to_pt_map.update({layer_str + "b": out_l.bias})
68
+ else:
69
+ raise NotImplementedError
70
+ # I don't think this is implemented in the TF code
71
+ tf_to_pt_map.update({layer_str + "lookup_table": out_l.weight, layer_str + "b": out_l.bias})
72
+ if not tie_proj:
73
+ tf_to_pt_map.update({layer_str + "proj": proj_l})
74
+ # Now load the rest of the transformer
75
+ model = model.transformer
76
+
77
+ # Embeddings
78
+ for i, (embed_l, proj_l) in enumerate(zip(model.word_emb.emb_layers, model.word_emb.emb_projs)):
79
+ layer_str = f"transformer/adaptive_embed/cutoff_{i}/"
80
+ tf_to_pt_map.update({layer_str + "lookup_table": embed_l.weight, layer_str + "proj_W": proj_l})
81
+
82
+ # Transformer blocks
83
+ for i, b in enumerate(model.layers):
84
+ layer_str = f"transformer/layer_{i}/"
85
+ tf_to_pt_map.update(
86
+ {
87
+ layer_str + "rel_attn/LayerNorm/gamma": b.dec_attn.layer_norm.weight,
88
+ layer_str + "rel_attn/LayerNorm/beta": b.dec_attn.layer_norm.bias,
89
+ layer_str + "rel_attn/o/kernel": b.dec_attn.o_net.weight,
90
+ layer_str + "rel_attn/qkv/kernel": b.dec_attn.qkv_net.weight,
91
+ layer_str + "rel_attn/r/kernel": b.dec_attn.r_net.weight,
92
+ layer_str + "ff/LayerNorm/gamma": b.pos_ff.layer_norm.weight,
93
+ layer_str + "ff/LayerNorm/beta": b.pos_ff.layer_norm.bias,
94
+ layer_str + "ff/layer_1/kernel": b.pos_ff.CoreNet[0].weight,
95
+ layer_str + "ff/layer_1/bias": b.pos_ff.CoreNet[0].bias,
96
+ layer_str + "ff/layer_2/kernel": b.pos_ff.CoreNet[3].weight,
97
+ layer_str + "ff/layer_2/bias": b.pos_ff.CoreNet[3].bias,
98
+ }
99
+ )
100
+
101
+ # Relative positioning biases
102
+ if config.untie_r:
103
+ r_r_list = []
104
+ r_w_list = []
105
+ for b in model.layers:
106
+ r_r_list.append(b.dec_attn.r_r_bias)
107
+ r_w_list.append(b.dec_attn.r_w_bias)
108
+ else:
109
+ r_r_list = [model.r_r_bias]
110
+ r_w_list = [model.r_w_bias]
111
+ tf_to_pt_map.update({"transformer/r_r_bias": r_r_list, "transformer/r_w_bias": r_w_list})
112
+ return tf_to_pt_map
113
+
114
+
115
+ def load_tf_weights_in_transfo_xl(model, config, tf_path):
116
+ """Load tf checkpoints in a pytorch model"""
117
+ try:
118
+ import numpy as np
119
+ import tensorflow as tf
120
+ except ImportError:
121
+ logger.error(
122
+ "Loading a TensorFlow models in PyTorch, requires TensorFlow to be installed. Please see "
123
+ "https://www.tensorflow.org/install/ for installation instructions."
124
+ )
125
+ raise
126
+ # Build TF to PyTorch weights loading map
127
+ tf_to_pt_map = build_tf_to_pytorch_map(model, config)
128
+
129
+ # Load weights from TF model
130
+ init_vars = tf.train.list_variables(tf_path)
131
+ tf_weights = {}
132
+ for name, shape in init_vars:
133
+ logger.info(f"Loading TF weight {name} with shape {shape}")
134
+ array = tf.train.load_variable(tf_path, name)
135
+ tf_weights[name] = array
136
+
137
+ for name, pointer in tf_to_pt_map.items():
138
+ assert name in tf_weights
139
+ array = tf_weights[name]
140
+ # adam_v and adam_m are variables used in AdamWeightDecayOptimizer to calculated m and v
141
+ # which are not required for using pretrained model
142
+ if "kernel" in name or "proj" in name:
143
+ array = np.transpose(array)
144
+ if ("r_r_bias" in name or "r_w_bias" in name) and len(pointer) > 1:
145
+ # Here we will split the TF weights
146
+ assert len(pointer) == array.shape[0]
147
+ for i, p_i in enumerate(pointer):
148
+ arr_i = array[i, ...]
149
+ try:
150
+ assert p_i.shape == arr_i.shape
151
+ except AssertionError as e:
152
+ e.args += (p_i.shape, arr_i.shape)
153
+ raise
154
+ logger.info(f"Initialize PyTorch weight {name} for layer {i}")
155
+ p_i.data = torch.from_numpy(arr_i)
156
+ else:
157
+ try:
158
+ assert (
159
+ pointer.shape == array.shape
160
+ ), f"Pointer shape {pointer.shape} and array shape {array.shape} mismatched"
161
+ except AssertionError as e:
162
+ e.args += (pointer.shape, array.shape)
163
+ raise
164
+ logger.info(f"Initialize PyTorch weight {name}")
165
+ pointer.data = torch.from_numpy(array)
166
+ tf_weights.pop(name, None)
167
+ tf_weights.pop(name + "/Adam", None)
168
+ tf_weights.pop(name + "/Adam_1", None)
169
+
170
+ logger.info(f"Weights not copied to PyTorch model: {', '.join(tf_weights.keys())}")
171
+ return model
172
+
173
+
174
+ class PositionalEmbedding(nn.Module):
175
+ def __init__(self, demb):
176
+ super().__init__()
177
+
178
+ self.demb = demb
179
+
180
+ inv_freq = 1 / (10000 ** (torch.arange(0.0, demb, 2.0) / demb))
181
+ self.register_buffer("inv_freq", inv_freq)
182
+
183
+ def forward(self, pos_seq, bsz=None):
184
+ sinusoid_inp = torch.outer(pos_seq, self.inv_freq)
185
+ pos_emb = torch.cat([sinusoid_inp.sin(), sinusoid_inp.cos()], dim=-1)
186
+
187
+ if bsz is not None:
188
+ return pos_emb[:, None, :].expand(-1, bsz, -1)
189
+ else:
190
+ return pos_emb[:, None, :]
191
+
192
+
193
+ class PositionwiseFF(nn.Module):
194
+ def __init__(self, d_model, d_inner, dropout, pre_lnorm=False, layer_norm_epsilon=1e-5):
195
+ super().__init__()
196
+
197
+ self.d_model = d_model
198
+ self.d_inner = d_inner
199
+ self.dropout = dropout
200
+
201
+ self.CoreNet = nn.Sequential(
202
+ nn.Linear(d_model, d_inner),
203
+ nn.ReLU(inplace=True),
204
+ nn.Dropout(dropout),
205
+ nn.Linear(d_inner, d_model),
206
+ nn.Dropout(dropout),
207
+ )
208
+
209
+ self.layer_norm = nn.LayerNorm(d_model, eps=layer_norm_epsilon)
210
+
211
+ self.pre_lnorm = pre_lnorm
212
+
213
+ def forward(self, inp):
214
+ if self.pre_lnorm:
215
+ # layer normalization + positionwise feed-forward
216
+ core_out = self.CoreNet(self.layer_norm(inp))
217
+
218
+ # residual connection
219
+ output = core_out + inp
220
+ else:
221
+ # positionwise feed-forward
222
+ core_out = self.CoreNet(inp)
223
+
224
+ # residual connection + layer normalization
225
+ output = self.layer_norm(inp + core_out)
226
+
227
+ return output
228
+
229
+
230
+ class RelPartialLearnableMultiHeadAttn(nn.Module):
231
+ def __init__(
232
+ self,
233
+ n_head,
234
+ d_model,
235
+ d_head,
236
+ dropout,
237
+ dropatt=0,
238
+ pre_lnorm=False,
239
+ r_r_bias=None,
240
+ r_w_bias=None,
241
+ layer_norm_epsilon=1e-5,
242
+ ):
243
+ super().__init__()
244
+
245
+ self.n_head = n_head
246
+ self.d_model = d_model
247
+ self.d_head = d_head
248
+ self.dropout = dropout
249
+
250
+ self.qkv_net = nn.Linear(d_model, 3 * n_head * d_head, bias=False)
251
+
252
+ self.drop = nn.Dropout(dropout)
253
+ self.dropatt = nn.Dropout(dropatt)
254
+ self.o_net = nn.Linear(n_head * d_head, d_model, bias=False)
255
+
256
+ self.layer_norm = nn.LayerNorm(d_model, eps=layer_norm_epsilon)
257
+
258
+ self.scale = 1 / (d_head**0.5)
259
+
260
+ self.pre_lnorm = pre_lnorm
261
+
262
+ if r_r_bias is None or r_w_bias is None: # Biases are not shared
263
+ self.r_r_bias = nn.Parameter(torch.FloatTensor(self.n_head, self.d_head))
264
+ self.r_w_bias = nn.Parameter(torch.FloatTensor(self.n_head, self.d_head))
265
+ else:
266
+ self.r_r_bias = r_r_bias
267
+ self.r_w_bias = r_w_bias
268
+
269
+ self.r_net = nn.Linear(self.d_model, self.n_head * self.d_head, bias=False)
270
+
271
+ def _rel_shift(self, x):
272
+ zero_pad_shape = (x.size(0), 1) + x.size()[2:]
273
+ zero_pad = torch.zeros(zero_pad_shape, device=x.device, dtype=x.dtype)
274
+ x_padded = torch.cat([zero_pad, x], dim=1)
275
+
276
+ x_padded_shape = (x.size(1) + 1, x.size(0)) + x.size()[2:]
277
+ x_padded = x_padded.view(*x_padded_shape)
278
+
279
+ x = x_padded[1:].view_as(x)
280
+
281
+ return x
282
+
283
+ def forward(self, w, r, attn_mask=None, mems=None, head_mask=None, output_attentions=False):
284
+ qlen, rlen, bsz = w.size(0), r.size(0), w.size(1)
285
+
286
+ if mems is not None:
287
+ cat = torch.cat([mems, w], 0)
288
+ if self.pre_lnorm:
289
+ w_heads = self.qkv_net(self.layer_norm(cat))
290
+ else:
291
+ w_heads = self.qkv_net(cat)
292
+ r_head_k = self.r_net(r)
293
+
294
+ w_head_q, w_head_k, w_head_v = torch.chunk(w_heads, 3, dim=-1)
295
+ w_head_q = w_head_q[-qlen:]
296
+ else:
297
+ if self.pre_lnorm:
298
+ w_heads = self.qkv_net(self.layer_norm(w))
299
+ else:
300
+ w_heads = self.qkv_net(w)
301
+ r_head_k = self.r_net(r)
302
+
303
+ w_head_q, w_head_k, w_head_v = torch.chunk(w_heads, 3, dim=-1)
304
+
305
+ klen = w_head_k.size(0)
306
+
307
+ w_head_q = w_head_q.view(qlen, bsz, self.n_head, self.d_head) # qlen x bsz x n_head x d_head
308
+ w_head_k = w_head_k.view(klen, bsz, self.n_head, self.d_head) # qlen x bsz x n_head x d_head
309
+ w_head_v = w_head_v.view(klen, bsz, self.n_head, self.d_head) # qlen x bsz x n_head x d_head
310
+
311
+ r_head_k = r_head_k.view(rlen, self.n_head, self.d_head) # qlen x n_head x d_head
312
+
313
+ # compute attention score
314
+ rw_head_q = w_head_q + self.r_w_bias # qlen x bsz x n_head x d_head
315
+ AC = torch.einsum("ibnd,jbnd->ijbn", (rw_head_q, w_head_k)) # qlen x klen x bsz x n_head
316
+
317
+ rr_head_q = w_head_q + self.r_r_bias
318
+ BD = torch.einsum("ibnd,jnd->ijbn", (rr_head_q, r_head_k)) # qlen x klen x bsz x n_head
319
+ BD = self._rel_shift(BD)
320
+
321
+ # [qlen x klen x bsz x n_head]
322
+ attn_score = AC + BD
323
+ attn_score.mul_(self.scale)
324
+
325
+ mask_value = torch.finfo(attn_score.dtype).min
326
+
327
+ # compute attention probability
328
+ if attn_mask is not None and torch.sum(attn_mask).item():
329
+ attn_mask = attn_mask == 1 # Switch to bool
330
+ if attn_mask.dim() == 2:
331
+ attn_score = (
332
+ attn_score.float().masked_fill(attn_mask[None, :, :, None], mask_value).type_as(attn_score)
333
+ )
334
+ elif attn_mask.dim() == 3:
335
+ attn_score = attn_score.float().masked_fill(attn_mask[:, :, :, None], mask_value).type_as(attn_score)
336
+
337
+ # [qlen x klen x bsz x n_head]
338
+ attn_prob = nn.functional.softmax(attn_score, dim=1)
339
+ attn_prob = self.dropatt(attn_prob)
340
+
341
+ # Mask heads if we want to
342
+ if head_mask is not None:
343
+ attn_prob = attn_prob * head_mask
344
+
345
+ # compute attention vector
346
+ attn_vec = torch.einsum("ijbn,jbnd->ibnd", (attn_prob, w_head_v))
347
+
348
+ # [qlen x bsz x n_head x d_head]
349
+ attn_vec = attn_vec.contiguous().view(attn_vec.size(0), attn_vec.size(1), self.n_head * self.d_head)
350
+
351
+ # linear projection
352
+ attn_out = self.o_net(attn_vec)
353
+ attn_out = self.drop(attn_out)
354
+
355
+ if self.pre_lnorm:
356
+ # residual connection
357
+ outputs = [w + attn_out]
358
+ else:
359
+ # residual connection + layer normalization
360
+ outputs = [self.layer_norm(w + attn_out)]
361
+
362
+ if output_attentions:
363
+ outputs.append(attn_prob)
364
+
365
+ return outputs
366
+
367
+
368
+ class RelPartialLearnableDecoderLayer(nn.Module):
369
+ def __init__(self, n_head, d_model, d_head, d_inner, dropout, layer_norm_epsilon=1e-5, **kwargs):
370
+ super().__init__()
371
+
372
+ self.dec_attn = RelPartialLearnableMultiHeadAttn(
373
+ n_head, d_model, d_head, dropout, layer_norm_epsilon=layer_norm_epsilon, **kwargs
374
+ )
375
+ self.pos_ff = PositionwiseFF(
376
+ d_model, d_inner, dropout, pre_lnorm=kwargs.get("pre_lnorm"), layer_norm_epsilon=layer_norm_epsilon
377
+ )
378
+
379
+ def forward(self, dec_inp, r, dec_attn_mask=None, mems=None, head_mask=None, output_attentions=False):
380
+ attn_outputs = self.dec_attn(
381
+ dec_inp,
382
+ r,
383
+ attn_mask=dec_attn_mask,
384
+ mems=mems,
385
+ head_mask=head_mask,
386
+ output_attentions=output_attentions,
387
+ )
388
+ ff_output = self.pos_ff(attn_outputs[0])
389
+
390
+ outputs = [ff_output] + attn_outputs[1:]
391
+
392
+ return outputs
393
+
394
+
395
+ class AdaptiveEmbedding(nn.Module):
396
+ def __init__(self, n_token, d_embed, d_proj, cutoffs, div_val=1, sample_softmax=False):
397
+ super().__init__()
398
+
399
+ self.n_token = n_token
400
+ self.d_embed = d_embed
401
+
402
+ self.cutoffs = cutoffs + [n_token]
403
+ self.div_val = div_val
404
+ self.d_proj = d_proj
405
+
406
+ self.emb_scale = d_proj**0.5
407
+
408
+ self.cutoff_ends = [0] + self.cutoffs
409
+
410
+ self.emb_layers = nn.ModuleList()
411
+ self.emb_projs = nn.ParameterList()
412
+ if div_val == 1:
413
+ self.emb_layers.append(nn.Embedding(n_token, d_embed, sparse=sample_softmax > 0))
414
+ if d_proj != d_embed:
415
+ self.emb_projs.append(nn.Parameter(torch.FloatTensor(d_proj, d_embed)))
416
+ else:
417
+ for i in range(len(self.cutoffs)):
418
+ l_idx, r_idx = self.cutoff_ends[i], self.cutoff_ends[i + 1]
419
+ d_emb_i = d_embed // (div_val**i)
420
+ self.emb_layers.append(nn.Embedding(r_idx - l_idx, d_emb_i))
421
+ self.emb_projs.append(nn.Parameter(torch.FloatTensor(d_proj, d_emb_i)))
422
+
423
+ def forward(self, inp):
424
+ if self.div_val == 1:
425
+ embed = self.emb_layers[0](inp)
426
+ if self.d_proj != self.d_embed:
427
+ embed = nn.functional.linear(embed, self.emb_projs[0])
428
+ else:
429
+ param = next(self.parameters())
430
+ inp_flat = inp.view(-1)
431
+ emb_flat = torch.zeros([inp_flat.size(0), self.d_proj], dtype=param.dtype, device=param.device)
432
+ for i in range(len(self.cutoffs)):
433
+ l_idx, r_idx = self.cutoff_ends[i], self.cutoff_ends[i + 1]
434
+
435
+ mask_i = (inp_flat >= l_idx) & (inp_flat < r_idx)
436
+ indices_i = mask_i.nonzero().squeeze()
437
+
438
+ if indices_i.numel() == 0:
439
+ continue
440
+
441
+ inp_i = inp_flat.index_select(0, indices_i) - l_idx
442
+ emb_i = self.emb_layers[i](inp_i)
443
+ emb_i = nn.functional.linear(emb_i, self.emb_projs[i])
444
+
445
+ emb_flat.index_copy_(0, indices_i, emb_i)
446
+
447
+ embed_shape = inp.size() + (self.d_proj,)
448
+ embed = emb_flat.view(embed_shape)
449
+
450
+ embed.mul_(self.emb_scale)
451
+
452
+ return embed
453
+
454
+
455
+ class TransfoXLPreTrainedModel(PreTrainedModel):
456
+ """
457
+ An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained
458
+ models.
459
+ """
460
+
461
+ config_class = TransfoXLConfig
462
+ load_tf_weights = load_tf_weights_in_transfo_xl
463
+ base_model_prefix = "transformer"
464
+
465
+ def _init_weight(self, weight):
466
+ if self.config.init == "uniform":
467
+ nn.init.uniform_(weight, -self.config.init_range, self.config.init_range)
468
+ elif self.config.init == "normal":
469
+ nn.init.normal_(weight, 0.0, self.config.init_std)
470
+
471
+ def _init_bias(self, bias):
472
+ nn.init.constant_(bias, 0.0)
473
+
474
+ def _init_weights(self, m):
475
+ """Initialize the weights."""
476
+ classname = m.__class__.__name__
477
+ if classname.find("Linear") != -1:
478
+ if hasattr(m, "weight") and m.weight is not None:
479
+ self._init_weight(m.weight)
480
+ if hasattr(m, "bias") and m.bias is not None:
481
+ self._init_bias(m.bias)
482
+ elif classname.find("AdaptiveEmbedding") != -1:
483
+ if hasattr(m, "emb_projs"):
484
+ for i in range(len(m.emb_projs)):
485
+ if m.emb_projs[i] is not None:
486
+ nn.init.normal_(m.emb_projs[i], 0.0, self.config.proj_init_std)
487
+ elif classname.find("Embedding") != -1:
488
+ if hasattr(m, "weight"):
489
+ self._init_weight(m.weight)
490
+ elif classname.find("ProjectedAdaptiveLogSoftmax") != -1:
491
+ if hasattr(m, "cluster_weight") and m.cluster_weight is not None:
492
+ self._init_weight(m.cluster_weight)
493
+ if hasattr(m, "cluster_bias") and m.cluster_bias is not None:
494
+ self._init_bias(m.cluster_bias)
495
+ if hasattr(m, "out_projs"):
496
+ for i in range(len(m.out_projs)):
497
+ if m.out_projs[i] is not None:
498
+ nn.init.normal_(m.out_projs[i], 0.0, self.config.proj_init_std)
499
+ elif classname.find("LayerNorm") != -1:
500
+ if hasattr(m, "weight"):
501
+ nn.init.normal_(m.weight, 1.0, self.config.init_std)
502
+ if hasattr(m, "bias") and m.bias is not None:
503
+ self._init_bias(m.bias)
504
+ else:
505
+ if hasattr(m, "r_emb"):
506
+ self._init_weight(m.r_emb)
507
+ if hasattr(m, "r_w_bias"):
508
+ self._init_weight(m.r_w_bias)
509
+ if hasattr(m, "r_r_bias"):
510
+ self._init_weight(m.r_r_bias)
511
+ if hasattr(m, "r_bias"):
512
+ self._init_bias(m.r_bias)
513
+
514
+ def resize_token_embeddings(self, new_num_tokens: Optional[int] = None, layer: Optional[int] = -1):
515
+ """
516
+ Resize input token embeddings matrix of the model if new_num_tokens != config.vocab_size. Take care of tying
517
+ weights embeddings afterwards if the model class has a *tie_weights()* method.
518
+
519
+ Arguments:
520
+ new_num_tokens: (*optional*) int:
521
+ New number of tokens in the embedding matrix. Increasing the size will add newly initialized vectors at
522
+ the end. Reducing the size will remove vectors from the end. If not provided or None: does nothing and
523
+ just returns a pointer to the input tokens `torch.nn.Embeddings` Module of the model.
524
+ layer: (*optional*) int:
525
+ Layer of the *AdaptiveEmbedding* where the resizing should be done. Per default the last layer will be
526
+ resized. Be aware that when resizing other than the last layer, you have to ensure that the new
527
+ token(s) in the tokenizer are at the corresponding position.
528
+
529
+ Return: `torch.nn.Embeddings` Pointer to the input tokens Embeddings Module of the model
530
+ """
531
+ base_model = getattr(self, self.base_model_prefix, self) # get the base model if needed
532
+
533
+ if new_num_tokens is None:
534
+ return self.get_input_embeddings()
535
+
536
+ new_num_tokens_layer, layer = self._get_new_num_tokens_layer(new_num_tokens, layer)
537
+ assert new_num_tokens_layer > 0, "The size of the new embedding layer cannot be 0 or less"
538
+ model_embeds = base_model._resize_token_embeddings(new_num_tokens_layer, layer)
539
+
540
+ # Update base model and current model config
541
+ self.config.vocab_size = new_num_tokens
542
+ base_model.vocab_size = new_num_tokens
543
+ base_model.n_token = new_num_tokens
544
+
545
+ new_embedding_shapes = self._get_embedding_shapes()
546
+ self._resize_cutoffs(new_num_tokens, new_num_tokens_layer, new_embedding_shapes, layer)
547
+
548
+ # Tie weights again if needed
549
+ self.tie_weights()
550
+
551
+ return model_embeds
552
+
553
+ def _get_new_num_tokens_layer(self, new_num_tokens, layer):
554
+ embeddings = self.get_input_embeddings()
555
+ if layer == -1:
556
+ layer = len(embeddings.emb_layers) - 1
557
+ assert 0 <= layer <= len(embeddings.emb_layers) - 1
558
+
559
+ new_num_tokens_layer = (
560
+ new_num_tokens
561
+ - sum([emb.weight.shape[0] for emb in embeddings.emb_layers[:layer]])
562
+ - sum([emb.weight.shape[0] for emb in embeddings.emb_layers[layer + 1 :]])
563
+ )
564
+ return new_num_tokens_layer, layer
565
+
566
+ def _get_embedding_shapes(self):
567
+ embeddings = self.get_input_embeddings()
568
+ return [emb.weight.shape[0] for emb in embeddings.emb_layers]
569
+
570
+ def _resize_token_embeddings(self, new_num_tokens, layer=-1):
571
+ embeddings = self.get_input_embeddings()
572
+ if new_num_tokens is None:
573
+ return embeddings
574
+ new_embeddings_layer = self._get_resized_embeddings(embeddings.emb_layers[layer], new_num_tokens)
575
+ embeddings.emb_layers[layer] = new_embeddings_layer
576
+
577
+ self.set_input_embeddings(embeddings)
578
+
579
+ return self.get_input_embeddings()
580
+
581
+ def _resize_cutoffs(self, new_num_tokens, new_emb_size, new_embedding_shapes, layer):
582
+ embeddings = self.get_input_embeddings()
583
+
584
+ for i in range(layer, len(embeddings.cutoffs)):
585
+ embeddings.cutoffs[i] = sum(new_embedding_shapes[: i + 1])
586
+
587
+ embeddings.cutoff_ends = [0] + embeddings.cutoffs
588
+ embeddings.n_token = new_num_tokens
589
+
590
+ self.config.cutoffs = embeddings.cutoffs[:-1]
591
+
592
+ return embeddings.cutoffs
593
+
594
+
595
+ @dataclass
596
+ class TransfoXLModelOutput(ModelOutput):
597
+ """
598
+ Base class for model's outputs that may also contain a past key/values (to speed up sequential decoding).
599
+
600
+ Args:
601
+ last_hidden_state (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`):
602
+ Sequence of hidden-states at the output of the last layer of the model.
603
+ mems (`List[torch.FloatTensor]` of length `config.n_layers`):
604
+ Contains pre-computed hidden-states (key and values in the attention blocks). Can be used (see `mems`
605
+ input) to speed up sequential decoding. The token ids which have their past given to this model should not
606
+ be passed as input ids as they have already been computed.
607
+ hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
608
+ Tuple of `torch.FloatTensor` (one for the output of the embeddings + one for the output of each layer) of
609
+ shape `(batch_size, sequence_length, hidden_size)`.
610
+
611
+ Hidden-states of the model at the output of each layer plus the initial embedding outputs.
612
+ attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
613
+ Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
614
+ sequence_length)`.
615
+
616
+ Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
617
+ heads.
618
+ """
619
+
620
+ last_hidden_state: torch.FloatTensor
621
+ mems: List[torch.FloatTensor] = None
622
+ hidden_states: Optional[Tuple[torch.FloatTensor]] = None
623
+ attentions: Optional[Tuple[torch.FloatTensor]] = None
624
+
625
+
626
+ @dataclass
627
+ class TransfoXLSequenceClassifierOutputWithPast(ModelOutput):
628
+ """
629
+ Base class for outputs of sentence classification models.
630
+
631
+ Args:
632
+ loss (`torch.FloatTensor` of shape `(1,)`, *optional*, returned when `labels` is provided):
633
+ Classification (or regression if config.num_labels==1) loss.
634
+ logits (`torch.FloatTensor` of shape `(batch_size, config.num_labels)`):
635
+ Classification (or regression if config.num_labels==1) scores (before SoftMax).
636
+ mems (`List[torch.FloatTensor]` of length `config.n_layers`):
637
+ Contains pre-computed hidden-states (key and values in the attention blocks). Can be used (see `mems`
638
+ input) to speed up sequential decoding. The token ids which have their past given to this model should not
639
+ be passed as input ids as they have already been computed.
640
+ hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
641
+ Tuple of `torch.FloatTensor` (one for the output of the embeddings + one for the output of each layer) of
642
+ shape `(batch_size, sequence_length, hidden_size)`.
643
+
644
+ Hidden-states of the model at the output of each layer plus the initial embedding outputs.
645
+ attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
646
+ Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
647
+ sequence_length)`.
648
+
649
+ Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
650
+ heads.
651
+ """
652
+
653
+ loss: Optional[torch.FloatTensor] = None
654
+ logits: torch.FloatTensor = None
655
+ mems: List[torch.FloatTensor] = None
656
+ hidden_states: Optional[Tuple[torch.FloatTensor]] = None
657
+ attentions: Optional[Tuple[torch.FloatTensor]] = None
658
+
659
+
660
+ @dataclass
661
+ class TransfoXLLMHeadModelOutput(ModelOutput):
662
+ """
663
+ Base class for model's outputs that may also contain a past key/values (to speed up sequential decoding).
664
+
665
+ Args:
666
+ losses (`torch.FloatTensor` of shape *(batch_size, sequence_length-1)*, *optional*, returned when `labels` is provided):
667
+ Language modeling losses (not reduced).
668
+ prediction_scores (`torch.FloatTensor` of shape `(batch_size, sequence_length, config.vocab_size)`):
669
+ Prediction scores of the language modeling head (scores for each vocabulary token after SoftMax).
670
+ mems (`List[torch.FloatTensor]` of length `config.n_layers`):
671
+ Contains pre-computed hidden-states (key and values in the attention blocks). Can be used (see `mems`
672
+ input) to speed up sequential decoding. The token ids which have their past given to this model should not
673
+ be passed as input ids as they have already been computed.
674
+ hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
675
+ Tuple of `torch.FloatTensor` (one for the output of the embeddings + one for the output of each layer) of
676
+ shape `(batch_size, sequence_length, hidden_size)`.
677
+
678
+ Hidden-states of the model at the output of each layer plus the initial embedding outputs.
679
+ attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
680
+ Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
681
+ sequence_length)`.
682
+
683
+ Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
684
+ heads.
685
+ loss (`torch.FloatTensor` of shape `()`, *optional*, returned when `labels` is provided)
686
+ Reduced language modeling loss.
687
+ """
688
+
689
+ losses: Optional[torch.FloatTensor] = None
690
+ prediction_scores: torch.FloatTensor = None
691
+ mems: List[torch.FloatTensor] = None
692
+ hidden_states: Optional[Tuple[torch.FloatTensor]] = None
693
+ attentions: Optional[Tuple[torch.FloatTensor]] = None
694
+ loss: Optional[torch.FloatTensor] = None
695
+
696
+ @property
697
+ def logits(self):
698
+ # prediction scores are the output of the adaptive softmax, see
699
+ # the file `modeling_transfo_xl_utilities`. Since the adaptive
700
+ # softmax returns the log softmax value, `self.prediction_scores`
701
+ # are strictly speaking not exactly `logits`, but behave the same
702
+ # way logits do.
703
+ return self.prediction_scores
704
+
705
+
706
+ TRANSFO_XL_START_DOCSTRING = r"""
707
+
708
+ This model inherits from [`PreTrainedModel`]. Check the superclass documentation for the generic methods the
709
+ library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads
710
+ etc.)
711
+
712
+ This model is also a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass.
713
+ Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage
714
+ and behavior.
715
+
716
+ Parameters:
717
+ config ([`TransfoXLConfig`]): Model configuration class with all the parameters of the model.
718
+ Initializing with a config file does not load the weights associated with the model, only the
719
+ configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights.
720
+ """
721
+
722
+ TRANSFO_XL_INPUTS_DOCSTRING = r"""
723
+ Args:
724
+ input_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`):
725
+ Indices of input sequence tokens in the vocabulary.
726
+
727
+ Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and
728
+ [`PreTrainedTokenizer.__call__`] for details.
729
+
730
+ [What are input IDs?](../glossary#input-ids)
731
+ mems (`List[torch.FloatTensor]` of length `config.n_layers`):
732
+ Contains pre-computed hidden-states (key and values in the attention blocks) as computed by the model (see
733
+ `mems` output below). Can be used to speed up sequential decoding. The token ids which have their mems
734
+ given to this model should not be passed as `input_ids` as they have already been computed.
735
+ head_mask (`torch.FloatTensor` of shape `(num_heads,)` or `(num_layers, num_heads)`, *optional*):
736
+ Mask to nullify selected heads of the self-attention modules. Mask values selected in `[0, 1]`:
737
+
738
+ - 1 indicates the head is **not masked**,
739
+ - 0 indicates the head is **masked**.
740
+
741
+ inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*):
742
+ Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. This
743
+ is useful if you want more control over how to convert `input_ids` indices into associated vectors than the
744
+ model's internal embedding lookup matrix.
745
+ output_attentions (`bool`, *optional*):
746
+ Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned
747
+ tensors for more detail.
748
+ output_hidden_states (`bool`, *optional*):
749
+ Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
750
+ more detail.
751
+ return_dict (`bool`, *optional*):
752
+ Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
753
+ """
754
+
755
+
756
+ @add_start_docstrings(
757
+ "The bare Bert Model transformer outputting raw hidden-states without any specific head on top.",
758
+ TRANSFO_XL_START_DOCSTRING,
759
+ )
760
+ class TransfoXLModel(TransfoXLPreTrainedModel):
761
+ def __init__(self, config):
762
+ super().__init__(config)
763
+
764
+ self.n_token = config.vocab_size
765
+
766
+ self.d_embed = config.d_embed
767
+ self.d_model = config.d_model
768
+ self.n_head = config.n_head
769
+ self.d_head = config.d_head
770
+
771
+ self.word_emb = AdaptiveEmbedding(
772
+ config.vocab_size, config.d_embed, config.d_model, config.cutoffs, div_val=config.div_val
773
+ )
774
+
775
+ self.drop = nn.Dropout(config.dropout)
776
+
777
+ self.n_layer = config.n_layer
778
+ self.mem_len = config.mem_len
779
+ self.attn_type = config.attn_type
780
+
781
+ if not config.untie_r:
782
+ self.r_w_bias = nn.Parameter(torch.FloatTensor(self.n_head, self.d_head))
783
+ self.r_r_bias = nn.Parameter(torch.FloatTensor(self.n_head, self.d_head))
784
+
785
+ self.layers = nn.ModuleList()
786
+ if config.attn_type == 0: # the default attention
787
+ for i in range(config.n_layer):
788
+ self.layers.append(
789
+ RelPartialLearnableDecoderLayer(
790
+ config.n_head,
791
+ config.d_model,
792
+ config.d_head,
793
+ config.d_inner,
794
+ config.dropout,
795
+ dropatt=config.dropatt,
796
+ pre_lnorm=config.pre_lnorm,
797
+ r_w_bias=None if config.untie_r else self.r_w_bias,
798
+ r_r_bias=None if config.untie_r else self.r_r_bias,
799
+ layer_norm_epsilon=config.layer_norm_epsilon,
800
+ )
801
+ )
802
+ else: # learnable embeddings and absolute embeddings are not used in our pretrained checkpoints
803
+ raise NotImplementedError # Removed them to avoid maintaining dead code
804
+
805
+ self.same_length = config.same_length
806
+ self.clamp_len = config.clamp_len
807
+
808
+ if self.attn_type == 0: # default attention
809
+ self.pos_emb = PositionalEmbedding(self.d_model)
810
+ else: # learnable embeddings and absolute embeddings
811
+ raise NotImplementedError # Removed these to avoid maintaining dead code - They are not used in our pretrained checkpoint
812
+
813
+ # Initialize weights and apply final processing
814
+ self.post_init()
815
+
816
+ def get_input_embeddings(self):
817
+ return self.word_emb
818
+
819
+ def set_input_embeddings(self, new_embeddings):
820
+ self.word_emb = new_embeddings
821
+
822
+ def backward_compatible(self):
823
+ self.sample_softmax = -1
824
+
825
+ def reset_memory_length(self, mem_len):
826
+ self.mem_len = mem_len
827
+
828
+ def _prune_heads(self, heads):
829
+ logger.info("Head pruning is not implemented for Transformer-XL model")
830
+ pass
831
+
832
+ def init_mems(self, bsz):
833
+ if self.mem_len > 0:
834
+ mems = []
835
+ param = next(self.parameters())
836
+ for i in range(self.n_layer):
837
+ empty = torch.zeros(self.mem_len, bsz, self.config.d_model, dtype=param.dtype, device=param.device)
838
+ mems.append(empty)
839
+
840
+ return mems
841
+ else:
842
+ return None
843
+
844
+ def _update_mems(self, hids, mems, mlen, qlen):
845
+ # does not deal with None
846
+ if mems is None:
847
+ return None
848
+
849
+ # mems is not None
850
+ assert len(hids) == len(mems), "len(hids) != len(mems)"
851
+
852
+ # There are `mlen + qlen` steps that can be cached into mems
853
+ with torch.no_grad():
854
+ new_mems = []
855
+ end_idx = mlen + max(0, qlen)
856
+ beg_idx = max(0, end_idx - self.mem_len)
857
+ for i in range(len(hids)):
858
+ cat = torch.cat([mems[i], hids[i]], dim=0)
859
+ new_mems.append(cat[beg_idx:end_idx].detach())
860
+
861
+ return new_mems
862
+
863
+ @add_start_docstrings_to_model_forward(TRANSFO_XL_INPUTS_DOCSTRING)
864
+ @add_code_sample_docstrings(
865
+ checkpoint=_CHECKPOINT_FOR_DOC,
866
+ output_type=TransfoXLModelOutput,
867
+ config_class=_CONFIG_FOR_DOC,
868
+ )
869
+ def forward(
870
+ self,
871
+ input_ids: Optional[torch.LongTensor] = None,
872
+ mems: Optional[List[torch.FloatTensor]] = None,
873
+ head_mask: Optional[torch.FloatTensor] = None,
874
+ inputs_embeds: Optional[torch.FloatTensor] = None,
875
+ output_attentions: Optional[bool] = None,
876
+ output_hidden_states: Optional[bool] = None,
877
+ return_dict: Optional[bool] = None,
878
+ ) -> Union[Tuple, TransfoXLModelOutput]:
879
+ output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
880
+ output_hidden_states = (
881
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
882
+ )
883
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
884
+
885
+ # the original code for Transformer-XL used shapes [len, bsz] but we want a unified interface in the library
886
+ # so we transpose here from shape [bsz, len] to shape [len, bsz]
887
+ if input_ids is not None and inputs_embeds is not None:
888
+ raise ValueError("You cannot specify both input_ids and inputs_embeds at the same time")
889
+ elif input_ids is not None:
890
+ input_ids = input_ids.transpose(0, 1).contiguous()
891
+ qlen, bsz = input_ids.size()
892
+ elif inputs_embeds is not None:
893
+ inputs_embeds = inputs_embeds.transpose(0, 1).contiguous()
894
+ qlen, bsz = inputs_embeds.shape[0], inputs_embeds.shape[1]
895
+ else:
896
+ raise ValueError("You have to specify either input_ids or inputs_embeds")
897
+
898
+ if mems is None:
899
+ mems = self.init_mems(bsz)
900
+
901
+ # Prepare head mask if needed
902
+ # 1.0 in head_mask indicate we keep the head
903
+ # attention_probs has shape bsz x n_heads x N x N
904
+ # input head_mask has shape [num_heads] or [num_hidden_layers x num_heads] (a head_mask for each layer)
905
+ # and head_mask is converted to shape [num_hidden_layers x qlen x klen x bsz x n_head]
906
+ if head_mask is not None:
907
+ if head_mask.dim() == 1:
908
+ head_mask = head_mask.unsqueeze(0).unsqueeze(0).unsqueeze(0).unsqueeze(0)
909
+ head_mask = head_mask.expand(self.n_layer, -1, -1, -1, -1)
910
+ elif head_mask.dim() == 2:
911
+ head_mask = head_mask.unsqueeze(1).unsqueeze(1).unsqueeze(1)
912
+ head_mask = head_mask.to(
913
+ dtype=next(self.parameters()).dtype
914
+ ) # switch to float if need + fp16 compatibility
915
+ else:
916
+ head_mask = [None] * self.n_layer
917
+
918
+ if inputs_embeds is not None:
919
+ word_emb = inputs_embeds
920
+ else:
921
+ word_emb = self.word_emb(input_ids)
922
+
923
+ mlen = mems[0].size(0) if mems is not None else 0
924
+ klen = mlen + qlen
925
+ if self.same_length:
926
+ all_ones = word_emb.new_ones((qlen, klen), dtype=torch.bool)
927
+ mask_len = klen - self.mem_len
928
+ if mask_len > 0:
929
+ mask_shift_len = qlen - mask_len
930
+ else:
931
+ mask_shift_len = qlen
932
+ dec_attn_mask = (torch.triu(all_ones, 1 + mlen) + torch.tril(all_ones, -mask_shift_len))[:, :, None] # -1
933
+ else:
934
+ dec_attn_mask = torch.triu(word_emb.new_ones((qlen, klen), dtype=torch.bool), diagonal=1 + mlen)[
935
+ :, :, None
936
+ ]
937
+
938
+ hids = []
939
+ attentions = [] if output_attentions else None
940
+ if self.attn_type == 0: # default
941
+ pos_seq = torch.arange(klen - 1, -1, -1.0, device=word_emb.device, dtype=torch.int64).type_as(
942
+ dtype=word_emb.dtype
943
+ )
944
+ if self.clamp_len > 0:
945
+ pos_seq.clamp_(max=self.clamp_len)
946
+ pos_emb = self.pos_emb(pos_seq)
947
+
948
+ core_out = self.drop(word_emb)
949
+ pos_emb = self.drop(pos_emb)
950
+
951
+ for i, layer in enumerate(self.layers):
952
+ hids.append(core_out)
953
+ mems_i = None if mems is None else mems[i]
954
+ layer_outputs = layer(
955
+ core_out,
956
+ pos_emb,
957
+ dec_attn_mask=dec_attn_mask,
958
+ mems=mems_i,
959
+ head_mask=head_mask[i],
960
+ output_attentions=output_attentions,
961
+ )
962
+ core_out = layer_outputs[0]
963
+ if output_attentions:
964
+ attentions.append(layer_outputs[1])
965
+ else: # learnable embeddings and absolute embeddings
966
+ raise NotImplementedError # Removed these to avoid maintaining dead code - They are not used in our pretrained checkpoint
967
+
968
+ core_out = self.drop(core_out)
969
+
970
+ new_mems = self._update_mems(hids, mems, mlen, qlen)
971
+
972
+ if output_hidden_states:
973
+ # Add last layer and transpose to library standard shape [bsz, len, hidden_dim]
974
+ hids.append(core_out)
975
+ hids = tuple(t.transpose(0, 1).contiguous() for t in hids)
976
+ else:
977
+ hids = None
978
+ if output_attentions:
979
+ # Transpose to library standard shape [bsz, n_heads, query_seq_len, key_seq_len]
980
+ attentions = tuple(t.permute(2, 3, 0, 1).contiguous() for t in attentions)
981
+ # We transpose back here to shape [bsz, len, hidden_dim]
982
+ core_out = core_out.transpose(0, 1).contiguous()
983
+
984
+ if not return_dict:
985
+ return tuple(v for v in [core_out, new_mems, hids, attentions] if v is not None)
986
+
987
+ return TransfoXLModelOutput(
988
+ last_hidden_state=core_out,
989
+ mems=new_mems,
990
+ hidden_states=hids,
991
+ attentions=attentions,
992
+ )
993
+
994
+
995
+ @add_start_docstrings(
996
+ """
997
+ The Transformer-XL Model with a language modeling head on top (adaptive softmax with weights tied to the adaptive
998
+ input embeddings)
999
+ """,
1000
+ TRANSFO_XL_START_DOCSTRING,
1001
+ )
1002
+ class TransfoXLLMHeadModel(TransfoXLPreTrainedModel):
1003
+ _tied_weights_keys = [r"crit\.out_projs\.\d+", r"crit\.out_layers\.\d+\.weight"]
1004
+
1005
+ def __init__(self, config):
1006
+ super().__init__(config)
1007
+ self.transformer = TransfoXLModel(config)
1008
+ self.sample_softmax = config.sample_softmax
1009
+ self.trainer_compatible = getattr(config, "trainer_compatible", False)
1010
+
1011
+ if not self.trainer_compatible:
1012
+ warnings.warn(
1013
+ "The output of TransfoXL will be updated in v5 to support a single loss as first argument. In order "
1014
+ "to use that updated output, please specify `trainer_compatible=True` as your configuration"
1015
+ " attribute.",
1016
+ DeprecationWarning,
1017
+ )
1018
+
1019
+ assert self.sample_softmax <= 0, (
1020
+ "Sampling from the softmax is not implemented yet. Please look at issue: #3310:"
1021
+ " https://github.com/huggingface/transformers/issues/3310"
1022
+ )
1023
+
1024
+ self.crit = ProjectedAdaptiveLogSoftmax(
1025
+ config.vocab_size, config.d_embed, config.d_model, config.cutoffs, div_val=config.div_val
1026
+ )
1027
+
1028
+ # Initialize weights and apply final processing
1029
+ self.post_init()
1030
+
1031
+ def tie_weights(self):
1032
+ """
1033
+ Run this to be sure output and input (adaptive) softmax weights are tied
1034
+ """
1035
+
1036
+ if self.config.tie_word_embeddings:
1037
+ for i in range(len(self.crit.out_layers)):
1038
+ self._tie_or_clone_weights(self.crit.out_layers[i], self.transformer.word_emb.emb_layers[i])
1039
+ if self.config.tie_projs:
1040
+ for i, tie_proj in enumerate(self.config.tie_projs):
1041
+ if tie_proj and self.config.div_val == 1 and self.config.d_model != self.config.d_embed:
1042
+ if self.config.torchscript:
1043
+ self.crit.out_projs[i] = nn.Parameter(self.transformer.word_emb.emb_projs[0].clone())
1044
+ else:
1045
+ self.crit.out_projs[i] = self.transformer.word_emb.emb_projs[0]
1046
+ elif tie_proj and self.config.div_val != 1:
1047
+ if self.config.torchscript:
1048
+ self.crit.out_projs[i] = nn.Parameter(self.transformer.word_emb.emb_projs[i].clone())
1049
+ else:
1050
+ self.crit.out_projs[i] = self.transformer.word_emb.emb_projs[i]
1051
+
1052
+ def reset_memory_length(self, mem_len):
1053
+ self.transformer.reset_memory_length(mem_len)
1054
+
1055
+ def init_mems(self, bsz):
1056
+ return self.transformer.init_mems(bsz)
1057
+
1058
+ @add_start_docstrings_to_model_forward(TRANSFO_XL_INPUTS_DOCSTRING)
1059
+ @add_code_sample_docstrings(
1060
+ checkpoint=_CHECKPOINT_FOR_DOC,
1061
+ output_type=TransfoXLLMHeadModelOutput,
1062
+ config_class=_CONFIG_FOR_DOC,
1063
+ )
1064
+ def forward(
1065
+ self,
1066
+ input_ids: Optional[torch.LongTensor] = None,
1067
+ mems: Optional[List[torch.FloatTensor]] = None,
1068
+ head_mask: Optional[torch.FloatTensor] = None,
1069
+ inputs_embeds: Optional[torch.FloatTensor] = None,
1070
+ labels: Optional[torch.LongTensor] = None,
1071
+ output_attentions: Optional[bool] = None,
1072
+ output_hidden_states: Optional[bool] = None,
1073
+ return_dict: Optional[bool] = None,
1074
+ ) -> Union[Tuple, TransfoXLLMHeadModelOutput]:
1075
+ r"""
1076
+ labels (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*):
1077
+ Labels for language modeling. Note that the labels **are shifted** inside the model, i.e. you can set
1078
+ `labels = input_ids` Indices are selected in `[-100, 0, ..., config.vocab_size]` All labels set to `-100`
1079
+ are ignored (masked), the loss is only computed for labels in `[0, ..., config.vocab_size]`
1080
+ """
1081
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
1082
+ if input_ids is not None:
1083
+ bsz, tgt_len = input_ids.size(0), input_ids.size(1)
1084
+ elif inputs_embeds is not None:
1085
+ bsz, tgt_len = inputs_embeds.size(0), inputs_embeds.size(1)
1086
+ else:
1087
+ raise ValueError("You have to specify either input_ids or inputs_embeds")
1088
+
1089
+ transformer_outputs = self.transformer(
1090
+ input_ids,
1091
+ mems=mems,
1092
+ head_mask=head_mask,
1093
+ inputs_embeds=inputs_embeds,
1094
+ output_attentions=output_attentions,
1095
+ output_hidden_states=output_hidden_states,
1096
+ return_dict=return_dict,
1097
+ )
1098
+
1099
+ last_hidden = transformer_outputs[0]
1100
+ pred_hid = last_hidden[:, -tgt_len:]
1101
+
1102
+ if labels is not None:
1103
+ # Prevents all labels being -100 and throwing an error
1104
+ # when backwarding the loss
1105
+ miss_valid_label = labels[0, 1:].sum() == (labels.size(1) - 1) * -100
1106
+ if miss_valid_label:
1107
+ # Sets an <EOS> token, just to prevent loss from being NaN
1108
+ labels[0, 1] = self.config.eos_token_id
1109
+
1110
+ softmax_output = self.crit(pred_hid, labels)
1111
+ prediction_scores = softmax_output.view(bsz, tgt_len, -1) if labels is None else ()
1112
+
1113
+ if labels is not None:
1114
+ losses = softmax_output.view(bsz, tgt_len - 1)
1115
+ # Avoids from incorporating padding (-100) tokens into loss value
1116
+ loss = losses[losses != 0].mean()
1117
+ else:
1118
+ losses, loss = None, None
1119
+
1120
+ if not return_dict:
1121
+ if self.trainer_compatible:
1122
+ output = (prediction_scores, losses) if losses is not None else (prediction_scores,)
1123
+ output += transformer_outputs[1:]
1124
+ return ((loss,) + output) if loss is not None else output
1125
+ else:
1126
+ output = (prediction_scores, *transformer_outputs[1:])
1127
+ output = ((losses,) + output) if losses is not None else output
1128
+ return (output + (loss,)) if loss is not None else output
1129
+
1130
+ return TransfoXLLMHeadModelOutput(
1131
+ loss=loss,
1132
+ prediction_scores=prediction_scores,
1133
+ losses=losses,
1134
+ mems=transformer_outputs.mems,
1135
+ hidden_states=transformer_outputs.hidden_states,
1136
+ attentions=transformer_outputs.attentions,
1137
+ )
1138
+
1139
+ def get_output_embeddings(self):
1140
+ """Double-check if you are using adaptive softmax."""
1141
+ if self.sample_softmax > 0:
1142
+ return self.out_layer
1143
+ else:
1144
+ return self.crit.out_layers[-1]
1145
+
1146
+ def prepare_inputs_for_generation(self, input_ids, past_key_values=None, **model_kwargs):
1147
+ inputs = {}
1148
+
1149
+ # if past is defined in model kwargs then use it for faster decoding
1150
+ if past_key_values:
1151
+ inputs["mems"] = past_key_values
1152
+ inputs["input_ids"] = input_ids[:, -1].unsqueeze(-1)
1153
+ else:
1154
+ inputs["input_ids"] = input_ids
1155
+
1156
+ return inputs
1157
+
1158
+ def _resize_cutoffs(self, new_num_tokens, new_emb_size, new_embedding_shapes, layer):
1159
+ new_cutoffs = super()._resize_cutoffs(new_num_tokens, new_emb_size, new_embedding_shapes, layer)
1160
+
1161
+ self.crit.cutoffs = new_cutoffs
1162
+ self.crit.cutoff_ends = [0] + new_cutoffs
1163
+ self.crit.n_token = new_num_tokens
1164
+
1165
+ @staticmethod
1166
+ def _reorder_cache(mems: List[torch.Tensor], beam_idx: torch.Tensor) -> List[torch.Tensor]:
1167
+ """
1168
+ This function is used to re-order the `mems` cache if [`~PreTrainedModel.beam_search`] or
1169
+ [`~PreTrainedModel.beam_sample`] is called. This is required to match `mems` with the correct beam_idx at every
1170
+ generation step.
1171
+ """
1172
+ return [layer_past.index_select(1, beam_idx.to(layer_past.device)) for layer_past in mems]
1173
+
1174
+
1175
+ @add_start_docstrings(
1176
+ """
1177
+ The Transformer-XL Model transformer with a sequence classification head on top (linear layer).
1178
+
1179
+ [`TransfoXLForSequenceClassification`] uses the last token in order to do the classification, as other causal
1180
+ models (e.g. GPT-1) do.
1181
+
1182
+ Since it does classification on the last token, it requires to know the position of the last token. If a
1183
+ `pad_token_id` is defined in the configuration, it finds the last token that is not a padding token in each row. If
1184
+ no `pad_token_id` is defined, it simply takes the last value in each row of the batch. Since it cannot guess the
1185
+ padding tokens when `inputs_embeds` are passed instead of `input_ids`, it does the same (take the last value in
1186
+ each row of the batch).
1187
+ """,
1188
+ TRANSFO_XL_START_DOCSTRING,
1189
+ )
1190
+ class TransfoXLForSequenceClassification(TransfoXLPreTrainedModel):
1191
+ def __init__(self, config):
1192
+ super().__init__(config)
1193
+ self.num_labels = config.num_labels
1194
+ self.transformer = TransfoXLModel(config)
1195
+ self.score = nn.Linear(config.d_embed, self.num_labels, bias=False)
1196
+ # Initialize weights and apply final processing
1197
+ self.post_init()
1198
+
1199
+ @add_start_docstrings_to_model_forward(TRANSFO_XL_INPUTS_DOCSTRING)
1200
+ @add_code_sample_docstrings(
1201
+ checkpoint=_CHECKPOINT_FOR_DOC,
1202
+ output_type=TransfoXLSequenceClassifierOutputWithPast,
1203
+ config_class=_CONFIG_FOR_DOC,
1204
+ )
1205
+ def forward(
1206
+ self,
1207
+ input_ids: Optional[torch.LongTensor] = None,
1208
+ mems: Optional[List[torch.FloatTensor]] = None,
1209
+ head_mask: Optional[torch.FloatTensor] = None,
1210
+ inputs_embeds: Optional[torch.FloatTensor] = None,
1211
+ labels: Optional[torch.LongTensor] = None,
1212
+ output_attentions: Optional[bool] = None,
1213
+ output_hidden_states: Optional[bool] = None,
1214
+ return_dict: Optional[bool] = None,
1215
+ ) -> Union[Tuple, TransfoXLSequenceClassifierOutputWithPast]:
1216
+ r"""
1217
+ labels (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
1218
+ Labels for computing the sequence classification/regression loss. Indices should be in `[0, ...,
1219
+ config.num_labels - 1]`. If `config.num_labels == 1` a regression loss is computed (Mean-Square loss), If
1220
+ `config.num_labels > 1` a classification loss is computed (Cross-Entropy).
1221
+ """
1222
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
1223
+
1224
+ transformer_outputs = self.transformer(
1225
+ input_ids,
1226
+ mems=mems,
1227
+ head_mask=head_mask,
1228
+ inputs_embeds=inputs_embeds,
1229
+ output_attentions=output_attentions,
1230
+ output_hidden_states=output_hidden_states,
1231
+ return_dict=return_dict,
1232
+ )
1233
+ hidden_states = transformer_outputs[0]
1234
+ logits = self.score(hidden_states)
1235
+
1236
+ if input_ids is not None:
1237
+ batch_size, sequence_length = input_ids.shape[:2]
1238
+ else:
1239
+ batch_size, sequence_length = inputs_embeds.shape[:2]
1240
+
1241
+ assert (
1242
+ self.config.pad_token_id is not None or batch_size == 1
1243
+ ), "Cannot handle batch sizes > 1 if no padding token is defined."
1244
+ if self.config.pad_token_id is None:
1245
+ sequence_lengths = -1
1246
+ else:
1247
+ if input_ids is not None:
1248
+ # if no pad token found, use modulo instead of reverse indexing for ONNX compatibility
1249
+ sequence_lengths = torch.eq(input_ids, self.config.pad_token_id).int().argmax(-1) - 1
1250
+ sequence_lengths = sequence_lengths % input_ids.shape[-1]
1251
+ sequence_lengths = sequence_lengths.to(logits.device)
1252
+ else:
1253
+ sequence_lengths = -1
1254
+ logger.warning_once(
1255
+ f"{self.__class__.__name__} will not detect padding tokens in `inputs_embeds`. Results may be "
1256
+ "unexpected if using padding tokens in conjunction with `inputs_embeds.`"
1257
+ )
1258
+
1259
+ pooled_logits = logits[range(batch_size), sequence_lengths]
1260
+
1261
+ loss = None
1262
+ if labels is not None:
1263
+ if self.config.problem_type is None:
1264
+ if self.num_labels == 1:
1265
+ self.config.problem_type = "regression"
1266
+ elif self.num_labels > 1 and (labels.dtype == torch.long or labels.dtype == torch.int):
1267
+ self.config.problem_type = "single_label_classification"
1268
+ else:
1269
+ self.config.problem_type = "multi_label_classification"
1270
+
1271
+ if self.config.problem_type == "regression":
1272
+ loss_fct = MSELoss()
1273
+ if self.num_labels == 1:
1274
+ loss = loss_fct(pooled_logits.squeeze(), labels.squeeze())
1275
+ else:
1276
+ loss = loss_fct(pooled_logits, labels)
1277
+ elif self.config.problem_type == "single_label_classification":
1278
+ loss_fct = CrossEntropyLoss()
1279
+ loss = loss_fct(pooled_logits.view(-1, self.num_labels), labels.view(-1))
1280
+ elif self.config.problem_type == "multi_label_classification":
1281
+ loss_fct = BCEWithLogitsLoss()
1282
+ loss = loss_fct(pooled_logits, labels)
1283
+ if not return_dict:
1284
+ output = (pooled_logits,) + transformer_outputs[1:]
1285
+ return ((loss,) + output) if loss is not None else output
1286
+
1287
+ return TransfoXLSequenceClassifierOutputWithPast(
1288
+ loss=loss,
1289
+ logits=pooled_logits,
1290
+ mems=transformer_outputs.mems,
1291
+ hidden_states=transformer_outputs.hidden_states,
1292
+ attentions=transformer_outputs.attentions,
1293
+ )
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/transfo_xl/modeling_transfo_xl_utilities.py ADDED
@@ -0,0 +1,251 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2018 Google AI, Google Brain and Carnegie Mellon University Authors and the 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
+ """
17
+ Utilities for PyTorch Transformer XL model. Directly adapted from https://github.com/kimiyoung/transformer-xl.
18
+ """
19
+
20
+ import torch
21
+ from torch import nn
22
+
23
+
24
+ # CUDA_MAJOR = int(torch.version.cuda.split('.')[0])
25
+ # CUDA_MINOR = int(torch.version.cuda.split('.')[1])
26
+
27
+
28
+ class ProjectedAdaptiveLogSoftmax(nn.Module):
29
+ def __init__(self, n_token, d_embed, d_proj, cutoffs, div_val=1, keep_order=False):
30
+ super().__init__()
31
+
32
+ self.n_token = n_token
33
+ self.d_embed = d_embed
34
+ self.d_proj = d_proj
35
+
36
+ self.cutoffs = cutoffs + [n_token]
37
+ self.cutoff_ends = [0] + self.cutoffs
38
+ self.div_val = div_val
39
+
40
+ self.shortlist_size = self.cutoffs[0]
41
+ self.n_clusters = len(self.cutoffs) - 1
42
+ self.head_size = self.shortlist_size + self.n_clusters
43
+
44
+ if self.n_clusters > 0:
45
+ self.cluster_weight = nn.Parameter(torch.zeros(self.n_clusters, self.d_embed))
46
+ self.cluster_bias = nn.Parameter(torch.zeros(self.n_clusters))
47
+
48
+ self.out_layers = nn.ModuleList()
49
+ self.out_projs = nn.ParameterList()
50
+
51
+ if div_val == 1:
52
+ for i in range(len(self.cutoffs)):
53
+ if d_proj != d_embed:
54
+ self.out_projs.append(nn.Parameter(torch.FloatTensor(d_proj, d_embed)))
55
+ else:
56
+ self.out_projs.append(None)
57
+
58
+ self.out_layers.append(nn.Linear(d_embed, n_token))
59
+ else:
60
+ for i in range(len(self.cutoffs)):
61
+ l_idx, r_idx = self.cutoff_ends[i], self.cutoff_ends[i + 1]
62
+ d_emb_i = d_embed // (div_val**i)
63
+
64
+ self.out_projs.append(nn.Parameter(torch.FloatTensor(d_proj, d_emb_i)))
65
+
66
+ self.out_layers.append(nn.Linear(d_emb_i, r_idx - l_idx))
67
+
68
+ self.keep_order = keep_order
69
+
70
+ def _compute_logit(self, hidden, weight, bias, proj):
71
+ if proj is None:
72
+ logit = nn.functional.linear(hidden, weight, bias=bias)
73
+ else:
74
+ # if CUDA_MAJOR <= 9 and CUDA_MINOR <= 1:
75
+ proj_hid = nn.functional.linear(hidden, proj.t().contiguous())
76
+ logit = nn.functional.linear(proj_hid, weight, bias=bias)
77
+ # else:
78
+ # logit = torch.einsum('bd,de,ev->bv', (hidden, proj, weight.t()))
79
+ # if bias is not None:
80
+ # logit = logit + bias
81
+
82
+ return logit
83
+
84
+ def forward(self, hidden, labels=None, keep_order=False):
85
+ """
86
+ Params:
87
+ hidden :: [len*bsz x d_proj]
88
+ labels :: [len*bsz]
89
+
90
+ Return:
91
+ if labels is None: out :: [len*bsz x n_tokens] log probabilities of tokens over the vocabulary else: out ::
92
+ [(len-1)*bsz] Negative log likelihood. We could replace this implementation by the native PyTorch one if
93
+ theirs had an option to set bias on all clusters in the native one. here:
94
+ https://github.com/pytorch/pytorch/blob/dbe6a7a9ff1a364a8706bf5df58a1ca96d2fd9da/torch/nn/modules/adaptive.py#L138
95
+ """
96
+
97
+ if labels is not None:
98
+ # Shift so that tokens < n predict n
99
+ hidden = hidden[..., :-1, :].contiguous()
100
+ labels = labels[..., 1:].contiguous()
101
+ hidden = hidden.view(-1, hidden.size(-1))
102
+ labels = labels.view(-1)
103
+ if hidden.size(0) != labels.size(0):
104
+ raise RuntimeError("Input and labels should have the same size in the batch dimension.")
105
+ else:
106
+ hidden = hidden.view(-1, hidden.size(-1))
107
+
108
+ if self.n_clusters == 0:
109
+ logit = self._compute_logit(hidden, self.out_layers[0].weight, self.out_layers[0].bias, self.out_projs[0])
110
+ if labels is not None:
111
+ mask = labels != -100
112
+ out = torch.zeros_like(labels, dtype=hidden.dtype, device=hidden.device)
113
+ out[mask] = (
114
+ -nn.functional.log_softmax(logit, dim=-1)[mask].gather(1, labels[mask].unsqueeze(1)).squeeze(1)
115
+ )
116
+ else:
117
+ out = nn.functional.log_softmax(logit, dim=-1)
118
+ else:
119
+ # construct weights and biases
120
+ weights, biases = [], []
121
+ for i in range(len(self.cutoffs)):
122
+ if self.div_val == 1:
123
+ l_idx, r_idx = self.cutoff_ends[i], self.cutoff_ends[i + 1]
124
+ weight_i = self.out_layers[0].weight[l_idx:r_idx]
125
+ bias_i = self.out_layers[0].bias[l_idx:r_idx]
126
+ else:
127
+ weight_i = self.out_layers[i].weight
128
+ bias_i = self.out_layers[i].bias
129
+
130
+ if i == 0:
131
+ weight_i = torch.cat([weight_i, self.cluster_weight], dim=0)
132
+ bias_i = torch.cat([bias_i, self.cluster_bias], dim=0)
133
+
134
+ weights.append(weight_i)
135
+ biases.append(bias_i)
136
+
137
+ head_weight, head_bias, head_proj = weights[0], biases[0], self.out_projs[0]
138
+
139
+ head_logit = self._compute_logit(hidden, head_weight, head_bias, head_proj)
140
+ head_logprob = nn.functional.log_softmax(head_logit, dim=1)
141
+
142
+ if labels is None:
143
+ out = hidden.new_empty((head_logit.size(0), self.n_token))
144
+ else:
145
+ out = torch.zeros_like(labels, dtype=hidden.dtype, device=hidden.device)
146
+
147
+ offset = 0
148
+ cutoff_values = [0] + self.cutoffs
149
+ for i in range(len(cutoff_values) - 1):
150
+ l_idx, r_idx = cutoff_values[i], cutoff_values[i + 1]
151
+
152
+ if labels is not None:
153
+ mask_i = (labels >= l_idx) & (labels < r_idx)
154
+ indices_i = mask_i.nonzero().squeeze()
155
+
156
+ if indices_i.numel() == 0:
157
+ continue
158
+
159
+ target_i = labels.index_select(0, indices_i) - l_idx
160
+ head_logprob_i = head_logprob.index_select(0, indices_i)
161
+ hidden_i = hidden.index_select(0, indices_i)
162
+ else:
163
+ hidden_i = hidden
164
+
165
+ if i == 0:
166
+ if labels is not None:
167
+ logprob_i = head_logprob_i.gather(1, target_i[:, None]).squeeze(1)
168
+ else:
169
+ out[:, : self.cutoffs[0]] = head_logprob[:, : self.cutoffs[0]]
170
+ else:
171
+ weight_i, bias_i, proj_i = weights[i], biases[i], self.out_projs[i]
172
+
173
+ tail_logit_i = self._compute_logit(hidden_i, weight_i, bias_i, proj_i)
174
+ tail_logprob_i = nn.functional.log_softmax(tail_logit_i, dim=1)
175
+ cluster_prob_idx = self.cutoffs[0] + i - 1 # No probability for the head cluster
176
+ if labels is not None:
177
+ logprob_i = head_logprob_i[:, cluster_prob_idx] + tail_logprob_i.gather(
178
+ 1, target_i[:, None]
179
+ ).squeeze(1)
180
+ else:
181
+ logprob_i = head_logprob[:, cluster_prob_idx, None] + tail_logprob_i
182
+ out[:, l_idx:r_idx] = logprob_i
183
+
184
+ if labels is not None:
185
+ if (hasattr(self, "keep_order") and self.keep_order) or keep_order:
186
+ out.index_copy_(0, indices_i, -logprob_i)
187
+ else:
188
+ out[offset : offset + logprob_i.size(0)].copy_(-logprob_i)
189
+ offset += logprob_i.size(0)
190
+
191
+ return out
192
+
193
+ def log_prob(self, hidden):
194
+ r"""
195
+ Computes log probabilities for all \\(n\_classes\\) From:
196
+ https://github.com/pytorch/pytorch/blob/master/torch/nn/modules/adaptive.p
197
+
198
+ Args:
199
+ hidden (Tensor): a minibatch of example
200
+
201
+ Returns:
202
+ log-probabilities of for each class \\(c\\) in range \\(0 <= c <= n\_classes\\), where \\(n\_classes\\) is
203
+ a parameter passed to `AdaptiveLogSoftmaxWithLoss` constructor. Shape:
204
+
205
+ - Input: \\((N, in\_features)\\)
206
+ - Output: \\((N, n\_classes)\\)
207
+ """
208
+ if self.n_clusters == 0:
209
+ logit = self._compute_logit(hidden, self.out_layers[0].weight, self.out_layers[0].bias, self.out_projs[0])
210
+ return nn.functional.log_softmax(logit, dim=-1)
211
+ else:
212
+ # construct weights and biases
213
+ weights, biases = [], []
214
+ for i in range(len(self.cutoffs)):
215
+ if self.div_val == 1:
216
+ l_idx, r_idx = self.cutoff_ends[i], self.cutoff_ends[i + 1]
217
+ weight_i = self.out_layers[0].weight[l_idx:r_idx]
218
+ bias_i = self.out_layers[0].bias[l_idx:r_idx]
219
+ else:
220
+ weight_i = self.out_layers[i].weight
221
+ bias_i = self.out_layers[i].bias
222
+
223
+ if i == 0:
224
+ weight_i = torch.cat([weight_i, self.cluster_weight], dim=0)
225
+ bias_i = torch.cat([bias_i, self.cluster_bias], dim=0)
226
+
227
+ weights.append(weight_i)
228
+ biases.append(bias_i)
229
+
230
+ head_weight, head_bias, head_proj = weights[0], biases[0], self.out_projs[0]
231
+ head_logit = self._compute_logit(hidden, head_weight, head_bias, head_proj)
232
+
233
+ out = hidden.new_empty((head_logit.size(0), self.n_token))
234
+ head_logprob = nn.functional.log_softmax(head_logit, dim=1)
235
+
236
+ cutoff_values = [0] + self.cutoffs
237
+ for i in range(len(cutoff_values) - 1):
238
+ start_idx, stop_idx = cutoff_values[i], cutoff_values[i + 1]
239
+
240
+ if i == 0:
241
+ out[:, : self.cutoffs[0]] = head_logprob[:, : self.cutoffs[0]]
242
+ else:
243
+ weight_i, bias_i, proj_i = weights[i], biases[i], self.out_projs[i]
244
+
245
+ tail_logit_i = self._compute_logit(hidden, weight_i, bias_i, proj_i)
246
+ tail_logprob_i = nn.functional.log_softmax(tail_logit_i, dim=1)
247
+
248
+ logprob_i = head_logprob[:, -i] + tail_logprob_i
249
+ out[:, start_idx, stop_idx] = logprob_i
250
+
251
+ return out
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/transfo_xl/tokenization_transfo_xl.py ADDED
@@ -0,0 +1,818 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2018 Google AI, Google Brain and Carnegie Mellon University Authors and the 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
+ """
17
+ Tokenization classes for Transformer XL model. Adapted from https://github.com/kimiyoung/transformer-xl.
18
+ """
19
+
20
+ import glob
21
+ import os
22
+ import pickle
23
+ import re
24
+ from collections import Counter, OrderedDict
25
+ from typing import List, Optional, Tuple
26
+
27
+ import numpy as np
28
+
29
+ from ....tokenization_utils import PreTrainedTokenizer
30
+ from ....utils import (
31
+ cached_file,
32
+ is_sacremoses_available,
33
+ is_torch_available,
34
+ logging,
35
+ requires_backends,
36
+ strtobool,
37
+ torch_only_method,
38
+ )
39
+
40
+
41
+ if is_sacremoses_available():
42
+ import sacremoses as sm
43
+
44
+
45
+ if is_torch_available():
46
+ import torch
47
+
48
+
49
+ logger = logging.get_logger(__name__)
50
+
51
+ VOCAB_FILES_NAMES = {
52
+ "pretrained_vocab_file": "vocab.pkl",
53
+ "pretrained_vocab_file_torch": "vocab.bin",
54
+ "vocab_file": "vocab.txt",
55
+ }
56
+
57
+
58
+ PRETRAINED_CORPUS_ARCHIVE_MAP = {
59
+ "transfo-xl/transfo-xl-wt103": "https://huggingface.co/transfo-xl/transfo-xl-wt103/resolve/main/corpus.bin",
60
+ }
61
+ CORPUS_NAME = "corpus.bin"
62
+
63
+ MATCH_NUMBERS = r"(?<=\d)[,.](?=\d)", r" @\g<0>@ "
64
+ DETOKENIZE_NUMBERS = [(r" @\,@ ", r","), (r" @\.@ ", r".")]
65
+
66
+
67
+ def tokenize_numbers(text_array: List[str]) -> List[str]:
68
+ """
69
+ Splits large comma-separated numbers and floating point values. This is done by replacing commas with ' @,@ ' and
70
+ dots with ' @.@ '.
71
+
72
+ Args:
73
+ text_array: An already tokenized text as list.
74
+
75
+ Returns:
76
+ A list of strings with tokenized numbers.
77
+
78
+ Example:
79
+
80
+ ```python
81
+ >>> tokenize_numbers(["$", "5,000", "1.73", "m"])
82
+ ['$', '5', '@,@', '000', '1', '@.@', '73', 'm']
83
+ ```"""
84
+ tokenized = []
85
+ for i in range(len(text_array)):
86
+ reg, sub = MATCH_NUMBERS
87
+ replaced = re.sub(reg, sub, text_array[i]).split()
88
+ tokenized.extend(replaced)
89
+
90
+ return tokenized
91
+
92
+
93
+ def detokenize_numbers(text: str) -> str:
94
+ """
95
+ Inverts the operation of *tokenize_numbers*. This is replacing ' @,@ ' and ' @.@' by ',' and '.'.
96
+
97
+ Args:
98
+ text: A string where the number should be detokenized.
99
+
100
+ Returns:
101
+ A detokenized string.
102
+
103
+ Example:
104
+
105
+ ```python
106
+ >>> detokenize_numbers("$ 5 @,@ 000 1 @.@ 73 m")
107
+ '$ 5,000 1.73 m'
108
+ ```"""
109
+ for reg, sub in DETOKENIZE_NUMBERS:
110
+ text = re.sub(reg, sub, text)
111
+ return text
112
+
113
+
114
+ class TransfoXLTokenizer(PreTrainedTokenizer):
115
+ """
116
+ Construct a Transformer-XL tokenizer adapted from Vocab class in [the original
117
+ code](https://github.com/kimiyoung/transformer-xl). The Transformer-XL tokenizer is a word-level tokenizer (no
118
+ sub-word tokenization).
119
+
120
+ This tokenizer inherits from [`PreTrainedTokenizer`] which contains most of the main methods. Users should refer to
121
+ this superclass for more information regarding those methods.
122
+
123
+ Args:
124
+ special (`List[str]`, *optional*):
125
+ A list of special tokens (to be treated by the original implementation of this tokenizer).
126
+ min_freq (`int`, *optional*, defaults to 0):
127
+ The minimum number of times a token has to be present in order to be kept in the vocabulary (otherwise it
128
+ will be mapped to `unk_token`).
129
+ max_size (`int`, *optional*):
130
+ The maximum size of the vocabulary. If left unset, it will default to the size of the vocabulary found
131
+ after excluding the tokens according to the `min_freq` rule.
132
+ lower_case (`bool`, *optional*, defaults to `False`):
133
+ Whether or not to lowercase the input when tokenizing.
134
+ delimiter (`str`, *optional*):
135
+ The delimiter used between tokens.
136
+ vocab_file (`str`, *optional*):
137
+ File containing the vocabulary (from the original implementation).
138
+ pretrained_vocab_file (`str`, *optional*):
139
+ File containing the vocabulary as saved with the `save_pretrained()` method.
140
+ never_split (`List[str]`, *optional*):
141
+ List of tokens that should never be split. If no list is specified, will simply use the existing special
142
+ tokens.
143
+ unk_token (`str`, *optional*, defaults to `"<unk>"`):
144
+ The unknown token. A token that is not in the vocabulary cannot be converted to an ID and is set to be this
145
+ token instead.
146
+ eos_token (`str`, *optional*, defaults to `"<eos>"`):
147
+ The end of sequence token.
148
+ additional_special_tokens (`List[str]`, *optional*, defaults to `['<formula>']`):
149
+ A list of additional special tokens (for the HuggingFace functionality).
150
+ language (`str`, *optional*, defaults to `"en"`):
151
+ The language of this tokenizer (used for mose preprocessing).
152
+ """
153
+
154
+ vocab_files_names = VOCAB_FILES_NAMES
155
+ model_input_names = ["input_ids"]
156
+
157
+ def __init__(
158
+ self,
159
+ special=None,
160
+ min_freq=0,
161
+ max_size=None,
162
+ lower_case=False,
163
+ delimiter=None,
164
+ vocab_file=None,
165
+ pretrained_vocab_file: str = None,
166
+ never_split=None,
167
+ unk_token="<unk>",
168
+ eos_token="<eos>",
169
+ additional_special_tokens=["<formula>"],
170
+ language="en",
171
+ **kwargs,
172
+ ):
173
+ logger.error(
174
+ "`TransfoXL` was deprecated due to security issues linked to `pickle.load` in `TransfoXLTokenizer`. "
175
+ "See more details on this model's documentation page: "
176
+ "`https://github.com/huggingface/transformers/blob/main/docs/source/en/model_doc/transfo-xl.md`."
177
+ )
178
+
179
+ requires_backends(self, "sacremoses")
180
+ if special is None:
181
+ special = []
182
+ self.counter = Counter()
183
+ self.special = special
184
+ self.min_freq = min_freq
185
+ self.max_size = max_size
186
+ self.lower_case = lower_case
187
+ self.delimiter = delimiter
188
+ self.vocab_file = vocab_file
189
+ self.punctuation_symbols = '!"#$%&()*+,-./\\:;<=>?@[\\]^_`{|}~'
190
+ self.punction_without_space_before_pattern = re.compile(rf"[^\s][{self.punctuation_symbols}]")
191
+ self.punctuation_with_space_around_pattern = self._compile_space_around_punctuation_pattern()
192
+ self.language = language
193
+ self.moses_punct_normalizer = sm.MosesPunctNormalizer(language)
194
+ self.moses_tokenizer = sm.MosesTokenizer(language)
195
+ self.moses_detokenizer = sm.MosesDetokenizer(language)
196
+ self.idx2sym = []
197
+ self.sym2idx = OrderedDict()
198
+ # This try... catch... is not beautiful but honestly this tokenizer was not made to be used
199
+ # in a library like ours, at all.
200
+ try:
201
+ vocab_dict = None
202
+ if pretrained_vocab_file is not None:
203
+ # Priority on pickle files (support PyTorch and TF)
204
+ if not strtobool(os.environ.get("TRUST_REMOTE_CODE", "False")):
205
+ raise ValueError(
206
+ "This part uses `pickle.load` which is insecure and will execute arbitrary code that is "
207
+ "potentially malicious. It's recommended to never unpickle data that could have come from an "
208
+ "untrusted source, or that could have been tampered with. If you already verified the pickle "
209
+ "data and decided to use it, you can set the environment variable "
210
+ "`TRUST_REMOTE_CODE` to `True` to allow it."
211
+ )
212
+ with open(pretrained_vocab_file, "rb") as f:
213
+ vocab_dict = pickle.load(f)
214
+
215
+ # Loading a torch-saved transfo-xl vocab dict with pickle results in an integer
216
+ # Entering this if statement means that we tried to load a torch-saved file with pickle, and we failed.
217
+ # We therefore load it with torch, if it's available.
218
+ if isinstance(vocab_dict, int):
219
+ if not is_torch_available():
220
+ raise ImportError(
221
+ "Not trying to load dict with PyTorch as you need to install pytorch to load "
222
+ "from a PyTorch pretrained vocabulary, "
223
+ "or activate it with environment variables USE_TORCH=1 and USE_TF=0."
224
+ )
225
+ vocab_dict = torch.load(pretrained_vocab_file, weights_only=True)
226
+
227
+ if vocab_dict is not None:
228
+ for key, value in vocab_dict.items():
229
+ if key not in self.__dict__ or key in ["sym2idx", "idx2sym"]:
230
+ self.__dict__[key] = value
231
+ elif vocab_file is not None:
232
+ self.build_vocab()
233
+
234
+ except Exception as e:
235
+ raise ValueError(
236
+ f"Unable to parse file {pretrained_vocab_file}. Unknown format. "
237
+ "If you tried to load a model saved through TransfoXLTokenizerFast, "
238
+ "please note they are not compatible."
239
+ ) from e
240
+
241
+ if vocab_file is not None:
242
+ self.build_vocab()
243
+
244
+ super().__init__(
245
+ special=special,
246
+ min_freq=min_freq,
247
+ max_size=max_size,
248
+ lower_case=lower_case,
249
+ delimiter=delimiter,
250
+ vocab_file=vocab_file,
251
+ pretrained_vocab_file=pretrained_vocab_file,
252
+ never_split=never_split,
253
+ unk_token=unk_token,
254
+ eos_token=eos_token,
255
+ additional_special_tokens=additional_special_tokens,
256
+ language=language,
257
+ **kwargs,
258
+ )
259
+
260
+ # these are not required to initialize the parent class as only used when tokenizing.
261
+ if never_split is None:
262
+ never_split = self.all_special_tokens
263
+ self.never_split = never_split
264
+
265
+ @property
266
+ def do_lower_case(self):
267
+ return self.lower_case
268
+
269
+ def _compile_space_around_punctuation_pattern(self):
270
+ look_ahead_for_special_token = f"(?=[{self.punctuation_symbols}])"
271
+ look_ahead_to_match_all_except_space = r"(?=[^\s])"
272
+ return re.compile(r"" + look_ahead_for_special_token + look_ahead_to_match_all_except_space)
273
+
274
+ def count_file(self, path, verbose=False, add_eos=False):
275
+ if verbose:
276
+ logger.info(f"counting file {path} ...")
277
+ assert os.path.exists(path), f"Input file {path} not found"
278
+
279
+ sents = []
280
+ with open(path, "r", encoding="utf-8") as f:
281
+ for idx, line in enumerate(f):
282
+ if verbose and idx > 0 and idx % 500000 == 0:
283
+ logger.info(f" line {idx}")
284
+ symbols = self.tokenize(line, add_eos=add_eos)
285
+ self.counter.update(symbols)
286
+ sents.append(symbols)
287
+
288
+ return sents
289
+
290
+ def count_sents(self, sents, verbose=False):
291
+ """
292
+ sents : a list of sentences, each a list of tokenized symbols
293
+ """
294
+ if verbose:
295
+ logger.info(f"counting {len(sents)} sents ...")
296
+ for idx, symbols in enumerate(sents):
297
+ if verbose and idx > 0 and idx % 500000 == 0:
298
+ logger.info(f" line {idx}")
299
+ self.counter.update(symbols)
300
+
301
+ def _build_from_file(self, vocab_file):
302
+ self.idx2sym = []
303
+ self.sym2idx = OrderedDict()
304
+
305
+ with open(vocab_file, "r", encoding="utf-8") as f:
306
+ for line in f:
307
+ symb = line.strip().split()[0]
308
+ self.add_symbol(symb)
309
+ if "<UNK>" in self.sym2idx:
310
+ self.unk_idx = self.sym2idx["<UNK>"]
311
+ elif "<unk>" in self.sym2idx:
312
+ self.unk_idx = self.sym2idx["<unk>"]
313
+ else:
314
+ raise ValueError("Token not in vocabulary and no <unk> token in vocabulary for replacement.")
315
+
316
+ def save_vocabulary(self, save_directory: str, filename_prefix: Optional[str] = None) -> Tuple[str]:
317
+ if os.path.isdir(save_directory):
318
+ vocab_file = os.path.join(
319
+ save_directory,
320
+ (filename_prefix + "-" if filename_prefix else "") + VOCAB_FILES_NAMES["pretrained_vocab_file"],
321
+ )
322
+ else:
323
+ vocab_file = (filename_prefix + "-" if filename_prefix else "") + save_directory
324
+ with open(vocab_file, "wb") as f:
325
+ pickle.dump(self.__dict__, f)
326
+ return (vocab_file,)
327
+
328
+ def build_vocab(self):
329
+ if self.vocab_file:
330
+ logger.info(f"building vocab from {self.vocab_file}")
331
+ self._build_from_file(self.vocab_file)
332
+ logger.info(f"Final vocab size {len(self.sym2idx)}")
333
+ else:
334
+ logger.info(f"building vocab with min_freq={self.min_freq}, max_size={self.max_size}")
335
+ self.idx2sym = []
336
+ self.sym2idx = OrderedDict()
337
+
338
+ for sym in self.special:
339
+ self.add_special(sym)
340
+
341
+ for sym, cnt in self.counter.most_common(self.max_size):
342
+ if cnt < self.min_freq:
343
+ break
344
+ self.add_symbol(sym)
345
+
346
+ logger.info(f"Final vocab size {len(self.sym2idx)} from {len(self.counter)} unique tokens")
347
+
348
+ @torch_only_method
349
+ def encode_file(self, path, ordered=False, verbose=False, add_eos=True, add_double_eos=False):
350
+ if verbose:
351
+ logger.info(f"encoding file {path} ...")
352
+ assert os.path.exists(path), f"Output file {path} not found"
353
+ encoded = []
354
+ with open(path, "r", encoding="utf-8") as f:
355
+ for idx, line in enumerate(f):
356
+ if verbose and idx > 0 and idx % 500000 == 0:
357
+ logger.info(f" line {idx}")
358
+ symbols = self.tokenize(line, add_eos=add_eos, add_double_eos=add_double_eos)
359
+ encoded.append(self.convert_to_tensor(symbols))
360
+
361
+ if ordered:
362
+ encoded = torch.cat(encoded)
363
+
364
+ return encoded
365
+
366
+ @torch_only_method
367
+ def encode_sents(self, sents, ordered=False, verbose=False):
368
+ if verbose:
369
+ logger.info(f"encoding {len(sents)} sents ...")
370
+ encoded = []
371
+ for idx, symbols in enumerate(sents):
372
+ if verbose and idx > 0 and idx % 500000 == 0:
373
+ logger.info(f" line {idx}")
374
+ encoded.append(self.convert_to_tensor(symbols))
375
+
376
+ if ordered:
377
+ encoded = torch.cat(encoded)
378
+
379
+ return encoded
380
+
381
+ def add_special(self, sym):
382
+ if sym not in self.sym2idx:
383
+ self.idx2sym.append(sym)
384
+ self.sym2idx[sym] = len(self.idx2sym) - 1
385
+ setattr(self, f"{sym.strip('<>')}_idx", self.sym2idx[sym])
386
+
387
+ def add_symbol(self, sym):
388
+ if sym not in self.sym2idx:
389
+ self.idx2sym.append(sym)
390
+ self.sym2idx[sym] = len(self.idx2sym) - 1
391
+
392
+ def move_added_token(self, token: str, target_idx: int):
393
+ """
394
+ Moves an added token to a specific position in the vocab. This method should be used when resizing an embedding
395
+ layer other than the last one in the `AdaptiveEmbedding` in order to move the token in the tokenizer from the
396
+ default position (at the very end) to the desired one.
397
+
398
+ Args:
399
+ token: The token to move to a specific position in the vocab.
400
+ target_idx: The position where the token should be moved to.
401
+ """
402
+ assert token in self.added_tokens_encoder, "Token which should be moved has to be an added token"
403
+ assert token not in self.idx2sym, "Token which should be moved is already in vocab"
404
+
405
+ # Insert sym into vocab
406
+ self.idx2sym.insert(target_idx, token)
407
+ self.sym2idx[token] = target_idx
408
+
409
+ # Shift following indices in sym2idx
410
+ for idx in range(target_idx + 1, len(self.idx2sym)):
411
+ current_sym = self.idx2sym[idx]
412
+ self.sym2idx[current_sym] = idx
413
+
414
+ # Delete token from added_tokens
415
+ old_index = self._added_tokens_encoder.pop(token)
416
+ self._added_tokens_decoder.pop(old_index)
417
+
418
+ def moses_punct_norm(self, text):
419
+ return self.moses_punct_normalizer.normalize(text)
420
+
421
+ def moses_tokenize(self, text):
422
+ return self.moses_tokenizer.tokenize(
423
+ text, aggressive_dash_splits=True, return_str=False, escape=False, protected_patterns=self.never_split
424
+ )
425
+
426
+ def moses_pipeline(self, text: str) -> List[str]:
427
+ """
428
+ Does basic tokenization using [`sacremoses.MosesPunctNormalizer`] and [`sacremoses.MosesTokenizer`] with
429
+ *aggressive_dash_splits=True* (see [`sacremoses.tokenize.MosesTokenizer.tokenize`]). Additionally, large
430
+ comma-separated numbers and floating point values are split. E.g. "23,000 people are 1.80m tall" -> "23 @,@ 000
431
+ people are 1 @.@ 80m tall"
432
+
433
+ Args:
434
+ text: Text to be tokenize
435
+
436
+ Returns:
437
+ A list of tokenized string
438
+
439
+ Example:
440
+
441
+ ```python
442
+ >>> tokenizer = TransfoXLTokenizer.from_pretrained("transfo-xl/transfo-xl-wt103")
443
+ >>> tokenizer.moses_pipeline("23,000 people are 1.80 m tall")
444
+ ['23', '@,@', '000', 'people', 'are', '1', '@.@', '80', 'm', 'tall']
445
+ ```"""
446
+ text = self.moses_punct_norm(text)
447
+ text = self.moses_tokenize(text)
448
+ text = tokenize_numbers(text)
449
+ return text
450
+
451
+ def _convert_id_to_token(self, idx):
452
+ """Converts an id in a token (BPE) using the vocab."""
453
+ assert 0 <= idx < len(self), f"Index {idx} out of vocabulary range"
454
+ return self.idx2sym[idx]
455
+
456
+ def _convert_token_to_id(self, sym):
457
+ """Converts a token (str) in an id using the vocab."""
458
+ if sym in self.sym2idx:
459
+ return self.sym2idx[sym]
460
+ else:
461
+ # logger.info(f'encounter unk {sym}')
462
+ # assert '<eos>' not in sym
463
+ if hasattr(self, "unk_idx"):
464
+ return self.sym2idx.get(sym, self.unk_idx)
465
+ # Backward compatibility with pre-trained models
466
+ elif "<unk>" in self.sym2idx:
467
+ return self.sym2idx["<unk>"]
468
+ elif "<UNK>" in self.sym2idx:
469
+ return self.sym2idx["<UNK>"]
470
+ else:
471
+ raise ValueError("Token not in vocabulary and no <unk> token in vocabulary for replacement.")
472
+
473
+ def convert_tokens_to_string(self, tokens):
474
+ """
475
+ Converts a sequence of tokens (string) in a single string. Additionally, the split numbers are converted back
476
+ into it's original form.
477
+ """
478
+ out_string = self.moses_detokenizer.detokenize(tokens)
479
+ return detokenize_numbers(out_string).strip()
480
+
481
+ @torch_only_method
482
+ def convert_to_tensor(self, symbols):
483
+ return torch.LongTensor(self.convert_tokens_to_ids(symbols))
484
+
485
+ @property
486
+ def vocab_size(self):
487
+ return len(self.idx2sym)
488
+
489
+ def get_vocab(self):
490
+ vocab = self.sym2idx.copy()
491
+ vocab.update(self.added_tokens_encoder)
492
+ return vocab
493
+
494
+ def _tokenize(self, line, add_eos=False, add_double_eos=False):
495
+ line = line.strip()
496
+ # convert to lower case
497
+ if self.lower_case:
498
+ line = line.lower()
499
+
500
+ # empty delimiter '' will evaluate False
501
+ if self.delimiter == "":
502
+ symbols = line
503
+ else:
504
+ symbols = self.moses_pipeline(line)
505
+
506
+ if add_double_eos: # lm1b
507
+ return ["<S>"] + symbols + ["<S>"]
508
+ elif add_eos:
509
+ return symbols + ["<eos>"]
510
+ else:
511
+ return symbols
512
+
513
+
514
+ class LMOrderedIterator:
515
+ def __init__(self, data, bsz, bptt, device="cpu", ext_len=None):
516
+ """
517
+ data -- LongTensor -- the LongTensor is strictly ordered
518
+ """
519
+ self.bsz = bsz
520
+ self.bptt = bptt
521
+ self.ext_len = ext_len if ext_len is not None else 0
522
+
523
+ self.device = device
524
+
525
+ # Work out how cleanly we can divide the dataset into bsz parts.
526
+ self.n_step = data.size(0) // bsz
527
+
528
+ # Trim off any extra elements that wouldn't cleanly fit (remainders).
529
+ data = data.narrow(0, 0, self.n_step * bsz)
530
+
531
+ # Evenly divide the data across the bsz batches.
532
+ self.data = data.view(bsz, -1).t().contiguous().to(device)
533
+
534
+ # Number of mini-batches
535
+ self.n_batch = (self.n_step + self.bptt - 1) // self.bptt
536
+
537
+ def get_batch(self, i, bptt=None):
538
+ if bptt is None:
539
+ bptt = self.bptt
540
+ seq_len = min(bptt, self.data.size(0) - 1 - i)
541
+
542
+ end_idx = i + seq_len
543
+ beg_idx = max(0, i - self.ext_len)
544
+
545
+ data = self.data[beg_idx:end_idx]
546
+ target = self.data[i + 1 : i + 1 + seq_len]
547
+
548
+ data_out = data.transpose(0, 1).contiguous().to(self.device)
549
+ target_out = target.transpose(0, 1).contiguous().to(self.device)
550
+
551
+ return data_out, target_out, seq_len
552
+
553
+ def get_fixlen_iter(self, start=0):
554
+ for i in range(start, self.data.size(0) - 1, self.bptt):
555
+ yield self.get_batch(i)
556
+
557
+ def get_varlen_iter(self, start=0, std=5, min_len=5, max_deviation=3):
558
+ max_len = self.bptt + max_deviation * std
559
+ i = start
560
+ while True:
561
+ bptt = self.bptt if np.random.random() < 0.95 else self.bptt / 2.0
562
+ bptt = min(max_len, max(min_len, int(np.random.normal(bptt, std))))
563
+ data, target, seq_len = self.get_batch(i, bptt)
564
+ i += seq_len
565
+ yield data, target, seq_len
566
+ if i >= self.data.size(0) - 2:
567
+ break
568
+
569
+ def __iter__(self):
570
+ return self.get_fixlen_iter()
571
+
572
+
573
+ class LMShuffledIterator:
574
+ def __init__(self, data, bsz, bptt, device="cpu", ext_len=None, shuffle=False):
575
+ """
576
+ data -- list[LongTensor] -- there is no order among the LongTensors
577
+ """
578
+ self.data = data
579
+
580
+ self.bsz = bsz
581
+ self.bptt = bptt
582
+ self.ext_len = ext_len if ext_len is not None else 0
583
+
584
+ self.device = device
585
+ self.shuffle = shuffle
586
+
587
+ def get_sent_stream(self):
588
+ # index iterator
589
+ epoch_indices = np.random.permutation(len(self.data)) if self.shuffle else np.array(range(len(self.data)))
590
+
591
+ # sentence iterator
592
+ for idx in epoch_indices:
593
+ yield self.data[idx]
594
+
595
+ @torch_only_method
596
+ def stream_iterator(self, sent_stream):
597
+ # streams for each data in the batch
598
+ streams = [None] * self.bsz
599
+
600
+ data = torch.LongTensor(self.bptt, self.bsz)
601
+ target = torch.LongTensor(self.bptt, self.bsz)
602
+
603
+ n_retain = 0
604
+
605
+ while True:
606
+ # data : [n_retain+bptt x bsz]
607
+ # target : [bptt x bsz]
608
+ data[n_retain:].fill_(-1)
609
+ target.fill_(-1)
610
+
611
+ valid_batch = True
612
+
613
+ for i in range(self.bsz):
614
+ n_filled = 0
615
+ try:
616
+ while n_filled < self.bptt:
617
+ if streams[i] is None or len(streams[i]) <= 1:
618
+ streams[i] = next(sent_stream)
619
+ # number of new tokens to fill in
620
+ n_new = min(len(streams[i]) - 1, self.bptt - n_filled)
621
+ # first n_retain tokens are retained from last batch
622
+ data[n_retain + n_filled : n_retain + n_filled + n_new, i] = streams[i][:n_new]
623
+ target[n_filled : n_filled + n_new, i] = streams[i][1 : n_new + 1]
624
+ streams[i] = streams[i][n_new:]
625
+ n_filled += n_new
626
+ except StopIteration:
627
+ valid_batch = False
628
+ break
629
+
630
+ if not valid_batch:
631
+ return
632
+
633
+ data_out = data.transpose(0, 1).contiguous().to(self.device)
634
+ target_out = target.transpose(0, 1).contiguous().to(self.device)
635
+
636
+ yield data_out, target_out, self.bptt
637
+
638
+ n_retain = min(data.size(0), self.ext_len)
639
+ if n_retain > 0:
640
+ data[:n_retain] = data[-n_retain:]
641
+ data.resize_(n_retain + self.bptt, data.size(1))
642
+
643
+ def __iter__(self):
644
+ # sent_stream is an iterator
645
+ sent_stream = self.get_sent_stream()
646
+
647
+ for batch in self.stream_iterator(sent_stream):
648
+ yield batch
649
+
650
+
651
+ class LMMultiFileIterator(LMShuffledIterator):
652
+ def __init__(self, paths, vocab, bsz, bptt, device="cpu", ext_len=None, shuffle=False):
653
+ self.paths = paths
654
+ self.vocab = vocab
655
+
656
+ self.bsz = bsz
657
+ self.bptt = bptt
658
+ self.ext_len = ext_len if ext_len is not None else 0
659
+
660
+ self.device = device
661
+ self.shuffle = shuffle
662
+
663
+ def get_sent_stream(self, path):
664
+ sents = self.vocab.encode_file(path, add_double_eos=True)
665
+ if self.shuffle:
666
+ np.random.shuffle(sents)
667
+ sent_stream = iter(sents)
668
+
669
+ return sent_stream
670
+
671
+ def __iter__(self):
672
+ if self.shuffle:
673
+ np.random.shuffle(self.paths)
674
+
675
+ for path in self.paths:
676
+ # sent_stream is an iterator
677
+ sent_stream = self.get_sent_stream(path)
678
+ for batch in self.stream_iterator(sent_stream):
679
+ yield batch
680
+
681
+
682
+ class TransfoXLCorpus:
683
+ @classmethod
684
+ @torch_only_method
685
+ def from_pretrained(cls, pretrained_model_name_or_path, cache_dir=None, *inputs, **kwargs):
686
+ """
687
+ Instantiate a pre-processed corpus.
688
+ """
689
+ vocab = TransfoXLTokenizer.from_pretrained(pretrained_model_name_or_path, *inputs, **kwargs)
690
+ is_local = os.path.isdir(pretrained_model_name_or_path)
691
+ # redirect to the cache, if necessary
692
+ try:
693
+ resolved_corpus_file = cached_file(pretrained_model_name_or_path, CORPUS_NAME, cache_dir=cache_dir)
694
+ except EnvironmentError:
695
+ logger.error(
696
+ f"Corpus '{pretrained_model_name_or_path}' was not found in corpus list"
697
+ f" ({', '.join(PRETRAINED_CORPUS_ARCHIVE_MAP.keys())}. We assumed '{pretrained_model_name_or_path}'"
698
+ f" was a path or url but couldn't find files {CORPUS_NAME} at this path or url."
699
+ )
700
+ return None
701
+ if is_local:
702
+ logger.info(f"loading corpus file {resolved_corpus_file}")
703
+ else:
704
+ logger.info(f"loading corpus file {CORPUS_NAME} from cache at {resolved_corpus_file}")
705
+
706
+ # Instantiate tokenizer.
707
+ corpus = cls(*inputs, **kwargs)
708
+ corpus_dict = torch.load(resolved_corpus_file, weights_only=True)
709
+ for key, value in corpus_dict.items():
710
+ corpus.__dict__[key] = value
711
+ corpus.vocab = vocab
712
+ if corpus.train is not None:
713
+ corpus.train = torch.tensor(corpus.train, dtype=torch.long)
714
+ if corpus.valid is not None:
715
+ corpus.valid = torch.tensor(corpus.valid, dtype=torch.long)
716
+ if corpus.test is not None:
717
+ corpus.test = torch.tensor(corpus.test, dtype=torch.long)
718
+ return corpus
719
+
720
+ def __init__(self, *args, **kwargs):
721
+ self.vocab = TransfoXLTokenizer(*args, **kwargs)
722
+ self.dataset = None
723
+ self.train = None
724
+ self.valid = None
725
+ self.test = None
726
+
727
+ def build_corpus(self, path, dataset):
728
+ self.dataset = dataset
729
+
730
+ if self.dataset in ["ptb", "wt2", "enwik8", "text8"]:
731
+ self.vocab.count_file(os.path.join(path, "train.txt"))
732
+ self.vocab.count_file(os.path.join(path, "valid.txt"))
733
+ self.vocab.count_file(os.path.join(path, "test.txt"))
734
+ elif self.dataset == "wt103":
735
+ self.vocab.count_file(os.path.join(path, "train.txt"))
736
+ elif self.dataset == "lm1b":
737
+ train_path_pattern = os.path.join(
738
+ path,
739
+ "1-billion-word-language-modeling-benchmark-r13output",
740
+ "training-monolingual.tokenized.shuffled",
741
+ "news.en-*",
742
+ )
743
+ train_paths = glob.glob(train_path_pattern)
744
+ # the vocab will load from file when build_vocab() is called
745
+
746
+ self.vocab.build_vocab()
747
+
748
+ if self.dataset in ["ptb", "wt2", "wt103"]:
749
+ self.train = self.vocab.encode_file(os.path.join(path, "train.txt"), ordered=True)
750
+ self.valid = self.vocab.encode_file(os.path.join(path, "valid.txt"), ordered=True)
751
+ self.test = self.vocab.encode_file(os.path.join(path, "test.txt"), ordered=True)
752
+ elif self.dataset in ["enwik8", "text8"]:
753
+ self.train = self.vocab.encode_file(os.path.join(path, "train.txt"), ordered=True, add_eos=False)
754
+ self.valid = self.vocab.encode_file(os.path.join(path, "valid.txt"), ordered=True, add_eos=False)
755
+ self.test = self.vocab.encode_file(os.path.join(path, "test.txt"), ordered=True, add_eos=False)
756
+ elif self.dataset == "lm1b":
757
+ self.train = train_paths
758
+ self.valid = self.vocab.encode_file(os.path.join(path, "valid.txt"), ordered=False, add_double_eos=True)
759
+ self.test = self.vocab.encode_file(os.path.join(path, "test.txt"), ordered=False, add_double_eos=True)
760
+
761
+ def get_iterator(self, split, *args, **kwargs):
762
+ if split == "train":
763
+ if self.dataset in ["ptb", "wt2", "wt103", "enwik8", "text8"]:
764
+ data_iter = LMOrderedIterator(self.train, *args, **kwargs)
765
+ elif self.dataset == "lm1b":
766
+ kwargs["shuffle"] = True
767
+ data_iter = LMMultiFileIterator(self.train, self.vocab, *args, **kwargs)
768
+ elif split in ["valid", "test"]:
769
+ data = self.valid if split == "valid" else self.test
770
+ if self.dataset in ["ptb", "wt2", "wt103", "enwik8", "text8"]:
771
+ data_iter = LMOrderedIterator(data, *args, **kwargs)
772
+ elif self.dataset == "lm1b":
773
+ data_iter = LMShuffledIterator(data, *args, **kwargs)
774
+ else:
775
+ data_iter = None
776
+ raise ValueError(f"Split not recognized: {split}")
777
+
778
+ return data_iter
779
+
780
+
781
+ @torch_only_method
782
+ def get_lm_corpus(datadir, dataset):
783
+ fn = os.path.join(datadir, "cache.pt")
784
+ fn_pickle = os.path.join(datadir, "cache.pkl")
785
+ if os.path.exists(fn):
786
+ logger.info("Loading cached dataset...")
787
+ corpus = torch.load(fn_pickle, weights_only=True)
788
+ elif os.path.exists(fn):
789
+ logger.info("Loading cached dataset from pickle...")
790
+ if not strtobool(os.environ.get("TRUST_REMOTE_CODE", "False")):
791
+ raise ValueError(
792
+ "This part uses `pickle.load` which is insecure and will execute arbitrary code that is potentially "
793
+ "malicious. It's recommended to never unpickle data that could have come from an untrusted source, or "
794
+ "that could have been tampered with. If you already verified the pickle data and decided to use it, "
795
+ "you can set the environment variable `TRUST_REMOTE_CODE` to `True` to allow it."
796
+ )
797
+ with open(fn, "rb") as fp:
798
+ corpus = pickle.load(fp)
799
+ else:
800
+ logger.info(f"Producing dataset {dataset}...")
801
+ kwargs = {}
802
+ if dataset in ["wt103", "wt2"]:
803
+ kwargs["special"] = ["<eos>"]
804
+ kwargs["lower_case"] = False
805
+ elif dataset == "ptb":
806
+ kwargs["special"] = ["<eos>"]
807
+ kwargs["lower_case"] = True
808
+ elif dataset == "lm1b":
809
+ kwargs["special"] = []
810
+ kwargs["lower_case"] = False
811
+ kwargs["vocab_file"] = os.path.join(datadir, "1b_word_vocab.txt")
812
+ elif dataset in ["enwik8", "text8"]:
813
+ pass
814
+
815
+ corpus = TransfoXLCorpus(datadir, dataset, **kwargs)
816
+ torch.save(corpus, fn)
817
+
818
+ return corpus
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/tvlt/__init__.py ADDED
@@ -0,0 +1,86 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # flake8: noqa
2
+ # There's no way to ignore "F401 '...' imported but unused" warnings in this
3
+ # module, but to preserve other warnings. So, don't check this module at all.
4
+
5
+ # Copyright 2023 The HuggingFace Team. All rights reserved.
6
+ #
7
+ # Licensed under the Apache License, Version 2.0 (the "License");
8
+ # you may not use this file except in compliance with the License.
9
+ # You may obtain a copy of the License at
10
+ #
11
+ # http://www.apache.org/licenses/LICENSE-2.0
12
+ #
13
+ # Unless required by applicable law or agreed to in writing, software
14
+ # distributed under the License is distributed on an "AS IS" BASIS,
15
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16
+ # See the License for the specific language governing permissions and
17
+ # limitations under the License.
18
+ from typing import TYPE_CHECKING
19
+
20
+ from ....utils import (
21
+ OptionalDependencyNotAvailable,
22
+ _LazyModule,
23
+ is_torch_available,
24
+ is_vision_available,
25
+ )
26
+
27
+
28
+ _import_structure = {
29
+ "configuration_tvlt": ["TvltConfig"],
30
+ "feature_extraction_tvlt": ["TvltFeatureExtractor"],
31
+ "processing_tvlt": ["TvltProcessor"],
32
+ }
33
+
34
+ try:
35
+ if not is_torch_available():
36
+ raise OptionalDependencyNotAvailable()
37
+ except OptionalDependencyNotAvailable:
38
+ pass
39
+ else:
40
+ _import_structure["modeling_tvlt"] = [
41
+ "TvltModel",
42
+ "TvltForPreTraining",
43
+ "TvltForAudioVisualClassification",
44
+ "TvltPreTrainedModel",
45
+ ]
46
+
47
+ try:
48
+ if not is_vision_available():
49
+ raise OptionalDependencyNotAvailable()
50
+ except OptionalDependencyNotAvailable:
51
+ pass
52
+ else:
53
+ _import_structure["image_processing_tvlt"] = ["TvltImageProcessor"]
54
+
55
+
56
+ if TYPE_CHECKING:
57
+ from .configuration_tvlt import TvltConfig
58
+ from .processing_tvlt import TvltProcessor
59
+ from .feature_extraction_tvlt import TvltFeatureExtractor
60
+
61
+ try:
62
+ if not is_torch_available():
63
+ raise OptionalDependencyNotAvailable()
64
+ except OptionalDependencyNotAvailable:
65
+ pass
66
+ else:
67
+ from .modeling_tvlt import (
68
+ TvltForAudioVisualClassification,
69
+ TvltForPreTraining,
70
+ TvltModel,
71
+ TvltPreTrainedModel,
72
+ )
73
+
74
+ try:
75
+ if not is_vision_available():
76
+ raise OptionalDependencyNotAvailable()
77
+ except OptionalDependencyNotAvailable:
78
+ pass
79
+ else:
80
+ from .image_processing_tvlt import TvltImageProcessor
81
+
82
+
83
+ else:
84
+ import sys
85
+
86
+ sys.modules[__name__] = _LazyModule(__name__, globals()["__file__"], _import_structure, module_spec=__spec__)
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/tvlt/configuration_tvlt.py ADDED
@@ -0,0 +1,184 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2023 MURGe-Lab 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
+ """TVLT 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 TvltConfig(PretrainedConfig):
25
+ r"""
26
+ This is the configuration class to store the configuration of a [`TvltModel`]. It is used to instantiate a TVLT
27
+ model 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 TVLT
29
+ [ZinengTang/tvlt-base](https://huggingface.co/ZinengTang/tvlt-base) 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
+ image_size (`int`, *optional*, defaults to 224):
36
+ The size (resolution) of each image.
37
+ spectrogram_length (`int`, *optional*, defaults to 2048):
38
+ The time length of each audio spectrogram.
39
+ frequency_length (`int`, *optional*, defaults to 128):
40
+ The frequency length of audio spectrogram.
41
+ image_patch_size (`List[int]`, *optional*, defaults to `[16, 16]`):
42
+ The size (resolution) of each image patch.
43
+ audio_patch_size (`List[int]`, *optional*, defaults to `[16, 16]`):
44
+ The size (resolution) of each audio patch.
45
+ num_image_channels (`int`, *optional*, defaults to 3):
46
+ The number of input image channels.
47
+ num_audio_channels (`int`, *optional*, defaults to 1):
48
+ The number of input audio channels.
49
+ num_frames (`int`, *optional*, defaults to 8):
50
+ The maximum number of frames for an input video.
51
+ hidden_size (`int`, *optional*, defaults to 768):
52
+ Dimensionality of the encoder layers and the pooler layer.
53
+ num_hidden_layers (`int`, *optional*, defaults to 12):
54
+ Number of hidden layers in the Transformer encoder.
55
+ num_attention_heads (`int`, *optional*, defaults to 12):
56
+ Number of attention heads for each attention layer in the Transformer encoder.
57
+ intermediate_size (`int`, *optional*, defaults to 3072):
58
+ Dimensionality of the "intermediate" (i.e., feed-forward) layer in the Transformer encoder.
59
+ hidden_act (`str` or `function`, *optional*, defaults to `"gelu"`):
60
+ The non-linear activation function (function or string) in the encoder and pooler. If string, `"gelu"`,
61
+ `"relu"`, `"selu"` and `"gelu_new"` are supported.
62
+ hidden_dropout_prob (`float`, *optional*, defaults to 0.0):
63
+ The dropout probability for all fully connected layers in the embeddings, encoder, and pooler.
64
+ attention_probs_dropout_prob (`float`, *optional*, defaults to 0.0):
65
+ The dropout ratio for the attention probabilities.
66
+ initializer_range (`float`, *optional*, defaults to 0.02):
67
+ The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
68
+ layer_norm_eps (`float`, *optional*, defaults to 1e-06):
69
+ The epsilon used by the layer normalization layers.
70
+ qkv_bias (`bool`, *optional*, defaults to `True`):
71
+ Whether to add a bias to the queries, keys and values.
72
+ use_mean_pooling (`bool`, *optional*, defaults to `False`):
73
+ Whether to mean pool the final hidden states instead of using the final hidden state of the [CLS] token.
74
+ decoder_num_attention_heads (`int`, *optional*, defaults to 16):
75
+ Number of attention heads for each attention layer in the decoder.
76
+ decoder_hidden_size (`int`, *optional*, defaults to 512):
77
+ Dimensionality of the decoder.
78
+ decoder_num_hidden_layers (`int`, *optional*, defaults to 8):
79
+ Number of hidden layers in the decoder.
80
+ decoder_intermediate_size (`int`, *optional*, defaults to 2048):
81
+ Dimensionality of the "intermediate" (i.e., feed-forward) layer in the decoder.
82
+ pixel_mask_ratio (`float`, *optional*, defaults to 0.75):
83
+ Image patch masking ratio.
84
+ audio_mask_ratio (`float`, *optional*, defaults to 0.15):
85
+ Audio patch masking ratio.
86
+ audio_mask_type (`str`, *optional*, defaults to `"frame-level"`):
87
+ Audio patch masking type, choose between "frame-level" and "patch-level".
88
+ task_matching (`bool`, *optional*, defaults to `True`):
89
+ Whether to use vision audio matching task in pretraining.
90
+ task_mae (`bool`, *optional*, defaults to `True`):
91
+ Whether to use the masked auto-encoder (MAE) in pretraining.
92
+ loss_type (`str`, *optional*, defaults to `"classification"`):
93
+ Loss types including regression and classification.
94
+
95
+ Example:
96
+
97
+ ```python
98
+ >>> from transformers import TvltConfig, TvltModel
99
+
100
+ >>> # # Initializing a TVLT ZinengTang/tvlt-base style configuration
101
+ >>> configuration = TvltConfig()
102
+
103
+ >>> # # Initializing a model (with random weights) from the ZinengTang/tvlt-base style configuration
104
+ >>> model = TvltModel(configuration)
105
+
106
+ >>> # Accessing the model configuration
107
+ >>> configuration = model.config
108
+ ```"""
109
+
110
+ model_type = "tvlt"
111
+
112
+ def __init__(
113
+ self,
114
+ image_size=224,
115
+ spectrogram_length=2048,
116
+ frequency_length=128,
117
+ image_patch_size=[16, 16],
118
+ audio_patch_size=[16, 16],
119
+ num_image_channels=3,
120
+ num_audio_channels=1,
121
+ num_frames=8,
122
+ hidden_size=768,
123
+ num_hidden_layers=12,
124
+ num_attention_heads=12,
125
+ intermediate_size=3072,
126
+ hidden_act="gelu",
127
+ hidden_dropout_prob=0.0,
128
+ attention_probs_dropout_prob=0.0,
129
+ initializer_range=0.02,
130
+ layer_norm_eps=1e-6,
131
+ qkv_bias=True,
132
+ use_mean_pooling=False,
133
+ decoder_num_attention_heads=16,
134
+ decoder_hidden_size=512,
135
+ decoder_num_hidden_layers=8,
136
+ decoder_intermediate_size=2048,
137
+ pixel_mask_ratio=0.75,
138
+ audio_mask_ratio=0.15,
139
+ audio_mask_type="frame-level",
140
+ task_matching=True,
141
+ task_mae=True,
142
+ loss_type="classification",
143
+ **kwargs,
144
+ ):
145
+ super().__init__(**kwargs)
146
+
147
+ if audio_mask_type not in ("frame-level", "patch_level"):
148
+ raise ValueError(
149
+ "audio_mask_type must be one of two acceptable strategies - {'frame_level', 'patch-level') "
150
+ f"got {audio_mask_type}"
151
+ )
152
+
153
+ self.image_size = image_size
154
+ self.spectrogram_length = spectrogram_length
155
+ self.frequency_length = frequency_length
156
+ self.image_patch_size = image_patch_size
157
+ self.audio_patch_size = audio_patch_size
158
+ self.num_image_channels = num_image_channels
159
+ self.num_audio_channels = num_audio_channels
160
+ self.num_frames = num_frames
161
+
162
+ self.hidden_size = hidden_size
163
+ self.num_hidden_layers = num_hidden_layers
164
+ self.num_attention_heads = num_attention_heads
165
+ self.intermediate_size = intermediate_size
166
+ self.hidden_act = hidden_act
167
+ self.hidden_dropout_prob = hidden_dropout_prob
168
+ self.attention_probs_dropout_prob = attention_probs_dropout_prob
169
+ self.initializer_range = initializer_range
170
+ self.layer_norm_eps = layer_norm_eps
171
+ self.qkv_bias = qkv_bias
172
+ self.use_mean_pooling = use_mean_pooling
173
+
174
+ self.decoder_num_attention_heads = decoder_num_attention_heads
175
+ self.decoder_hidden_size = decoder_hidden_size
176
+ self.decoder_num_hidden_layers = decoder_num_hidden_layers
177
+ self.decoder_intermediate_size = decoder_intermediate_size
178
+ self.pixel_mask_ratio = pixel_mask_ratio
179
+ self.audio_mask_ratio = audio_mask_ratio
180
+ self.audio_mask_type = audio_mask_type
181
+
182
+ self.task_matching = task_matching
183
+ self.task_mae = task_mae
184
+ self.loss_type = loss_type
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/tvlt/feature_extraction_tvlt.py ADDED
@@ -0,0 +1,230 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2023 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 TVLT."""
16
+
17
+ from math import ceil
18
+ from typing import List, Optional, Union
19
+
20
+ import numpy as np
21
+
22
+ from ....audio_utils import mel_filter_bank, spectrogram, window_function
23
+ from ....feature_extraction_sequence_utils import BatchFeature, SequenceFeatureExtractor
24
+ from ....utils import TensorType, logging
25
+
26
+
27
+ logger = logging.get_logger(__name__)
28
+
29
+
30
+ class TvltFeatureExtractor(SequenceFeatureExtractor):
31
+ r"""
32
+ Constructs a TVLT audio feature extractor. This feature extractor can be used to prepare audios for the model.
33
+
34
+ This feature extractor inherits from [`FeatureExtractionMixin`] which contains most of the main methods. Users
35
+ should refer to this superclass for more information regarding those methods.
36
+
37
+ Args:
38
+ spectrogram_length (`Dict[str, int]` *optional*, defaults to 2048):
39
+ The time length of each audio spectrogram.
40
+ num_channels (`int` *optional*, defaults to 1):
41
+ Number of audio channels.
42
+ patch_size (`List[int]` *optional*, defaults to `[16, 16]`):
43
+ The patch size of audio patch embedding.
44
+ feature_size (`int`, *optional*, defaults to 128):
45
+ The frequency length of audio spectrogram.
46
+ sampling_rate (`int`, *optional*, defaults to 44100):
47
+ The sampling rate at which the audio files should be digitalized expressed in Hertz (Hz).
48
+ hop_length_to_sampling_rate (`int`, *optional*, defaults to 86):
49
+ Hop length is length of the overlaping windows for the STFT used to obtain the Mel Frequency coefficients.
50
+ For example, with sampling rate 44100, the hop length is 512, with 44100 / 512 = 86
51
+ n_fft (`int`, *optional*, defaults to 2048):
52
+ Size of the Fourier transform.
53
+ padding_value (`float`, *optional*, defaults to 0.0):
54
+ Padding value used to pad the audio. Should correspond to silences.
55
+ """
56
+
57
+ model_input_names = ["audio_values", "audio_mask"]
58
+
59
+ def __init__(
60
+ self,
61
+ spectrogram_length=2048,
62
+ num_channels=1,
63
+ patch_size=[16, 16],
64
+ feature_size=128,
65
+ sampling_rate=44100,
66
+ hop_length_to_sampling_rate=86,
67
+ n_fft=2048,
68
+ padding_value=0.0,
69
+ **kwargs,
70
+ ):
71
+ super().__init__(
72
+ feature_size=feature_size,
73
+ sampling_rate=sampling_rate,
74
+ padding_value=padding_value,
75
+ **kwargs,
76
+ )
77
+
78
+ self.spectrogram_length = spectrogram_length
79
+ self.num_channels = num_channels
80
+ self.patch_size = patch_size
81
+ self.freq_len = feature_size // self.patch_size[1]
82
+ self.n_fft = n_fft
83
+ self.hop_length = sampling_rate // hop_length_to_sampling_rate
84
+ self.sampling_rate = sampling_rate
85
+ self.padding_value = padding_value
86
+ self.mel_filters = mel_filter_bank(
87
+ num_frequency_bins=1 + n_fft // 2,
88
+ num_mel_filters=feature_size,
89
+ min_frequency=0.0,
90
+ max_frequency=22050.0,
91
+ sampling_rate=sampling_rate,
92
+ norm="slaney",
93
+ mel_scale="slaney",
94
+ ).T
95
+
96
+ def _np_extract_fbank_features(self, waveform: np.array) -> np.ndarray:
97
+ """
98
+ Compute the log-mel spectrogram of the provided audio, gives similar results to Whisper's original torch
99
+ implementation with 1e-5 tolerance.
100
+ """
101
+ log_spec = spectrogram(
102
+ waveform,
103
+ window_function(self.n_fft, "hann"),
104
+ frame_length=self.n_fft,
105
+ hop_length=self.hop_length,
106
+ power=2.0,
107
+ mel_filters=self.mel_filters.T,
108
+ log_mel="dB",
109
+ db_range=80.0,
110
+ )
111
+ log_spec = log_spec[:, :-1]
112
+ log_spec = log_spec - 20.0
113
+ log_spec = np.clip(log_spec / 40.0, -2.0, 0.0) + 1.0
114
+ return log_spec
115
+
116
+ def __call__(
117
+ self,
118
+ raw_speech: Union[np.ndarray, List[float], List[np.ndarray], List[List[float]]],
119
+ return_tensors: Optional[Union[str, TensorType]] = None,
120
+ return_attention_mask: Optional[bool] = True,
121
+ sampling_rate: Optional[int] = None,
122
+ resample: bool = False,
123
+ mask_audio: bool = False,
124
+ **kwargs,
125
+ ) -> BatchFeature:
126
+ """
127
+ Main method to prepare one or several audio(s) for the model.
128
+
129
+ Args:
130
+ raw_speech (`np.ndarray`, `List[float]`, `List[np.ndarray]`, `List[List[float]]`):
131
+ The sequence or batch of sequences to be padded. Each sequence can be a numpy array, a list of float
132
+ values, a list of numpy arrays or a list of list of float values. Must be mono channel audio, not
133
+ stereo, i.e. single float per timestep.
134
+ return_tensors (`str` or [`~utils.TensorType`], *optional*):
135
+ If set, will return tensors instead of list of python integers. Acceptable values are:
136
+ - `'pt'`: Return PyTorch `torch.Tensor` objects.
137
+ - `'np'`: Return Numpy `np.ndarray` objects.
138
+ return_attention_mask (`bool`, *optional*, default to `True`):
139
+ Whether to return the attention mask. If left to the default, will return the attention mask according
140
+ to the specific feature_extractor's default. [What are attention masks?](../glossary#attention-mask)
141
+
142
+ <Tip>
143
+
144
+ For TvltTransformer models, `attention_mask` should alwys be passed for batched inference, to avoid
145
+ subtle bugs.
146
+
147
+ </Tip>
148
+
149
+ sampling_rate (`int`, *optional*):
150
+ The sampling rate at which the `raw_speech` input was sampled. It is strongly recommended to pass
151
+ `sampling_rate` at the forward call to prevent silent errors and allow automatic speech recognition
152
+ pipeline. Current model supports sampling rate 16000 and 44100.
153
+ resample (`bool`, *optional*, defaults to `False`):
154
+ If the sampling rate is not matched, resample the input audio to match.
155
+ mask_audio (`bool`, *optional*, defaults to `False`):
156
+ Whether or not to mask input audio for MAE task.
157
+
158
+ Returns:
159
+ [`BatchFeature`]: A [`BatchFeature`] with the following fields:
160
+
161
+ - **audio_values** -- Audio values to be fed to a model, of shape (batch_size, num_channels, height,
162
+ width).
163
+
164
+ - **audio_mask** -- Audio masks to be fed to a model, of shape (batch_size, num_audio_patches).
165
+ """
166
+
167
+ if sampling_rate is not None:
168
+ if sampling_rate != self.sampling_rate:
169
+ raise ValueError(
170
+ "This feature extractor is set to support sampling rate"
171
+ f" of {self.sampling_rate}. Please make sure that the provided `raw_speech` input was sampled"
172
+ f" with {self.sampling_rate} and not {sampling_rate}."
173
+ )
174
+ else:
175
+ logger.warning(
176
+ "It is strongly recommended to pass the `sampling_rate` argument to this function. "
177
+ "Failing to do so can result in silent errors that might be hard to debug."
178
+ )
179
+
180
+ is_batched_numpy = isinstance(raw_speech, np.ndarray) and len(raw_speech.shape) > 1
181
+ if is_batched_numpy and len(raw_speech.shape) > 2:
182
+ raise ValueError(f"Only mono-channel audio is supported for input to {self}")
183
+ is_batched = is_batched_numpy or (
184
+ isinstance(raw_speech, (list, tuple)) and (isinstance(raw_speech[0], (np.ndarray, tuple, list)))
185
+ )
186
+ if is_batched:
187
+ raw_speech = [np.asarray([speech], dtype=np.float32).T for speech in raw_speech]
188
+ elif not is_batched and not isinstance(raw_speech, np.ndarray):
189
+ raw_speech = np.asarray(raw_speech, dtype=np.float32)
190
+ elif isinstance(raw_speech, np.ndarray) and raw_speech.dtype is np.dtype(np.float64):
191
+ raw_speech = raw_speech.astype(np.float32)
192
+ # always return batch
193
+ if not is_batched:
194
+ raw_speech = [np.asarray([raw_speech]).T]
195
+
196
+ # Convert audio signals to log mel spectrograms, truncate by time axis
197
+ audio_features = [
198
+ self._np_extract_fbank_features(waveform.squeeze()).T[: self.spectrogram_length] for waveform in raw_speech
199
+ ]
200
+ if isinstance(audio_features[0], List):
201
+ audio_features = [np.asarray(feature, dtype=np.float32) for feature in audio_features]
202
+
203
+ # Create audio attention mask
204
+ max_patch_len = max(
205
+ [ceil(feature.shape[0] / self.patch_size[0]) * self.freq_len for feature in audio_features]
206
+ ) # The maximum number of audio patches in a batch
207
+ if return_attention_mask:
208
+ audio_mask = [
209
+ (ceil(feature.shape[0] / self.patch_size[0]) * self.freq_len) * [1]
210
+ + (max_patch_len - ceil(feature.shape[0] / self.patch_size[0]) * self.freq_len) * [0]
211
+ for feature in audio_features
212
+ ]
213
+ audio_mask = np.array(audio_mask).astype(np.float32)
214
+
215
+ # convert into correct format for padding
216
+ max_time_len = max_patch_len // self.freq_len * self.patch_size[0] # The maximum audio size in a batch
217
+ padded_audio_features = np.ones([len(audio_features), 1, max_time_len, self.feature_size]).astype(np.float32)
218
+ padded_audio_features = padded_audio_features * self.padding_value
219
+ for i in range(len(audio_features)):
220
+ feature = audio_features[i]
221
+ padded_audio_features[i, :, : feature.shape[0], :] = feature
222
+
223
+ # return as BatchFeature
224
+ if return_attention_mask:
225
+ data = {"audio_values": padded_audio_features, "audio_mask": audio_mask}
226
+ else:
227
+ data = {"audio_values": padded_audio_features}
228
+
229
+ encoded_inputs = BatchFeature(data=data, tensor_type=return_tensors)
230
+ return encoded_inputs
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/tvlt/image_processing_tvlt.py ADDED
@@ -0,0 +1,435 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2023 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 TVLT."""
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
+ get_resize_output_image_size,
24
+ resize,
25
+ to_channel_dimension_format,
26
+ )
27
+ from ....image_utils import (
28
+ IMAGENET_STANDARD_MEAN,
29
+ IMAGENET_STANDARD_STD,
30
+ ChannelDimension,
31
+ ImageInput,
32
+ PILImageResampling,
33
+ infer_channel_dimension_format,
34
+ is_scaled_image,
35
+ is_valid_image,
36
+ to_numpy_array,
37
+ valid_images,
38
+ validate_kwargs,
39
+ validate_preprocess_arguments,
40
+ )
41
+ from ....utils import TensorType, logging
42
+
43
+
44
+ logger = logging.get_logger(__name__)
45
+
46
+
47
+ def make_batched(videos) -> List[List[ImageInput]]:
48
+ if isinstance(videos, (list, tuple)) and isinstance(videos[0], (list, tuple)):
49
+ return videos
50
+
51
+ elif isinstance(videos, (list, tuple)) and is_valid_image(videos[0]):
52
+ videos_dim = np.array(videos[0]).ndim
53
+ if videos_dim == 3:
54
+ return [videos]
55
+ elif videos_dim == 4:
56
+ return videos
57
+
58
+ elif is_valid_image(videos):
59
+ videos_dim = np.array(videos).ndim
60
+ if videos_dim == 3:
61
+ return [[videos]]
62
+ elif videos_dim == 4:
63
+ return [videos]
64
+ elif videos_dim == 5:
65
+ return videos
66
+
67
+ raise ValueError(f"Could not make batched video from {videos}")
68
+
69
+
70
+ class TvltImageProcessor(BaseImageProcessor):
71
+ r"""
72
+ Constructs a TVLT image processor.
73
+
74
+ This processor can be used to prepare either videos or images for the model by converting images to 1-frame videos.
75
+
76
+ Args:
77
+ do_resize (`bool`, *optional*, defaults to `True`):
78
+ Whether to resize the image's (height, width) dimensions to the specified `size`. Can be overridden by the
79
+ `do_resize` parameter in the `preprocess` method.
80
+ size (`Dict[str, int]` *optional*, defaults to `{"shortest_edge": 224}`):
81
+ Size of the output image after resizing. The shortest edge of the image will be resized to
82
+ `size["shortest_edge"]` while maintaining the aspect ratio of the original image. Can be overriden by
83
+ `size` in the `preprocess` method.
84
+ patch_size (`List[int]` *optional*, defaults to [16,16]):
85
+ The patch size of image patch embedding.
86
+ num_frames (`int` *optional*, defaults to 8):
87
+ The maximum number of video frames.
88
+ resample (`PILImageResampling`, *optional*, defaults to `PILImageResampling.BILINEAR`):
89
+ Resampling filter to use if resizing the image. Can be overridden by the `resample` parameter in the
90
+ `preprocess` method.
91
+ do_center_crop (`bool`, *optional*, defaults to `True`):
92
+ Whether to center crop the image to the specified `crop_size`. Can be overridden by the `do_center_crop`
93
+ parameter in the `preprocess` method.
94
+ crop_size (`Dict[str, int]`, *optional*, defaults to `{"height": 224, "width": 224}`):
95
+ Size of the image after applying the center crop. Can be overridden by the `crop_size` parameter in the
96
+ `preprocess` method.
97
+ do_rescale (`bool`, *optional*, defaults to `True`):
98
+ Whether to rescale the image by the specified scale `rescale_factor`. Can be overridden by the `do_rescale`
99
+ parameter in the `preprocess` method.
100
+ rescale_factor (`int` or `float`, *optional*, defaults to 1/255):
101
+ Defines the scale factor to use if rescaling the image. Can be overridden by the `rescale_factor` parameter
102
+ in the `preprocess` method.
103
+ do_normalize (`bool`, *optional*, defaults to `True`):
104
+ Whether to normalize the image. Can be overridden by the `do_normalize` parameter in the `preprocess`
105
+ method.
106
+ image_mean (`float` or `List[float]`, *optional*, defaults to `IMAGENET_STANDARD_MEAN`):
107
+ Mean to use if normalizing the image. This is a float or list of floats the length of the number of
108
+ channels in the image. Can be overridden by the `image_mean` parameter in the `preprocess` method.
109
+ image_std (`float` or `List[float]`, *optional*, defaults to `IMAGENET_STANDARD_STD`):
110
+ Standard deviation to use if normalizing the image. This is a float or list of floats the length of the
111
+ number of channels in the image. Can be overridden by the `image_std` parameter in the `preprocess` method.
112
+ """
113
+
114
+ model_input_names = [
115
+ "pixel_values",
116
+ "pixel_mask",
117
+ "pixel_values_mixed",
118
+ "pixel_mask_mixed",
119
+ ]
120
+
121
+ def __init__(
122
+ self,
123
+ do_resize: bool = True,
124
+ size: Dict[str, int] = None,
125
+ patch_size: List[int] = [16, 16],
126
+ num_frames: int = 8,
127
+ resample: PILImageResampling = PILImageResampling.BILINEAR,
128
+ do_center_crop: bool = True,
129
+ crop_size: Dict[str, int] = None,
130
+ do_rescale: bool = True,
131
+ rescale_factor: Union[int, float] = 1 / 255,
132
+ do_normalize: bool = True,
133
+ image_mean: Optional[Union[float, List[float]]] = IMAGENET_STANDARD_MEAN,
134
+ image_std: Optional[Union[float, List[float]]] = IMAGENET_STANDARD_STD,
135
+ init_mask_generator=False,
136
+ **kwargs,
137
+ ) -> None:
138
+ super().__init__(**kwargs)
139
+ size = size if size is not None else {"shortest_edge": 224}
140
+ size = get_size_dict(size, default_to_square=False)
141
+ crop_size = crop_size if crop_size is not None else {"height": 224, "width": 224}
142
+ crop_size = get_size_dict(crop_size, param_name="crop_size")
143
+
144
+ self.do_resize = do_resize
145
+ self.size = size
146
+ self.patch_size = patch_size
147
+ self.num_frames = num_frames
148
+ self.do_center_crop = do_center_crop
149
+ self.crop_size = crop_size
150
+ self.resample = resample
151
+ self.do_rescale = do_rescale
152
+ self.rescale_factor = rescale_factor
153
+ self.do_normalize = do_normalize
154
+ self.image_mean = image_mean
155
+ self.image_std = image_std
156
+ self._valid_processor_keys = [
157
+ "videos",
158
+ "do_resize",
159
+ "size",
160
+ "patch_size",
161
+ "num_frames",
162
+ "resample",
163
+ "do_center_crop",
164
+ "crop_size",
165
+ "do_rescale",
166
+ "rescale_factor",
167
+ "do_normalize",
168
+ "image_mean",
169
+ "image_std",
170
+ "is_mixed",
171
+ "return_tensors",
172
+ "data_format",
173
+ "input_data_format",
174
+ ]
175
+
176
+ def resize(
177
+ self,
178
+ image: np.ndarray,
179
+ size: Dict[str, int],
180
+ resample: PILImageResampling = PILImageResampling.BILINEAR,
181
+ data_format: Optional[Union[str, ChannelDimension]] = None,
182
+ input_data_format: Optional[Union[str, ChannelDimension]] = None,
183
+ **kwargs,
184
+ ) -> np.ndarray:
185
+ """
186
+ Resize an image.
187
+
188
+ Args:
189
+ image (`np.ndarray`):
190
+ Image to resize.
191
+ size (`Dict[str, int]`):
192
+ Size of the output image. If `size` is of the form `{"height": h, "width": w}`, the output image will
193
+ have the size `(h, w)`. If `size` is of the form `{"shortest_edge": s}`, the output image will have its
194
+ shortest edge of length `s` while keeping the aspect ratio of the original image.
195
+ resample (`PILImageResampling`, *optional*, defaults to `PILImageResampling.BILINEAR`):
196
+ Resampling filter to use when resiizing the image.
197
+ data_format (`str` or `ChannelDimension`, *optional*):
198
+ The channel dimension format of the image. If not provided, it will be the same as the input image.
199
+ input_data_format (`str` or `ChannelDimension`, *optional*):
200
+ The channel dimension format of the input image. If not provided, it will be inferred.
201
+ """
202
+ size = get_size_dict(size, default_to_square=False)
203
+ if "shortest_edge" in size:
204
+ output_size = get_resize_output_image_size(
205
+ image, size["shortest_edge"], default_to_square=False, input_data_format=input_data_format
206
+ )
207
+ elif "height" in size and "width" in size:
208
+ output_size = (size["height"], size["width"])
209
+ else:
210
+ raise ValueError(f"Size must have 'height' and 'width' or 'shortest_edge' as keys. Got {size.keys()}")
211
+ return resize(
212
+ image,
213
+ size=output_size,
214
+ resample=resample,
215
+ data_format=data_format,
216
+ input_data_format=input_data_format,
217
+ **kwargs,
218
+ )
219
+
220
+ def _preprocess_image(
221
+ self,
222
+ image: ImageInput,
223
+ do_resize: bool = None,
224
+ size: Dict[str, int] = None,
225
+ resample: PILImageResampling = None,
226
+ do_center_crop: bool = None,
227
+ crop_size: Dict[str, int] = None,
228
+ do_rescale: bool = None,
229
+ rescale_factor: float = None,
230
+ do_normalize: bool = None,
231
+ image_mean: Optional[Union[float, List[float]]] = None,
232
+ image_std: Optional[Union[float, List[float]]] = None,
233
+ data_format: Optional[ChannelDimension] = ChannelDimension.FIRST,
234
+ input_data_format: Optional[Union[str, ChannelDimension]] = None,
235
+ ) -> np.ndarray:
236
+ """Preprocesses a single image."""
237
+
238
+ validate_preprocess_arguments(
239
+ do_rescale=do_rescale,
240
+ rescale_factor=rescale_factor,
241
+ do_normalize=do_normalize,
242
+ image_mean=image_mean,
243
+ image_std=image_std,
244
+ do_center_crop=do_center_crop,
245
+ crop_size=crop_size,
246
+ do_resize=do_resize,
247
+ size=size,
248
+ resample=resample,
249
+ )
250
+
251
+ # All transformations expect numpy arrays.
252
+ image = to_numpy_array(image)
253
+
254
+ if do_rescale and is_scaled_image(image):
255
+ logger.warning_once(
256
+ "It looks like you are trying to rescale already rescaled images. If the input"
257
+ " images have pixel values between 0 and 1, set `do_rescale=False` to avoid rescaling them again."
258
+ )
259
+
260
+ if input_data_format is None:
261
+ input_data_format = infer_channel_dimension_format(image)
262
+
263
+ if do_resize:
264
+ image = self.resize(image=image, size=size, resample=resample, input_data_format=input_data_format)
265
+
266
+ if do_center_crop:
267
+ image = self.center_crop(image, size=crop_size, input_data_format=input_data_format)
268
+
269
+ if do_rescale:
270
+ image = self.rescale(image=image, scale=rescale_factor, input_data_format=input_data_format)
271
+
272
+ if do_normalize:
273
+ image = self.normalize(image=image, mean=image_mean, std=image_std, input_data_format=input_data_format)
274
+ image = to_channel_dimension_format(image, data_format, input_channel_dim=input_data_format)
275
+ return image
276
+
277
+ def preprocess(
278
+ self,
279
+ videos: ImageInput,
280
+ do_resize: bool = None,
281
+ size: Dict[str, int] = None,
282
+ patch_size: List[int] = None,
283
+ num_frames: int = None,
284
+ resample: PILImageResampling = None,
285
+ do_center_crop: bool = None,
286
+ crop_size: Dict[str, int] = None,
287
+ do_rescale: bool = None,
288
+ rescale_factor: float = None,
289
+ do_normalize: bool = None,
290
+ image_mean: Optional[Union[float, List[float]]] = None,
291
+ image_std: Optional[Union[float, List[float]]] = None,
292
+ is_mixed: bool = False,
293
+ return_tensors: Optional[Union[str, TensorType]] = None,
294
+ data_format: ChannelDimension = ChannelDimension.FIRST,
295
+ input_data_format: Optional[Union[str, ChannelDimension]] = None,
296
+ **kwargs,
297
+ ) -> BatchFeature:
298
+ """
299
+ Preprocess an videos or image or batch of videos or images.
300
+
301
+ Args:
302
+ videos (`ImageInput`):
303
+ Images or videos to preprocess. Expects a single or batch of frames with pixel values ranging from 0 to
304
+ 255. If passing in frames with pixel values between 0 and 1, set `do_rescale=False`.
305
+ do_resize (`bool`, *optional*, defaults to `self.do_resize`):
306
+ Whether to resize the image.
307
+ size (`Dict[str, int]`, *optional*, defaults to `self.size`):
308
+ Size of the image after applying resize.
309
+ patch_size (`List[int]` *optional*, defaults to self.patch_size):
310
+ The patch size of image patch embedding.
311
+ num_frames (`int` *optional*, defaults to self.num_frames):
312
+ The maximum number of video frames.
313
+ resample (`PILImageResampling`, *optional*, defaults to `self.resample`):
314
+ Resampling filter to use if resizing the image. This can be one of the enum `PILImageResampling`, Only
315
+ has an effect if `do_resize` is set to `True`.
316
+ do_center_crop (`bool`, *optional*, defaults to `self.do_centre_crop`):
317
+ Whether to centre crop the image.
318
+ crop_size (`Dict[str, int]`, *optional*, defaults to `self.crop_size`):
319
+ Size of the image after applying the centre crop.
320
+ do_rescale (`bool`, *optional*, defaults to `self.do_rescale`):
321
+ Whether to rescale the image values between [0 - 1].
322
+ rescale_factor (`float`, *optional*, defaults to `self.rescale_factor`):
323
+ Rescale factor to rescale the image by if `do_rescale` is set to `True`.
324
+ do_normalize (`bool`, *optional*, defaults to `self.do_normalize`):
325
+ Whether to normalize the image.
326
+ image_mean (`float` or `List[float]`, *optional*, defaults to `self.image_mean`):
327
+ Image mean.
328
+ image_std (`float` or `List[float]`, *optional*, defaults to `self.image_std`):
329
+ Image standard deviation.
330
+ is_mixed (`bool`, *optional*):
331
+ If the input video has negative samples.
332
+ return_tensors (`str` or `TensorType`, *optional*):
333
+ The type of tensors to return. Can be one of:
334
+ - Unset: Return a list of `np.ndarray`.
335
+ - `TensorType.TENSORFLOW` or `'tf'`: Return a batch of type `tf.Tensor`.
336
+ - `TensorType.PYTORCH` or `'pt'`: Return a batch of type `torch.Tensor`.
337
+ - `TensorType.NUMPY` or `'np'`: Return a batch of type `np.ndarray`.
338
+ - `TensorType.JAX` or `'jax'`: Return a batch of type `jax.numpy.ndarray`.
339
+ data_format (`ChannelDimension` or `str`, *optional*, defaults to `ChannelDimension.FIRST`):
340
+ The channel dimension format for the output image. Can be one of:
341
+ - `ChannelDimension.FIRST`: image in (num_channels, height, width) format.
342
+ - `ChannelDimension.LAST`: image in (height, width, num_channels) format.
343
+ - Unset: Use the inferred channel dimension format of the input image.
344
+ input_data_format (`ChannelDimension` or `str`, *optional*):
345
+ The channel dimension format for the input image. If unset, the channel dimension format is inferred
346
+ from the input image. Can be one of:
347
+ - `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format.
348
+ - `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format.
349
+ - `"none"` or `ChannelDimension.NONE`: image in (height, width) format.
350
+
351
+ Returns:
352
+ [`BatchFeature`]: A [`BatchFeature`] with the following fields:
353
+
354
+ - **pixel_values** -- Pixel values to be fed to a model, of shape (batch_size, num_channels, height,
355
+ width).
356
+
357
+ - **pixel_mask** -- Pixel masks to be fed to a model, of shape (batch_size, num_pixel_patches).
358
+
359
+ - **pixel_values_mixed** -- Pixel values with both postive or negative to be fed to a model, of shape
360
+ (batch_size, num_channels, height, width).
361
+
362
+ - **pixel_mask_mixed** -- Pixel masks with both postive or negative to be fed to a model, of shape
363
+ (batch_size, num_pixel_patches).
364
+ """
365
+ do_resize = do_resize if do_resize is not None else self.do_resize
366
+ resample = resample if resample is not None else self.resample
367
+ do_center_crop = do_center_crop if do_center_crop is not None else self.do_center_crop
368
+ do_rescale = do_rescale if do_rescale is not None else self.do_rescale
369
+ rescale_factor = rescale_factor if rescale_factor is not None else self.rescale_factor
370
+ do_normalize = do_normalize if do_normalize is not None else self.do_normalize
371
+ image_mean = image_mean if image_mean is not None else self.image_mean
372
+ image_std = image_std if image_std is not None else self.image_std
373
+
374
+ size = size if size is not None else self.size
375
+ size = get_size_dict(size, default_to_square=False)
376
+ crop_size = crop_size if crop_size is not None else self.crop_size
377
+ crop_size = get_size_dict(crop_size, param_name="crop_size")
378
+ patch_size = patch_size if patch_size is not None else self.patch_size
379
+ num_frames = num_frames if patch_size is not None else self.num_frames
380
+
381
+ validate_kwargs(captured_kwargs=kwargs.keys(), valid_processor_keys=self._valid_processor_keys)
382
+
383
+ if not valid_images(videos):
384
+ raise ValueError(
385
+ "Invalid image or video type. Must be of type PIL.Image.Image, numpy.ndarray, "
386
+ "torch.Tensor, tf.Tensor or jax.ndarray."
387
+ )
388
+
389
+ videos = make_batched(videos)
390
+
391
+ # Check number of frames is fewer than maximum frames
392
+ for video in videos:
393
+ if len(video) > self.num_frames:
394
+ raise ValueError(
395
+ f"number of frames must not be greater than the maximum frames of the model {self.num_frames}."
396
+ )
397
+
398
+ max_num_frames = max([len(video) for video in videos])
399
+ num_patches_per_image = (size["shortest_edge"] // patch_size[0]) ** 2
400
+ video_masks = np.array(
401
+ [
402
+ len(video) * num_patches_per_image * [1] + (max_num_frames - len(video)) * num_patches_per_image * [0]
403
+ for video in videos
404
+ ]
405
+ )
406
+
407
+ videos = [
408
+ [
409
+ self._preprocess_image(
410
+ image=img,
411
+ do_resize=do_resize,
412
+ size=size,
413
+ resample=resample,
414
+ do_center_crop=do_center_crop,
415
+ crop_size=crop_size,
416
+ do_rescale=do_rescale,
417
+ rescale_factor=rescale_factor,
418
+ do_normalize=do_normalize,
419
+ image_mean=image_mean,
420
+ image_std=image_std,
421
+ data_format=data_format,
422
+ input_data_format=input_data_format,
423
+ )
424
+ for img in video
425
+ ]
426
+ for video in videos
427
+ ]
428
+
429
+ # If videos contain both positive/negative, use mixed key for video-audio matching task
430
+ if is_mixed:
431
+ data = {"pixel_values_mixed": videos, "pixel_mask_mixed": video_masks}
432
+ else:
433
+ data = {"pixel_values": videos, "pixel_mask": video_masks}
434
+
435
+ return BatchFeature(data=data, tensor_type=return_tensors)
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/tvlt/modeling_tvlt.py ADDED
@@ -0,0 +1,1288 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2023 MURGe-Lab 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 TVLT model."""
16
+
17
+ import collections.abc
18
+ import math
19
+ from copy import deepcopy
20
+ from dataclasses import dataclass
21
+ from typing import Optional, Tuple, Union
22
+
23
+ import torch
24
+ import torch.utils.checkpoint
25
+ from torch import nn
26
+ from torch.nn import BCEWithLogitsLoss, CrossEntropyLoss, MSELoss
27
+
28
+ from ....activations import ACT2FN
29
+ from ....modeling_outputs import BaseModelOutput, SequenceClassifierOutput
30
+ from ....modeling_utils import PreTrainedModel
31
+ from ....pytorch_utils import find_pruneable_heads_and_indices, prune_linear_layer
32
+ from ....utils import (
33
+ ModelOutput,
34
+ add_start_docstrings,
35
+ add_start_docstrings_to_model_forward,
36
+ logging,
37
+ replace_return_docstrings,
38
+ )
39
+ from .configuration_tvlt import TvltConfig
40
+
41
+
42
+ logger = logging.get_logger(__name__)
43
+
44
+ _CONFIG_FOR_DOC = "TvltConfig"
45
+ _CHECKPOINT_FOR_DOC = "ZinengTang/tvlt-base"
46
+
47
+
48
+ @dataclass
49
+ class TvltModelOutput(ModelOutput):
50
+ """
51
+ Class for TvltModel's outputs, with potential hidden states and attentions.
52
+
53
+ Args:
54
+ last_hidden_state (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`):
55
+ Sequence of hidden-states at the output of the last layer of the model.
56
+ last_pixel_hidden_state (`torch.FloatTensor` of shape `(batch_size, pixel_sequence_length, hidden_size)`):
57
+ Pixel sequence of hidden-states at the output of the last layer of the model.
58
+ last_audio_hidden_state (`torch.FloatTensor` of shape `(batch_size, audio_sequence_length, hidden_size)`):
59
+ Audio sequence of hidden-states at the output of the last layer of the model.
60
+ pixel_label_masks (`torch.FloatTensor` of shape `(batch_size, pixel_patch_length)`):
61
+ Tensor indicating which pixel patches are masked (1) and which are not (0).
62
+ audio_label_masks (`torch.FloatTensor` of shape `(batch_size, audio_patch_length)`):
63
+ Tensor indicating which audio patches are masked (1) and which are not (0).
64
+ pixel_ids_restore (`torch.LongTensor` of shape `(batch_size, pixel_patch_length)`):
65
+ Tensor containing the ids permutation of pixel masking.
66
+ audio_ids_restore (`torch.LongTensor` of shape `(batch_size, audio_patch_length)`):
67
+ Tensor containing the ids permutation of audio masking.
68
+ hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
69
+ Tuple of `torch.FloatTensor` (one for the output of the embeddings and one for the output of each layer) of
70
+ shape `(batch_size, sequence_length, hidden_size)`. Hidden-states of the model at the output of each layer
71
+ plus the initial embedding outputs.
72
+ attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
73
+ Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
74
+ sequence_length)`. Attentions weights after the attention softmax, used to compute the weighted average in
75
+ the self-attention heads.
76
+ """
77
+
78
+ last_hidden_state: torch.FloatTensor = None
79
+ last_pixel_hidden_state: torch.FloatTensor = None
80
+ last_audio_hidden_state: torch.FloatTensor = None
81
+ pixel_label_masks: torch.LongTensor = None
82
+ audio_label_masks: torch.LongTensor = None
83
+ pixel_ids_restore: torch.LongTensor = None
84
+ audio_ids_restore: torch.LongTensor = None
85
+ hidden_states: Optional[Tuple[torch.FloatTensor, ...]] = None
86
+ attentions: Optional[Tuple[torch.FloatTensor, ...]] = None
87
+
88
+
89
+ @dataclass
90
+ class TvltDecoderOutput(ModelOutput):
91
+ """
92
+ Class for TvltDecoder's outputs, with potential hidden states and attentions.
93
+
94
+ Args:
95
+ logits (`torch.FloatTensor` of shape `(batch_size, patch_size ** 2 * num_channels)`):
96
+ Pixel reconstruction logits.
97
+ hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
98
+ Tuple of `torch.FloatTensor` (one for the output of the embeddings and one for the output of each layer) of
99
+ shape `(batch_size, sequence_length, hidden_size)`. Hidden-states of the model at the output of each layer
100
+ plus the initial embedding outputs.
101
+ attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
102
+ Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
103
+ sequence_length)`. Attentions weights after the attention softmax, used to compute the weighted average in
104
+ the self-attention heads.
105
+ """
106
+
107
+ logits: torch.FloatTensor = None
108
+ hidden_states: Optional[Tuple[torch.FloatTensor, ...]] = None
109
+ attentions: Optional[Tuple[torch.FloatTensor, ...]] = None
110
+
111
+
112
+ @dataclass
113
+ class TvltForPreTrainingOutput(ModelOutput):
114
+ """
115
+ Class for TvltForPreTraining's outputs, with potential hidden states and attentions.
116
+
117
+ Args:
118
+ loss (`torch.FloatTensor` of shape `(1,)`):
119
+ Pixel reconstruction loss.
120
+ matching_logits (`torch.FloatTensor` of shape `(batch_size, 1)`):
121
+ Matching objective logits.
122
+ pixel_logits (`torch.FloatTensor` of shape
123
+ `(batch_size, pixel_patch_length, image_patch_size ** 3 * pixel_num_channels)`): Pixel reconstruction
124
+ logits.
125
+ audio_logits (`torch.FloatTensor` of shape
126
+ `(batch_size, audio_patch_length, image_patch_size[0] * image_patch_size[1])`): Audio reconstruction
127
+ logits.
128
+ hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
129
+ Tuple of `torch.FloatTensor` (one for the output of the embeddings and one for the output of each layer) of
130
+ shape `(batch_size, sequence_length, hidden_size)`. Hidden-states of the model at the output of each layer
131
+ plus the initial embedding outputs.
132
+ attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
133
+ Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
134
+ sequence_length)`. Attentions weights after the attention softmax, used to compute the weighted average in
135
+ the self-attention heads.
136
+ """
137
+
138
+ loss: Optional[torch.FloatTensor] = None
139
+ matching_logits: torch.FloatTensor = None
140
+ pixel_logits: torch.FloatTensor = None
141
+ audio_logits: torch.FloatTensor = None
142
+ hidden_states: Optional[Tuple[torch.FloatTensor, ...]] = None
143
+ attentions: Optional[Tuple[torch.FloatTensor, ...]] = None
144
+
145
+
146
+ def generate_pixel_mask_noise(pixel_values, pixel_mask=None, mask_ratio=0.75):
147
+ """Generate noise for audio masking."""
148
+
149
+ batch_size, seq_len = pixel_values.shape[:2]
150
+ noise = torch.rand((batch_size, seq_len), device=pixel_values.device) # noise in [0, 1]
151
+ len_keep = int(seq_len * (1 - mask_ratio))
152
+ return noise, len_keep
153
+
154
+
155
+ def generate_audio_mask_noise(audio_values, audio_mask=None, mask_ratio=0.75, mask_type="patch-level", freq_len=8):
156
+ """Generate noise for audio masking."""
157
+
158
+ batch_size, seq_len = audio_values.shape[:2]
159
+ if mask_type == "frame-level":
160
+ num_time_patches = seq_len // freq_len
161
+ noise = (
162
+ torch.rand(batch_size, num_time_patches, device=audio_values.device)
163
+ .unsqueeze(-1)
164
+ .repeat(1, 1, freq_len)
165
+ .view(batch_size, seq_len)
166
+ ) # noise in [0, 1]
167
+ elif mask_type == "patch-level":
168
+ noise = torch.rand(batch_size, seq_len, device=audio_values.device) # noise in [0, 1]
169
+ len_keep = int(seq_len * (1 - mask_ratio))
170
+ return noise, len_keep
171
+
172
+
173
+ def random_masking(sequence, noise, len_keep, attention_masks=None):
174
+ """
175
+ Perform random masking by per-sample shuffling on frame-level. Per-sample shuffling is done by argsort random
176
+ noise. sequence: [batch_size, seq_len, hidden_dim], sequence
177
+ """
178
+
179
+ batch_size, seq_len, hidden_dim = sequence.shape
180
+
181
+ # sort noise for each sample
182
+ ids_shuffle = torch.argsort(noise, dim=1) # ascend: small is keep, large is remove
183
+ ids_restore = torch.argsort(ids_shuffle, dim=1)
184
+
185
+ # keep the first subset
186
+ ids_keep = ids_shuffle[:, :len_keep]
187
+ sequence_masked = torch.gather(sequence, dim=1, index=ids_keep.unsqueeze(-1).repeat(1, 1, hidden_dim))
188
+
189
+ # generate the binary mask: 0 is keep, 1 is remove
190
+ label_masks = torch.ones([batch_size, seq_len], device=sequence.device)
191
+ label_masks[:, :len_keep] = 0
192
+ # unshuffle to get the binary mask
193
+ label_masks = torch.gather(label_masks, dim=1, index=ids_restore)
194
+
195
+ if attention_masks is not None:
196
+ label_masks *= attention_masks
197
+ attention_masks = torch.gather(attention_masks, dim=1, index=ids_keep)
198
+
199
+ return sequence_masked, attention_masks, label_masks, ids_restore
200
+
201
+
202
+ class TvltPixelEmbeddings(nn.Module):
203
+ """Construct the patch and position embeddings."""
204
+
205
+ def __init__(self, config):
206
+ super().__init__()
207
+
208
+ self.patch_embeddings = TvltPixelPatchEmbeddings(config)
209
+ self.num_patches_per_image = self.patch_embeddings.num_patches_per_image
210
+
211
+ self.type_embed_v = nn.Parameter(torch.zeros(1, 1, config.hidden_size))
212
+ self.temporal_embed = nn.Parameter(torch.zeros(1, config.num_frames, config.hidden_size))
213
+ self.pos_embed_v = nn.Parameter(torch.zeros(1, self.num_patches_per_image, config.hidden_size))
214
+
215
+ self.config = config
216
+
217
+ def forward(self, pixel_values, attention_masks=None):
218
+ # create patch embeddings
219
+ batch_size, num_frames, num_channels, height, width = pixel_values.shape
220
+
221
+ embeddings = self.patch_embeddings(pixel_values)
222
+ embeddings += self.pos_embed_v.repeat(1, num_frames, 1)
223
+ embeddings += torch.repeat_interleave(self.temporal_embed[:, :num_frames], self.num_patches_per_image, dim=1)
224
+ embeddings += self.type_embed_v
225
+
226
+ return embeddings, attention_masks
227
+
228
+
229
+ class TvltAudioEmbeddings(nn.Module):
230
+ """Construct the patch and position embeddings."""
231
+
232
+ def __init__(self, config):
233
+ super().__init__()
234
+
235
+ self.patch_embeddings = TvltAudioPatchEmbeddings(config)
236
+ self.num_patches = self.patch_embeddings.num_patches
237
+
238
+ self.type_embed_a = nn.Parameter(torch.zeros(1, 1, config.hidden_size))
239
+ self.num_freq_patches = config.frequency_length // config.audio_patch_size[1]
240
+ self.pos_embed_a = nn.Parameter(torch.zeros(1, self.num_patches // self.num_freq_patches, config.hidden_size))
241
+ self.freq_embed = nn.Parameter(torch.zeros(1, self.num_freq_patches, config.hidden_size))
242
+
243
+ self.num_freq_patches = config.frequency_length // config.audio_patch_size[1]
244
+ self.config = config
245
+
246
+ def forward(self, audio_values, attention_masks=None):
247
+ # create patch embeddings
248
+ embeddings = self.patch_embeddings(audio_values)
249
+
250
+ num_time_patches = embeddings.size(1) // self.num_freq_patches
251
+ embeddings += self.freq_embed.repeat(1, num_time_patches, 1)
252
+ embeddings += torch.repeat_interleave(self.pos_embed_a[:, :num_time_patches], self.num_freq_patches, dim=1)
253
+ embeddings += self.type_embed_a
254
+
255
+ return embeddings, attention_masks
256
+
257
+
258
+ class TvltPixelPatchEmbeddings(nn.Module):
259
+ """
260
+ This class turns `pixel_values` of shape `(batch_size, num_channels, height, width)` into the initial
261
+ `hidden_states` (patch embeddings) of shape `(batch_size, seq_length, hidden_size)` to be consumed by a
262
+ Transformer.
263
+ """
264
+
265
+ def __init__(self, config):
266
+ super().__init__()
267
+ image_size, patch_size = config.image_size, config.image_patch_size
268
+ num_channels, hidden_size = config.num_image_channels, config.hidden_size
269
+
270
+ image_size = image_size if isinstance(image_size, collections.abc.Iterable) else (image_size, image_size)
271
+ patch_size = patch_size if isinstance(patch_size, collections.abc.Iterable) else (patch_size, patch_size)
272
+ num_patches_per_image = (image_size[1] // patch_size[1]) * (image_size[0] // patch_size[0])
273
+ self.image_size = image_size
274
+ self.patch_size = patch_size
275
+ self.num_channels = num_channels
276
+ self.num_patches_per_image = num_patches_per_image
277
+ self.hidden_size = hidden_size
278
+
279
+ self.projection = nn.Conv2d(num_channels, hidden_size, kernel_size=patch_size, stride=patch_size)
280
+
281
+ def forward(self, pixel_values: torch.Tensor) -> torch.Tensor:
282
+ batch_size, num_frames, num_channels, height, width = pixel_values.shape
283
+ if num_channels != self.num_channels:
284
+ raise ValueError(
285
+ "Make sure that the channel dimension of the pixel values match with the one set in the configuration."
286
+ )
287
+ if height != self.image_size[0] or width != self.image_size[1]:
288
+ raise ValueError(
289
+ f"Input image size ({height}*{width}) doesn't match model ({self.image_size[0]}*{self.image_size[1]})."
290
+ )
291
+
292
+ pixel_values = pixel_values.reshape(batch_size * num_frames, num_channels, height, width)
293
+ embeddings = self.projection(pixel_values).flatten(2).transpose(1, 2)
294
+ embeddings = embeddings.reshape(batch_size, num_frames * self.num_patches_per_image, self.hidden_size)
295
+
296
+ return embeddings
297
+
298
+
299
+ class TvltAudioPatchEmbeddings(nn.Module):
300
+ """
301
+ This class turns `audio_values` of shape `(batch_size, num_channels, height, width)` into the initial
302
+ `hidden_states` (patch embeddings) of shape `(batch_size, seq_length, hidden_size)` to be consumed by a
303
+ Transformer.
304
+ """
305
+
306
+ def __init__(self, config):
307
+ super().__init__()
308
+ spectrogram_length, frequency_length, patch_size = (
309
+ config.spectrogram_length,
310
+ config.frequency_length,
311
+ config.audio_patch_size,
312
+ )
313
+ num_channels, hidden_size = config.num_audio_channels, config.hidden_size
314
+
315
+ spectrogram_size = (spectrogram_length, frequency_length)
316
+ patch_size = patch_size if isinstance(patch_size, collections.abc.Iterable) else (patch_size, patch_size)
317
+ num_patches = (spectrogram_size[1] // patch_size[1]) * (spectrogram_size[0] // patch_size[0])
318
+ patch_shape = (spectrogram_size[0] // patch_size[0], spectrogram_size[1] // patch_size[1])
319
+ self.spectrogram_size = spectrogram_size
320
+ self.patch_size = patch_size
321
+ self.num_channels = num_channels
322
+ self.num_patches = num_patches
323
+ self.patch_shape = patch_shape
324
+
325
+ self.projection = nn.Conv2d(num_channels, hidden_size, kernel_size=patch_size, stride=patch_size)
326
+
327
+ def forward(self, audio_values: torch.Tensor) -> torch.Tensor:
328
+ batch_size, num_channels, height, width = audio_values.shape
329
+ if num_channels != self.num_channels:
330
+ raise ValueError(
331
+ "Make sure that the channel dimension of the pixel values match with the one set in the configuration."
332
+ )
333
+ if height > self.spectrogram_size[0] or width != self.spectrogram_size[1]:
334
+ raise ValueError(
335
+ f"Input audio size ({height}*{width}) doesn't match model"
336
+ f" ({self.spectrogram_size[0]}*{self.spectrogram_size[1]})."
337
+ )
338
+ embeddings = self.projection(audio_values).flatten(2).transpose(1, 2)
339
+
340
+ return embeddings
341
+
342
+
343
+ class TvltSelfAttention(nn.Module):
344
+ def __init__(self, config):
345
+ super().__init__()
346
+ if config.hidden_size % config.num_attention_heads != 0 and not hasattr(config, "embedding_size"):
347
+ raise ValueError(
348
+ f"The hidden size {config.hidden_size} is not a multiple of the number of attention "
349
+ f"heads {config.num_attention_heads}."
350
+ )
351
+
352
+ self.num_attention_heads = config.num_attention_heads
353
+ self.attention_head_size = int(config.hidden_size / config.num_attention_heads)
354
+ self.all_head_size = self.num_attention_heads * self.attention_head_size
355
+
356
+ self.query = nn.Linear(config.hidden_size, self.all_head_size, bias=config.qkv_bias)
357
+ self.key = nn.Linear(config.hidden_size, self.all_head_size, bias=config.qkv_bias)
358
+ self.value = nn.Linear(config.hidden_size, self.all_head_size, bias=config.qkv_bias)
359
+
360
+ self.dropout = nn.Dropout(config.attention_probs_dropout_prob)
361
+
362
+ def transpose_for_scores(self, x):
363
+ new_x_shape = x.size()[:-1] + (self.num_attention_heads, self.attention_head_size)
364
+ x = x.view(*new_x_shape)
365
+ return x.permute(0, 2, 1, 3)
366
+
367
+ def forward(self, hidden_states, attention_mask=None, head_mask=None, output_attentions=False):
368
+ mixed_query_layer = self.query(hidden_states)
369
+
370
+ key_layer = self.transpose_for_scores(self.key(hidden_states))
371
+ value_layer = self.transpose_for_scores(self.value(hidden_states))
372
+ query_layer = self.transpose_for_scores(mixed_query_layer)
373
+
374
+ # Take the dot product between "query" and "key" to get the raw attention scores.
375
+ attention_scores = torch.matmul(query_layer, key_layer.transpose(-1, -2))
376
+ attention_scores = attention_scores / math.sqrt(self.attention_head_size)
377
+ if attention_mask is not None:
378
+ # Apply the attention mask is (precomputed for all layers in BertModel forward() function)
379
+ attention_scores = attention_scores + attention_mask
380
+
381
+ # Normalize the attention scores to probabilities.
382
+ attention_probs = nn.Softmax(dim=-1)(attention_scores)
383
+
384
+ # This is actually dropping out entire tokens to attend to, which might
385
+ # seem a bit unusual, but is taken from the original Transformer paper.
386
+ attention_probs = self.dropout(attention_probs)
387
+
388
+ # Mask heads if we want to
389
+ if head_mask is not None:
390
+ attention_probs = attention_probs * head_mask
391
+
392
+ context_layer = torch.matmul(attention_probs, value_layer)
393
+
394
+ context_layer = context_layer.permute(0, 2, 1, 3).contiguous()
395
+ new_context_layer_shape = context_layer.size()[:-2] + (self.all_head_size,)
396
+ context_layer = context_layer.view(*new_context_layer_shape)
397
+
398
+ outputs = (context_layer, attention_probs) if output_attentions else (context_layer,)
399
+
400
+ return outputs
401
+
402
+
403
+ class TvltSelfOutput(nn.Module):
404
+ """
405
+ The residual connection is defined in TvltLayer instead of here (as is the case with other models), due to the
406
+ layernorm applied before each block.
407
+ """
408
+
409
+ def __init__(self, config: TvltConfig) -> None:
410
+ super().__init__()
411
+ self.dense = nn.Linear(config.hidden_size, config.hidden_size)
412
+ self.dropout = nn.Dropout(config.hidden_dropout_prob)
413
+
414
+ def forward(self, hidden_states: torch.Tensor, input_tensor: torch.Tensor) -> torch.Tensor:
415
+ hidden_states = self.dense(hidden_states)
416
+ hidden_states = self.dropout(hidden_states)
417
+
418
+ return hidden_states
419
+
420
+
421
+ class TvltAttention(nn.Module):
422
+ def __init__(self, config):
423
+ super().__init__()
424
+ self.attention = TvltSelfAttention(config)
425
+ self.output = TvltSelfOutput(config)
426
+ self.pruned_heads = set()
427
+
428
+ def prune_heads(self, heads):
429
+ if len(heads) == 0:
430
+ return
431
+ heads, index = find_pruneable_heads_and_indices(
432
+ heads, self.attention.num_attention_heads, self.attention.attention_head_size, self.pruned_heads
433
+ )
434
+
435
+ # Prune linear layers
436
+ self.attention.query = prune_linear_layer(self.attention.query, index)
437
+ self.attention.key = prune_linear_layer(self.attention.key, index)
438
+ self.attention.value = prune_linear_layer(self.attention.value, index)
439
+ self.output.dense = prune_linear_layer(self.output.dense, index, dim=1)
440
+
441
+ # Update hyper params and store pruned heads
442
+ self.attention.num_attention_heads = self.attention.num_attention_heads - len(heads)
443
+ self.attention.all_head_size = self.attention.attention_head_size * self.attention.num_attention_heads
444
+ self.pruned_heads = self.pruned_heads.union(heads)
445
+
446
+ def forward(self, hidden_states, attention_mask=None, head_mask=None, output_attentions=False):
447
+ self_outputs = self.attention(hidden_states, attention_mask, head_mask, output_attentions)
448
+
449
+ attention_output = self.output(self_outputs[0], hidden_states)
450
+
451
+ outputs = (attention_output,) + self_outputs[1:] # add attentions if we output them
452
+ return outputs
453
+
454
+
455
+ class TvltIntermediate(nn.Module):
456
+ def __init__(self, config: TvltConfig) -> None:
457
+ super().__init__()
458
+ self.dense = nn.Linear(config.hidden_size, config.intermediate_size)
459
+ if isinstance(config.hidden_act, str):
460
+ self.intermediate_act_fn = ACT2FN[config.hidden_act]
461
+ else:
462
+ self.intermediate_act_fn = config.hidden_act
463
+
464
+ def forward(self, hidden_states: torch.Tensor) -> torch.Tensor:
465
+ hidden_states = self.dense(hidden_states)
466
+ hidden_states = self.intermediate_act_fn(hidden_states)
467
+
468
+ return hidden_states
469
+
470
+
471
+ class TvltOutput(nn.Module):
472
+ def __init__(self, config: TvltConfig) -> None:
473
+ super().__init__()
474
+ self.dense = nn.Linear(config.intermediate_size, config.hidden_size)
475
+ self.dropout = nn.Dropout(config.hidden_dropout_prob)
476
+
477
+ def forward(self, hidden_states: torch.Tensor, input_tensor: torch.Tensor) -> torch.Tensor:
478
+ hidden_states = self.dense(hidden_states)
479
+ hidden_states = self.dropout(hidden_states)
480
+
481
+ hidden_states = hidden_states + input_tensor
482
+
483
+ return hidden_states
484
+
485
+
486
+ class TvltLayer(nn.Module):
487
+ """This corresponds to the Block class in the timm implementation."""
488
+
489
+ def __init__(self, config):
490
+ super().__init__()
491
+ self.chunk_size_feed_forward = config.chunk_size_feed_forward
492
+ self.seq_len_dim = 1
493
+ self.attention = TvltAttention(config)
494
+ self.intermediate = TvltIntermediate(config)
495
+ self.output = TvltOutput(config)
496
+ self.layernorm_before = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps)
497
+ self.layernorm_after = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps)
498
+
499
+ def forward(self, hidden_states, attention_mask=None, head_mask=None, output_attentions=False):
500
+ self_attention_outputs = self.attention(
501
+ self.layernorm_before(hidden_states), # in ViLT, layernorm is applied before self-attention
502
+ attention_mask,
503
+ head_mask,
504
+ output_attentions=output_attentions,
505
+ )
506
+ attention_output = self_attention_outputs[0]
507
+ outputs = self_attention_outputs[1:] # add self attentions if we output attention weights
508
+
509
+ # first residual connection
510
+ hidden_states = attention_output + hidden_states.to(attention_output.device)
511
+
512
+ # in ViLT, layernorm is also applied after self-attention
513
+ layer_output = self.layernorm_after(hidden_states)
514
+ layer_output = self.intermediate(layer_output)
515
+
516
+ # second residual connection is done here
517
+ layer_output = self.output(layer_output, hidden_states)
518
+
519
+ outputs = (layer_output,) + outputs
520
+
521
+ return outputs
522
+
523
+
524
+ class TvltEncoder(nn.Module):
525
+ def __init__(self, config):
526
+ super().__init__()
527
+ self.config = config
528
+ self.layer = nn.ModuleList([TvltLayer(config) for _ in range(config.num_hidden_layers)])
529
+ self.gradient_checkpointing = False
530
+
531
+ def forward(
532
+ self,
533
+ hidden_states,
534
+ attention_mask=None,
535
+ head_mask=None,
536
+ output_attentions=False,
537
+ output_hidden_states=False,
538
+ return_dict=True,
539
+ ):
540
+ all_hidden_states = () if output_hidden_states else None
541
+ all_self_attentions = () if output_attentions else None
542
+
543
+ for i, layer_module in enumerate(self.layer):
544
+ if output_hidden_states:
545
+ all_hidden_states = all_hidden_states + (hidden_states,)
546
+
547
+ layer_head_mask = head_mask[i] if head_mask is not None else None
548
+
549
+ if self.gradient_checkpointing and self.training:
550
+ layer_outputs = self._gradient_checkpointing_func(
551
+ layer_module.__call__,
552
+ hidden_states,
553
+ attention_mask,
554
+ layer_head_mask,
555
+ output_attentions,
556
+ )
557
+ else:
558
+ layer_outputs = layer_module(hidden_states, attention_mask, layer_head_mask, output_attentions)
559
+
560
+ hidden_states = layer_outputs[0]
561
+
562
+ if output_attentions:
563
+ all_self_attentions = all_self_attentions + (layer_outputs[1],)
564
+
565
+ if output_hidden_states:
566
+ all_hidden_states = all_hidden_states + (hidden_states,)
567
+
568
+ if not return_dict:
569
+ return tuple(v for v in [hidden_states, all_hidden_states, all_self_attentions] if v is not None)
570
+ return BaseModelOutput(
571
+ last_hidden_state=hidden_states,
572
+ hidden_states=all_hidden_states,
573
+ attentions=all_self_attentions,
574
+ )
575
+
576
+
577
+ class TvltPreTrainedModel(PreTrainedModel):
578
+ """
579
+ An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained
580
+ models.
581
+ """
582
+
583
+ config_class = TvltConfig
584
+ base_model_prefix = "tvlt"
585
+ main_input_name = "pixel_values"
586
+ supports_gradient_checkpointing = True
587
+
588
+ def _init_weights(self, module):
589
+ """Initialize the weights"""
590
+ if isinstance(module, (nn.Linear, nn.Conv2d)):
591
+ # Slightly different from the TF version which uses truncated_normal for initialization
592
+ # cf https://github.com/pytorch/pytorch/pull/5617
593
+ module.weight.data.normal_(mean=0.0, std=self.config.initializer_range)
594
+ if module.bias is not None:
595
+ module.bias.data.zero_()
596
+ elif isinstance(module, nn.LayerNorm):
597
+ module.bias.data.zero_()
598
+ module.weight.data.fill_(1.0)
599
+
600
+
601
+ TVLT_START_DOCSTRING = r"""
602
+ This model is a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass. Use it
603
+ as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage and
604
+ behavior.
605
+
606
+ Parameters:
607
+ config ([`TvltConfig`]): Model configuration class with all the parameters of the model.
608
+ Initializing with a config file does not load the weights associated with the model, only the
609
+ configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights.
610
+ """
611
+
612
+ TVLT_INPUTS_DOCSTRING = r"""
613
+ Args:
614
+ pixel_values (`torch.FloatTensor` of shape `(batch_size, num_frames, num_channels, height, width)`):
615
+ Pixel values. Pixel values can be obtained using [`TvltProcessor`]. See [`TvltProcessor.__call__`] for
616
+ details.
617
+
618
+ audio_values (`torch.FloatTensor` of shape `(batch_size, num_channels, height, width)`):
619
+ Audio values. Audio values can be obtained using [`TvltProcessor`]. See [`TvltProcessor.__call__`] for
620
+ details.
621
+
622
+ pixel_mask (`torch.FloatTensor` of shape `(batch_size, num_pixel_patches)`):
623
+ Pixel masks. Pixel masks can be obtained using [`TvltProcessor`]. See [`TvltProcessor.__call__`] for
624
+ details.
625
+
626
+ audio_mask (`torch.FloatTensor` of shape `(batch_size, num_audio_patches)`):
627
+ Audio masks. Audio masks can be obtained using [`TvltProcessor`]. See [`TvltProcessor.__call__`] for
628
+ details.
629
+
630
+ pixel_values_mixed (`torch.FloatTensor` of shape `(batch_size, num_frames, num_channels, height, width)`):
631
+ Pixel values that mix positive and negative samples in Tvlt vision-audio matching. Pixel values mixed can
632
+ be obtained using [`TvltProcessor`]. See [`TvltProcessor.__call__`] for details.
633
+
634
+ pixel_mask_mixed (`torch.FloatTensor` of shape `(batch_size, num_channels, height, width)`):
635
+ Pixel masks of pixel_values_mixed. Pixel masks mixed can be obtained using [`TvltProcessor`]. See
636
+ [`TvltProcessor.__call__`] for details.
637
+
638
+ mask_pixel (`bool`, *optional*):
639
+ Whether to mask pixel for MAE tasks. Only set to True in TvltForPreTraining.
640
+
641
+ mask_audio (`bool`, *optional*):
642
+ Whether to mask audio for MAE tasks. Only set to True in TvltForPreTraining.
643
+
644
+ output_attentions (`bool`, *optional*):
645
+ Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned
646
+ tensors for more detail.
647
+
648
+ output_hidden_states (`bool`, *optional*):
649
+ Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
650
+ more detail.
651
+
652
+ return_dict (`bool`, *optional*):
653
+ Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
654
+ """
655
+
656
+
657
+ @add_start_docstrings(
658
+ "The bare TVLT Model transformer outputting raw hidden-states without any specific head on top.",
659
+ TVLT_START_DOCSTRING,
660
+ )
661
+ class TvltModel(TvltPreTrainedModel):
662
+ def __init__(self, config):
663
+ super().__init__(config)
664
+ self.config = config
665
+
666
+ self.pixel_embeddings = TvltPixelEmbeddings(config)
667
+ self.audio_embeddings = TvltAudioEmbeddings(config)
668
+ self.encoder = TvltEncoder(config)
669
+
670
+ self.cls_embedding = nn.Parameter(torch.zeros(1, 1, config.hidden_size))
671
+
672
+ if config.use_mean_pooling:
673
+ self.layernorm = None
674
+ else:
675
+ self.layernorm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps)
676
+
677
+ # Initialize weights and apply final processing
678
+ self.post_init()
679
+
680
+ def get_input_embeddings(self):
681
+ return self.pixel_embeddings.patch_embeddings, self.audio_embeddings.patch_embeddings
682
+
683
+ def _prune_heads(self, heads_to_prune):
684
+ """
685
+ Prunes heads of the model. heads_to_prune: dict of {layer_num: list of heads to prune in this layer} See base
686
+ class PreTrainedModel
687
+ """
688
+ for layer, heads in heads_to_prune.items():
689
+ self.encoder.layer[layer].attention.prune_heads(heads)
690
+
691
+ @add_start_docstrings_to_model_forward(TVLT_INPUTS_DOCSTRING)
692
+ @replace_return_docstrings(output_type=TvltModelOutput, config_class=_CONFIG_FOR_DOC)
693
+ def forward(
694
+ self,
695
+ pixel_values: torch.FloatTensor,
696
+ audio_values: torch.FloatTensor,
697
+ pixel_mask: Optional[torch.FloatTensor] = None,
698
+ audio_mask: Optional[torch.FloatTensor] = None,
699
+ mask_pixel: bool = False,
700
+ mask_audio: bool = False,
701
+ output_attentions: Optional[bool] = None,
702
+ output_hidden_states: Optional[bool] = None,
703
+ return_dict: Optional[bool] = None,
704
+ ) -> Union[Tuple[torch.FloatTensor], TvltModelOutput]:
705
+ r"""
706
+ Returns:
707
+
708
+ Examples:
709
+
710
+ ```python
711
+ >>> from transformers import TvltProcessor, TvltModel
712
+ >>> import numpy as np
713
+ >>> import torch
714
+
715
+ >>> num_frames = 8
716
+ >>> images = list(np.random.randn(num_frames, 3, 224, 224))
717
+ >>> audio = list(np.random.randn(10000))
718
+
719
+ >>> processor = TvltProcessor.from_pretrained("ZinengTang/tvlt-base")
720
+ >>> model = TvltModel.from_pretrained("ZinengTang/tvlt-base")
721
+
722
+ >>> input_dict = processor(images, audio, sampling_rate=44100, return_tensors="pt")
723
+
724
+ >>> outputs = model(**input_dict)
725
+ >>> loss = outputs.loss
726
+ ```"""
727
+
728
+ output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
729
+ output_hidden_states = (
730
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
731
+ )
732
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
733
+
734
+ pixel_embedding_output, pixel_mask = self.pixel_embeddings(pixel_values, pixel_mask)
735
+
736
+ audio_embedding_output, audio_mask = self.audio_embeddings(audio_values, audio_mask)
737
+
738
+ # Mask pixel if mask_pixel is True
739
+ pixel_label_masks = None
740
+ pixel_ids_restore = None
741
+ if mask_pixel:
742
+ pixel_mask_noise, pixel_len_keep = generate_pixel_mask_noise(
743
+ pixel_embedding_output, pixel_mask=pixel_mask, mask_ratio=self.config.pixel_mask_ratio
744
+ )
745
+ pixel_embedding_output, pixel_mask, pixel_label_masks, pixel_ids_restore = random_masking(
746
+ pixel_embedding_output,
747
+ pixel_mask_noise,
748
+ pixel_len_keep,
749
+ attention_masks=pixel_mask,
750
+ )
751
+
752
+ # Mask audio if mask_audio is True
753
+ audio_label_masks = None
754
+ audio_ids_restore = None
755
+ if mask_audio:
756
+ num_freq_patches = self.config.frequency_length // self.config.audio_patch_size[1]
757
+ audio_mask_noise, audio_len_keep = generate_audio_mask_noise(
758
+ audio_embedding_output,
759
+ audio_mask=audio_mask,
760
+ mask_ratio=self.config.audio_mask_ratio,
761
+ mask_type=self.config.audio_mask_type,
762
+ freq_len=num_freq_patches,
763
+ )
764
+ audio_embedding_output, audio_mask, audio_label_masks, audio_ids_restore = random_masking(
765
+ audio_embedding_output,
766
+ audio_mask_noise,
767
+ audio_len_keep,
768
+ attention_masks=audio_mask,
769
+ )
770
+
771
+ # Prepare for encoder inputs and attention masks
772
+ batch_size = pixel_values.size(0)
773
+ embedding_output = torch.cat(
774
+ [self.cls_embedding.repeat(batch_size, 1, 1), pixel_embedding_output, audio_embedding_output], 1
775
+ )
776
+ masked_pixel_len = pixel_embedding_output.size(1)
777
+
778
+ attention_mask = None
779
+ if pixel_mask is not None and audio_mask is not None:
780
+ attention_mask = torch.cat([pixel_mask[:, :1], pixel_mask, audio_mask], 1)
781
+
782
+ input_shape = embedding_output.size()
783
+ extended_attention_mask = None
784
+ if attention_mask is not None:
785
+ extended_attention_mask = self.get_extended_attention_mask(attention_mask, input_shape)
786
+
787
+ encoder_outputs = self.encoder(
788
+ embedding_output,
789
+ attention_mask=extended_attention_mask,
790
+ output_attentions=output_attentions,
791
+ output_hidden_states=output_hidden_states,
792
+ return_dict=return_dict,
793
+ )
794
+ sequence_output = encoder_outputs[0]
795
+ if self.layernorm is not None:
796
+ sequence_output = self.layernorm(sequence_output)
797
+
798
+ pixel_sequence_output = sequence_output[:, 1 : 1 + masked_pixel_len]
799
+ audio_sequence_output = sequence_output[:, 1 + masked_pixel_len :]
800
+ if not return_dict:
801
+ return (
802
+ sequence_output,
803
+ pixel_sequence_output,
804
+ audio_sequence_output,
805
+ pixel_label_masks,
806
+ audio_label_masks,
807
+ pixel_ids_restore,
808
+ audio_ids_restore,
809
+ ) + encoder_outputs[1:]
810
+
811
+ return TvltModelOutput(
812
+ last_hidden_state=sequence_output,
813
+ last_pixel_hidden_state=pixel_sequence_output,
814
+ last_audio_hidden_state=audio_sequence_output,
815
+ pixel_label_masks=pixel_label_masks,
816
+ audio_label_masks=audio_label_masks,
817
+ pixel_ids_restore=pixel_ids_restore,
818
+ audio_ids_restore=audio_ids_restore,
819
+ hidden_states=encoder_outputs.hidden_states,
820
+ attentions=encoder_outputs.attentions,
821
+ )
822
+
823
+
824
+ class TvltDecoder(nn.Module):
825
+ def __init__(self, config):
826
+ super().__init__()
827
+
828
+ decoder_config = deepcopy(config)
829
+ decoder_config.hidden_size = config.decoder_hidden_size
830
+ decoder_config.num_hidden_layers = config.decoder_num_hidden_layers
831
+ decoder_config.num_attention_heads = config.decoder_num_attention_heads
832
+ decoder_config.intermediate_size = config.decoder_intermediate_size
833
+ self.decoder_layers = nn.ModuleList(
834
+ [TvltLayer(decoder_config) for _ in range(config.decoder_num_hidden_layers)]
835
+ )
836
+
837
+ self.layernorm = nn.LayerNorm(config.decoder_hidden_size, eps=config.layer_norm_eps)
838
+
839
+ self.gradient_checkpointing = False
840
+ self.config = config
841
+
842
+ def forward(
843
+ self,
844
+ hidden_states,
845
+ output_attentions=False,
846
+ output_hidden_states=False,
847
+ return_dict=True,
848
+ ):
849
+ # apply Transformer layers (blocks)
850
+ all_hidden_states = () if output_hidden_states else None
851
+ all_self_attentions = () if output_attentions else None
852
+ for i, layer_module in enumerate(self.decoder_layers):
853
+ if output_hidden_states:
854
+ all_hidden_states = all_hidden_states + (hidden_states,)
855
+
856
+ if self.gradient_checkpointing and self.training:
857
+ layer_outputs = self._gradient_checkpointing_func(
858
+ layer_module.__call__,
859
+ hidden_states,
860
+ None,
861
+ output_attentions,
862
+ )
863
+ else:
864
+ layer_outputs = layer_module(hidden_states, output_attentions=output_attentions)
865
+
866
+ hidden_states = layer_outputs[0]
867
+
868
+ if output_attentions:
869
+ all_self_attentions = all_self_attentions + (layer_outputs[1],)
870
+
871
+ if output_hidden_states:
872
+ all_hidden_states = all_hidden_states + (hidden_states,)
873
+
874
+ # predictor projection
875
+ logits = self.layernorm(hidden_states)
876
+
877
+ if not return_dict:
878
+ return tuple(v for v in [logits, all_hidden_states, all_self_attentions] if v is not None)
879
+ return TvltDecoderOutput(logits=logits, hidden_states=all_hidden_states, attentions=all_self_attentions)
880
+
881
+
882
+ @add_start_docstrings(
883
+ "The TVLT Model transformer with the decoder on top for self-supervised pre-training.",
884
+ TVLT_START_DOCSTRING,
885
+ )
886
+ class TvltForPreTraining(TvltPreTrainedModel):
887
+ def __init__(self, config):
888
+ super().__init__(config)
889
+ self.config = config
890
+
891
+ self.task_matching = config.task_matching
892
+ self.task_mae = config.task_mae
893
+ if not (self.task_matching or self.task_mae):
894
+ raise ValueError("Must set at least one of matching task and MAE task to true")
895
+
896
+ self.tvlt = TvltModel(config)
897
+
898
+ if self.task_matching:
899
+ self.matching_head = TvltMatchingHead(config)
900
+
901
+ if self.task_mae:
902
+ self.encoder_to_decoder = nn.Linear(config.hidden_size, config.decoder_hidden_size, bias=True)
903
+
904
+ self.pixel_mask_token = nn.Parameter(torch.zeros(1, 1, config.decoder_hidden_size))
905
+ self.audio_mask_token = nn.Parameter(torch.zeros(1, 1, config.decoder_hidden_size))
906
+
907
+ self.decoder = TvltDecoder(config)
908
+
909
+ decoder_hidden_size = config.decoder_hidden_size
910
+
911
+ num_frames = config.num_frames
912
+ num_patches_per_image = self.tvlt.pixel_embeddings.num_patches_per_image
913
+ self.decoder_pixel_pos_embed = nn.Parameter(torch.zeros(1, num_patches_per_image, decoder_hidden_size))
914
+ self.decoder_temporal_embed = nn.Parameter(torch.zeros(1, config.num_frames, decoder_hidden_size))
915
+ self.decoder_pixel_type_embed = nn.Parameter(torch.zeros(1, 1, decoder_hidden_size))
916
+
917
+ num_audio_patches = self.tvlt.audio_embeddings.num_patches
918
+ num_freq_patches = config.frequency_length // config.audio_patch_size[1]
919
+ self.decoder_audio_pos_embed = nn.Parameter(
920
+ torch.zeros(1, num_audio_patches // num_freq_patches, decoder_hidden_size)
921
+ )
922
+ self.decoder_freq_embed = nn.Parameter(torch.zeros(1, num_freq_patches, decoder_hidden_size))
923
+ self.decoder_audio_type_embed = nn.Parameter(torch.zeros(1, 1, decoder_hidden_size))
924
+
925
+ pixel_mae_output_dim = self.config.image_patch_size[0] ** 2 * self.config.num_image_channels
926
+ self.pixel_mae_head = TvltMAEHead(config, pixel_mae_output_dim)
927
+ audio_mae_output_dim = (
928
+ self.config.audio_patch_size[0] * self.config.audio_patch_size[1] * self.config.num_audio_channels
929
+ )
930
+ self.audio_mae_head = TvltMAEHead(config, audio_mae_output_dim)
931
+
932
+ self.num_frames = num_frames
933
+ self.num_patches_per_image = num_patches_per_image
934
+ self.num_freq_patches = num_freq_patches
935
+ self.image_patch_size = config.image_patch_size
936
+ self.audio_patch_size = config.audio_patch_size
937
+
938
+ # Initialize weights and apply final processing
939
+ self.post_init()
940
+
941
+ def patchify_pixel(self, pixel_values):
942
+ """
943
+ pixel_values: [batch_size, num_frames, 3, height, width]
944
+ """
945
+ batch_size, num_frames, num_channels, height, width = pixel_values.shape
946
+ num_patches_height = pixel_values.shape[3] // self.image_patch_size[0]
947
+ num_patches_width = pixel_values.shape[4] // self.image_patch_size[1]
948
+ patchified_pixel_values = pixel_values.reshape(
949
+ shape=(
950
+ batch_size,
951
+ num_frames,
952
+ num_channels,
953
+ num_patches_height,
954
+ self.image_patch_size[0],
955
+ num_patches_width,
956
+ self.image_patch_size[1],
957
+ )
958
+ )
959
+ patchified_pixel_values = torch.einsum("ntchpwq->nthwpqc", patchified_pixel_values)
960
+ patchified_pixel_values = patchified_pixel_values.reshape(
961
+ shape=(
962
+ batch_size,
963
+ num_patches_height * num_patches_width * num_frames,
964
+ self.image_patch_size[0] * self.image_patch_size[1] * num_channels,
965
+ )
966
+ )
967
+ return patchified_pixel_values
968
+
969
+ def patchify_audio(self, audio_values):
970
+ """
971
+ audio_values: [batch_size, 1, height, width]
972
+ """
973
+ batch_size, num_channels, height, width = audio_values.shape
974
+ num_patches_height = height // self.audio_patch_size[0]
975
+ num_patches_width = width // self.audio_patch_size[1]
976
+ patchified_audio_values = audio_values.reshape(
977
+ shape=(
978
+ batch_size,
979
+ num_channels,
980
+ num_patches_height,
981
+ self.audio_patch_size[0],
982
+ num_patches_width,
983
+ self.audio_patch_size[1],
984
+ )
985
+ )
986
+ patchified_audio_values = torch.einsum("nchpwq->nhwpqc", patchified_audio_values)
987
+ patchified_audio_values = patchified_audio_values.reshape(
988
+ shape=(
989
+ batch_size,
990
+ num_patches_height * num_patches_width,
991
+ self.audio_patch_size[0] * self.audio_patch_size[1] * num_channels,
992
+ )
993
+ )
994
+ return patchified_audio_values
995
+
996
+ def pixel_mae_loss(self, pixel_values, pixel_predictions, mask):
997
+ patchified_pixel_values = self.patchify_pixel(pixel_values)
998
+ loss = (pixel_predictions - patchified_pixel_values) ** 2
999
+ loss = loss.mean(dim=-1) # [batch_size, pixel_pixel_length], mean loss per patch
1000
+ loss = (loss * mask).sum() / mask.sum() # mean loss on removed patches
1001
+ return loss
1002
+
1003
+ def audio_mae_loss(self, audio_values, audio_predictions, mask):
1004
+ patchified_audio_values = self.patchify_audio(audio_values)
1005
+ loss = (audio_predictions - patchified_audio_values) ** 2
1006
+ loss = loss.mean(dim=-1) # [batch_size, audio_pixel_length], mean loss per patch
1007
+ loss = (loss * mask).sum() / mask.sum() # mean loss on removed patches
1008
+ return loss
1009
+
1010
+ def concatenate_mask(self, mask_token, sequence, ids_restore):
1011
+ batch_size, seq_length, dim = sequence.shape
1012
+ mask_tokens = mask_token.repeat(batch_size, ids_restore.shape[1] - seq_length, 1)
1013
+ padded_sequence = torch.cat([sequence, mask_tokens], dim=1)
1014
+ padded_sequence = torch.gather(
1015
+ padded_sequence, dim=1, index=ids_restore.unsqueeze(-1).repeat(1, 1, dim)
1016
+ ) # unshuffle
1017
+ return padded_sequence
1018
+
1019
+ @add_start_docstrings_to_model_forward(TVLT_INPUTS_DOCSTRING)
1020
+ @replace_return_docstrings(output_type=TvltForPreTrainingOutput, config_class=_CONFIG_FOR_DOC)
1021
+ def forward(
1022
+ self,
1023
+ pixel_values: torch.FloatTensor,
1024
+ audio_values: torch.FloatTensor,
1025
+ pixel_mask: Optional[torch.FloatTensor] = None,
1026
+ audio_mask: Optional[torch.FloatTensor] = None,
1027
+ labels: Optional[torch.LongTensor] = None,
1028
+ pixel_values_mixed: Optional[torch.FloatTensor] = None,
1029
+ pixel_mask_mixed: Optional[torch.FloatTensor] = None,
1030
+ output_attentions: Optional[bool] = None,
1031
+ output_hidden_states: Optional[bool] = None,
1032
+ return_dict: Optional[bool] = None,
1033
+ ) -> Union[Tuple[torch.FloatTensor], TvltForPreTrainingOutput]:
1034
+ r"""
1035
+ pixel_values_mixed (`torch.FloatTensor` of shape `(batch_size, num_frames, num_channels, height, width)`):
1036
+ Pixel values that mix positive and negative samples in Tvlt vision-audio matching. Audio values can be
1037
+ obtained using [`TvltProcessor`]. See [`TvltProcessor.__call__`] for details.
1038
+
1039
+ pixel_mask_mixed (`torch.FloatTensor` of shape `(batch_size, num_channels, height, width)`):
1040
+ Pixel masks of pixel_values_mixed. Pixel values mixed can be obtained using [`TvltProcessor`]. See
1041
+ [`TvltProcessor.__call__`] for details.
1042
+
1043
+ labels (`torch.LongTensor` of shape `(batch_size, num_labels)`, *optional*):
1044
+ Labels for computing the vision audio matching loss. Indices should be in `[0, 1]`. num_labels has to be 1.
1045
+
1046
+ Return:
1047
+
1048
+ Examples:
1049
+
1050
+ ```python
1051
+ >>> from transformers import TvltProcessor, TvltForPreTraining
1052
+ >>> import numpy as np
1053
+ >>> import torch
1054
+
1055
+ >>> num_frames = 8
1056
+ >>> images = list(np.random.randn(num_frames, 3, 224, 224))
1057
+ >>> images_mixed = list(np.random.randn(num_frames, 3, 224, 224))
1058
+ >>> audio = list(np.random.randn(10000))
1059
+ >>> processor = TvltProcessor.from_pretrained("ZinengTang/tvlt-base")
1060
+ >>> model = TvltForPreTraining.from_pretrained("ZinengTang/tvlt-base")
1061
+ >>> input_dict = processor(
1062
+ ... images, audio, images_mixed, sampling_rate=44100, mask_pixel=True, mask_audio=True, return_tensors="pt"
1063
+ ... )
1064
+
1065
+ >>> outputs = model(**input_dict)
1066
+ >>> loss = outputs.loss
1067
+ ```"""
1068
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
1069
+ total_loss = 0.0
1070
+
1071
+ if self.task_matching:
1072
+ if labels is None:
1073
+ raise ValueError("Matching task requires labels")
1074
+ if pixel_values_mixed is None:
1075
+ raise ValueError("Matching task requires pixel_values_mixed")
1076
+
1077
+ outputs = self.tvlt(
1078
+ pixel_values_mixed,
1079
+ audio_values,
1080
+ pixel_mask=pixel_mask_mixed,
1081
+ audio_mask=audio_mask,
1082
+ output_attentions=output_attentions,
1083
+ output_hidden_states=output_hidden_states,
1084
+ return_dict=return_dict,
1085
+ )
1086
+
1087
+ sequence_output = outputs[0]
1088
+ matching_logits = self.matching_head(sequence_output)
1089
+
1090
+ loss_fct = BCEWithLogitsLoss()
1091
+ loss = loss_fct(matching_logits.view(-1), labels.view(-1))
1092
+ total_loss += loss
1093
+
1094
+ pixel_logits = None
1095
+ audio_logits = None
1096
+ if self.task_mae and self.training:
1097
+ outputs = self.tvlt(
1098
+ pixel_values,
1099
+ audio_values,
1100
+ pixel_mask=pixel_mask,
1101
+ audio_mask=audio_mask,
1102
+ mask_pixel=True,
1103
+ mask_audio=True,
1104
+ output_attentions=output_attentions,
1105
+ output_hidden_states=output_hidden_states,
1106
+ return_dict=return_dict,
1107
+ )
1108
+ pixel_sequence_output = outputs.last_pixel_hidden_state if return_dict else outputs[1]
1109
+ audio_sequence_output = outputs.last_audio_hidden_state if return_dict else outputs[2]
1110
+ pixel_label_masks = outputs.pixel_label_masks if return_dict else outputs[3]
1111
+ audio_label_masks = outputs.audio_label_masks if return_dict else outputs[4]
1112
+ pixel_ids_restore = outputs.pixel_ids_restore if return_dict else outputs[5]
1113
+ audio_ids_restore = outputs.audio_ids_restore if return_dict else outputs[6]
1114
+
1115
+ pixel_decoder_input = self.encoder_to_decoder(
1116
+ pixel_sequence_output
1117
+ ) # [batch_size, num_masked_pixel_patches, decoder_hidden_size]
1118
+ audio_decoder_input = self.encoder_to_decoder(
1119
+ audio_sequence_output
1120
+ ) # [batch_size, num_masked_audio_patches, decoder_hidden_size]
1121
+ num_frames = pixel_values.size(1)
1122
+ pixel_decoder_input = self.concatenate_mask(self.pixel_mask_token, pixel_decoder_input, pixel_ids_restore)
1123
+ pixel_decoder_input = pixel_decoder_input + self.decoder_pixel_pos_embed.repeat(1, num_frames, 1)
1124
+ pixel_decoder_input = pixel_decoder_input + torch.repeat_interleave(
1125
+ self.decoder_temporal_embed[:, :num_frames], self.num_patches_per_image, dim=1
1126
+ )
1127
+ pixel_decoder_input = pixel_decoder_input + self.decoder_pixel_type_embed
1128
+ pixel_decoder_outputs = self.decoder(pixel_decoder_input)
1129
+ pixel_logits = self.pixel_mae_head(pixel_decoder_outputs.logits)
1130
+
1131
+ audio_decoder_input = self.concatenate_mask(self.audio_mask_token, audio_decoder_input, audio_ids_restore)
1132
+ num_time_patches = audio_decoder_input.size(1) // self.num_freq_patches
1133
+ audio_decoder_input = audio_decoder_input + self.decoder_freq_embed.repeat(1, num_time_patches, 1)
1134
+ audio_decoder_input = audio_decoder_input + torch.repeat_interleave(
1135
+ self.decoder_audio_pos_embed[:, :num_time_patches], self.num_freq_patches, dim=1
1136
+ )
1137
+ audio_decoder_input = audio_decoder_input + self.decoder_audio_type_embed
1138
+ audio_decoder_outputs = self.decoder(audio_decoder_input)
1139
+ audio_logits = self.audio_mae_head(audio_decoder_outputs.logits)
1140
+
1141
+ loss = self.pixel_mae_loss(pixel_values, pixel_logits, pixel_label_masks) + self.audio_mae_loss(
1142
+ audio_values, audio_logits, audio_label_masks
1143
+ )
1144
+ total_loss += loss
1145
+
1146
+ if not return_dict:
1147
+ output = (matching_logits, pixel_logits, audio_logits) + outputs[7:]
1148
+ return ((total_loss,) + output) if loss is not None else output
1149
+
1150
+ return TvltForPreTrainingOutput(
1151
+ loss=total_loss,
1152
+ matching_logits=matching_logits,
1153
+ pixel_logits=pixel_logits,
1154
+ audio_logits=audio_logits,
1155
+ hidden_states=outputs.hidden_states,
1156
+ attentions=outputs.attentions,
1157
+ )
1158
+
1159
+
1160
+ class TvltPooler(nn.Module):
1161
+ def __init__(self, config):
1162
+ super().__init__()
1163
+ self.dense = nn.Linear(config.hidden_size, config.hidden_size)
1164
+ self.activation = nn.Tanh()
1165
+
1166
+ def forward(self, hidden_states):
1167
+ first_token_tensor = hidden_states[:, 0]
1168
+ pooled_output = self.dense(first_token_tensor)
1169
+ pooled_output = self.activation(pooled_output)
1170
+ return pooled_output
1171
+
1172
+
1173
+ class TvltMatchingHead(nn.Module):
1174
+ def __init__(self, config):
1175
+ super().__init__()
1176
+ self.pooler = TvltPooler(config)
1177
+ self.fc = nn.Linear(config.hidden_size, 1)
1178
+
1179
+ def forward(self, hidden_states):
1180
+ hidden_states = self.fc(self.pooler(hidden_states))
1181
+ return hidden_states
1182
+
1183
+
1184
+ class TvltMAEHead(nn.Module):
1185
+ def __init__(self, config, output_dim=None):
1186
+ super().__init__()
1187
+ self.config = config
1188
+ self.decoder = nn.Linear(config.decoder_hidden_size, output_dim)
1189
+
1190
+ def forward(self, hidden_states):
1191
+ hidden_states = self.decoder(hidden_states)
1192
+ return hidden_states
1193
+
1194
+
1195
+ @add_start_docstrings(
1196
+ """
1197
+ Tvlt Model transformer with a classifier head on top (an MLP on top of the final hidden state of the [CLS] token)
1198
+ for audiovisual classification tasks, e.g. CMU-MOSEI Sentiment Analysis and Audio to Video Retrieval.
1199
+ """,
1200
+ TVLT_START_DOCSTRING,
1201
+ )
1202
+ class TvltForAudioVisualClassification(TvltPreTrainedModel):
1203
+ def __init__(self, config):
1204
+ super().__init__(config)
1205
+
1206
+ self.tvlt = TvltModel(config)
1207
+
1208
+ # Classifier head
1209
+ self.classifier = nn.Sequential(
1210
+ nn.Linear(config.hidden_size, config.hidden_size * 2),
1211
+ nn.LayerNorm(config.hidden_size * 2, eps=config.layer_norm_eps),
1212
+ nn.GELU(),
1213
+ nn.Linear(config.hidden_size * 2, config.num_labels),
1214
+ )
1215
+ self.config = config
1216
+
1217
+ # Initialize weights and apply final processing
1218
+ self.post_init()
1219
+
1220
+ @add_start_docstrings_to_model_forward(TVLT_INPUTS_DOCSTRING)
1221
+ @replace_return_docstrings(output_type=SequenceClassifierOutput, config_class=_CONFIG_FOR_DOC)
1222
+ def forward(
1223
+ self,
1224
+ pixel_values: torch.FloatTensor,
1225
+ audio_values: torch.FloatTensor,
1226
+ pixel_mask: Optional[torch.FloatTensor] = None,
1227
+ audio_mask: Optional[torch.FloatTensor] = None,
1228
+ output_attentions: Optional[bool] = None,
1229
+ output_hidden_states: Optional[bool] = None,
1230
+ return_dict: Optional[bool] = None,
1231
+ labels: Optional[torch.LongTensor] = None,
1232
+ ) -> Union[Tuple[torch.FloatTensor], SequenceClassifierOutput]:
1233
+ r"""
1234
+ labels (`torch.LongTensor` of shape `(batch_size, num_labels)`, *optional*):
1235
+ Labels for computing the audiovisual loss. Indices should be in `[0, ..., num_classes-1]` where num_classes
1236
+ refers to the number of classes in audiovisual tasks.
1237
+
1238
+ Return:
1239
+
1240
+ Examples:
1241
+ ```python
1242
+ >>> from transformers import TvltProcessor, TvltForAudioVisualClassification
1243
+ >>> import numpy as np
1244
+ >>> import torch
1245
+
1246
+ >>> num_frames = 8
1247
+ >>> images = list(np.random.randn(num_frames, 3, 224, 224))
1248
+ >>> audio = list(np.random.randn(10000))
1249
+ >>> processor = TvltProcessor.from_pretrained("ZinengTang/tvlt-base")
1250
+ >>> model = TvltForAudioVisualClassification.from_pretrained("ZinengTang/tvlt-base")
1251
+ >>> input_dict = processor(images, audio, sampling_rate=44100, return_tensors="pt")
1252
+
1253
+ >>> outputs = model(**input_dict)
1254
+ >>> loss = outputs.loss
1255
+ ```"""
1256
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
1257
+
1258
+ outputs = self.tvlt(
1259
+ pixel_values,
1260
+ audio_values,
1261
+ pixel_mask=pixel_mask,
1262
+ audio_mask=audio_mask,
1263
+ output_attentions=output_attentions,
1264
+ output_hidden_states=output_hidden_states,
1265
+ return_dict=return_dict,
1266
+ )
1267
+ sequence_output = outputs[0][:, 0]
1268
+ logits = self.classifier(sequence_output) # rank value
1269
+
1270
+ loss = None
1271
+ if labels is not None:
1272
+ if self.config.loss_type == "regression":
1273
+ loss_fct = MSELoss()
1274
+ loss = loss_fct(logits, labels)
1275
+ elif self.config.loss_type == "classification":
1276
+ loss_fct = CrossEntropyLoss()
1277
+ loss = loss_fct(logits, labels)
1278
+
1279
+ if not return_dict:
1280
+ output = (logits,) + outputs[4:]
1281
+ return ((loss,) + output) if loss is not None else output
1282
+
1283
+ return SequenceClassifierOutput(
1284
+ loss=loss,
1285
+ logits=logits,
1286
+ hidden_states=outputs.hidden_states,
1287
+ attentions=outputs.attentions,
1288
+ )
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/tvlt/processing_tvlt.py ADDED
@@ -0,0 +1,89 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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
+ """
16
+ Processor class for TVLT.
17
+ """
18
+
19
+ from ....processing_utils import ProcessorMixin
20
+
21
+
22
+ class TvltProcessor(ProcessorMixin):
23
+ r"""
24
+ Constructs a TVLT processor which wraps a TVLT image processor and TVLT feature extractor into a single processor.
25
+
26
+ [`TvltProcessor`] offers all the functionalities of [`TvltImageProcessor`] and [`TvltFeatureExtractor`]. See the
27
+ docstring of [`~TvltProcessor.__call__`] for more information.
28
+
29
+ Args:
30
+ image_processor (`TvltImageProcessor`):
31
+ An instance of [`TvltImageProcessor`]. The image processor is a required input.
32
+ feature_extractor (`TvltFeatureExtractor`):
33
+ An instance of [`TvltFeatureExtractor`]. The feature extractor is a required input.
34
+ """
35
+
36
+ attributes = ["image_processor", "feature_extractor"]
37
+ image_processor_class = "TvltImageProcessor"
38
+ feature_extractor_class = "TvltFeatureExtractor"
39
+
40
+ def __init__(self, image_processor, feature_extractor):
41
+ super().__init__(image_processor=image_processor, feature_extractor=feature_extractor)
42
+
43
+ self.image_processor = image_processor
44
+ self.feature_extractor = feature_extractor
45
+
46
+ def __call__(
47
+ self,
48
+ images=None,
49
+ audio=None,
50
+ images_mixed=None,
51
+ sampling_rate=None,
52
+ mask_audio=False,
53
+ mask_pixel=False,
54
+ *args,
55
+ **kwargs,
56
+ ):
57
+ """
58
+ Forwards the `images` argument to TvltImageProcessor's [`~TvltImageProcessor.preprocess`] and the `audio`
59
+ argument to TvltFeatureExtractor's [`~TvltFeatureExtractor.__call__`]. Please refer to the docstring of the
60
+ above two methods for more information.
61
+ """
62
+
63
+ if images is None and audio is None:
64
+ raise ValueError("You need to specify either an `images` or `audio` input to process.")
65
+
66
+ images_mixed_dict = None
67
+ if images is not None:
68
+ images_dict = self.image_processor(images, mask_pixel=mask_pixel, *args, **kwargs)
69
+ if images_mixed is not None:
70
+ images_mixed_dict = self.image_processor(images_mixed, is_mixed=True, *args, **kwargs)
71
+ if audio is not None:
72
+ audio_dict = self.feature_extractor(
73
+ audio, *args, sampling_rate=sampling_rate, mask_audio=mask_audio, **kwargs
74
+ )
75
+
76
+ output_dict = {}
77
+ if audio is not None:
78
+ output_dict.update(audio_dict)
79
+ if images is not None:
80
+ output_dict.update(images_dict)
81
+ if images_mixed_dict is not None:
82
+ output_dict.update(images_mixed_dict)
83
+ return output_dict
84
+
85
+ @property
86
+ def model_input_names(self):
87
+ image_processor_input_names = self.image_processor.model_input_names
88
+ feature_extractor_input_names = self.feature_extractor.model_input_names
89
+ return list(dict.fromkeys(image_processor_input_names + feature_extractor_input_names))
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/van/__init__.py ADDED
@@ -0,0 +1,52 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # Copyright 2022 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 OptionalDependencyNotAvailable, _LazyModule, is_torch_available, is_vision_available
17
+
18
+
19
+ _import_structure = {"configuration_van": ["VanConfig"]}
20
+
21
+
22
+ try:
23
+ if not is_torch_available():
24
+ raise OptionalDependencyNotAvailable()
25
+ except OptionalDependencyNotAvailable:
26
+ pass
27
+ else:
28
+ _import_structure["modeling_van"] = [
29
+ "VanForImageClassification",
30
+ "VanModel",
31
+ "VanPreTrainedModel",
32
+ ]
33
+
34
+ if TYPE_CHECKING:
35
+ from .configuration_van import VanConfig
36
+
37
+ try:
38
+ if not is_torch_available():
39
+ raise OptionalDependencyNotAvailable()
40
+ except OptionalDependencyNotAvailable:
41
+ pass
42
+ else:
43
+ from .modeling_van import (
44
+ VanForImageClassification,
45
+ VanModel,
46
+ VanPreTrainedModel,
47
+ )
48
+
49
+ else:
50
+ import sys
51
+
52
+ sys.modules[__name__] = _LazyModule(__name__, globals()["__file__"], _import_structure)
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/van/configuration_van.py ADDED
@@ -0,0 +1,107 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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
+ """VAN 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 VanConfig(PretrainedConfig):
25
+ r"""
26
+ This is the configuration class to store the configuration of a [`VanModel`]. It is used to instantiate a VAN 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 VAN
29
+ [Visual-Attention-Network/van-base](https://huggingface.co/Visual-Attention-Network/van-base) 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
+ image_size (`int`, *optional*, defaults to 224):
36
+ The size (resolution) of each image.
37
+ num_channels (`int`, *optional*, defaults to 3):
38
+ The number of input channels.
39
+ patch_sizes (`List[int]`, *optional*, defaults to `[7, 3, 3, 3]`):
40
+ Patch size to use in each stage's embedding layer.
41
+ strides (`List[int]`, *optional*, defaults to `[4, 2, 2, 2]`):
42
+ Stride size to use in each stage's embedding layer to downsample the input.
43
+ hidden_sizes (`List[int]`, *optional*, defaults to `[64, 128, 320, 512]`):
44
+ Dimensionality (hidden size) at each stage.
45
+ depths (`List[int]`, *optional*, defaults to `[3, 3, 12, 3]`):
46
+ Depth (number of layers) for each stage.
47
+ mlp_ratios (`List[int]`, *optional*, defaults to `[8, 8, 4, 4]`):
48
+ The expansion ratio for mlp layer at each stage.
49
+ hidden_act (`str` or `function`, *optional*, defaults to `"gelu"`):
50
+ The non-linear activation function (function or string) in each layer. If string, `"gelu"`, `"relu"`,
51
+ `"selu"` and `"gelu_new"` are supported.
52
+ initializer_range (`float`, *optional*, defaults to 0.02):
53
+ The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
54
+ layer_norm_eps (`float`, *optional*, defaults to 1e-06):
55
+ The epsilon used by the layer normalization layers.
56
+ layer_scale_init_value (`float`, *optional*, defaults to 0.01):
57
+ The initial value for layer scaling.
58
+ drop_path_rate (`float`, *optional*, defaults to 0.0):
59
+ The dropout probability for stochastic depth.
60
+ dropout_rate (`float`, *optional*, defaults to 0.0):
61
+ The dropout probability for dropout.
62
+
63
+ Example:
64
+ ```python
65
+ >>> from transformers import VanModel, VanConfig
66
+
67
+ >>> # Initializing a VAN van-base style configuration
68
+ >>> configuration = VanConfig()
69
+ >>> # Initializing a model from the van-base style configuration
70
+ >>> model = VanModel(configuration)
71
+ >>> # Accessing the model configuration
72
+ >>> configuration = model.config
73
+ ```"""
74
+
75
+ model_type = "van"
76
+
77
+ def __init__(
78
+ self,
79
+ image_size=224,
80
+ num_channels=3,
81
+ patch_sizes=[7, 3, 3, 3],
82
+ strides=[4, 2, 2, 2],
83
+ hidden_sizes=[64, 128, 320, 512],
84
+ depths=[3, 3, 12, 3],
85
+ mlp_ratios=[8, 8, 4, 4],
86
+ hidden_act="gelu",
87
+ initializer_range=0.02,
88
+ layer_norm_eps=1e-6,
89
+ layer_scale_init_value=1e-2,
90
+ drop_path_rate=0.0,
91
+ dropout_rate=0.0,
92
+ **kwargs,
93
+ ):
94
+ super().__init__(**kwargs)
95
+ self.image_size = image_size
96
+ self.num_channels = num_channels
97
+ self.patch_sizes = patch_sizes
98
+ self.strides = strides
99
+ self.hidden_sizes = hidden_sizes
100
+ self.depths = depths
101
+ self.mlp_ratios = mlp_ratios
102
+ self.hidden_act = hidden_act
103
+ self.initializer_range = initializer_range
104
+ self.layer_norm_eps = layer_norm_eps
105
+ self.layer_scale_init_value = layer_scale_init_value
106
+ self.drop_path_rate = drop_path_rate
107
+ self.dropout_rate = dropout_rate
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/van/convert_van_to_pytorch.py ADDED
@@ -0,0 +1,290 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2022 BNRist (Tsinghua University), TKLNDST (Nankai University) 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
+ """Convert VAN checkpoints from the original repository.
16
+
17
+ URL: https://github.com/Visual-Attention-Network/VAN-Classification"""
18
+
19
+ import argparse
20
+ import json
21
+ import sys
22
+ from dataclasses import dataclass, field
23
+ from functools import partial
24
+ from pathlib import Path
25
+ from typing import List
26
+
27
+ import torch
28
+ import torch.nn as nn
29
+ from huggingface_hub import cached_download, hf_hub_download
30
+ from torch import Tensor
31
+
32
+ from transformers import AutoImageProcessor, VanConfig, VanForImageClassification
33
+ from transformers.models.deprecated.van.modeling_van import VanLayerScaling
34
+ from transformers.utils import logging
35
+
36
+
37
+ logging.set_verbosity_info()
38
+ logger = logging.get_logger(__name__)
39
+
40
+
41
+ @dataclass
42
+ class Tracker:
43
+ module: nn.Module
44
+ traced: List[nn.Module] = field(default_factory=list)
45
+ handles: list = field(default_factory=list)
46
+
47
+ def _forward_hook(self, m, inputs: Tensor, outputs: Tensor):
48
+ has_not_submodules = len(list(m.modules())) == 1 or isinstance(m, nn.Conv2d) or isinstance(m, nn.BatchNorm2d)
49
+ if has_not_submodules:
50
+ if not isinstance(m, VanLayerScaling):
51
+ self.traced.append(m)
52
+
53
+ def __call__(self, x: Tensor):
54
+ for m in self.module.modules():
55
+ self.handles.append(m.register_forward_hook(self._forward_hook))
56
+ self.module(x)
57
+ [x.remove() for x in self.handles]
58
+ return self
59
+
60
+ @property
61
+ def parametrized(self):
62
+ # check the len of the state_dict keys to see if we have learnable params
63
+ return list(filter(lambda x: len(list(x.state_dict().keys())) > 0, self.traced))
64
+
65
+
66
+ @dataclass
67
+ class ModuleTransfer:
68
+ src: nn.Module
69
+ dest: nn.Module
70
+ verbose: int = 0
71
+ src_skip: List = field(default_factory=list)
72
+ dest_skip: List = field(default_factory=list)
73
+
74
+ def __call__(self, x: Tensor):
75
+ """
76
+ Transfer the weights of `self.src` to `self.dest` by performing a forward pass using `x` as input. Under the
77
+ hood we tracked all the operations in both modules.
78
+ """
79
+ dest_traced = Tracker(self.dest)(x).parametrized
80
+ src_traced = Tracker(self.src)(x).parametrized
81
+
82
+ src_traced = list(filter(lambda x: type(x) not in self.src_skip, src_traced))
83
+ dest_traced = list(filter(lambda x: type(x) not in self.dest_skip, dest_traced))
84
+
85
+ if len(dest_traced) != len(src_traced):
86
+ raise Exception(
87
+ f"Numbers of operations are different. Source module has {len(src_traced)} operations while"
88
+ f" destination module has {len(dest_traced)}."
89
+ )
90
+
91
+ for dest_m, src_m in zip(dest_traced, src_traced):
92
+ dest_m.load_state_dict(src_m.state_dict())
93
+ if self.verbose == 1:
94
+ print(f"Transfered from={src_m} to={dest_m}")
95
+
96
+
97
+ def copy_parameters(from_model: nn.Module, our_model: nn.Module) -> nn.Module:
98
+ # nn.Parameter cannot be tracked by the Tracker, thus we need to manually convert them
99
+ from_state_dict = from_model.state_dict()
100
+ our_state_dict = our_model.state_dict()
101
+ config = our_model.config
102
+ all_keys = []
103
+ for stage_idx in range(len(config.hidden_sizes)):
104
+ for block_id in range(config.depths[stage_idx]):
105
+ from_key = f"block{stage_idx + 1}.{block_id}.layer_scale_1"
106
+ to_key = f"van.encoder.stages.{stage_idx}.layers.{block_id}.attention_scaling.weight"
107
+
108
+ all_keys.append((from_key, to_key))
109
+ from_key = f"block{stage_idx + 1}.{block_id}.layer_scale_2"
110
+ to_key = f"van.encoder.stages.{stage_idx}.layers.{block_id}.mlp_scaling.weight"
111
+
112
+ all_keys.append((from_key, to_key))
113
+
114
+ for from_key, to_key in all_keys:
115
+ our_state_dict[to_key] = from_state_dict.pop(from_key)
116
+
117
+ our_model.load_state_dict(our_state_dict)
118
+ return our_model
119
+
120
+
121
+ def convert_weight_and_push(
122
+ name: str,
123
+ config: VanConfig,
124
+ checkpoint: str,
125
+ from_model: nn.Module,
126
+ save_directory: Path,
127
+ push_to_hub: bool = True,
128
+ ):
129
+ print(f"Downloading weights for {name}...")
130
+ checkpoint_path = cached_download(checkpoint)
131
+ print(f"Converting {name}...")
132
+ from_state_dict = torch.load(checkpoint_path)["state_dict"]
133
+ from_model.load_state_dict(from_state_dict)
134
+ from_model.eval()
135
+ with torch.no_grad():
136
+ our_model = VanForImageClassification(config).eval()
137
+ module_transfer = ModuleTransfer(src=from_model, dest=our_model)
138
+ x = torch.randn((1, 3, 224, 224))
139
+ module_transfer(x)
140
+ our_model = copy_parameters(from_model, our_model)
141
+
142
+ if not torch.allclose(from_model(x), our_model(x).logits):
143
+ raise ValueError("The model logits don't match the original one.")
144
+
145
+ checkpoint_name = name
146
+ print(checkpoint_name)
147
+
148
+ if push_to_hub:
149
+ our_model.push_to_hub(
150
+ repo_path_or_name=save_directory / checkpoint_name,
151
+ commit_message="Add model",
152
+ use_temp_dir=True,
153
+ )
154
+
155
+ # we can use the convnext one
156
+ image_processor = AutoImageProcessor.from_pretrained("facebook/convnext-base-224-22k-1k")
157
+ image_processor.push_to_hub(
158
+ repo_path_or_name=save_directory / checkpoint_name,
159
+ commit_message="Add image processor",
160
+ use_temp_dir=True,
161
+ )
162
+
163
+ print(f"Pushed {checkpoint_name}")
164
+
165
+
166
+ def convert_weights_and_push(save_directory: Path, model_name: str = None, push_to_hub: bool = True):
167
+ filename = "imagenet-1k-id2label.json"
168
+ num_labels = 1000
169
+
170
+ repo_id = "huggingface/label-files"
171
+ num_labels = num_labels
172
+ id2label = json.load(open(hf_hub_download(repo_id, filename, repo_type="dataset"), "r"))
173
+ id2label = {int(k): v for k, v in id2label.items()}
174
+
175
+ id2label = id2label
176
+ label2id = {v: k for k, v in id2label.items()}
177
+
178
+ ImageNetPreTrainedConfig = partial(VanConfig, num_labels=num_labels, id2label=id2label, label2id=label2id)
179
+
180
+ names_to_config = {
181
+ "van-tiny": ImageNetPreTrainedConfig(
182
+ hidden_sizes=[32, 64, 160, 256],
183
+ depths=[3, 3, 5, 2],
184
+ mlp_ratios=[8, 8, 4, 4],
185
+ ),
186
+ "van-small": ImageNetPreTrainedConfig(
187
+ hidden_sizes=[64, 128, 320, 512],
188
+ depths=[2, 2, 4, 2],
189
+ mlp_ratios=[8, 8, 4, 4],
190
+ ),
191
+ "van-base": ImageNetPreTrainedConfig(
192
+ hidden_sizes=[64, 128, 320, 512],
193
+ depths=[3, 3, 12, 3],
194
+ mlp_ratios=[8, 8, 4, 4],
195
+ ),
196
+ "van-large": ImageNetPreTrainedConfig(
197
+ hidden_sizes=[64, 128, 320, 512],
198
+ depths=[3, 5, 27, 3],
199
+ mlp_ratios=[8, 8, 4, 4],
200
+ ),
201
+ }
202
+
203
+ names_to_original_models = {
204
+ "van-tiny": van_tiny,
205
+ "van-small": van_small,
206
+ "van-base": van_base,
207
+ "van-large": van_large,
208
+ }
209
+
210
+ names_to_original_checkpoints = {
211
+ "van-tiny": (
212
+ "https://huggingface.co/Visual-Attention-Network/VAN-Tiny-original/resolve/main/van_tiny_754.pth.tar"
213
+ ),
214
+ "van-small": (
215
+ "https://huggingface.co/Visual-Attention-Network/VAN-Small-original/resolve/main/van_small_811.pth.tar"
216
+ ),
217
+ "van-base": (
218
+ "https://huggingface.co/Visual-Attention-Network/VAN-Base-original/resolve/main/van_base_828.pth.tar"
219
+ ),
220
+ "van-large": (
221
+ "https://huggingface.co/Visual-Attention-Network/VAN-Large-original/resolve/main/van_large_839.pth.tar"
222
+ ),
223
+ }
224
+
225
+ if model_name:
226
+ convert_weight_and_push(
227
+ model_name,
228
+ names_to_config[model_name],
229
+ checkpoint=names_to_original_checkpoints[model_name],
230
+ from_model=names_to_original_models[model_name](),
231
+ save_directory=save_directory,
232
+ push_to_hub=push_to_hub,
233
+ )
234
+ else:
235
+ for model_name, config in names_to_config.items():
236
+ convert_weight_and_push(
237
+ model_name,
238
+ config,
239
+ checkpoint=names_to_original_checkpoints[model_name],
240
+ from_model=names_to_original_models[model_name](),
241
+ save_directory=save_directory,
242
+ push_to_hub=push_to_hub,
243
+ )
244
+
245
+
246
+ if __name__ == "__main__":
247
+ parser = argparse.ArgumentParser()
248
+ # Required parameters
249
+ parser.add_argument(
250
+ "--model-name",
251
+ default=None,
252
+ type=str,
253
+ help=(
254
+ "The name of the model you wish to convert, it must be one of the supported resnet* architecture,"
255
+ " currently: van-tiny/small/base/large. If `None`, all of them will the converted."
256
+ ),
257
+ )
258
+ parser.add_argument(
259
+ "--pytorch_dump_folder_path",
260
+ default=None,
261
+ type=Path,
262
+ required=True,
263
+ help="Path to the output PyTorch model directory.",
264
+ )
265
+ parser.add_argument(
266
+ "--van_dir",
267
+ required=True,
268
+ type=Path,
269
+ help=(
270
+ "A path to VAN's original implementation directory. You can download from here:"
271
+ " https://github.com/Visual-Attention-Network/VAN-Classification"
272
+ ),
273
+ )
274
+ parser.add_argument(
275
+ "--push_to_hub",
276
+ default=True,
277
+ type=bool,
278
+ required=False,
279
+ help="If True, push model and image processor to the hub.",
280
+ )
281
+
282
+ args = parser.parse_args()
283
+ pytorch_dump_folder_path: Path = args.pytorch_dump_folder_path
284
+ pytorch_dump_folder_path.mkdir(exist_ok=True, parents=True)
285
+ van_dir = args.van_dir
286
+ # append the path to the parents to maskformer dir
287
+ sys.path.append(str(van_dir.parent))
288
+ from van.models.van import van_base, van_large, van_small, van_tiny
289
+
290
+ convert_weights_and_push(pytorch_dump_folder_path, args.model_name, args.push_to_hub)
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/van/modeling_van.py ADDED
@@ -0,0 +1,536 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2022 BNRist (Tsinghua University), TKLNDST (Nankai University) 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 Visual Attention Network (VAN) model."""
16
+
17
+ import math
18
+ from collections import OrderedDict
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 ....activations import ACT2FN
27
+ from ....modeling_outputs import (
28
+ BaseModelOutputWithNoAttention,
29
+ BaseModelOutputWithPoolingAndNoAttention,
30
+ ImageClassifierOutputWithNoAttention,
31
+ )
32
+ from ....modeling_utils import PreTrainedModel
33
+ from ....utils import add_code_sample_docstrings, add_start_docstrings, add_start_docstrings_to_model_forward, logging
34
+ from .configuration_van import VanConfig
35
+
36
+
37
+ logger = logging.get_logger(__name__)
38
+
39
+ # General docstring
40
+ _CONFIG_FOR_DOC = "VanConfig"
41
+
42
+ # Base docstring
43
+ _CHECKPOINT_FOR_DOC = "Visual-Attention-Network/van-base"
44
+ _EXPECTED_OUTPUT_SHAPE = [1, 512, 7, 7]
45
+
46
+ # Image classification docstring
47
+ _IMAGE_CLASS_CHECKPOINT = "Visual-Attention-Network/van-base"
48
+ _IMAGE_CLASS_EXPECTED_OUTPUT = "tabby, tabby cat"
49
+
50
+
51
+ def drop_path(input: torch.Tensor, drop_prob: float = 0.0, training: bool = False) -> torch.Tensor:
52
+ """
53
+ Drop paths (Stochastic Depth) per sample (when applied in main path of residual blocks).
54
+
55
+ Comment by Ross Wightman: This is the same as the DropConnect impl I created for EfficientNet, etc networks,
56
+ however, the original name is misleading as 'Drop Connect' is a different form of dropout in a separate paper...
57
+ See discussion: https://github.com/tensorflow/tpu/issues/494#issuecomment-532968956 ... I've opted for changing the
58
+ layer and argument names to 'drop path' rather than mix DropConnect as a layer name and use 'survival rate' as the
59
+ argument.
60
+ """
61
+ if drop_prob == 0.0 or not training:
62
+ return input
63
+ keep_prob = 1 - drop_prob
64
+ shape = (input.shape[0],) + (1,) * (input.ndim - 1) # work with diff dim tensors, not just 2D ConvNets
65
+ random_tensor = keep_prob + torch.rand(shape, dtype=input.dtype, device=input.device)
66
+ random_tensor.floor_() # binarize
67
+ output = input.div(keep_prob) * random_tensor
68
+ return output
69
+
70
+
71
+ class VanDropPath(nn.Module):
72
+ """Drop paths (Stochastic Depth) per sample (when applied in main path of residual blocks)."""
73
+
74
+ def __init__(self, drop_prob: Optional[float] = None) -> None:
75
+ super().__init__()
76
+ self.drop_prob = drop_prob
77
+
78
+ def forward(self, hidden_states: torch.Tensor) -> torch.Tensor:
79
+ return drop_path(hidden_states, self.drop_prob, self.training)
80
+
81
+ def extra_repr(self) -> str:
82
+ return "p={}".format(self.drop_prob)
83
+
84
+
85
+ class VanOverlappingPatchEmbedder(nn.Module):
86
+ """
87
+ Downsamples the input using a patchify operation with a `stride` of 4 by default making adjacent windows overlap by
88
+ half of the area. From [PVTv2: Improved Baselines with Pyramid Vision
89
+ Transformer](https://arxiv.org/abs/2106.13797).
90
+ """
91
+
92
+ def __init__(self, in_channels: int, hidden_size: int, patch_size: int = 7, stride: int = 4):
93
+ super().__init__()
94
+ self.convolution = nn.Conv2d(
95
+ in_channels, hidden_size, kernel_size=patch_size, stride=stride, padding=patch_size // 2
96
+ )
97
+ self.normalization = nn.BatchNorm2d(hidden_size)
98
+
99
+ def forward(self, input: torch.Tensor) -> torch.Tensor:
100
+ hidden_state = self.convolution(input)
101
+ hidden_state = self.normalization(hidden_state)
102
+ return hidden_state
103
+
104
+
105
+ class VanMlpLayer(nn.Module):
106
+ """
107
+ MLP with depth-wise convolution, from [PVTv2: Improved Baselines with Pyramid Vision
108
+ Transformer](https://arxiv.org/abs/2106.13797).
109
+ """
110
+
111
+ def __init__(
112
+ self,
113
+ in_channels: int,
114
+ hidden_size: int,
115
+ out_channels: int,
116
+ hidden_act: str = "gelu",
117
+ dropout_rate: float = 0.5,
118
+ ):
119
+ super().__init__()
120
+ self.in_dense = nn.Conv2d(in_channels, hidden_size, kernel_size=1)
121
+ self.depth_wise = nn.Conv2d(hidden_size, hidden_size, kernel_size=3, padding=1, groups=hidden_size)
122
+ self.activation = ACT2FN[hidden_act]
123
+ self.dropout1 = nn.Dropout(dropout_rate)
124
+ self.out_dense = nn.Conv2d(hidden_size, out_channels, kernel_size=1)
125
+ self.dropout2 = nn.Dropout(dropout_rate)
126
+
127
+ def forward(self, hidden_state: torch.Tensor) -> torch.Tensor:
128
+ hidden_state = self.in_dense(hidden_state)
129
+ hidden_state = self.depth_wise(hidden_state)
130
+ hidden_state = self.activation(hidden_state)
131
+ hidden_state = self.dropout1(hidden_state)
132
+ hidden_state = self.out_dense(hidden_state)
133
+ hidden_state = self.dropout2(hidden_state)
134
+ return hidden_state
135
+
136
+
137
+ class VanLargeKernelAttention(nn.Module):
138
+ """
139
+ Basic Large Kernel Attention (LKA).
140
+ """
141
+
142
+ def __init__(self, hidden_size: int):
143
+ super().__init__()
144
+ self.depth_wise = nn.Conv2d(hidden_size, hidden_size, kernel_size=5, padding=2, groups=hidden_size)
145
+ self.depth_wise_dilated = nn.Conv2d(
146
+ hidden_size, hidden_size, kernel_size=7, dilation=3, padding=9, groups=hidden_size
147
+ )
148
+ self.point_wise = nn.Conv2d(hidden_size, hidden_size, kernel_size=1)
149
+
150
+ def forward(self, hidden_state: torch.Tensor) -> torch.Tensor:
151
+ hidden_state = self.depth_wise(hidden_state)
152
+ hidden_state = self.depth_wise_dilated(hidden_state)
153
+ hidden_state = self.point_wise(hidden_state)
154
+ return hidden_state
155
+
156
+
157
+ class VanLargeKernelAttentionLayer(nn.Module):
158
+ """
159
+ Computes attention using Large Kernel Attention (LKA) and attends the input.
160
+ """
161
+
162
+ def __init__(self, hidden_size: int):
163
+ super().__init__()
164
+ self.attention = VanLargeKernelAttention(hidden_size)
165
+
166
+ def forward(self, hidden_state: torch.Tensor) -> torch.Tensor:
167
+ attention = self.attention(hidden_state)
168
+ attended = hidden_state * attention
169
+ return attended
170
+
171
+
172
+ class VanSpatialAttentionLayer(nn.Module):
173
+ """
174
+ Van spatial attention layer composed by projection (via conv) -> act -> Large Kernel Attention (LKA) attention ->
175
+ projection (via conv) + residual connection.
176
+ """
177
+
178
+ def __init__(self, hidden_size: int, hidden_act: str = "gelu"):
179
+ super().__init__()
180
+ self.pre_projection = nn.Sequential(
181
+ OrderedDict(
182
+ [
183
+ ("conv", nn.Conv2d(hidden_size, hidden_size, kernel_size=1)),
184
+ ("act", ACT2FN[hidden_act]),
185
+ ]
186
+ )
187
+ )
188
+ self.attention_layer = VanLargeKernelAttentionLayer(hidden_size)
189
+ self.post_projection = nn.Conv2d(hidden_size, hidden_size, kernel_size=1)
190
+
191
+ def forward(self, hidden_state: torch.Tensor) -> torch.Tensor:
192
+ residual = hidden_state
193
+ hidden_state = self.pre_projection(hidden_state)
194
+ hidden_state = self.attention_layer(hidden_state)
195
+ hidden_state = self.post_projection(hidden_state)
196
+ hidden_state = hidden_state + residual
197
+ return hidden_state
198
+
199
+
200
+ class VanLayerScaling(nn.Module):
201
+ """
202
+ Scales the inputs by a learnable parameter initialized by `initial_value`.
203
+ """
204
+
205
+ def __init__(self, hidden_size: int, initial_value: float = 1e-2):
206
+ super().__init__()
207
+ self.weight = nn.Parameter(initial_value * torch.ones((hidden_size)), requires_grad=True)
208
+
209
+ def forward(self, hidden_state: torch.Tensor) -> torch.Tensor:
210
+ # unsqueezing for broadcasting
211
+ hidden_state = self.weight.unsqueeze(-1).unsqueeze(-1) * hidden_state
212
+ return hidden_state
213
+
214
+
215
+ class VanLayer(nn.Module):
216
+ """
217
+ Van layer composed by normalization layers, large kernel attention (LKA) and a multi layer perceptron (MLP).
218
+ """
219
+
220
+ def __init__(
221
+ self,
222
+ config: VanConfig,
223
+ hidden_size: int,
224
+ mlp_ratio: int = 4,
225
+ drop_path_rate: float = 0.5,
226
+ ):
227
+ super().__init__()
228
+ self.drop_path = VanDropPath(drop_path_rate) if drop_path_rate > 0.0 else nn.Identity()
229
+ self.pre_normomalization = nn.BatchNorm2d(hidden_size)
230
+ self.attention = VanSpatialAttentionLayer(hidden_size, config.hidden_act)
231
+ self.attention_scaling = VanLayerScaling(hidden_size, config.layer_scale_init_value)
232
+ self.post_normalization = nn.BatchNorm2d(hidden_size)
233
+ self.mlp = VanMlpLayer(
234
+ hidden_size, hidden_size * mlp_ratio, hidden_size, config.hidden_act, config.dropout_rate
235
+ )
236
+ self.mlp_scaling = VanLayerScaling(hidden_size, config.layer_scale_init_value)
237
+
238
+ def forward(self, hidden_state: torch.Tensor) -> torch.Tensor:
239
+ residual = hidden_state
240
+ # attention
241
+ hidden_state = self.pre_normomalization(hidden_state)
242
+ hidden_state = self.attention(hidden_state)
243
+ hidden_state = self.attention_scaling(hidden_state)
244
+ hidden_state = self.drop_path(hidden_state)
245
+ # residual connection
246
+ hidden_state = residual + hidden_state
247
+ residual = hidden_state
248
+ # mlp
249
+ hidden_state = self.post_normalization(hidden_state)
250
+ hidden_state = self.mlp(hidden_state)
251
+ hidden_state = self.mlp_scaling(hidden_state)
252
+ hidden_state = self.drop_path(hidden_state)
253
+ # residual connection
254
+ hidden_state = residual + hidden_state
255
+ return hidden_state
256
+
257
+
258
+ class VanStage(nn.Module):
259
+ """
260
+ VanStage, consisting of multiple layers.
261
+ """
262
+
263
+ def __init__(
264
+ self,
265
+ config: VanConfig,
266
+ in_channels: int,
267
+ hidden_size: int,
268
+ patch_size: int,
269
+ stride: int,
270
+ depth: int,
271
+ mlp_ratio: int = 4,
272
+ drop_path_rate: float = 0.0,
273
+ ):
274
+ super().__init__()
275
+ self.embeddings = VanOverlappingPatchEmbedder(in_channels, hidden_size, patch_size, stride)
276
+ self.layers = nn.Sequential(
277
+ *[
278
+ VanLayer(
279
+ config,
280
+ hidden_size,
281
+ mlp_ratio=mlp_ratio,
282
+ drop_path_rate=drop_path_rate,
283
+ )
284
+ for _ in range(depth)
285
+ ]
286
+ )
287
+ self.normalization = nn.LayerNorm(hidden_size, eps=config.layer_norm_eps)
288
+
289
+ def forward(self, hidden_state: torch.Tensor) -> torch.Tensor:
290
+ hidden_state = self.embeddings(hidden_state)
291
+ hidden_state = self.layers(hidden_state)
292
+ # rearrange b c h w -> b (h w) c
293
+ batch_size, hidden_size, height, width = hidden_state.shape
294
+ hidden_state = hidden_state.flatten(2).transpose(1, 2)
295
+ hidden_state = self.normalization(hidden_state)
296
+ # rearrange b (h w) c- > b c h w
297
+ hidden_state = hidden_state.view(batch_size, height, width, hidden_size).permute(0, 3, 1, 2)
298
+ return hidden_state
299
+
300
+
301
+ class VanEncoder(nn.Module):
302
+ """
303
+ VanEncoder, consisting of multiple stages.
304
+ """
305
+
306
+ def __init__(self, config: VanConfig):
307
+ super().__init__()
308
+ self.stages = nn.ModuleList([])
309
+ patch_sizes = config.patch_sizes
310
+ strides = config.strides
311
+ hidden_sizes = config.hidden_sizes
312
+ depths = config.depths
313
+ mlp_ratios = config.mlp_ratios
314
+ drop_path_rates = [x.item() for x in torch.linspace(0, config.drop_path_rate, sum(config.depths))]
315
+
316
+ for num_stage, (patch_size, stride, hidden_size, depth, mlp_expantion, drop_path_rate) in enumerate(
317
+ zip(patch_sizes, strides, hidden_sizes, depths, mlp_ratios, drop_path_rates)
318
+ ):
319
+ is_first_stage = num_stage == 0
320
+ in_channels = hidden_sizes[num_stage - 1]
321
+ if is_first_stage:
322
+ in_channels = config.num_channels
323
+ self.stages.append(
324
+ VanStage(
325
+ config,
326
+ in_channels,
327
+ hidden_size,
328
+ patch_size=patch_size,
329
+ stride=stride,
330
+ depth=depth,
331
+ mlp_ratio=mlp_expantion,
332
+ drop_path_rate=drop_path_rate,
333
+ )
334
+ )
335
+
336
+ def forward(
337
+ self,
338
+ hidden_state: torch.Tensor,
339
+ output_hidden_states: Optional[bool] = False,
340
+ return_dict: Optional[bool] = True,
341
+ ) -> Union[Tuple, BaseModelOutputWithNoAttention]:
342
+ all_hidden_states = () if output_hidden_states else None
343
+
344
+ for _, stage_module in enumerate(self.stages):
345
+ hidden_state = stage_module(hidden_state)
346
+
347
+ if output_hidden_states:
348
+ all_hidden_states = all_hidden_states + (hidden_state,)
349
+
350
+ if not return_dict:
351
+ return tuple(v for v in [hidden_state, all_hidden_states] if v is not None)
352
+
353
+ return BaseModelOutputWithNoAttention(last_hidden_state=hidden_state, hidden_states=all_hidden_states)
354
+
355
+
356
+ class VanPreTrainedModel(PreTrainedModel):
357
+ """
358
+ An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained
359
+ models.
360
+ """
361
+
362
+ config_class = VanConfig
363
+ base_model_prefix = "van"
364
+ main_input_name = "pixel_values"
365
+ supports_gradient_checkpointing = True
366
+
367
+ def _init_weights(self, module):
368
+ """Initialize the weights"""
369
+ if isinstance(module, nn.Linear):
370
+ nn.init.trunc_normal_(module.weight, std=self.config.initializer_range)
371
+ if isinstance(module, nn.Linear) and module.bias is not None:
372
+ nn.init.constant_(module.bias, 0)
373
+ elif isinstance(module, nn.LayerNorm):
374
+ nn.init.constant_(module.bias, 0)
375
+ nn.init.constant_(module.weight, 1.0)
376
+ elif isinstance(module, nn.Conv2d):
377
+ fan_out = module.kernel_size[0] * module.kernel_size[1] * module.out_channels
378
+ fan_out //= module.groups
379
+ module.weight.data.normal_(0, math.sqrt(2.0 / fan_out))
380
+ if module.bias is not None:
381
+ module.bias.data.zero_()
382
+
383
+
384
+ VAN_START_DOCSTRING = r"""
385
+ This model is a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass. Use it
386
+ as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage and
387
+ behavior.
388
+
389
+ Parameters:
390
+ config ([`VanConfig`]): Model configuration class with all the parameters of the model.
391
+ Initializing with a config file does not load the weights associated with the model, only the
392
+ configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights.
393
+ """
394
+
395
+ VAN_INPUTS_DOCSTRING = r"""
396
+ Args:
397
+ pixel_values (`torch.FloatTensor` of shape `(batch_size, num_channels, height, width)`):
398
+ Pixel values. Pixel values can be obtained using [`AutoImageProcessor`]. See
399
+ [`ConvNextImageProcessor.__call__`] for details.
400
+
401
+ output_hidden_states (`bool`, *optional*):
402
+ Whether or not to return the hidden states of all stages. See `hidden_states` under returned tensors for
403
+ more detail.
404
+ return_dict (`bool`, *optional*):
405
+ Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
406
+ """
407
+
408
+
409
+ @add_start_docstrings(
410
+ "The bare VAN model outputting raw features without any specific head on top. Note, VAN does not have an embedding"
411
+ " layer.",
412
+ VAN_START_DOCSTRING,
413
+ )
414
+ class VanModel(VanPreTrainedModel):
415
+ def __init__(self, config):
416
+ super().__init__(config)
417
+ self.config = config
418
+ self.encoder = VanEncoder(config)
419
+ # final layernorm layer
420
+ self.layernorm = nn.LayerNorm(config.hidden_sizes[-1], eps=config.layer_norm_eps)
421
+ # Initialize weights and apply final processing
422
+ self.post_init()
423
+
424
+ @add_start_docstrings_to_model_forward(VAN_INPUTS_DOCSTRING)
425
+ @add_code_sample_docstrings(
426
+ checkpoint=_CHECKPOINT_FOR_DOC,
427
+ output_type=BaseModelOutputWithPoolingAndNoAttention,
428
+ config_class=_CONFIG_FOR_DOC,
429
+ modality="vision",
430
+ expected_output=_EXPECTED_OUTPUT_SHAPE,
431
+ )
432
+ def forward(
433
+ self,
434
+ pixel_values: Optional[torch.FloatTensor],
435
+ output_hidden_states: Optional[bool] = None,
436
+ return_dict: Optional[bool] = None,
437
+ ) -> Union[Tuple, BaseModelOutputWithPoolingAndNoAttention]:
438
+ output_hidden_states = (
439
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
440
+ )
441
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
442
+
443
+ encoder_outputs = self.encoder(
444
+ pixel_values,
445
+ output_hidden_states=output_hidden_states,
446
+ return_dict=return_dict,
447
+ )
448
+ last_hidden_state = encoder_outputs[0]
449
+ # global average pooling, n c w h -> n c
450
+ pooled_output = last_hidden_state.mean(dim=[-2, -1])
451
+
452
+ if not return_dict:
453
+ return (last_hidden_state, pooled_output) + encoder_outputs[1:]
454
+
455
+ return BaseModelOutputWithPoolingAndNoAttention(
456
+ last_hidden_state=last_hidden_state,
457
+ pooler_output=pooled_output,
458
+ hidden_states=encoder_outputs.hidden_states,
459
+ )
460
+
461
+
462
+ @add_start_docstrings(
463
+ """
464
+ VAN Model with an image classification head on top (a linear layer on top of the pooled features), e.g. for
465
+ ImageNet.
466
+ """,
467
+ VAN_START_DOCSTRING,
468
+ )
469
+ class VanForImageClassification(VanPreTrainedModel):
470
+ def __init__(self, config):
471
+ super().__init__(config)
472
+ self.van = VanModel(config)
473
+ # Classifier head
474
+ self.classifier = (
475
+ nn.Linear(config.hidden_sizes[-1], config.num_labels) if config.num_labels > 0 else nn.Identity()
476
+ )
477
+
478
+ # Initialize weights and apply final processing
479
+ self.post_init()
480
+
481
+ @add_start_docstrings_to_model_forward(VAN_INPUTS_DOCSTRING)
482
+ @add_code_sample_docstrings(
483
+ checkpoint=_IMAGE_CLASS_CHECKPOINT,
484
+ output_type=ImageClassifierOutputWithNoAttention,
485
+ config_class=_CONFIG_FOR_DOC,
486
+ expected_output=_IMAGE_CLASS_EXPECTED_OUTPUT,
487
+ )
488
+ def forward(
489
+ self,
490
+ pixel_values: Optional[torch.FloatTensor] = None,
491
+ labels: Optional[torch.LongTensor] = None,
492
+ output_hidden_states: Optional[bool] = None,
493
+ return_dict: Optional[bool] = None,
494
+ ) -> Union[Tuple, ImageClassifierOutputWithNoAttention]:
495
+ r"""
496
+ labels (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
497
+ Labels for computing the image classification/regression loss. Indices should be in `[0, ...,
498
+ config.num_labels - 1]`. If `config.num_labels == 1` a regression loss is computed (Mean-Square loss), If
499
+ `config.num_labels > 1` a classification loss is computed (Cross-Entropy).
500
+ """
501
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
502
+
503
+ outputs = self.van(pixel_values, output_hidden_states=output_hidden_states, return_dict=return_dict)
504
+
505
+ pooled_output = outputs.pooler_output if return_dict else outputs[1]
506
+
507
+ logits = self.classifier(pooled_output)
508
+
509
+ loss = None
510
+ if labels is not None:
511
+ if self.config.problem_type is None:
512
+ if self.config.num_labels == 1:
513
+ self.config.problem_type = "regression"
514
+ elif self.config.num_labels > 1 and (labels.dtype == torch.long or labels.dtype == torch.int):
515
+ self.config.problem_type = "single_label_classification"
516
+ else:
517
+ self.config.problem_type = "multi_label_classification"
518
+
519
+ if self.config.problem_type == "regression":
520
+ loss_fct = MSELoss()
521
+ if self.config.num_labels == 1:
522
+ loss = loss_fct(logits.squeeze(), labels.squeeze())
523
+ else:
524
+ loss = loss_fct(logits, labels)
525
+ elif self.config.problem_type == "single_label_classification":
526
+ loss_fct = CrossEntropyLoss()
527
+ loss = loss_fct(logits.view(-1, self.config.num_labels), labels.view(-1))
528
+ elif self.config.problem_type == "multi_label_classification":
529
+ loss_fct = BCEWithLogitsLoss()
530
+ loss = loss_fct(logits, labels)
531
+
532
+ if not return_dict:
533
+ output = (logits,) + outputs[2:]
534
+ return ((loss,) + output) if loss is not None else output
535
+
536
+ return ImageClassifierOutputWithNoAttention(loss=loss, logits=logits, hidden_states=outputs.hidden_states)
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/vit_hybrid/__init__.py ADDED
@@ -0,0 +1,69 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # Copyright 2022 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 OptionalDependencyNotAvailable, _LazyModule, is_torch_available, is_vision_available
17
+
18
+
19
+ _import_structure = {"configuration_vit_hybrid": ["ViTHybridConfig"]}
20
+
21
+ try:
22
+ if not is_torch_available():
23
+ raise OptionalDependencyNotAvailable()
24
+ except OptionalDependencyNotAvailable:
25
+ pass
26
+ else:
27
+ _import_structure["modeling_vit_hybrid"] = [
28
+ "ViTHybridForImageClassification",
29
+ "ViTHybridModel",
30
+ "ViTHybridPreTrainedModel",
31
+ ]
32
+
33
+ try:
34
+ if not is_vision_available():
35
+ raise OptionalDependencyNotAvailable()
36
+ except OptionalDependencyNotAvailable:
37
+ pass
38
+ else:
39
+ _import_structure["image_processing_vit_hybrid"] = ["ViTHybridImageProcessor"]
40
+
41
+
42
+ if TYPE_CHECKING:
43
+ from .configuration_vit_hybrid import ViTHybridConfig
44
+
45
+ try:
46
+ if not is_torch_available():
47
+ raise OptionalDependencyNotAvailable()
48
+ except OptionalDependencyNotAvailable:
49
+ pass
50
+ else:
51
+ from .modeling_vit_hybrid import (
52
+ ViTHybridForImageClassification,
53
+ ViTHybridModel,
54
+ ViTHybridPreTrainedModel,
55
+ )
56
+
57
+ try:
58
+ if not is_vision_available():
59
+ raise OptionalDependencyNotAvailable()
60
+ except OptionalDependencyNotAvailable:
61
+ pass
62
+ else:
63
+ from .image_processing_vit_hybrid import ViTHybridImageProcessor
64
+
65
+
66
+ else:
67
+ import sys
68
+
69
+ sys.modules[__name__] = _LazyModule(__name__, globals()["__file__"], _import_structure, module_spec=__spec__)
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/vit_hybrid/configuration_vit_hybrid.py ADDED
@@ -0,0 +1,169 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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
+ """ViT Hybrid model configuration"""
16
+
17
+ from ....configuration_utils import PretrainedConfig
18
+ from ....utils import logging
19
+ from ...auto.configuration_auto import CONFIG_MAPPING
20
+ from ...bit import BitConfig
21
+
22
+
23
+ logger = logging.get_logger(__name__)
24
+
25
+
26
+ class ViTHybridConfig(PretrainedConfig):
27
+ r"""
28
+ This is the configuration class to store the configuration of a [`ViTHybridModel`]. It is used to instantiate a ViT
29
+ Hybrid model according to the specified arguments, defining the model architecture. Instantiating a configuration
30
+ with the defaults will yield a similar configuration to that of the ViT Hybrid
31
+ [google/vit-hybrid-base-bit-384](https://huggingface.co/google/vit-hybrid-base-bit-384) 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
+ backbone_config (`Union[Dict[str, Any], PretrainedConfig]`, *optional*):
38
+ The configuration of the backbone in a dictionary or the config object of the backbone.
39
+ backbone (`str`, *optional*):
40
+ Name of backbone to use when `backbone_config` is `None`. If `use_pretrained_backbone` is `True`, this
41
+ will load the corresponding pretrained weights from the timm or transformers library. If `use_pretrained_backbone`
42
+ is `False`, this loads the backbone's config and uses that to initialize the backbone with random weights.
43
+ use_pretrained_backbone (`bool`, *optional*, defaults to `False`):
44
+ Whether to use pretrained weights for the backbone.
45
+ use_timm_backbone (`bool`, *optional*, defaults to `False`):
46
+ Whether to load `backbone` from the timm library. If `False`, the backbone is loaded from the transformers
47
+ library.
48
+ backbone_kwargs (`dict`, *optional*):
49
+ Keyword arguments to be passed to AutoBackbone when loading from a checkpoint
50
+ e.g. `{'out_indices': (0, 1, 2, 3)}`. Cannot be specified if `backbone_config` is set.
51
+ hidden_size (`int`, *optional*, defaults to 768):
52
+ Dimensionality of the encoder layers and the pooler layer.
53
+ num_hidden_layers (`int`, *optional*, defaults to 12):
54
+ Number of hidden layers in the Transformer encoder.
55
+ num_attention_heads (`int`, *optional*, defaults to 12):
56
+ Number of attention heads for each attention layer in the Transformer encoder.
57
+ intermediate_size (`int`, *optional*, defaults to 3072):
58
+ Dimensionality of the "intermediate" (i.e., feed-forward) layer in the Transformer encoder.
59
+ hidden_act (`str` or `function`, *optional*, defaults to `"gelu"`):
60
+ The non-linear activation function (function or string) in the encoder and pooler. If string, `"gelu"`,
61
+ `"relu"`, `"selu"` and `"gelu_new"` are supported.
62
+ hidden_dropout_prob (`float`, *optional*, defaults to 0.0):
63
+ The dropout probability for all fully connected layers in the embeddings, encoder, and pooler.
64
+ attention_probs_dropout_prob (`float`, *optional*, defaults to 0.0):
65
+ The dropout ratio for the attention probabilities.
66
+ initializer_range (`float`, *optional*, defaults to 0.02):
67
+ The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
68
+ layer_norm_eps (`float`, *optional*, defaults to 1e-12):
69
+ The epsilon used by the layer normalization layers.
70
+ image_size (`int`, *optional*, defaults to 224):
71
+ The size (resolution) of each image.
72
+ patch_size (`int`, *optional*, defaults to 1):
73
+ The size (resolution) of each patch.
74
+ num_channels (`int`, *optional*, defaults to 3):
75
+ The number of input channels.
76
+ backbone_featmap_shape (`List[int]`, *optional*, defaults to `[1, 1024, 24, 24]`):
77
+ Used only for the `hybrid` embedding type. The shape of the feature maps of the backbone.
78
+ qkv_bias (`bool`, *optional*, defaults to `True`):
79
+ Whether to add a bias to the queries, keys and values.
80
+
81
+ Example:
82
+
83
+ ```python
84
+ >>> from transformers import ViTHybridConfig, ViTHybridModel
85
+
86
+ >>> # Initializing a ViT Hybrid vit-hybrid-base-bit-384 style configuration
87
+ >>> configuration = ViTHybridConfig()
88
+
89
+ >>> # Initializing a model (with random weights) from the vit-hybrid-base-bit-384 style configuration
90
+ >>> model = ViTHybridModel(configuration)
91
+
92
+ >>> # Accessing the model configuration
93
+ >>> configuration = model.config
94
+ ```"""
95
+
96
+ model_type = "vit-hybrid"
97
+
98
+ def __init__(
99
+ self,
100
+ backbone_config=None,
101
+ backbone=None,
102
+ use_pretrained_backbone=False,
103
+ use_timm_backbone=False,
104
+ backbone_kwargs=None,
105
+ hidden_size=768,
106
+ num_hidden_layers=12,
107
+ num_attention_heads=12,
108
+ intermediate_size=3072,
109
+ hidden_act="gelu",
110
+ hidden_dropout_prob=0.0,
111
+ attention_probs_dropout_prob=0.0,
112
+ initializer_range=0.02,
113
+ layer_norm_eps=1e-12,
114
+ image_size=224,
115
+ patch_size=1,
116
+ num_channels=3,
117
+ backbone_featmap_shape=[1, 1024, 24, 24],
118
+ qkv_bias=True,
119
+ **kwargs,
120
+ ):
121
+ super().__init__(**kwargs)
122
+ if use_pretrained_backbone:
123
+ raise ValueError("Pretrained backbones are not supported yet.")
124
+
125
+ if backbone_config is not None and backbone is not None:
126
+ raise ValueError("You can't specify both `backbone` and `backbone_config`.")
127
+
128
+ if backbone_config is None and backbone is None:
129
+ logger.info("`backbone_config` is `None`. Initializing the config with a `BiT` backbone.")
130
+ backbone_config = {
131
+ "global_padding": "same",
132
+ "layer_type": "bottleneck",
133
+ "depths": [3, 4, 9],
134
+ "out_features": ["stage3"],
135
+ "embedding_dynamic_padding": True,
136
+ }
137
+
138
+ if backbone_kwargs is not None and backbone_kwargs and backbone_config is not None:
139
+ raise ValueError("You can't specify both `backbone_kwargs` and `backbone_config`.")
140
+
141
+ if isinstance(backbone_config, dict):
142
+ if "model_type" in backbone_config:
143
+ backbone_config_class = CONFIG_MAPPING[backbone_config["model_type"]]
144
+ else:
145
+ logger.info(
146
+ "`model_type` is not found in `backbone_config`. Use `Bit` as the backbone configuration class."
147
+ )
148
+ backbone_config_class = BitConfig
149
+ backbone_config = backbone_config_class(**backbone_config)
150
+
151
+ self.backbone_featmap_shape = backbone_featmap_shape
152
+ self.backbone_config = backbone_config
153
+ self.backbone = backbone
154
+ self.use_pretrained_backbone = use_pretrained_backbone
155
+ self.use_timm_backbone = use_timm_backbone
156
+ self.backbone_kwargs = backbone_kwargs
157
+ self.hidden_size = hidden_size
158
+ self.num_hidden_layers = num_hidden_layers
159
+ self.num_attention_heads = num_attention_heads
160
+ self.intermediate_size = intermediate_size
161
+ self.hidden_act = hidden_act
162
+ self.hidden_dropout_prob = hidden_dropout_prob
163
+ self.attention_probs_dropout_prob = attention_probs_dropout_prob
164
+ self.initializer_range = initializer_range
165
+ self.layer_norm_eps = layer_norm_eps
166
+ self.image_size = image_size
167
+ self.patch_size = patch_size
168
+ self.num_channels = num_channels
169
+ self.qkv_bias = qkv_bias
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/vit_hybrid/convert_vit_hybrid_timm_to_pytorch.py ADDED
@@ -0,0 +1,282 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 ViT hybrid checkpoints from the timm library."""
16
+
17
+ import argparse
18
+ import json
19
+ from pathlib import Path
20
+
21
+ import requests
22
+ import timm
23
+ import torch
24
+ from huggingface_hub import hf_hub_download
25
+ from PIL import Image
26
+ from timm.data import resolve_data_config
27
+ from timm.data.transforms_factory import create_transform
28
+
29
+ from transformers import (
30
+ BitConfig,
31
+ ViTHybridConfig,
32
+ ViTHybridForImageClassification,
33
+ ViTHybridImageProcessor,
34
+ ViTHybridModel,
35
+ )
36
+ from transformers.image_utils import PILImageResampling
37
+ from transformers.utils import logging
38
+
39
+
40
+ logging.set_verbosity_info()
41
+ logger = logging.get_logger(__name__)
42
+
43
+
44
+ # here we list all keys to be renamed (original name on the left, our name on the right)
45
+ def create_rename_keys(config, base_model=False):
46
+ rename_keys = []
47
+
48
+ # fmt: off
49
+ # stem:
50
+ rename_keys.append(("cls_token", "vit.embeddings.cls_token"))
51
+ rename_keys.append(("pos_embed", "vit.embeddings.position_embeddings"))
52
+
53
+ rename_keys.append(("patch_embed.proj.weight", "vit.embeddings.patch_embeddings.projection.weight"))
54
+ rename_keys.append(("patch_embed.proj.bias", "vit.embeddings.patch_embeddings.projection.bias"))
55
+
56
+ # backbone
57
+ rename_keys.append(("patch_embed.backbone.stem.conv.weight", "vit.embeddings.patch_embeddings.backbone.bit.embedder.convolution.weight"))
58
+ rename_keys.append(("patch_embed.backbone.stem.norm.weight", "vit.embeddings.patch_embeddings.backbone.bit.embedder.norm.weight"))
59
+ rename_keys.append(("patch_embed.backbone.stem.norm.bias", "vit.embeddings.patch_embeddings.backbone.bit.embedder.norm.bias"))
60
+
61
+ for stage_idx in range(len(config.backbone_config.depths)):
62
+ for layer_idx in range(config.backbone_config.depths[stage_idx]):
63
+ rename_keys.append((f"patch_embed.backbone.stages.{stage_idx}.blocks.{layer_idx}.conv1.weight", f"vit.embeddings.patch_embeddings.backbone.bit.encoder.stages.{stage_idx}.layers.{layer_idx}.conv1.weight"))
64
+ rename_keys.append((f"patch_embed.backbone.stages.{stage_idx}.blocks.{layer_idx}.norm1.weight", f"vit.embeddings.patch_embeddings.backbone.bit.encoder.stages.{stage_idx}.layers.{layer_idx}.norm1.weight"))
65
+ rename_keys.append((f"patch_embed.backbone.stages.{stage_idx}.blocks.{layer_idx}.norm1.bias", f"vit.embeddings.patch_embeddings.backbone.bit.encoder.stages.{stage_idx}.layers.{layer_idx}.norm1.bias"))
66
+ rename_keys.append((f"patch_embed.backbone.stages.{stage_idx}.blocks.{layer_idx}.conv2.weight", f"vit.embeddings.patch_embeddings.backbone.bit.encoder.stages.{stage_idx}.layers.{layer_idx}.conv2.weight"))
67
+ rename_keys.append((f"patch_embed.backbone.stages.{stage_idx}.blocks.{layer_idx}.norm2.weight", f"vit.embeddings.patch_embeddings.backbone.bit.encoder.stages.{stage_idx}.layers.{layer_idx}.norm2.weight"))
68
+ rename_keys.append((f"patch_embed.backbone.stages.{stage_idx}.blocks.{layer_idx}.norm2.bias", f"vit.embeddings.patch_embeddings.backbone.bit.encoder.stages.{stage_idx}.layers.{layer_idx}.norm2.bias"))
69
+ rename_keys.append((f"patch_embed.backbone.stages.{stage_idx}.blocks.{layer_idx}.conv3.weight", f"vit.embeddings.patch_embeddings.backbone.bit.encoder.stages.{stage_idx}.layers.{layer_idx}.conv3.weight"))
70
+ rename_keys.append((f"patch_embed.backbone.stages.{stage_idx}.blocks.{layer_idx}.norm3.weight", f"vit.embeddings.patch_embeddings.backbone.bit.encoder.stages.{stage_idx}.layers.{layer_idx}.norm3.weight"))
71
+ rename_keys.append((f"patch_embed.backbone.stages.{stage_idx}.blocks.{layer_idx}.norm3.bias", f"vit.embeddings.patch_embeddings.backbone.bit.encoder.stages.{stage_idx}.layers.{layer_idx}.norm3.bias"))
72
+
73
+ rename_keys.append((f"patch_embed.backbone.stages.{stage_idx}.blocks.0.downsample.conv.weight", f"vit.embeddings.patch_embeddings.backbone.bit.encoder.stages.{stage_idx}.layers.0.downsample.conv.weight"))
74
+ rename_keys.append((f"patch_embed.backbone.stages.{stage_idx}.blocks.0.downsample.norm.weight", f"vit.embeddings.patch_embeddings.backbone.bit.encoder.stages.{stage_idx}.layers.0.downsample.norm.weight"))
75
+ rename_keys.append((f"patch_embed.backbone.stages.{stage_idx}.blocks.0.downsample.norm.bias", f"vit.embeddings.patch_embeddings.backbone.bit.encoder.stages.{stage_idx}.layers.0.downsample.norm.bias"))
76
+
77
+ # transformer encoder
78
+ for i in range(config.num_hidden_layers):
79
+ # encoder layers: output projection, 2 feedforward neural networks and 2 layernorms
80
+ rename_keys.append((f"blocks.{i}.norm1.weight", f"vit.encoder.layer.{i}.layernorm_before.weight"))
81
+ rename_keys.append((f"blocks.{i}.norm1.bias", f"vit.encoder.layer.{i}.layernorm_before.bias"))
82
+ rename_keys.append((f"blocks.{i}.attn.proj.weight", f"vit.encoder.layer.{i}.attention.output.dense.weight"))
83
+ rename_keys.append((f"blocks.{i}.attn.proj.bias", f"vit.encoder.layer.{i}.attention.output.dense.bias"))
84
+ rename_keys.append((f"blocks.{i}.norm2.weight", f"vit.encoder.layer.{i}.layernorm_after.weight"))
85
+ rename_keys.append((f"blocks.{i}.norm2.bias", f"vit.encoder.layer.{i}.layernorm_after.bias"))
86
+ rename_keys.append((f"blocks.{i}.mlp.fc1.weight", f"vit.encoder.layer.{i}.intermediate.dense.weight"))
87
+ rename_keys.append((f"blocks.{i}.mlp.fc1.bias", f"vit.encoder.layer.{i}.intermediate.dense.bias"))
88
+ rename_keys.append((f"blocks.{i}.mlp.fc2.weight", f"vit.encoder.layer.{i}.output.dense.weight"))
89
+ rename_keys.append((f"blocks.{i}.mlp.fc2.bias", f"vit.encoder.layer.{i}.output.dense.bias"))
90
+
91
+ if base_model:
92
+ # layernorm + pooler
93
+ rename_keys.extend(
94
+ [
95
+ ("norm.weight", "layernorm.weight"),
96
+ ("norm.bias", "layernorm.bias"),
97
+ ("pre_logits.fc.weight", "pooler.dense.weight"),
98
+ ("pre_logits.fc.bias", "pooler.dense.bias"),
99
+ ]
100
+ )
101
+
102
+ # if just the base model, we should remove "vit" from all keys that start with "vit"
103
+ rename_keys = [(pair[0], pair[1][4:]) if pair[1].startswith("vit") else pair for pair in rename_keys]
104
+ else:
105
+ # layernorm + classification head
106
+ rename_keys.extend(
107
+ [
108
+ ("norm.weight", "vit.layernorm.weight"),
109
+ ("norm.bias", "vit.layernorm.bias"),
110
+ ("head.weight", "classifier.weight"),
111
+ ("head.bias", "classifier.bias"),
112
+ ]
113
+ )
114
+ # fmt: on
115
+
116
+ return rename_keys
117
+
118
+
119
+ # we split up the matrix of each encoder layer into queries, keys and values
120
+ def read_in_q_k_v(state_dict, config, base_model=False):
121
+ for i in range(config.num_hidden_layers):
122
+ if base_model:
123
+ prefix = ""
124
+ else:
125
+ prefix = "vit."
126
+ # read in weights + bias of input projection layer (in timm, this is a single matrix + bias)
127
+ in_proj_weight = state_dict.pop(f"blocks.{i}.attn.qkv.weight")
128
+ in_proj_bias = state_dict.pop(f"blocks.{i}.attn.qkv.bias")
129
+ # next, add query, keys and values (in that order) to the state dict
130
+ state_dict[f"{prefix}encoder.layer.{i}.attention.attention.query.weight"] = in_proj_weight[
131
+ : config.hidden_size, :
132
+ ]
133
+ state_dict[f"{prefix}encoder.layer.{i}.attention.attention.query.bias"] = in_proj_bias[: config.hidden_size]
134
+ state_dict[f"{prefix}encoder.layer.{i}.attention.attention.key.weight"] = in_proj_weight[
135
+ config.hidden_size : config.hidden_size * 2, :
136
+ ]
137
+ state_dict[f"{prefix}encoder.layer.{i}.attention.attention.key.bias"] = in_proj_bias[
138
+ config.hidden_size : config.hidden_size * 2
139
+ ]
140
+ state_dict[f"{prefix}encoder.layer.{i}.attention.attention.value.weight"] = in_proj_weight[
141
+ -config.hidden_size :, :
142
+ ]
143
+ state_dict[f"{prefix}encoder.layer.{i}.attention.attention.value.bias"] = in_proj_bias[-config.hidden_size :]
144
+
145
+
146
+ def remove_classification_head_(state_dict):
147
+ ignore_keys = ["head.weight", "head.bias"]
148
+ for k in ignore_keys:
149
+ state_dict.pop(k, None)
150
+
151
+
152
+ def rename_key(dct, old, new):
153
+ val = dct.pop(old)
154
+ dct[new] = val
155
+
156
+
157
+ # We will verify our results on an image of cute cats
158
+ def prepare_img():
159
+ url = "http://images.cocodataset.org/val2017/000000039769.jpg"
160
+ im = Image.open(requests.get(url, stream=True).raw)
161
+ return im
162
+
163
+
164
+ @torch.no_grad()
165
+ def convert_vit_checkpoint(vit_name, pytorch_dump_folder_path, push_to_hub=False):
166
+ """
167
+ Copy/paste/tweak model's weights to our ViT structure.
168
+ """
169
+
170
+ # define default ViT hybrid configuration
171
+ backbone_config = BitConfig(
172
+ global_padding="same",
173
+ layer_type="bottleneck",
174
+ depths=(3, 4, 9),
175
+ out_features=["stage3"],
176
+ embedding_dynamic_padding=True,
177
+ )
178
+ config = ViTHybridConfig(backbone_config=backbone_config, image_size=384, num_labels=1000)
179
+ base_model = False
180
+
181
+ # load original model from timm
182
+ timm_model = timm.create_model(vit_name, pretrained=True)
183
+ timm_model.eval()
184
+
185
+ # load state_dict of original model, remove and rename some keys
186
+ state_dict = timm_model.state_dict()
187
+ if base_model:
188
+ remove_classification_head_(state_dict)
189
+ rename_keys = create_rename_keys(config, base_model)
190
+ for src, dest in rename_keys:
191
+ rename_key(state_dict, src, dest)
192
+ read_in_q_k_v(state_dict, config, base_model)
193
+
194
+ repo_id = "huggingface/label-files"
195
+ filename = "imagenet-1k-id2label.json"
196
+ id2label = json.load(open(hf_hub_download(repo_id, filename, repo_type="dataset"), "r"))
197
+ id2label = {int(k): v for k, v in id2label.items()}
198
+ config.id2label = id2label
199
+ config.label2id = {v: k for k, v in id2label.items()}
200
+
201
+ # load HuggingFace model
202
+ if vit_name[-5:] == "in21k":
203
+ model = ViTHybridModel(config).eval()
204
+ else:
205
+ model = ViTHybridForImageClassification(config).eval()
206
+ model.load_state_dict(state_dict)
207
+
208
+ # create image processor
209
+ transform = create_transform(**resolve_data_config({}, model=timm_model))
210
+ timm_transforms = transform.transforms
211
+
212
+ pillow_resamplings = {
213
+ "bilinear": PILImageResampling.BILINEAR,
214
+ "bicubic": PILImageResampling.BICUBIC,
215
+ "nearest": PILImageResampling.NEAREST,
216
+ }
217
+
218
+ processor = ViTHybridImageProcessor(
219
+ do_resize=True,
220
+ size={"shortest_edge": timm_transforms[0].size},
221
+ resample=pillow_resamplings[timm_transforms[0].interpolation.value],
222
+ do_center_crop=True,
223
+ crop_size={"height": timm_transforms[1].size[0], "width": timm_transforms[1].size[1]},
224
+ do_normalize=True,
225
+ image_mean=timm_transforms[-1].mean.tolist(),
226
+ image_std=timm_transforms[-1].std.tolist(),
227
+ )
228
+
229
+ image = prepare_img()
230
+ timm_pixel_values = transform(image).unsqueeze(0)
231
+ pixel_values = processor(image, return_tensors="pt").pixel_values
232
+
233
+ # verify pixel values
234
+ assert torch.allclose(timm_pixel_values, pixel_values)
235
+
236
+ # verify logits
237
+ with torch.no_grad():
238
+ outputs = model(pixel_values)
239
+ logits = outputs.logits
240
+
241
+ print("Predicted class:", logits.argmax(-1).item())
242
+ if base_model:
243
+ timm_pooled_output = timm_model.forward_features(pixel_values)
244
+ assert timm_pooled_output.shape == outputs.pooler_output.shape
245
+ assert torch.allclose(timm_pooled_output, outputs.pooler_output, atol=1e-3)
246
+ else:
247
+ timm_logits = timm_model(pixel_values)
248
+ assert timm_logits.shape == outputs.logits.shape
249
+ assert torch.allclose(timm_logits, outputs.logits, atol=1e-3)
250
+ print("Looks ok!")
251
+
252
+ if pytorch_dump_folder_path is not None:
253
+ Path(pytorch_dump_folder_path).mkdir(exist_ok=True)
254
+ print(f"Saving model {vit_name} to {pytorch_dump_folder_path}")
255
+ model.save_pretrained(pytorch_dump_folder_path)
256
+ print(f"Saving processor to {pytorch_dump_folder_path}")
257
+ processor.save_pretrained(pytorch_dump_folder_path)
258
+
259
+ if push_to_hub:
260
+ print(f"Pushing model and processor to the hub {vit_name}")
261
+ model.push_to_hub(f"ybelkada/{vit_name}")
262
+ processor.push_to_hub(f"ybelkada/{vit_name}")
263
+
264
+
265
+ if __name__ == "__main__":
266
+ parser = argparse.ArgumentParser()
267
+ # Required parameters
268
+ parser.add_argument(
269
+ "--vit_name",
270
+ default="vit_base_r50_s16_384",
271
+ type=str,
272
+ help="Name of the hybrid ViT timm model you'd like to convert.",
273
+ )
274
+ parser.add_argument(
275
+ "--pytorch_dump_folder_path", default=None, type=str, help="Path to the output PyTorch model directory."
276
+ )
277
+ parser.add_argument(
278
+ "--push_to_hub", action="store_true", help="Whether to upload the model to the HuggingFace hub."
279
+ )
280
+
281
+ args = parser.parse_args()
282
+ convert_vit_checkpoint(args.vit_name, args.pytorch_dump_folder_path, args.push_to_hub)
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/vit_hybrid/image_processing_vit_hybrid.py ADDED
@@ -0,0 +1,338 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 ViT hybrid."""
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
+ convert_to_rgb,
24
+ get_resize_output_image_size,
25
+ resize,
26
+ to_channel_dimension_format,
27
+ )
28
+ from ....image_utils import (
29
+ OPENAI_CLIP_MEAN,
30
+ OPENAI_CLIP_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_kwargs,
40
+ validate_preprocess_arguments,
41
+ )
42
+ from ....utils import TensorType, is_vision_available, logging
43
+
44
+
45
+ logger = logging.get_logger(__name__)
46
+
47
+
48
+ if is_vision_available():
49
+ import PIL
50
+
51
+
52
+ class ViTHybridImageProcessor(BaseImageProcessor):
53
+ r"""
54
+ Constructs a ViT Hybrid image processor.
55
+
56
+ Args:
57
+ do_resize (`bool`, *optional*, defaults to `True`):
58
+ Whether to resize the image's (height, width) dimensions to the specified `size`. Can be overridden by
59
+ `do_resize` in the `preprocess` method.
60
+ size (`Dict[str, int]` *optional*, defaults to `{"shortest_edge": 224}`):
61
+ Size of the image after resizing. The shortest edge of the image is resized to size["shortest_edge"], with
62
+ the longest edge resized to keep the input aspect ratio. Can be overridden by `size` in the `preprocess`
63
+ method.
64
+ resample (`PILImageResampling`, *optional*, defaults to `PILImageResampling.BICUBIC`):
65
+ Resampling filter to use if resizing the image. Can be overridden by `resample` in the `preprocess` method.
66
+ do_center_crop (`bool`, *optional*, defaults to `True`):
67
+ Whether to center crop the image to the specified `crop_size`. Can be overridden by `do_center_crop` in the
68
+ `preprocess` method.
69
+ crop_size (`Dict[str, int]` *optional*, defaults to 224):
70
+ Size of the output image after applying `center_crop`. Can be overridden by `crop_size` in the `preprocess`
71
+ method.
72
+ do_rescale (`bool`, *optional*, defaults to `True`):
73
+ Whether to rescale the image by the specified scale `rescale_factor`. Can be overridden by `do_rescale` in
74
+ the `preprocess` method.
75
+ rescale_factor (`int` or `float`, *optional*, defaults to `1/255`):
76
+ Scale factor to use if rescaling the image. Can be overridden by `rescale_factor` in the `preprocess`
77
+ method.
78
+ do_normalize:
79
+ Whether to normalize the image. Can be overridden by `do_normalize` in the `preprocess` method.
80
+ image_mean (`float` or `List[float]`, *optional*, defaults to `IMAGENET_STANDARD_MEAN`):
81
+ Mean to use if normalizing the image. This is a float or list of floats the length of the number of
82
+ channels in the image. Can be overridden by the `image_mean` parameter in the `preprocess` method.
83
+ image_std (`float` or `List[float]`, *optional*, defaults to `IMAGENET_STANDARD_STD`):
84
+ Standard deviation to use if normalizing the image. This is a float or list of floats the length of the
85
+ number of channels in the image. Can be overridden by the `image_std` parameter in the `preprocess` method.
86
+ Can be overridden by the `image_std` parameter in the `preprocess` method.
87
+ do_convert_rgb (`bool`, *optional*, defaults to `True`):
88
+ Whether to convert the image to RGB.
89
+ """
90
+
91
+ model_input_names = ["pixel_values"]
92
+
93
+ def __init__(
94
+ self,
95
+ do_resize: bool = True,
96
+ size: Dict[str, int] = None,
97
+ resample: PILImageResampling = PILImageResampling.BICUBIC,
98
+ do_center_crop: bool = True,
99
+ crop_size: Dict[str, int] = None,
100
+ do_rescale: bool = True,
101
+ rescale_factor: Union[int, float] = 1 / 255,
102
+ do_normalize: bool = True,
103
+ image_mean: Optional[Union[float, List[float]]] = None,
104
+ image_std: Optional[Union[float, List[float]]] = None,
105
+ do_convert_rgb: bool = True,
106
+ **kwargs,
107
+ ) -> None:
108
+ super().__init__(**kwargs)
109
+ size = size if size is not None else {"shortest_edge": 224}
110
+ size = get_size_dict(size, default_to_square=False)
111
+ crop_size = crop_size if crop_size is not None else {"height": 224, "width": 224}
112
+ crop_size = get_size_dict(crop_size, default_to_square=True, param_name="crop_size")
113
+
114
+ self.do_resize = do_resize
115
+ self.size = size
116
+ self.resample = resample
117
+ self.do_center_crop = do_center_crop
118
+ self.crop_size = crop_size
119
+ self.do_rescale = do_rescale
120
+ self.rescale_factor = rescale_factor
121
+ self.do_normalize = do_normalize
122
+ self.image_mean = image_mean if image_mean is not None else OPENAI_CLIP_MEAN
123
+ self.image_std = image_std if image_std is not None else OPENAI_CLIP_STD
124
+ self.do_convert_rgb = do_convert_rgb
125
+ self._valid_processor_keys = [
126
+ "images",
127
+ "do_resize",
128
+ "size",
129
+ "resample",
130
+ "do_center_crop",
131
+ "crop_size",
132
+ "do_rescale",
133
+ "rescale_factor",
134
+ "do_normalize",
135
+ "image_mean",
136
+ "image_std",
137
+ "do_convert_rgb",
138
+ "return_tensors",
139
+ "data_format",
140
+ "input_data_format",
141
+ ]
142
+
143
+ def resize(
144
+ self,
145
+ image: np.ndarray,
146
+ size: Dict[str, int],
147
+ resample: PILImageResampling = PILImageResampling.BICUBIC,
148
+ data_format: Optional[Union[str, ChannelDimension]] = None,
149
+ input_data_format: Optional[Union[str, ChannelDimension]] = None,
150
+ **kwargs,
151
+ ) -> np.ndarray:
152
+ """
153
+ Resize an image. The shortest edge of the image is resized to size["shortest_edge"], with the longest edge
154
+ resized to keep the input aspect ratio.
155
+
156
+ Args:
157
+ image (`np.ndarray`):
158
+ Image to resize.
159
+ size (`Dict[str, int]`):
160
+ Size of the output image.
161
+ resample (`PILImageResampling`, *optional*, defaults to `PILImageResampling.BICUBIC`):
162
+ Resampling filter to use when resiizing the image.
163
+ data_format (`str` or `ChannelDimension`, *optional*):
164
+ The channel dimension format of the image. If not provided, it will be the same as the input image.
165
+ input_data_format (`ChannelDimension` or `str`, *optional*):
166
+ The channel dimension format of the input image. If not provided, it will be inferred.
167
+ """
168
+ default_to_square = True
169
+ if "shortest_edge" in size:
170
+ size = size["shortest_edge"]
171
+ default_to_square = False
172
+ elif "height" in size and "width" in size:
173
+ size = (size["height"], size["width"])
174
+ else:
175
+ raise ValueError("Size must contain either 'shortest_edge' or 'height' and 'width'.")
176
+
177
+ output_size = get_resize_output_image_size(
178
+ image,
179
+ size=size,
180
+ default_to_square=default_to_square,
181
+ input_data_format=input_data_format,
182
+ )
183
+ return resize(
184
+ image,
185
+ size=output_size,
186
+ resample=resample,
187
+ data_format=data_format,
188
+ input_data_format=input_data_format,
189
+ **kwargs,
190
+ )
191
+
192
+ def preprocess(
193
+ self,
194
+ images: ImageInput,
195
+ do_resize: bool = None,
196
+ size: Dict[str, int] = None,
197
+ resample: PILImageResampling = None,
198
+ do_center_crop: bool = None,
199
+ crop_size: int = None,
200
+ do_rescale: bool = None,
201
+ rescale_factor: float = None,
202
+ do_normalize: bool = None,
203
+ image_mean: Optional[Union[float, List[float]]] = None,
204
+ image_std: Optional[Union[float, List[float]]] = None,
205
+ do_convert_rgb: bool = None,
206
+ return_tensors: Optional[Union[str, TensorType]] = None,
207
+ data_format: Optional[ChannelDimension] = ChannelDimension.FIRST,
208
+ input_data_format: Optional[Union[str, ChannelDimension]] = None,
209
+ **kwargs,
210
+ ) -> PIL.Image.Image:
211
+ """
212
+ Preprocess an image or batch of images.
213
+
214
+ Args:
215
+ images (`ImageInput`):
216
+ Image to preprocess. Expects a single or batch of images with pixel values ranging from 0 to 255. If
217
+ passing in images with pixel values between 0 and 1, set `do_rescale=False`.
218
+ do_resize (`bool`, *optional*, defaults to `self.do_resize`):
219
+ Whether to resize the image.
220
+ size (`Dict[str, int]`, *optional*, defaults to `self.size`):
221
+ Size of the image after resizing. Shortest edge of the image is resized to size["shortest_edge"], with
222
+ the longest edge resized to keep the input aspect ratio.
223
+ resample (`int`, *optional*, defaults to `self.resample`):
224
+ Resampling filter to use if resizing the image. This can be one of the enum `PILImageResampling`. Only
225
+ has an effect if `do_resize` is set to `True`.
226
+ do_center_crop (`bool`, *optional*, defaults to `self.do_center_crop`):
227
+ Whether to center crop the image.
228
+ crop_size (`Dict[str, int]`, *optional*, defaults to `self.crop_size`):
229
+ Size of the center crop. Only has an effect if `do_center_crop` is set to `True`.
230
+ do_rescale (`bool`, *optional*, defaults to `self.do_rescale`):
231
+ Whether to rescale the image.
232
+ rescale_factor (`float`, *optional*, defaults to `self.rescale_factor`):
233
+ Rescale factor to rescale the image by if `do_rescale` is set to `True`.
234
+ do_normalize (`bool`, *optional*, defaults to `self.do_normalize`):
235
+ Whether to normalize the image.
236
+ image_mean (`float` or `List[float]`, *optional*, defaults to `self.image_mean`):
237
+ Image mean to use for normalization. Only has an effect if `do_normalize` is set to `True`.
238
+ image_std (`float` or `List[float]`, *optional*, defaults to `self.image_std`):
239
+ Image standard deviation to use for normalization. Only has an effect if `do_normalize` is set to
240
+ `True`.
241
+ do_convert_rgb (`bool`, *optional*, defaults to `self.do_convert_rgb`):
242
+ Whether to convert the image to RGB.
243
+ return_tensors (`str` or `TensorType`, *optional*):
244
+ The type of tensors to return. Can be one of:
245
+ - Unset: Return a list of `np.ndarray`.
246
+ - `TensorType.TENSORFLOW` or `'tf'`: Return a batch of type `tf.Tensor`.
247
+ - `TensorType.PYTORCH` or `'pt'`: Return a batch of type `torch.Tensor`.
248
+ - `TensorType.NUMPY` or `'np'`: Return a batch of type `np.ndarray`.
249
+ - `TensorType.JAX` or `'jax'`: Return a batch of type `jax.numpy.ndarray`.
250
+ data_format (`ChannelDimension` or `str`, *optional*, defaults to `ChannelDimension.FIRST`):
251
+ The channel dimension format for the output image. Can be one of:
252
+ - `ChannelDimension.FIRST`: image in (num_channels, height, width) format.
253
+ - `ChannelDimension.LAST`: image in (height, width, num_channels) format.
254
+ - Unset: defaults to the channel dimension format of the input image.
255
+ input_data_format (`ChannelDimension` or `str`, *optional*):
256
+ The channel dimension format for the input image. If unset, the channel dimension format is inferred
257
+ from the input image. Can be one of:
258
+ - `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format.
259
+ - `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format.
260
+ - `"none"` or `ChannelDimension.NONE`: image in (height, width) format.
261
+ """
262
+ do_resize = do_resize if do_resize is not None else self.do_resize
263
+ size = size if size is not None else self.size
264
+ size = get_size_dict(size, param_name="size", default_to_square=False)
265
+ resample = resample if resample is not None else self.resample
266
+ do_center_crop = do_center_crop if do_center_crop is not None else self.do_center_crop
267
+ crop_size = crop_size if crop_size is not None else self.crop_size
268
+ crop_size = get_size_dict(crop_size, param_name="crop_size", default_to_square=True)
269
+ do_rescale = do_rescale if do_rescale is not None else self.do_rescale
270
+ rescale_factor = rescale_factor if rescale_factor is not None else self.rescale_factor
271
+ do_normalize = do_normalize if do_normalize is not None else self.do_normalize
272
+ image_mean = image_mean if image_mean is not None else self.image_mean
273
+ image_std = image_std if image_std is not None else self.image_std
274
+ do_convert_rgb = do_convert_rgb if do_convert_rgb is not None else self.do_convert_rgb
275
+
276
+ images = make_list_of_images(images)
277
+
278
+ validate_kwargs(captured_kwargs=kwargs.keys(), valid_processor_keys=self._valid_processor_keys)
279
+
280
+ if not valid_images(images):
281
+ raise ValueError(
282
+ "Invalid image type. Must be of type PIL.Image.Image, numpy.ndarray, "
283
+ "torch.Tensor, tf.Tensor or jax.ndarray."
284
+ )
285
+ validate_preprocess_arguments(
286
+ do_rescale=do_rescale,
287
+ rescale_factor=rescale_factor,
288
+ do_normalize=do_normalize,
289
+ image_mean=image_mean,
290
+ image_std=image_std,
291
+ do_center_crop=do_center_crop,
292
+ crop_size=crop_size,
293
+ do_resize=do_resize,
294
+ size=size,
295
+ resample=resample,
296
+ )
297
+
298
+ # PIL RGBA images are converted to RGB
299
+ if do_convert_rgb:
300
+ images = [convert_to_rgb(image) for image in images]
301
+
302
+ # All transformations expect numpy arrays.
303
+ images = [to_numpy_array(image) for image in images]
304
+
305
+ if do_rescale and is_scaled_image(images[0]):
306
+ logger.warning_once(
307
+ "It looks like you are trying to rescale already rescaled images. If the input"
308
+ " images have pixel values between 0 and 1, set `do_rescale=False` to avoid rescaling them again."
309
+ )
310
+
311
+ if input_data_format is None:
312
+ # We assume that all images have the same channel dimension format.
313
+ input_data_format = infer_channel_dimension_format(images[0])
314
+
315
+ all_images = []
316
+ for image in images:
317
+ if do_resize:
318
+ image = self.resize(image=image, size=size, resample=resample, input_data_format=input_data_format)
319
+
320
+ if do_center_crop:
321
+ image = self.center_crop(image=image, size=crop_size, input_data_format=input_data_format)
322
+
323
+ if do_rescale:
324
+ image = self.rescale(image=image, scale=rescale_factor, input_data_format=input_data_format)
325
+
326
+ if do_normalize:
327
+ image = self.normalize(
328
+ image=image, mean=image_mean, std=image_std, input_data_format=input_data_format
329
+ )
330
+
331
+ all_images.append(image)
332
+ images = [
333
+ to_channel_dimension_format(image, data_format, input_channel_dim=input_data_format)
334
+ for image in all_images
335
+ ]
336
+
337
+ data = {"pixel_values": images}
338
+ return BatchFeature(data=data, tensor_type=return_tensors)
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/vit_hybrid/modeling_vit_hybrid.py ADDED
@@ -0,0 +1,767 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2022 Google AI, Ross Wightman, 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 ViT Hybrid model."""
16
+
17
+ import collections.abc
18
+ import math
19
+ from typing import Dict, List, Optional, Set, 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 ....activations import ACT2FN
27
+ from ....modeling_outputs import BaseModelOutput, BaseModelOutputWithPooling, ImageClassifierOutput
28
+ from ....modeling_utils import PreTrainedModel
29
+ from ....pytorch_utils import find_pruneable_heads_and_indices, prune_linear_layer
30
+ from ....utils import (
31
+ add_code_sample_docstrings,
32
+ add_start_docstrings,
33
+ add_start_docstrings_to_model_forward,
34
+ logging,
35
+ torch_int,
36
+ )
37
+ from ....utils.backbone_utils import load_backbone
38
+ from .configuration_vit_hybrid import ViTHybridConfig
39
+
40
+
41
+ logger = logging.get_logger(__name__)
42
+
43
+ # General docstring
44
+ _CONFIG_FOR_DOC = "ViTHybridConfig"
45
+
46
+ # Base docstring
47
+ _CHECKPOINT_FOR_DOC = "google/vit-hybrid-base-bit-384"
48
+ _EXPECTED_OUTPUT_SHAPE = [1, 197, 768]
49
+
50
+ # Image classification docstring
51
+ _IMAGE_CLASS_CHECKPOINT = "google/vit-hybrid-base-bit-384"
52
+ _IMAGE_CLASS_EXPECTED_OUTPUT = "tabby, tabby cat"
53
+
54
+
55
+ class ViTHybridEmbeddings(nn.Module):
56
+ """
57
+ Construct the CLS token, position and patch embeddings. Optionally, also the mask token.
58
+ """
59
+
60
+ def __init__(self, config: ViTHybridConfig, use_mask_token: bool = False) -> None:
61
+ super().__init__()
62
+
63
+ self.cls_token = nn.Parameter(torch.randn(1, 1, config.hidden_size))
64
+ self.mask_token = nn.Parameter(torch.zeros(1, 1, config.hidden_size)) if use_mask_token else None
65
+ self.patch_embeddings = ViTHybridPatchEmbeddings(config)
66
+ num_patches = self.patch_embeddings.num_patches
67
+ self.position_embeddings = nn.Parameter(torch.randn(1, num_patches + 1, config.hidden_size))
68
+ self.dropout = nn.Dropout(config.hidden_dropout_prob)
69
+ self.patch_size = config.patch_size
70
+ self.config = config
71
+
72
+ # Copied from transformers.models.vit.modeling_vit.ViTEmbeddings.interpolate_pos_encoding
73
+ def interpolate_pos_encoding(self, embeddings: torch.Tensor, height: int, width: int) -> torch.Tensor:
74
+ """
75
+ This method allows to interpolate the pre-trained position encodings, to be able to use the model on higher resolution
76
+ images. This method is also adapted to support torch.jit tracing.
77
+
78
+ Adapted from:
79
+ - https://github.com/facebookresearch/dino/blob/de9ee3df6cf39fac952ab558447af1fa1365362a/vision_transformer.py#L174-L194, and
80
+ - https://github.com/facebookresearch/dinov2/blob/e1277af2ba9496fbadf7aec6eba56e8d882d1e35/dinov2/models/vision_transformer.py#L179-L211
81
+ """
82
+
83
+ num_patches = embeddings.shape[1] - 1
84
+ num_positions = self.position_embeddings.shape[1] - 1
85
+
86
+ # always interpolate when tracing to ensure the exported model works for dynamic input shapes
87
+ if not torch.jit.is_tracing() and num_patches == num_positions and height == width:
88
+ return self.position_embeddings
89
+
90
+ class_pos_embed = self.position_embeddings[:, :1]
91
+ patch_pos_embed = self.position_embeddings[:, 1:]
92
+
93
+ dim = embeddings.shape[-1]
94
+
95
+ new_height = height // self.patch_size
96
+ new_width = width // self.patch_size
97
+
98
+ sqrt_num_positions = torch_int(num_positions**0.5)
99
+ patch_pos_embed = patch_pos_embed.reshape(1, sqrt_num_positions, sqrt_num_positions, dim)
100
+ patch_pos_embed = patch_pos_embed.permute(0, 3, 1, 2)
101
+
102
+ patch_pos_embed = nn.functional.interpolate(
103
+ patch_pos_embed,
104
+ size=(new_height, new_width),
105
+ mode="bicubic",
106
+ align_corners=False,
107
+ )
108
+
109
+ patch_pos_embed = patch_pos_embed.permute(0, 2, 3, 1).view(1, -1, dim)
110
+
111
+ return torch.cat((class_pos_embed, patch_pos_embed), dim=1)
112
+
113
+ def forward(
114
+ self,
115
+ pixel_values: torch.Tensor,
116
+ bool_masked_pos: Optional[torch.BoolTensor] = None,
117
+ interpolate_pos_encoding: bool = False,
118
+ ) -> torch.Tensor:
119
+ batch_size, num_channels, height, width = pixel_values.shape
120
+ embeddings = self.patch_embeddings(pixel_values, interpolate_pos_encoding=interpolate_pos_encoding)
121
+
122
+ if bool_masked_pos is not None:
123
+ seq_length = embeddings.shape[1]
124
+ mask_tokens = self.mask_token.expand(batch_size, seq_length, -1)
125
+ # replace the masked visual tokens by mask_tokens
126
+ mask = bool_masked_pos.unsqueeze(-1).type_as(mask_tokens)
127
+ embeddings = embeddings * (1.0 - mask) + mask_tokens * mask
128
+
129
+ # add the [CLS] token to the embedded patch tokens
130
+ cls_tokens = self.cls_token.expand(batch_size, -1, -1)
131
+ embeddings = torch.cat((cls_tokens, embeddings), dim=1)
132
+
133
+ # add positional encoding to each token
134
+ if interpolate_pos_encoding:
135
+ embeddings = embeddings + self.interpolate_pos_encoding(embeddings, height, width)
136
+ else:
137
+ embeddings = embeddings + self.position_embeddings
138
+
139
+ embeddings = self.dropout(embeddings)
140
+
141
+ return embeddings
142
+
143
+
144
+ class ViTHybridPatchEmbeddings(nn.Module):
145
+ """
146
+ This class turns `pixel_values` of shape `(batch_size, num_channels, height, width)` into the initial
147
+ `hidden_states` (patch embeddings) of shape `(batch_size, seq_length, hidden_size)` to be consumed by a
148
+ Transformer.
149
+ """
150
+
151
+ def __init__(self, config, feature_size=None):
152
+ super().__init__()
153
+ image_size, patch_size = config.image_size, config.patch_size
154
+ num_channels, hidden_size = config.num_channels, config.hidden_size
155
+
156
+ image_size = image_size if isinstance(image_size, collections.abc.Iterable) else (image_size, image_size)
157
+ patch_size = patch_size if isinstance(patch_size, collections.abc.Iterable) else (patch_size, patch_size)
158
+
159
+ self.backbone = load_backbone(config)
160
+ if self.backbone.config.model_type != "bit":
161
+ raise ValueError(f"Backbone model type {self.backbone.model_type} is not supported.")
162
+ feature_dim = self.backbone.channels[-1]
163
+
164
+ if feature_size is None:
165
+ feature_map = config.backbone_featmap_shape
166
+
167
+ feature_size = feature_map[-2:]
168
+ feature_dim = feature_map[1]
169
+ else:
170
+ feature_size = (
171
+ feature_size if isinstance(feature_size, collections.abc.Iterable) else (feature_size, feature_size)
172
+ )
173
+ feature_dim = self.backbone.channels[-1]
174
+
175
+ self.grid_size = (feature_size[0] // patch_size[0], feature_size[1] // patch_size[1])
176
+ self.num_patches = self.grid_size[0] * self.grid_size[1]
177
+ self.image_size = image_size
178
+ self.patch_size = patch_size
179
+ self.num_channels = num_channels
180
+
181
+ self.projection = nn.Conv2d(feature_dim, hidden_size, kernel_size=patch_size, stride=patch_size)
182
+
183
+ def forward(self, pixel_values: torch.Tensor, interpolate_pos_encoding: bool = False) -> torch.Tensor:
184
+ _, num_channels, height, width = pixel_values.shape
185
+ if num_channels != self.num_channels:
186
+ raise ValueError(
187
+ "Make sure that the channel dimension of the pixel values match with the one set in the configuration."
188
+ )
189
+ if not interpolate_pos_encoding:
190
+ if height != self.image_size[0] or width != self.image_size[1]:
191
+ raise ValueError(
192
+ f"Input image size ({height}*{width}) doesn't match model"
193
+ f" ({self.image_size[0]}*{self.image_size[1]})."
194
+ )
195
+
196
+ features = self.backbone(pixel_values).feature_maps[-1]
197
+ embeddings = self.projection(features).flatten(2).transpose(1, 2)
198
+
199
+ return embeddings
200
+
201
+
202
+ class ViTHybridSelfAttention(nn.Module):
203
+ def __init__(self, config: ViTHybridConfig) -> None:
204
+ super().__init__()
205
+ if config.hidden_size % config.num_attention_heads != 0 and not hasattr(config, "embedding_size"):
206
+ raise ValueError(
207
+ f"The hidden size {config.hidden_size} is not a multiple of the number of attention "
208
+ f"heads {config.num_attention_heads}."
209
+ )
210
+
211
+ self.num_attention_heads = config.num_attention_heads
212
+ self.attention_head_size = int(config.hidden_size / config.num_attention_heads)
213
+ self.all_head_size = self.num_attention_heads * self.attention_head_size
214
+
215
+ self.query = nn.Linear(config.hidden_size, self.all_head_size, bias=config.qkv_bias)
216
+ self.key = nn.Linear(config.hidden_size, self.all_head_size, bias=config.qkv_bias)
217
+ self.value = nn.Linear(config.hidden_size, self.all_head_size, bias=config.qkv_bias)
218
+
219
+ self.dropout = nn.Dropout(config.attention_probs_dropout_prob)
220
+
221
+ def transpose_for_scores(self, x: torch.Tensor) -> torch.Tensor:
222
+ new_x_shape = x.size()[:-1] + (self.num_attention_heads, self.attention_head_size)
223
+ x = x.view(new_x_shape)
224
+ return x.permute(0, 2, 1, 3)
225
+
226
+ def forward(
227
+ self, hidden_states, head_mask: Optional[torch.Tensor] = None, output_attentions: bool = False
228
+ ) -> Union[Tuple[torch.Tensor, torch.Tensor], Tuple[torch.Tensor]]:
229
+ mixed_query_layer = self.query(hidden_states)
230
+
231
+ key_layer = self.transpose_for_scores(self.key(hidden_states))
232
+ value_layer = self.transpose_for_scores(self.value(hidden_states))
233
+ query_layer = self.transpose_for_scores(mixed_query_layer)
234
+
235
+ # Take the dot product between "query" and "key" to get the raw attention scores.
236
+ attention_scores = torch.matmul(query_layer, key_layer.transpose(-1, -2))
237
+
238
+ attention_scores = attention_scores / math.sqrt(self.attention_head_size)
239
+
240
+ # Normalize the attention scores to probabilities.
241
+ attention_probs = nn.functional.softmax(attention_scores, dim=-1)
242
+
243
+ # This is actually dropping out entire tokens to attend to, which might
244
+ # seem a bit unusual, but is taken from the original Transformer paper.
245
+ attention_probs = self.dropout(attention_probs)
246
+
247
+ # Mask heads if we want to
248
+ if head_mask is not None:
249
+ attention_probs = attention_probs * head_mask
250
+
251
+ context_layer = torch.matmul(attention_probs, value_layer)
252
+
253
+ context_layer = context_layer.permute(0, 2, 1, 3).contiguous()
254
+ new_context_layer_shape = context_layer.size()[:-2] + (self.all_head_size,)
255
+ context_layer = context_layer.view(new_context_layer_shape)
256
+
257
+ outputs = (context_layer, attention_probs) if output_attentions else (context_layer,)
258
+
259
+ return outputs
260
+
261
+
262
+ class ViTHybridSdpaSelfAttention(ViTHybridSelfAttention):
263
+ def __init__(self, config: ViTHybridConfig) -> None:
264
+ super().__init__(config)
265
+ self.attention_probs_dropout_prob = config.attention_probs_dropout_prob
266
+
267
+ def forward(
268
+ self, hidden_states, head_mask: Optional[torch.Tensor] = None, output_attentions: bool = False
269
+ ) -> Union[Tuple[torch.Tensor, torch.Tensor], Tuple[torch.Tensor]]:
270
+ mixed_query_layer = self.query(hidden_states)
271
+
272
+ key_layer = self.transpose_for_scores(self.key(hidden_states))
273
+ value_layer = self.transpose_for_scores(self.value(hidden_states))
274
+ query_layer = self.transpose_for_scores(mixed_query_layer)
275
+
276
+ context_layer = torch.nn.functional.scaled_dot_product_attention(
277
+ query_layer,
278
+ key_layer,
279
+ value_layer,
280
+ head_mask,
281
+ self.attention_probs_dropout_prob if self.training else 0.0,
282
+ is_causal=False,
283
+ scale=None,
284
+ )
285
+
286
+ context_layer = context_layer.permute(0, 2, 1, 3).contiguous()
287
+ new_context_layer_shape = context_layer.size()[:-2] + (self.all_head_size,)
288
+ context_layer = context_layer.view(new_context_layer_shape)
289
+
290
+ return context_layer, None
291
+
292
+
293
+ class ViTHybridSelfOutput(nn.Module):
294
+ """
295
+ The residual connection is defined in ViTHybridLayer instead of here (as is the case with other models), due to the
296
+ layernorm applied before each block.
297
+ """
298
+
299
+ def __init__(self, config: ViTHybridConfig) -> None:
300
+ super().__init__()
301
+ self.dense = nn.Linear(config.hidden_size, config.hidden_size)
302
+ self.dropout = nn.Dropout(config.hidden_dropout_prob)
303
+
304
+ def forward(self, hidden_states: torch.Tensor, input_tensor: torch.Tensor) -> torch.Tensor:
305
+ hidden_states = self.dense(hidden_states)
306
+ hidden_states = self.dropout(hidden_states)
307
+
308
+ return hidden_states
309
+
310
+
311
+ class ViTHybridAttention(nn.Module):
312
+ def __init__(self, config: ViTHybridConfig) -> None:
313
+ super().__init__()
314
+ self.attention = ViTHybridSelfAttention(config)
315
+ self.output = ViTHybridSelfOutput(config)
316
+ self.pruned_heads = set()
317
+
318
+ def prune_heads(self, heads: Set[int]) -> None:
319
+ if len(heads) == 0:
320
+ return
321
+ heads, index = find_pruneable_heads_and_indices(
322
+ heads, self.attention.num_attention_heads, self.attention.attention_head_size, self.pruned_heads
323
+ )
324
+
325
+ # Prune linear layers
326
+ self.attention.query = prune_linear_layer(self.attention.query, index)
327
+ self.attention.key = prune_linear_layer(self.attention.key, index)
328
+ self.attention.value = prune_linear_layer(self.attention.value, index)
329
+ self.output.dense = prune_linear_layer(self.output.dense, index, dim=1)
330
+
331
+ # Update hyper params and store pruned heads
332
+ self.attention.num_attention_heads = self.attention.num_attention_heads - len(heads)
333
+ self.attention.all_head_size = self.attention.attention_head_size * self.attention.num_attention_heads
334
+ self.pruned_heads = self.pruned_heads.union(heads)
335
+
336
+ def forward(
337
+ self,
338
+ hidden_states: torch.Tensor,
339
+ head_mask: Optional[torch.Tensor] = None,
340
+ output_attentions: bool = False,
341
+ ) -> Union[Tuple[torch.Tensor, torch.Tensor], Tuple[torch.Tensor]]:
342
+ self_outputs = self.attention(hidden_states, head_mask, output_attentions)
343
+
344
+ attention_output = self.output(self_outputs[0], hidden_states)
345
+
346
+ outputs = (attention_output,) + self_outputs[1:] # add attentions if we output them
347
+ return outputs
348
+
349
+
350
+ class ViTHybridSdpaAttention(ViTHybridAttention):
351
+ def __init__(self, config: ViTHybridConfig) -> None:
352
+ super().__init__(config)
353
+ self.attention = ViTHybridSdpaSelfAttention(config)
354
+
355
+
356
+ class ViTHybridIntermediate(nn.Module):
357
+ def __init__(self, config: ViTHybridConfig) -> None:
358
+ super().__init__()
359
+ self.dense = nn.Linear(config.hidden_size, config.intermediate_size)
360
+ if isinstance(config.hidden_act, str):
361
+ self.intermediate_act_fn = ACT2FN[config.hidden_act]
362
+ else:
363
+ self.intermediate_act_fn = config.hidden_act
364
+
365
+ def forward(self, hidden_states: torch.Tensor) -> torch.Tensor:
366
+ hidden_states = self.dense(hidden_states)
367
+ hidden_states = self.intermediate_act_fn(hidden_states)
368
+
369
+ return hidden_states
370
+
371
+
372
+ class ViTHybridOutput(nn.Module):
373
+ def __init__(self, config: ViTHybridConfig) -> None:
374
+ super().__init__()
375
+ self.dense = nn.Linear(config.intermediate_size, config.hidden_size)
376
+ self.dropout = nn.Dropout(config.hidden_dropout_prob)
377
+
378
+ def forward(self, hidden_states: torch.Tensor, input_tensor: torch.Tensor) -> torch.Tensor:
379
+ hidden_states = self.dense(hidden_states)
380
+ hidden_states = self.dropout(hidden_states)
381
+
382
+ hidden_states = hidden_states + input_tensor
383
+
384
+ return hidden_states
385
+
386
+
387
+ VIT_HYBRID_ATTENTION_CLASSES = {
388
+ "eager": ViTHybridAttention,
389
+ "sdpa": ViTHybridSdpaAttention,
390
+ }
391
+
392
+
393
+ class ViTHybridLayer(nn.Module):
394
+ """This corresponds to the Block class in the timm implementation."""
395
+
396
+ def __init__(self, config: ViTHybridConfig) -> None:
397
+ super().__init__()
398
+ self.chunk_size_feed_forward = config.chunk_size_feed_forward
399
+ self.seq_len_dim = 1
400
+ self.attention = VIT_HYBRID_ATTENTION_CLASSES[config._attn_implementation](config)
401
+ self.intermediate = ViTHybridIntermediate(config)
402
+ self.output = ViTHybridOutput(config)
403
+ self.layernorm_before = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps)
404
+ self.layernorm_after = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps)
405
+
406
+ def forward(
407
+ self,
408
+ hidden_states: torch.Tensor,
409
+ head_mask: Optional[torch.Tensor] = None,
410
+ output_attentions: bool = False,
411
+ ) -> Union[Tuple[torch.Tensor, torch.Tensor], Tuple[torch.Tensor]]:
412
+ self_attention_outputs = self.attention(
413
+ self.layernorm_before(hidden_states), # in ViTHybrid, layernorm is applied before self-attention
414
+ head_mask,
415
+ output_attentions=output_attentions,
416
+ )
417
+ attention_output = self_attention_outputs[0]
418
+ outputs = self_attention_outputs[1:] # add self attentions if we output attention weights
419
+
420
+ # first residual connection
421
+ # We assign to correct device for `accelerate`, check: https://github.com/huggingface/transformers/pull/20705/
422
+ hidden_states = attention_output + hidden_states.to(attention_output.device)
423
+
424
+ # in ViTHybrid, layernorm is also applied after self-attention
425
+ layer_output = self.layernorm_after(hidden_states)
426
+ layer_output = self.intermediate(layer_output)
427
+
428
+ # second residual connection is done here
429
+ layer_output = self.output(layer_output, hidden_states)
430
+
431
+ outputs = (layer_output,) + outputs
432
+
433
+ return outputs
434
+
435
+
436
+ class ViTHybridEncoder(nn.Module):
437
+ def __init__(self, config: ViTHybridConfig) -> None:
438
+ super().__init__()
439
+ self.config = config
440
+ self.layer = nn.ModuleList([ViTHybridLayer(config) for _ in range(config.num_hidden_layers)])
441
+ self.gradient_checkpointing = False
442
+
443
+ def forward(
444
+ self,
445
+ hidden_states: torch.Tensor,
446
+ head_mask: Optional[torch.Tensor] = None,
447
+ output_attentions: bool = False,
448
+ output_hidden_states: bool = False,
449
+ return_dict: bool = True,
450
+ ) -> Union[tuple, BaseModelOutput]:
451
+ all_hidden_states = () if output_hidden_states else None
452
+ all_self_attentions = () if output_attentions else None
453
+
454
+ for i, layer_module in enumerate(self.layer):
455
+ if output_hidden_states:
456
+ all_hidden_states = all_hidden_states + (hidden_states,)
457
+
458
+ layer_head_mask = head_mask[i] if head_mask is not None else None
459
+
460
+ if self.gradient_checkpointing and self.training:
461
+ layer_outputs = self._gradient_checkpointing_func(
462
+ layer_module.__call__,
463
+ hidden_states,
464
+ layer_head_mask,
465
+ output_attentions,
466
+ )
467
+ else:
468
+ layer_outputs = layer_module(hidden_states, layer_head_mask, output_attentions)
469
+
470
+ hidden_states = layer_outputs[0]
471
+
472
+ if output_attentions:
473
+ all_self_attentions = all_self_attentions + (layer_outputs[1],)
474
+
475
+ if output_hidden_states:
476
+ all_hidden_states = all_hidden_states + (hidden_states,)
477
+
478
+ if not return_dict:
479
+ return tuple(v for v in [hidden_states, all_hidden_states, all_self_attentions] if v is not None)
480
+ return BaseModelOutput(
481
+ last_hidden_state=hidden_states,
482
+ hidden_states=all_hidden_states,
483
+ attentions=all_self_attentions,
484
+ )
485
+
486
+
487
+ class ViTHybridPreTrainedModel(PreTrainedModel):
488
+ """
489
+ An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained
490
+ models.
491
+ """
492
+
493
+ config_class = ViTHybridConfig
494
+ base_model_prefix = "vit"
495
+ main_input_name = "pixel_values"
496
+ supports_gradient_checkpointing = True
497
+ _no_split_modules = ["ViTHybridEmbeddings", "ViTHybridLayer"]
498
+ _supports_sdpa = True
499
+
500
+ def _init_weights(self, module: Union[nn.Linear, nn.Conv2d, nn.LayerNorm]) -> None:
501
+ """Initialize the weights"""
502
+ if isinstance(module, (nn.Linear, nn.Conv2d)):
503
+ # Upcast the input in `fp32` and cast it back to desired `dtype` to avoid
504
+ # `trunc_normal_cpu` not implemented in `half` issues
505
+ module.weight.data = nn.init.trunc_normal_(
506
+ module.weight.data.to(torch.float32), mean=0.0, std=self.config.initializer_range
507
+ ).to(module.weight.dtype)
508
+ if module.bias is not None:
509
+ module.bias.data.zero_()
510
+ elif isinstance(module, nn.LayerNorm):
511
+ module.bias.data.zero_()
512
+ module.weight.data.fill_(1.0)
513
+ elif isinstance(module, ViTHybridEmbeddings):
514
+ module.position_embeddings.data = nn.init.trunc_normal_(
515
+ module.position_embeddings.data.to(torch.float32),
516
+ mean=0.0,
517
+ std=self.config.initializer_range,
518
+ ).to(module.position_embeddings.dtype)
519
+
520
+ module.cls_token.data = nn.init.trunc_normal_(
521
+ module.cls_token.data.to(torch.float32),
522
+ mean=0.0,
523
+ std=self.config.initializer_range,
524
+ ).to(module.cls_token.dtype)
525
+
526
+
527
+ VIT_START_DOCSTRING = r"""
528
+ This model is a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass. Use it
529
+ as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage and
530
+ behavior.
531
+
532
+ Parameters:
533
+ config ([`ViTHybridConfig`]): Model configuration class with all the parameters of the model.
534
+ Initializing with a config file does not load the weights associated with the model, only the
535
+ configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights.
536
+ """
537
+
538
+ VIT_INPUTS_DOCSTRING = r"""
539
+ Args:
540
+ pixel_values (`torch.FloatTensor` of shape `(batch_size, num_channels, height, width)`):
541
+ Pixel values. Pixel values can be obtained using [`AutoImageProcessor`]. See
542
+ [`ViTHybridImageProcessor.__call__`] for details.
543
+
544
+ head_mask (`torch.FloatTensor` of shape `(num_heads,)` or `(num_layers, num_heads)`, *optional*):
545
+ Mask to nullify selected heads of the self-attention modules. Mask values selected in `[0, 1]`:
546
+
547
+ - 1 indicates the head is **not masked**,
548
+ - 0 indicates the head is **masked**.
549
+
550
+ output_attentions (`bool`, *optional*):
551
+ Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned
552
+ tensors for more detail.
553
+ output_hidden_states (`bool`, *optional*):
554
+ Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
555
+ more detail.
556
+ return_dict (`bool`, *optional*):
557
+ Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
558
+ """
559
+
560
+
561
+ @add_start_docstrings(
562
+ "The bare ViT Hybrid Model transformer outputting raw hidden-states without any specific head on top.",
563
+ VIT_START_DOCSTRING,
564
+ )
565
+ class ViTHybridModel(ViTHybridPreTrainedModel):
566
+ def __init__(self, config: ViTHybridConfig, add_pooling_layer: bool = True, use_mask_token: bool = False):
567
+ super().__init__(config)
568
+ self.config = config
569
+
570
+ self.embeddings = ViTHybridEmbeddings(config, use_mask_token=use_mask_token)
571
+ self.encoder = ViTHybridEncoder(config)
572
+
573
+ self.layernorm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps)
574
+ self.pooler = ViTHybridPooler(config) if add_pooling_layer else None
575
+
576
+ # Initialize weights and apply final processing
577
+ self.post_init()
578
+
579
+ def get_input_embeddings(self) -> ViTHybridPatchEmbeddings:
580
+ return self.embeddings.patch_embeddings
581
+
582
+ def _prune_heads(self, heads_to_prune: Dict[int, List[int]]) -> None:
583
+ """
584
+ Prunes heads of the model. heads_to_prune: dict of {layer_num: list of heads to prune in this layer} See base
585
+ class PreTrainedModel
586
+ """
587
+ for layer, heads in heads_to_prune.items():
588
+ self.encoder.layer[layer].attention.prune_heads(heads)
589
+
590
+ @add_start_docstrings_to_model_forward(VIT_INPUTS_DOCSTRING)
591
+ @add_code_sample_docstrings(
592
+ checkpoint=_CHECKPOINT_FOR_DOC,
593
+ output_type=BaseModelOutputWithPooling,
594
+ config_class=_CONFIG_FOR_DOC,
595
+ modality="vision",
596
+ expected_output=_EXPECTED_OUTPUT_SHAPE,
597
+ )
598
+ def forward(
599
+ self,
600
+ pixel_values: Optional[torch.Tensor] = None,
601
+ bool_masked_pos: Optional[torch.BoolTensor] = None,
602
+ head_mask: Optional[torch.Tensor] = None,
603
+ output_attentions: Optional[bool] = None,
604
+ output_hidden_states: Optional[bool] = None,
605
+ interpolate_pos_encoding: Optional[bool] = None,
606
+ return_dict: Optional[bool] = None,
607
+ ) -> Union[Tuple, BaseModelOutputWithPooling]:
608
+ r"""
609
+ bool_masked_pos (`torch.BoolTensor` of shape `(batch_size, num_patches)`, *optional*):
610
+ Boolean masked positions. Indicates which patches are masked (1) and which aren't (0).
611
+ """
612
+ output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
613
+ output_hidden_states = (
614
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
615
+ )
616
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
617
+
618
+ if pixel_values is None:
619
+ raise ValueError("You have to specify pixel_values")
620
+
621
+ # Prepare head mask if needed
622
+ # 1.0 in head_mask indicate we keep the head
623
+ # attention_probs has shape bsz x n_heads x N x N
624
+ # input head_mask has shape [num_heads] or [num_hidden_layers x num_heads]
625
+ # and head_mask is converted to shape [num_hidden_layers x batch x num_heads x seq_length x seq_length]
626
+ head_mask = self.get_head_mask(head_mask, self.config.num_hidden_layers)
627
+
628
+ # TODO: maybe have a cleaner way to cast the input (from `ImageProcessor` side?)
629
+ expected_dtype = self.embeddings.patch_embeddings.projection.weight.dtype
630
+ if pixel_values.dtype != expected_dtype:
631
+ pixel_values = pixel_values.to(expected_dtype)
632
+
633
+ embedding_output = self.embeddings(
634
+ pixel_values, bool_masked_pos=bool_masked_pos, interpolate_pos_encoding=interpolate_pos_encoding
635
+ )
636
+
637
+ encoder_outputs = self.encoder(
638
+ embedding_output,
639
+ head_mask=head_mask,
640
+ output_attentions=output_attentions,
641
+ output_hidden_states=output_hidden_states,
642
+ return_dict=return_dict,
643
+ )
644
+ sequence_output = encoder_outputs[0]
645
+ sequence_output = self.layernorm(sequence_output)
646
+ pooled_output = self.pooler(sequence_output) if self.pooler is not None else None
647
+
648
+ if not return_dict:
649
+ head_outputs = (sequence_output, pooled_output) if pooled_output is not None else (sequence_output,)
650
+ return head_outputs + encoder_outputs[1:]
651
+
652
+ return BaseModelOutputWithPooling(
653
+ last_hidden_state=sequence_output,
654
+ pooler_output=pooled_output,
655
+ hidden_states=encoder_outputs.hidden_states,
656
+ attentions=encoder_outputs.attentions,
657
+ )
658
+
659
+
660
+ class ViTHybridPooler(nn.Module):
661
+ def __init__(self, config: ViTHybridConfig):
662
+ super().__init__()
663
+ self.dense = nn.Linear(config.hidden_size, config.hidden_size)
664
+ self.activation = nn.Tanh()
665
+
666
+ def forward(self, hidden_states):
667
+ # We "pool" the model by simply taking the hidden state corresponding
668
+ # to the first token.
669
+ first_token_tensor = hidden_states[:, 0]
670
+ pooled_output = self.dense(first_token_tensor)
671
+ pooled_output = self.activation(pooled_output)
672
+ return pooled_output
673
+
674
+
675
+ @add_start_docstrings(
676
+ """
677
+ ViT Hybrid Model transformer with an image classification head on top (a linear layer on top of the final hidden
678
+ state of the [CLS] token) e.g. for ImageNet.
679
+ """,
680
+ VIT_START_DOCSTRING,
681
+ )
682
+ class ViTHybridForImageClassification(ViTHybridPreTrainedModel):
683
+ def __init__(self, config: ViTHybridConfig) -> None:
684
+ super().__init__(config)
685
+
686
+ self.num_labels = config.num_labels
687
+ self.vit = ViTHybridModel(config, add_pooling_layer=False)
688
+
689
+ # Classifier head
690
+ self.classifier = nn.Linear(config.hidden_size, config.num_labels) if config.num_labels > 0 else nn.Identity()
691
+
692
+ # Initialize weights and apply final processing
693
+ self.post_init()
694
+
695
+ @add_start_docstrings_to_model_forward(VIT_INPUTS_DOCSTRING)
696
+ @add_code_sample_docstrings(
697
+ checkpoint=_IMAGE_CLASS_CHECKPOINT,
698
+ output_type=ImageClassifierOutput,
699
+ config_class=_CONFIG_FOR_DOC,
700
+ expected_output=_IMAGE_CLASS_EXPECTED_OUTPUT,
701
+ )
702
+ def forward(
703
+ self,
704
+ pixel_values: Optional[torch.Tensor] = None,
705
+ head_mask: Optional[torch.Tensor] = None,
706
+ labels: Optional[torch.Tensor] = None,
707
+ output_attentions: Optional[bool] = None,
708
+ output_hidden_states: Optional[bool] = None,
709
+ interpolate_pos_encoding: Optional[bool] = None,
710
+ return_dict: Optional[bool] = None,
711
+ ) -> Union[tuple, ImageClassifierOutput]:
712
+ r"""
713
+ labels (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
714
+ Labels for computing the image classification/regression loss. Indices should be in `[0, ...,
715
+ config.num_labels - 1]`. If `config.num_labels == 1` a regression loss is computed (Mean-Square loss), If
716
+ `config.num_labels > 1` a classification loss is computed (Cross-Entropy).
717
+ """
718
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
719
+
720
+ outputs = self.vit(
721
+ pixel_values,
722
+ head_mask=head_mask,
723
+ output_attentions=output_attentions,
724
+ output_hidden_states=output_hidden_states,
725
+ interpolate_pos_encoding=interpolate_pos_encoding,
726
+ return_dict=return_dict,
727
+ )
728
+
729
+ sequence_output = outputs[0]
730
+
731
+ logits = self.classifier(sequence_output[:, 0, :])
732
+
733
+ loss = None
734
+ if labels is not None:
735
+ # move labels to correct device to enable model parallelism
736
+ labels = labels.to(logits.device)
737
+ if self.config.problem_type is None:
738
+ if self.num_labels == 1:
739
+ self.config.problem_type = "regression"
740
+ elif self.num_labels > 1 and (labels.dtype == torch.long or labels.dtype == torch.int):
741
+ self.config.problem_type = "single_label_classification"
742
+ else:
743
+ self.config.problem_type = "multi_label_classification"
744
+
745
+ if self.config.problem_type == "regression":
746
+ loss_fct = MSELoss()
747
+ if self.num_labels == 1:
748
+ loss = loss_fct(logits.squeeze(), labels.squeeze())
749
+ else:
750
+ loss = loss_fct(logits, labels)
751
+ elif self.config.problem_type == "single_label_classification":
752
+ loss_fct = CrossEntropyLoss()
753
+ loss = loss_fct(logits.view(-1, self.num_labels), labels.view(-1))
754
+ elif self.config.problem_type == "multi_label_classification":
755
+ loss_fct = BCEWithLogitsLoss()
756
+ loss = loss_fct(logits, labels)
757
+
758
+ if not return_dict:
759
+ output = (logits,) + outputs[1:]
760
+ return ((loss,) + output) if loss is not None else output
761
+
762
+ return ImageClassifierOutput(
763
+ loss=loss,
764
+ logits=logits,
765
+ hidden_states=outputs.hidden_states,
766
+ attentions=outputs.attentions,
767
+ )
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/xlm_prophetnet/__init__.py ADDED
@@ -0,0 +1,76 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # Copyright 2020 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 OptionalDependencyNotAvailable, _LazyModule, is_sentencepiece_available, is_torch_available
17
+
18
+
19
+ _import_structure = {
20
+ "configuration_xlm_prophetnet": ["XLMProphetNetConfig"],
21
+ }
22
+
23
+ try:
24
+ if not is_sentencepiece_available():
25
+ raise OptionalDependencyNotAvailable()
26
+ except OptionalDependencyNotAvailable:
27
+ pass
28
+ else:
29
+ _import_structure["tokenization_xlm_prophetnet"] = ["XLMProphetNetTokenizer"]
30
+
31
+ try:
32
+ if not is_torch_available():
33
+ raise OptionalDependencyNotAvailable()
34
+ except OptionalDependencyNotAvailable:
35
+ pass
36
+ else:
37
+ _import_structure["modeling_xlm_prophetnet"] = [
38
+ "XLMProphetNetDecoder",
39
+ "XLMProphetNetEncoder",
40
+ "XLMProphetNetForCausalLM",
41
+ "XLMProphetNetForConditionalGeneration",
42
+ "XLMProphetNetModel",
43
+ "XLMProphetNetPreTrainedModel",
44
+ ]
45
+
46
+
47
+ if TYPE_CHECKING:
48
+ from .configuration_xlm_prophetnet import XLMProphetNetConfig
49
+
50
+ try:
51
+ if not is_sentencepiece_available():
52
+ raise OptionalDependencyNotAvailable()
53
+ except OptionalDependencyNotAvailable:
54
+ pass
55
+ else:
56
+ from .tokenization_xlm_prophetnet import XLMProphetNetTokenizer
57
+
58
+ try:
59
+ if not is_torch_available():
60
+ raise OptionalDependencyNotAvailable()
61
+ except OptionalDependencyNotAvailable:
62
+ pass
63
+ else:
64
+ from .modeling_xlm_prophetnet import (
65
+ XLMProphetNetDecoder,
66
+ XLMProphetNetEncoder,
67
+ XLMProphetNetForCausalLM,
68
+ XLMProphetNetForConditionalGeneration,
69
+ XLMProphetNetModel,
70
+ XLMProphetNetPreTrainedModel,
71
+ )
72
+
73
+ else:
74
+ import sys
75
+
76
+ sys.modules[__name__] = _LazyModule(__name__, globals()["__file__"], _import_structure, module_spec=__spec__)
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/xlm_prophetnet/configuration_xlm_prophetnet.py ADDED
@@ -0,0 +1,178 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2020 The Microsoft 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
+ """XLM-ProphetNet model configuration"""
16
+
17
+ from typing import Callable, Optional, Union
18
+
19
+ from ....configuration_utils import PretrainedConfig
20
+ from ....utils import logging
21
+
22
+
23
+ logger = logging.get_logger(__name__)
24
+
25
+
26
+ class XLMProphetNetConfig(PretrainedConfig):
27
+ r"""
28
+ This is the configuration class to store the configuration of a [`XLMProphetNetModel`]. It is used to instantiate a
29
+ XLMProphetNet 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 XLMProphetNet
31
+ [microsoft/xprophetnet-large-wiki100-cased](https://huggingface.co/microsoft/xprophetnet-large-wiki100-cased)
32
+ architecture.
33
+
34
+ Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
35
+ documentation from [`PretrainedConfig`] for more information.
36
+
37
+ Args:
38
+ activation_dropout (`float`, *optional*, defaults to 0.1):
39
+ The dropout ratio for activations inside the fully connected layer.
40
+ activation_function (`str` or `function`, *optional*, defaults to `"gelu"`):
41
+ The non-linear activation function (function or string) in the encoder and pooler. If string, `"gelu"`,
42
+ `"relu"`, `"silu"` and `"gelu_new"` are supported.
43
+ vocab_size (`int`, *optional*, defaults to 30522):
44
+ Vocabulary size of the ProphetNET model. Defines the number of different tokens that can be represented by
45
+ the `inputs_ids` passed when calling [`XLMProphetNetModel`].
46
+ hidden_size (`int`, *optional*, defaults to 1024):
47
+ Dimensionality of the layers and the pooler layer.
48
+ encoder_ffn_dim (`int`, *optional*, defaults to 4096):
49
+ Dimensionality of the "intermediate" (often named feed-forward) layer in decoder.
50
+ num_encoder_layers (`int`, *optional*, defaults to 12):
51
+ Number of encoder layers.
52
+ num_encoder_attention_heads (`int`, *optional*, defaults to 16):
53
+ Number of attention heads for each attention layer in the Transformer encoder.
54
+ decoder_ffn_dim (`int`, *optional*, defaults to 4096):
55
+ Dimensionality of the `intermediate` (often named feed-forward) layer in decoder.
56
+ num_decoder_layers (`int`, *optional*, defaults to 12):
57
+ Number of decoder layers.
58
+ num_decoder_attention_heads (`int`, *optional*, defaults to 16):
59
+ Number of attention heads for each attention layer in the Transformer decoder.
60
+ attention_dropout (`float`, *optional*, defaults to 0.1):
61
+ The dropout ratio for the attention probabilities.
62
+ dropout (`float`, *optional*, defaults to 0.1):
63
+ The dropout probability for all fully connected layers in the embeddings, encoder, and pooler.
64
+ max_position_embeddings (`int`, *optional*, defaults to 512):
65
+ The maximum sequence length that this model might ever be used with. Typically set this to something large
66
+ just in case (e.g., 512 or 1024 or 2048).
67
+ init_std (`float`, *optional*, defaults to 0.02):
68
+ The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
69
+ add_cross_attention (`bool`, *optional*, defaults to `True`):
70
+ Whether cross-attention layers should be added to the model.
71
+ is_encoder_decoder (`bool`, *optional*, defaults to `True`):
72
+ Whether this is an encoder/decoder model.
73
+ pad_token_id (`int`, *optional*, defaults to 1)
74
+ Padding token id.
75
+ bos_token_id (`int`, *optional*, defaults to 0)
76
+ Beginning of stream token id.
77
+ eos_token_id (`int`, *optional*, defaults to 2)
78
+ End of stream token id.
79
+ ngram (`int`, *optional*, defaults to 2)
80
+ Number of future tokens to predict. Set to 1 to be same as traditional Language model to predict next first
81
+ token.
82
+ num_buckets (`int`, *optional*, defaults to 32)
83
+ The number of buckets to use for each attention layer. This is for relative position calculation. See the
84
+ [T5 paper](see https://arxiv.org/abs/1910.10683) for more details.
85
+ relative_max_distance (`int`, *optional*, defaults to 128)
86
+ Relative distances greater than this number will be put into the last same bucket. This is for relative
87
+ position calculation. See the [T5 paper](see https://arxiv.org/abs/1910.10683) for more details.
88
+ disable_ngram_loss (`bool`, *optional*, defaults to `False`):
89
+ Whether be trained predicting only the next first token.
90
+ eps (`float`, *optional*, defaults to 0.0):
91
+ Controls the `epsilon` parameter value for label smoothing in the loss calculation. If set to 0, no label
92
+ smoothing is performed.
93
+ use_cache (`bool`, *optional*, defaults to `True`):
94
+ Whether or not the model should return the last key/values attentions (not used by all models).
95
+ """
96
+
97
+ model_type = "xlm-prophetnet"
98
+ keys_to_ignore_at_inference = ["past_key_values"]
99
+ attribute_map = {
100
+ "num_attention_heads": "num_encoder_attention_heads",
101
+ }
102
+
103
+ def __init__(
104
+ self,
105
+ activation_dropout: Optional[float] = 0.1,
106
+ activation_function: Optional[Union[str, Callable]] = "gelu",
107
+ vocab_size: Optional[int] = 30522,
108
+ hidden_size: Optional[int] = 1024,
109
+ encoder_ffn_dim: Optional[int] = 4096,
110
+ num_encoder_layers: Optional[int] = 12,
111
+ num_encoder_attention_heads: Optional[int] = 16,
112
+ decoder_ffn_dim: Optional[int] = 4096,
113
+ num_decoder_layers: Optional[int] = 12,
114
+ num_decoder_attention_heads: Optional[int] = 16,
115
+ attention_dropout: Optional[float] = 0.1,
116
+ dropout: Optional[float] = 0.1,
117
+ max_position_embeddings: Optional[int] = 512,
118
+ init_std: Optional[float] = 0.02,
119
+ is_encoder_decoder: Optional[bool] = True,
120
+ add_cross_attention: Optional[bool] = True,
121
+ decoder_start_token_id: Optional[int] = 0,
122
+ ngram: Optional[int] = 2,
123
+ num_buckets: Optional[int] = 32,
124
+ relative_max_distance: Optional[int] = 128,
125
+ disable_ngram_loss: Optional[bool] = False,
126
+ eps: Optional[float] = 0.0,
127
+ use_cache: Optional[bool] = True,
128
+ pad_token_id: Optional[int] = 0,
129
+ bos_token_id: Optional[int] = 1,
130
+ eos_token_id: Optional[int] = 2,
131
+ **kwargs,
132
+ ):
133
+ self.vocab_size = vocab_size
134
+ self.hidden_size = hidden_size
135
+ self.encoder_ffn_dim = encoder_ffn_dim
136
+ self.num_encoder_layers = num_encoder_layers
137
+ self.num_encoder_attention_heads = num_encoder_attention_heads
138
+ self.decoder_ffn_dim = decoder_ffn_dim
139
+ self.num_decoder_layers = num_decoder_layers
140
+ self.num_decoder_attention_heads = num_decoder_attention_heads
141
+ self.max_position_embeddings = max_position_embeddings
142
+ self.init_std = init_std # Normal(0, this parameter)
143
+ self.activation_function = activation_function
144
+
145
+ # parameters for xlmprophetnet
146
+ self.ngram = ngram
147
+ self.num_buckets = num_buckets
148
+ self.relative_max_distance = relative_max_distance
149
+ self.disable_ngram_loss = disable_ngram_loss
150
+ self.eps = eps
151
+
152
+ # 3 Types of Dropout
153
+ self.attention_dropout = attention_dropout
154
+ self.activation_dropout = activation_dropout
155
+ self.dropout = dropout
156
+
157
+ self.use_cache = use_cache
158
+
159
+ super().__init__(
160
+ pad_token_id=pad_token_id,
161
+ bos_token_id=bos_token_id,
162
+ eos_token_id=eos_token_id,
163
+ is_encoder_decoder=is_encoder_decoder,
164
+ add_cross_attention=add_cross_attention,
165
+ decoder_start_token_id=decoder_start_token_id,
166
+ **kwargs,
167
+ )
168
+
169
+ @property
170
+ def num_hidden_layers(self) -> int:
171
+ return self.num_encoder_layers + self.num_decoder_layers
172
+
173
+ @num_hidden_layers.setter
174
+ def num_hidden_layers(self, value):
175
+ raise NotImplementedError(
176
+ "This model does not support the setting of `num_hidden_layers`. Please set `num_encoder_layers` and"
177
+ " `num_decoder_layers`."
178
+ )
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/xlm_prophetnet/modeling_xlm_prophetnet.py ADDED
The diff for this file is too large to render. See raw diff
 
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/deprecated/xlm_prophetnet/tokenization_xlm_prophetnet.py ADDED
@@ -0,0 +1,323 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2020 The Microsoft 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
+
16
+ import collections
17
+ import os
18
+ from shutil import copyfile
19
+ from typing import Any, Dict, List, Optional, Tuple
20
+
21
+ from ....tokenization_utils import PreTrainedTokenizer
22
+ from ....utils import logging
23
+
24
+
25
+ logger = logging.get_logger(__name__)
26
+
27
+ SPIECE_UNDERLINE = "▁"
28
+
29
+ VOCAB_FILES_NAMES = {"vocab_file": "prophetnet.tokenizer"}
30
+
31
+
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
+ class XLMProphetNetTokenizer(PreTrainedTokenizer):
44
+ """
45
+ Adapted from [`RobertaTokenizer`] and [`XLNetTokenizer`]. Based on
46
+ [SentencePiece](https://github.com/google/sentencepiece).
47
+
48
+ This tokenizer inherits from [`PreTrainedTokenizer`] which contains most of the main methods. Users should refer to
49
+ this superclass for more information regarding those methods.
50
+
51
+ Args:
52
+ vocab_file (`str`):
53
+ Path to the vocabulary file.
54
+ bos_token (`str`, *optional*, defaults to `"[SEP]"`):
55
+ The beginning of sequence token that was used during pretraining. Can be used a sequence classifier token.
56
+
57
+ <Tip>
58
+
59
+ When building a sequence using special tokens, this is not the token that is used for the beginning of
60
+ sequence. The token used is the `cls_token`.
61
+
62
+ </Tip>
63
+
64
+ eos_token (`str`, *optional*, defaults to `"[SEP]"`):
65
+ The end of sequence token.
66
+
67
+ <Tip>
68
+
69
+ When building a sequence using special tokens, this is not the token that is used for the end of sequence.
70
+ The token used is the `sep_token`.
71
+
72
+ </Tip>
73
+
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
+ unk_token (`str`, *optional*, defaults to `"[UNK]"`):
79
+ The unknown token. A token that is not in the vocabulary cannot be converted to an ID and is set to be this
80
+ token instead.
81
+ pad_token (`str`, *optional*, defaults to `"[PAD]"`):
82
+ The token used for padding, for example when batching sequences of different lengths.
83
+ cls_token (`str`, *optional*, defaults to `"[CLS]"`):
84
+ The classifier token which is used when doing sequence classification (classification of the whole sequence
85
+ instead of per-token classification). It is the first token of the sequence when built with special tokens.
86
+ mask_token (`str`, *optional*, defaults to `"[MASK]"`):
87
+ The token used for masking values. This is the token used when training this model with masked language
88
+ modeling. This is the token which the model will try to predict.
89
+ sp_model_kwargs (`dict`, *optional*):
90
+ Will be passed to the `SentencePieceProcessor.__init__()` method. The [Python wrapper for
91
+ SentencePiece](https://github.com/google/sentencepiece/tree/master/python) can be used, among other things,
92
+ to set:
93
+
94
+ - `enable_sampling`: Enable subword regularization.
95
+ - `nbest_size`: Sampling parameters for unigram. Invalid for BPE-Dropout.
96
+
97
+ - `nbest_size = {0,1}`: No sampling is performed.
98
+ - `nbest_size > 1`: samples from the nbest_size results.
99
+ - `nbest_size < 0`: assuming that nbest_size is infinite and samples from the all hypothesis (lattice)
100
+ using forward-filtering-and-backward-sampling algorithm.
101
+
102
+ - `alpha`: Smoothing parameter for unigram sampling, and dropout probability of merge operations for
103
+ BPE-dropout.
104
+
105
+ Attributes:
106
+ sp_model (`SentencePieceProcessor`):
107
+ The *SentencePiece* processor that is used for every conversion (string, tokens and IDs).
108
+ """
109
+
110
+ vocab_files_names = VOCAB_FILES_NAMES
111
+ model_input_names = ["input_ids", "attention_mask"]
112
+
113
+ def __init__(
114
+ self,
115
+ vocab_file,
116
+ bos_token="[SEP]",
117
+ eos_token="[SEP]",
118
+ sep_token="[SEP]",
119
+ unk_token="[UNK]",
120
+ pad_token="[PAD]",
121
+ cls_token="[CLS]",
122
+ mask_token="[MASK]",
123
+ sp_model_kwargs: Optional[Dict[str, Any]] = None,
124
+ **kwargs,
125
+ ) -> None:
126
+ self.sp_model_kwargs = {} if sp_model_kwargs is None else sp_model_kwargs
127
+
128
+ try:
129
+ import sentencepiece as spm
130
+ except ImportError:
131
+ logger.warning(
132
+ "You need to install SentencePiece to use XLMRobertaTokenizer: https://github.com/google/sentencepiece"
133
+ " pip install sentencepiece"
134
+ )
135
+ raise
136
+
137
+ self.sp_model = spm.SentencePieceProcessor(**self.sp_model_kwargs)
138
+ self.sp_model.Load(str(vocab_file))
139
+ self.vocab_file = vocab_file
140
+
141
+ # Original fairseq vocab and spm vocab must be "aligned":
142
+ # Vocab | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
143
+ # -------- | ------- | ------- | ------ | ------- | --- | --- | --- | ----- | ----- | ----
144
+ # fairseq | '<s>' | '<pad>' | '</s>' | '<unk>' | ',' | '.' | '▁' | 's' | '▁de' | '-'
145
+ # spm | '<unk>' | '<s>' | '</s>' | ',' | '.' | '▁' | 's' | '▁de' | '-' | '▁a'
146
+
147
+ # put special tokens and [unused] tokens into the vocab
148
+ self.fairseq_tokens_to_ids = {"[PAD]": 0, "[CLS]": 1, "[SEP]": 2, "[UNK]": 3, "[MASK]": 4}
149
+
150
+ for i in range(10):
151
+ tok = f"[unused{i}]"
152
+ self.fairseq_tokens_to_ids[tok] = 5 + i
153
+
154
+ # The first "real" token "," has position 15 in the embedding vocab and position 3 in the spm vocab
155
+ self.fairseq_offset = 12
156
+ self.fairseq_ids_to_tokens = {v: k for k, v in self.fairseq_tokens_to_ids.items()}
157
+
158
+ # TODO ArthurZ fairseq_ids_to_tokens should be removed
159
+
160
+ super().__init__(
161
+ bos_token=bos_token,
162
+ eos_token=eos_token,
163
+ sep_token=sep_token,
164
+ unk_token=unk_token,
165
+ pad_token=pad_token,
166
+ cls_token=cls_token,
167
+ mask_token=mask_token,
168
+ sp_model_kwargs=self.sp_model_kwargs,
169
+ **kwargs,
170
+ )
171
+
172
+ @property
173
+ def can_save_slow_tokenizer(self) -> bool:
174
+ return os.path.isfile(self.vocab_file) if self.vocab_file else False
175
+
176
+ def __getstate__(self):
177
+ state = self.__dict__.copy()
178
+ state["sp_model"] = None
179
+ return state
180
+
181
+ def __setstate__(self, d):
182
+ self.__dict__ = d
183
+ try:
184
+ import sentencepiece as spm
185
+ except ImportError:
186
+ logger.warning(
187
+ "You need to install SentencePiece to use XLMRobertaTokenizer: https://github.com/google/sentencepiece"
188
+ " pip install sentencepiece"
189
+ )
190
+ raise
191
+
192
+ # for backward compatibility
193
+ if not hasattr(self, "sp_model_kwargs"):
194
+ self.sp_model_kwargs = {}
195
+
196
+ self.sp_model = spm.SentencePieceProcessor(**self.sp_model_kwargs)
197
+ self.sp_model.Load(self.vocab_file)
198
+
199
+ def get_special_tokens_mask(
200
+ self, token_ids_0: List[int], token_ids_1: Optional[List[int]] = None, already_has_special_tokens: bool = False
201
+ ) -> List[int]:
202
+ """
203
+ Retrieve sequence ids from a token list that has no special tokens added. This method is called when adding
204
+ special tokens using the tokenizer `prepare_for_model` method.
205
+
206
+ Args:
207
+ token_ids_0 (`List[int]`):
208
+ List of IDs.
209
+ token_ids_1 (`List[int]`, *optional*):
210
+ Optional second list of IDs for sequence pairs.
211
+ already_has_special_tokens (`bool`, *optional*, defaults to `False`):
212
+ Whether or not the token list is already formatted with special tokens for the model.
213
+
214
+ Returns:
215
+ `List[int]`: A list of integers in the range [0, 1]: 1 for a special token, 0 for a sequence token.
216
+ """
217
+
218
+ if already_has_special_tokens:
219
+ return super().get_special_tokens_mask(
220
+ token_ids_0=token_ids_0, token_ids_1=token_ids_1, already_has_special_tokens=True
221
+ )
222
+
223
+ if token_ids_1 is None:
224
+ return ([0] * len(token_ids_0)) + [1]
225
+ return ([0] * len(token_ids_0)) + [1] + ([0] * len(token_ids_1)) + [1]
226
+
227
+ def create_token_type_ids_from_sequences(
228
+ self, token_ids_0: List[int], token_ids_1: Optional[List[int]] = None
229
+ ) -> List[int]:
230
+ """
231
+ Create a mask from the two sequences passed to be used in a sequence-pair classification task. XLMProphetNet
232
+ does not make use of token type ids, therefore a list of zeros is returned.
233
+
234
+ Args:
235
+ token_ids_0 (`List[int]`):
236
+ List of IDs.
237
+ token_ids_1 (`List[int]`, *optional*):
238
+ Optional second list of IDs for sequence pairs.
239
+
240
+ Returns:
241
+ `List[int]`: List of zeros.
242
+
243
+ """
244
+
245
+ sep = [self.sep_token_id]
246
+
247
+ if token_ids_1 is None:
248
+ return len(token_ids_0 + sep) * [0]
249
+ return len(token_ids_0 + sep + sep + token_ids_1 + sep) * [0]
250
+
251
+ @property
252
+ def vocab_size(self):
253
+ return len(self.sp_model) + self.fairseq_offset
254
+
255
+ def get_vocab(self):
256
+ vocab = {self.convert_ids_to_tokens(i): i for i in range(self.vocab_size)}
257
+ vocab.update(self.added_tokens_encoder)
258
+ return vocab
259
+
260
+ def _tokenize(self, text: str) -> str:
261
+ return self.sp_model.encode(text, out_type=str)
262
+
263
+ def _convert_token_to_id(self, token):
264
+ """Converts a token (str) in an id using the vocab."""
265
+ if token in self.fairseq_tokens_to_ids:
266
+ return self.fairseq_tokens_to_ids[token]
267
+ spm_id = self.sp_model.PieceToId(token)
268
+
269
+ # Need to return unknown token if the SP model returned 0
270
+ return spm_id + self.fairseq_offset if spm_id else self.unk_token_id
271
+
272
+ def _convert_id_to_token(self, index):
273
+ """Converts an index (integer) in a token (str) using the vocab."""
274
+ if index in self.fairseq_ids_to_tokens:
275
+ return self.fairseq_ids_to_tokens[index]
276
+ return self.sp_model.IdToPiece(index - self.fairseq_offset)
277
+
278
+ def convert_tokens_to_string(self, tokens):
279
+ """Converts a sequence of tokens (strings for sub-words) in a single string."""
280
+ out_string = "".join(tokens).replace(SPIECE_UNDERLINE, " ").strip()
281
+ return out_string
282
+
283
+ def save_vocabulary(self, save_directory: str, filename_prefix: Optional[str] = None) -> Tuple[str]:
284
+ if not os.path.isdir(save_directory):
285
+ logger.error(f"Vocabulary path ({save_directory}) should be a directory")
286
+ return
287
+ out_vocab_file = os.path.join(
288
+ save_directory, (filename_prefix + "-" if filename_prefix else "") + VOCAB_FILES_NAMES["vocab_file"]
289
+ )
290
+
291
+ if os.path.abspath(self.vocab_file) != os.path.abspath(out_vocab_file) and os.path.isfile(self.vocab_file):
292
+ copyfile(self.vocab_file, out_vocab_file)
293
+ elif not os.path.isfile(self.vocab_file):
294
+ with open(out_vocab_file, "wb") as fi:
295
+ content_spiece_model = self.sp_model.serialized_model_proto()
296
+ fi.write(content_spiece_model)
297
+
298
+ return (out_vocab_file,)
299
+
300
+ def build_inputs_with_special_tokens(
301
+ self, token_ids_0: List[int], token_ids_1: Optional[List[int]] = None
302
+ ) -> List[int]:
303
+ """
304
+ Build model inputs from a sequence or a pair of sequence for sequence classification tasks by concatenating and
305
+ adding special tokens. A XLMProphetNet sequence has the following format:
306
+
307
+ - single sequence: `X [SEP]`
308
+ - pair of sequences: `A [SEP] B [SEP]`
309
+
310
+ Args:
311
+ token_ids_0 (`List[int]`):
312
+ List of IDs to which the special tokens will be added
313
+ token_ids_1 (`List[int]`, *optional*):
314
+ Optional second list of IDs for sequence pairs.
315
+
316
+ Returns:
317
+ `List[int]`: list of [input IDs](../glossary#input-ids) with the appropriate special tokens.
318
+ """
319
+
320
+ if token_ids_1 is None:
321
+ return token_ids_0 + [self.sep_token_id]
322
+ sep = [self.sep_token_id]
323
+ return token_ids_0 + sep + token_ids_1 + sep
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/depth_anything/__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 .configuration_depth_anything import *
22
+ from .modeling_depth_anything 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-e0f68dd4420c/environment/source/src/transformers/models/depth_anything/configuration_depth_anything.py ADDED
@@ -0,0 +1,168 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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
+ """DepthAnything model configuration"""
16
+
17
+ import copy
18
+
19
+ from ...configuration_utils import PretrainedConfig
20
+ from ...utils import logging
21
+ from ...utils.backbone_utils import verify_backbone_config_arguments
22
+ from ..auto.configuration_auto import CONFIG_MAPPING
23
+
24
+
25
+ logger = logging.get_logger(__name__)
26
+
27
+
28
+ class DepthAnythingConfig(PretrainedConfig):
29
+ r"""
30
+ This is the configuration class to store the configuration of a [`DepthAnythingModel`]. It is used to instantiate a DepthAnything
31
+ model according to the specified arguments, defining the model architecture. Instantiating a configuration with the
32
+ defaults will yield a similar configuration to that of the DepthAnything
33
+ [LiheYoung/depth-anything-small-hf](https://huggingface.co/LiheYoung/depth-anything-small-hf) 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
+ backbone_config (`Union[Dict[str, Any], PretrainedConfig]`, *optional*):
40
+ The configuration of the backbone model. Only used in case `is_hybrid` is `True` or in case you want to
41
+ leverage the [`AutoBackbone`] API.
42
+ backbone (`str`, *optional*):
43
+ Name of backbone to use when `backbone_config` is `None`. If `use_pretrained_backbone` is `True`, this
44
+ will load the corresponding pretrained weights from the timm or transformers library. If `use_pretrained_backbone`
45
+ is `False`, this loads the backbone's config and uses that to initialize the backbone with random weights.
46
+ use_pretrained_backbone (`bool`, *optional*, defaults to `False`):
47
+ Whether to use pretrained weights for the backbone.
48
+ use_timm_backbone (`bool`, *optional*, defaults to `False`):
49
+ Whether or not to use the `timm` library for the backbone. If set to `False`, will use the [`AutoBackbone`]
50
+ API.
51
+ backbone_kwargs (`dict`, *optional*):
52
+ Keyword arguments to be passed to AutoBackbone when loading from a checkpoint
53
+ e.g. `{'out_indices': (0, 1, 2, 3)}`. Cannot be specified if `backbone_config` is set.
54
+ patch_size (`int`, *optional*, defaults to 14):
55
+ The size of the patches to extract from the backbone features.
56
+ initializer_range (`float`, *optional*, defaults to 0.02):
57
+ The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
58
+ reassemble_hidden_size (`int`, *optional*, defaults to 384):
59
+ The number of input channels of the reassemble layers.
60
+ reassemble_factors (`List[int]`, *optional*, defaults to `[4, 2, 1, 0.5]`):
61
+ The up/downsampling factors of the reassemble layers.
62
+ neck_hidden_sizes (`List[str]`, *optional*, defaults to `[48, 96, 192, 384]`):
63
+ The hidden sizes to project to for the feature maps of the backbone.
64
+ fusion_hidden_size (`int`, *optional*, defaults to 64):
65
+ The number of channels before fusion.
66
+ head_in_index (`int`, *optional*, defaults to -1):
67
+ The index of the features to use in the depth estimation head.
68
+ head_hidden_size (`int`, *optional*, defaults to 32):
69
+ The number of output channels in the second convolution of the depth estimation head.
70
+ depth_estimation_type (`str`, *optional*, defaults to `"relative"`):
71
+ The type of depth estimation to use. Can be one of `["relative", "metric"]`.
72
+ max_depth (`float`, *optional*):
73
+ The maximum depth to use for the "metric" depth estimation head. 20 should be used for indoor models
74
+ and 80 for outdoor models. For "relative" depth estimation, this value is ignored.
75
+
76
+ Example:
77
+
78
+ ```python
79
+ >>> from transformers import DepthAnythingConfig, DepthAnythingForDepthEstimation
80
+
81
+ >>> # Initializing a DepthAnything small style configuration
82
+ >>> configuration = DepthAnythingConfig()
83
+
84
+ >>> # Initializing a model from the DepthAnything small style configuration
85
+ >>> model = DepthAnythingForDepthEstimation(configuration)
86
+
87
+ >>> # Accessing the model configuration
88
+ >>> configuration = model.config
89
+ ```"""
90
+
91
+ model_type = "depth_anything"
92
+
93
+ def __init__(
94
+ self,
95
+ backbone_config=None,
96
+ backbone=None,
97
+ use_pretrained_backbone=False,
98
+ use_timm_backbone=False,
99
+ backbone_kwargs=None,
100
+ patch_size=14,
101
+ initializer_range=0.02,
102
+ reassemble_hidden_size=384,
103
+ reassemble_factors=[4, 2, 1, 0.5],
104
+ neck_hidden_sizes=[48, 96, 192, 384],
105
+ fusion_hidden_size=64,
106
+ head_in_index=-1,
107
+ head_hidden_size=32,
108
+ depth_estimation_type="relative",
109
+ max_depth=None,
110
+ **kwargs,
111
+ ):
112
+ super().__init__(**kwargs)
113
+ if backbone_config is None and backbone is None:
114
+ logger.info("`backbone_config` is `None`. Initializing the config with the default `Dinov2` backbone.")
115
+ backbone_config = CONFIG_MAPPING["dinov2"](
116
+ image_size=518,
117
+ hidden_size=384,
118
+ num_attention_heads=6,
119
+ out_indices=[9, 10, 11, 12],
120
+ apply_layernorm=True,
121
+ reshape_hidden_states=False,
122
+ )
123
+ elif isinstance(backbone_config, dict):
124
+ backbone_model_type = backbone_config.get("model_type")
125
+ config_class = CONFIG_MAPPING[backbone_model_type]
126
+ backbone_config = config_class.from_dict(backbone_config)
127
+
128
+ verify_backbone_config_arguments(
129
+ use_timm_backbone=use_timm_backbone,
130
+ use_pretrained_backbone=use_pretrained_backbone,
131
+ backbone=backbone,
132
+ backbone_config=backbone_config,
133
+ backbone_kwargs=backbone_kwargs,
134
+ )
135
+
136
+ self.backbone_config = backbone_config
137
+ self.backbone = backbone
138
+ self.use_pretrained_backbone = use_pretrained_backbone
139
+ self.use_timm_backbone = use_timm_backbone
140
+ self.backbone_kwargs = backbone_kwargs
141
+ self.reassemble_hidden_size = reassemble_hidden_size
142
+ self.patch_size = patch_size
143
+ self.initializer_range = initializer_range
144
+ self.reassemble_factors = reassemble_factors
145
+ self.neck_hidden_sizes = neck_hidden_sizes
146
+ self.fusion_hidden_size = fusion_hidden_size
147
+ self.head_in_index = head_in_index
148
+ self.head_hidden_size = head_hidden_size
149
+ if depth_estimation_type not in ["relative", "metric"]:
150
+ raise ValueError("depth_estimation_type must be one of ['relative', 'metric']")
151
+ self.depth_estimation_type = depth_estimation_type
152
+ self.max_depth = max_depth if max_depth else 1
153
+
154
+ def to_dict(self):
155
+ """
156
+ Serializes this instance to a Python dictionary. Override the default [`~PretrainedConfig.to_dict`]. Returns:
157
+ `Dict[str, any]`: Dictionary of all the attributes that make up this configuration instance,
158
+ """
159
+ output = copy.deepcopy(self.__dict__)
160
+
161
+ if output["backbone_config"] is not None:
162
+ output["backbone_config"] = self.backbone_config.to_dict()
163
+
164
+ output["model_type"] = self.__class__.model_type
165
+ return output
166
+
167
+
168
+ __all__ = ["DepthAnythingConfig"]
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/depth_anything/convert_depth_anything_to_hf.py ADDED
@@ -0,0 +1,368 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 Depth Anything checkpoints from the original repository. URL:
16
+ https://github.com/LiheYoung/Depth-Anything"""
17
+
18
+ import argparse
19
+ from pathlib import Path
20
+
21
+ import requests
22
+ import torch
23
+ from huggingface_hub import hf_hub_download
24
+ from PIL import Image
25
+
26
+ from transformers import DepthAnythingConfig, DepthAnythingForDepthEstimation, Dinov2Config, DPTImageProcessor
27
+ from transformers.utils import logging
28
+
29
+
30
+ logging.set_verbosity_info()
31
+ logger = logging.get_logger(__name__)
32
+
33
+
34
+ def get_dpt_config(model_name):
35
+ if "small" in model_name:
36
+ out_indices = [3, 6, 9, 12] if "v2" in model_name else [9, 10, 11, 12]
37
+ backbone_config = Dinov2Config.from_pretrained(
38
+ "facebook/dinov2-small", out_indices=out_indices, apply_layernorm=True, reshape_hidden_states=False
39
+ )
40
+ fusion_hidden_size = 64
41
+ neck_hidden_sizes = [48, 96, 192, 384]
42
+ elif "base" in model_name:
43
+ out_indices = [3, 6, 9, 12] if "v2" in model_name else [9, 10, 11, 12]
44
+ backbone_config = Dinov2Config.from_pretrained(
45
+ "facebook/dinov2-base", out_indices=out_indices, apply_layernorm=True, reshape_hidden_states=False
46
+ )
47
+ fusion_hidden_size = 128
48
+ neck_hidden_sizes = [96, 192, 384, 768]
49
+ elif "large" in model_name:
50
+ out_indices = [5, 12, 18, 24] if "v2" in model_name else [21, 22, 23, 24]
51
+ backbone_config = Dinov2Config.from_pretrained(
52
+ "facebook/dinov2-large", out_indices=out_indices, apply_layernorm=True, reshape_hidden_states=False
53
+ )
54
+ fusion_hidden_size = 256
55
+ neck_hidden_sizes = [256, 512, 1024, 1024]
56
+ else:
57
+ raise NotImplementedError(f"Model not supported: {model_name}")
58
+
59
+ if "metric" in model_name:
60
+ depth_estimation_type = "metric"
61
+ max_depth = 20 if "indoor" in model_name else 80
62
+ else:
63
+ depth_estimation_type = "relative"
64
+ max_depth = None
65
+
66
+ config = DepthAnythingConfig(
67
+ reassemble_hidden_size=backbone_config.hidden_size,
68
+ patch_size=backbone_config.patch_size,
69
+ backbone_config=backbone_config,
70
+ fusion_hidden_size=fusion_hidden_size,
71
+ neck_hidden_sizes=neck_hidden_sizes,
72
+ depth_estimation_type=depth_estimation_type,
73
+ max_depth=max_depth,
74
+ )
75
+
76
+ return config
77
+
78
+
79
+ def create_rename_keys(config):
80
+ rename_keys = []
81
+
82
+ # fmt: off
83
+ # stem
84
+ rename_keys.append(("pretrained.cls_token", "backbone.embeddings.cls_token"))
85
+ rename_keys.append(("pretrained.mask_token", "backbone.embeddings.mask_token"))
86
+ rename_keys.append(("pretrained.pos_embed", "backbone.embeddings.position_embeddings"))
87
+ rename_keys.append(("pretrained.patch_embed.proj.weight", "backbone.embeddings.patch_embeddings.projection.weight"))
88
+ rename_keys.append(("pretrained.patch_embed.proj.bias", "backbone.embeddings.patch_embeddings.projection.bias"))
89
+
90
+ # Transfomer encoder
91
+ for i in range(config.backbone_config.num_hidden_layers):
92
+ rename_keys.append((f"pretrained.blocks.{i}.ls1.gamma", f"backbone.encoder.layer.{i}.layer_scale1.lambda1"))
93
+ rename_keys.append((f"pretrained.blocks.{i}.ls2.gamma", f"backbone.encoder.layer.{i}.layer_scale2.lambda1"))
94
+ rename_keys.append((f"pretrained.blocks.{i}.norm1.weight", f"backbone.encoder.layer.{i}.norm1.weight"))
95
+ rename_keys.append((f"pretrained.blocks.{i}.norm1.bias", f"backbone.encoder.layer.{i}.norm1.bias"))
96
+ rename_keys.append((f"pretrained.blocks.{i}.norm2.weight", f"backbone.encoder.layer.{i}.norm2.weight"))
97
+ rename_keys.append((f"pretrained.blocks.{i}.norm2.bias", f"backbone.encoder.layer.{i}.norm2.bias"))
98
+ rename_keys.append((f"pretrained.blocks.{i}.mlp.fc1.weight", f"backbone.encoder.layer.{i}.mlp.fc1.weight"))
99
+ rename_keys.append((f"pretrained.blocks.{i}.mlp.fc1.bias", f"backbone.encoder.layer.{i}.mlp.fc1.bias"))
100
+ rename_keys.append((f"pretrained.blocks.{i}.mlp.fc2.weight", f"backbone.encoder.layer.{i}.mlp.fc2.weight"))
101
+ rename_keys.append((f"pretrained.blocks.{i}.mlp.fc2.bias", f"backbone.encoder.layer.{i}.mlp.fc2.bias"))
102
+ rename_keys.append((f"pretrained.blocks.{i}.attn.proj.weight", f"backbone.encoder.layer.{i}.attention.output.dense.weight"))
103
+ rename_keys.append((f"pretrained.blocks.{i}.attn.proj.bias", f"backbone.encoder.layer.{i}.attention.output.dense.bias"))
104
+
105
+ # Head
106
+ rename_keys.append(("pretrained.norm.weight", "backbone.layernorm.weight"))
107
+ rename_keys.append(("pretrained.norm.bias", "backbone.layernorm.bias"))
108
+
109
+ # activation postprocessing (readout projections + resize blocks)
110
+ # Depth Anything does not use CLS token => readout_projects not required
111
+
112
+ for i in range(4):
113
+ rename_keys.append((f"depth_head.projects.{i}.weight", f"neck.reassemble_stage.layers.{i}.projection.weight"))
114
+ rename_keys.append((f"depth_head.projects.{i}.bias", f"neck.reassemble_stage.layers.{i}.projection.bias"))
115
+
116
+ if i != 2:
117
+ rename_keys.append((f"depth_head.resize_layers.{i}.weight", f"neck.reassemble_stage.layers.{i}.resize.weight"))
118
+ rename_keys.append((f"depth_head.resize_layers.{i}.bias", f"neck.reassemble_stage.layers.{i}.resize.bias"))
119
+
120
+ # refinenet (tricky here)
121
+ mapping = {1:3, 2:2, 3:1, 4:0}
122
+
123
+ for i in range(1, 5):
124
+ j = mapping[i]
125
+ rename_keys.append((f"depth_head.scratch.refinenet{i}.out_conv.weight", f"neck.fusion_stage.layers.{j}.projection.weight"))
126
+ rename_keys.append((f"depth_head.scratch.refinenet{i}.out_conv.bias", f"neck.fusion_stage.layers.{j}.projection.bias"))
127
+ rename_keys.append((f"depth_head.scratch.refinenet{i}.resConfUnit1.conv1.weight", f"neck.fusion_stage.layers.{j}.residual_layer1.convolution1.weight"))
128
+ rename_keys.append((f"depth_head.scratch.refinenet{i}.resConfUnit1.conv1.bias", f"neck.fusion_stage.layers.{j}.residual_layer1.convolution1.bias"))
129
+ rename_keys.append((f"depth_head.scratch.refinenet{i}.resConfUnit1.conv2.weight", f"neck.fusion_stage.layers.{j}.residual_layer1.convolution2.weight"))
130
+ rename_keys.append((f"depth_head.scratch.refinenet{i}.resConfUnit1.conv2.bias", f"neck.fusion_stage.layers.{j}.residual_layer1.convolution2.bias"))
131
+ rename_keys.append((f"depth_head.scratch.refinenet{i}.resConfUnit2.conv1.weight", f"neck.fusion_stage.layers.{j}.residual_layer2.convolution1.weight"))
132
+ rename_keys.append((f"depth_head.scratch.refinenet{i}.resConfUnit2.conv1.bias", f"neck.fusion_stage.layers.{j}.residual_layer2.convolution1.bias"))
133
+ rename_keys.append((f"depth_head.scratch.refinenet{i}.resConfUnit2.conv2.weight", f"neck.fusion_stage.layers.{j}.residual_layer2.convolution2.weight"))
134
+ rename_keys.append((f"depth_head.scratch.refinenet{i}.resConfUnit2.conv2.bias", f"neck.fusion_stage.layers.{j}.residual_layer2.convolution2.bias"))
135
+
136
+ # scratch convolutions
137
+ for i in range(4):
138
+ rename_keys.append((f"depth_head.scratch.layer{i+1}_rn.weight", f"neck.convs.{i}.weight"))
139
+
140
+ # head
141
+ rename_keys.append(("depth_head.scratch.output_conv1.weight", "head.conv1.weight"))
142
+ rename_keys.append(("depth_head.scratch.output_conv1.bias", "head.conv1.bias"))
143
+ rename_keys.append(("depth_head.scratch.output_conv2.0.weight", "head.conv2.weight"))
144
+ rename_keys.append(("depth_head.scratch.output_conv2.0.bias", "head.conv2.bias"))
145
+ rename_keys.append(("depth_head.scratch.output_conv2.2.weight", "head.conv3.weight"))
146
+ rename_keys.append(("depth_head.scratch.output_conv2.2.bias", "head.conv3.bias"))
147
+
148
+ return rename_keys
149
+
150
+
151
+ # we split up the matrix of each encoder layer into queries, keys and values
152
+ def read_in_q_k_v(state_dict, config):
153
+ hidden_size = config.backbone_config.hidden_size
154
+ for i in range(config.backbone_config.num_hidden_layers):
155
+ # read in weights + bias of input projection layer (in original implementation, this is a single matrix + bias)
156
+ in_proj_weight = state_dict.pop(f"pretrained.blocks.{i}.attn.qkv.weight")
157
+ in_proj_bias = state_dict.pop(f"pretrained.blocks.{i}.attn.qkv.bias")
158
+ # next, add query, keys and values (in that order) to the state dict
159
+ state_dict[f"backbone.encoder.layer.{i}.attention.attention.query.weight"] = in_proj_weight[:hidden_size, :]
160
+ state_dict[f"backbone.encoder.layer.{i}.attention.attention.query.bias"] = in_proj_bias[:hidden_size]
161
+ state_dict[f"backbone.encoder.layer.{i}.attention.attention.key.weight"] = in_proj_weight[
162
+ hidden_size : hidden_size * 2, :
163
+ ]
164
+ state_dict[f"backbone.encoder.layer.{i}.attention.attention.key.bias"] = in_proj_bias[
165
+ hidden_size : hidden_size * 2
166
+ ]
167
+ state_dict[f"backbone.encoder.layer.{i}.attention.attention.value.weight"] = in_proj_weight[-hidden_size:, :]
168
+ state_dict[f"backbone.encoder.layer.{i}.attention.attention.value.bias"] = in_proj_bias[-hidden_size:]
169
+
170
+
171
+ def rename_key(dct, old, new):
172
+ val = dct.pop(old)
173
+ dct[new] = val
174
+
175
+
176
+ # We will verify our results on an image of cute cats
177
+ def prepare_img():
178
+ url = "http://images.cocodataset.org/val2017/000000039769.jpg"
179
+ im = Image.open(requests.get(url, stream=True).raw)
180
+ return im
181
+
182
+
183
+ name_to_checkpoint = {
184
+ "depth-anything-small": "pytorch_model.bin",
185
+ "depth-anything-base": "pytorch_model.bin",
186
+ "depth-anything-large": "pytorch_model.bin",
187
+ "depth-anything-v2-small": "depth_anything_v2_vits.pth",
188
+ "depth-anything-v2-base": "depth_anything_v2_vitb.pth",
189
+ "depth-anything-v2-large": "depth_anything_v2_vitl.pth",
190
+ "depth-anything-v2-metric-indoor-small": "depth_anything_v2_metric_hypersim_vits.pth",
191
+ "depth-anything-v2-metric-indoor-base": "depth_anything_v2_metric_hypersim_vitb.pth",
192
+ "depth-anything-v2-metric-indoor-large": "depth_anything_v2_metric_hypersim_vitl.pth",
193
+ "depth-anything-v2-metric-outdoor-small": "depth_anything_v2_metric_vkitti_vits.pth",
194
+ "depth-anything-v2-metric-outdoor-base": "depth_anything_v2_metric_vkitti_vitb.pth",
195
+ "depth-anything-v2-metric-outdoor-large": "depth_anything_v2_metric_vkitti_vitl.pth",
196
+ # v2-giant pending
197
+ }
198
+
199
+
200
+ @torch.no_grad()
201
+ def convert_dpt_checkpoint(model_name, pytorch_dump_folder_path, push_to_hub, verify_logits):
202
+ """
203
+ Copy/paste/tweak model's weights to our DPT structure.
204
+ """
205
+
206
+ # define DPT configuration
207
+ config = get_dpt_config(model_name)
208
+
209
+ model_name_to_repo = {
210
+ "depth-anything-small": "LiheYoung/depth_anything_vits14",
211
+ "depth-anything-base": "LiheYoung/depth_anything_vitb14",
212
+ "depth-anything-large": "LiheYoung/depth_anything_vitl14",
213
+ "depth-anything-v2-small": "depth-anything/Depth-Anything-V2-Small",
214
+ "depth-anything-v2-base": "depth-anything/Depth-Anything-V2-Base",
215
+ "depth-anything-v2-large": "depth-anything/Depth-Anything-V2-Large",
216
+ "depth-anything-v2-metric-indoor-small": "depth-anything/Depth-Anything-V2-Metric-Hypersim-Small",
217
+ "depth-anything-v2-metric-indoor-base": "depth-anything/Depth-Anything-V2-Metric-Hypersim-Base",
218
+ "depth-anything-v2-metric-indoor-large": "depth-anything/Depth-Anything-V2-Metric-Hypersim-Large",
219
+ "depth-anything-v2-metric-outdoor-small": "depth-anything/Depth-Anything-V2-Metric-VKITTI-Small",
220
+ "depth-anything-v2-metric-outdoor-base": "depth-anything/Depth-Anything-V2-Metric-VKITTI-Base",
221
+ "depth-anything-v2-metric-outdoor-large": "depth-anything/Depth-Anything-V2-Metric-VKITTI-Large",
222
+ }
223
+
224
+ # load original state_dict
225
+ repo_id = model_name_to_repo[model_name]
226
+ filename = name_to_checkpoint[model_name]
227
+ filepath = hf_hub_download(
228
+ repo_id=repo_id,
229
+ filename=f"{filename}",
230
+ )
231
+
232
+ state_dict = torch.load(filepath, map_location="cpu")
233
+ # rename keys
234
+ rename_keys = create_rename_keys(config)
235
+ for src, dest in rename_keys:
236
+ rename_key(state_dict, src, dest)
237
+ # read in qkv matrices
238
+ read_in_q_k_v(state_dict, config)
239
+
240
+ # load HuggingFace model
241
+ model = DepthAnythingForDepthEstimation(config)
242
+ model.load_state_dict(state_dict)
243
+ model.eval()
244
+
245
+ processor = DPTImageProcessor(
246
+ do_resize=True,
247
+ size={"height": 518, "width": 518},
248
+ ensure_multiple_of=14,
249
+ keep_aspect_ratio=True,
250
+ do_rescale=True,
251
+ do_normalize=True,
252
+ image_mean=[0.485, 0.456, 0.406],
253
+ image_std=[0.229, 0.224, 0.225],
254
+ )
255
+
256
+ url = "http://images.cocodataset.org/val2017/000000039769.jpg"
257
+ image = Image.open(requests.get(url, stream=True).raw)
258
+
259
+ pixel_values = processor(image, return_tensors="pt").pixel_values
260
+
261
+ # Verify forward pass
262
+ with torch.no_grad():
263
+ outputs = model(pixel_values)
264
+ predicted_depth = outputs.predicted_depth
265
+
266
+ print("Shape of predicted depth:", predicted_depth.shape)
267
+ print("First values:", predicted_depth[0, :3, :3])
268
+
269
+ # assert logits
270
+ if verify_logits:
271
+ expected_shape = torch.Size([1, 518, 686])
272
+ if model_name == "depth-anything-small":
273
+ expected_slice = torch.tensor(
274
+ [[8.8204, 8.6468, 8.6195], [8.3313, 8.6027, 8.7526], [8.6526, 8.6866, 8.7453]],
275
+ )
276
+ elif model_name == "depth-anything-base":
277
+ expected_slice = torch.tensor(
278
+ [[26.3997, 26.3004, 26.3928], [26.2260, 26.2092, 26.3427], [26.0719, 26.0483, 26.1254]],
279
+ )
280
+ elif model_name == "depth-anything-large":
281
+ expected_slice = torch.tensor(
282
+ [[87.9968, 87.7493, 88.2704], [87.1927, 87.6611, 87.3640], [86.7789, 86.9469, 86.7991]]
283
+ )
284
+ elif model_name == "depth-anything-v2-small":
285
+ expected_slice = torch.tensor(
286
+ [[2.6751, 2.6211, 2.6571], [2.5820, 2.6138, 2.6271], [2.6160, 2.6141, 2.6306]]
287
+ )
288
+ elif model_name == "depth-anything-v2-base":
289
+ expected_slice = torch.tensor(
290
+ [[4.3576, 4.3723, 4.3908], [4.3231, 4.3146, 4.3611], [4.3016, 4.3170, 4.3121]]
291
+ )
292
+ elif model_name == "depth-anything-v2-large":
293
+ expected_slice = torch.tensor(
294
+ [[162.2751, 161.8504, 162.8788], [160.3138, 160.8050, 161.9835], [159.3812, 159.9884, 160.0768]]
295
+ )
296
+ elif model_name == "depth-anything-v2-metric-indoor-small":
297
+ expected_slice = torch.tensor(
298
+ [[1.3349, 1.2946, 1.2801], [1.2793, 1.2337, 1.2899], [1.2629, 1.2218, 1.2476]]
299
+ )
300
+ elif model_name == "depth-anything-v2-metric-indoor-base":
301
+ expected_slice = torch.tensor(
302
+ [[1.4601, 1.3824, 1.4904], [1.5031, 1.4349, 1.4274], [1.4570, 1.4578, 1.4200]]
303
+ )
304
+ elif model_name == "depth-anything-v2-metric-indoor-large":
305
+ expected_slice = torch.tensor(
306
+ [[1.5040, 1.5019, 1.5218], [1.5087, 1.5195, 1.5149], [1.5437, 1.5128, 1.5252]]
307
+ )
308
+ elif model_name == "depth-anything-v2-metric-outdoor-small":
309
+ expected_slice = torch.tensor(
310
+ [[9.5804, 8.0339, 7.7386], [7.9890, 7.2464, 7.7149], [7.7021, 7.2330, 7.3304]]
311
+ )
312
+ elif model_name == "depth-anything-v2-metric-outdoor-base":
313
+ expected_slice = torch.tensor(
314
+ [[10.2916, 9.0933, 8.8622], [9.1964, 9.3393, 9.0644], [8.9618, 9.4201, 9.2262]]
315
+ )
316
+ elif model_name == "depth-anything-v2-metric-outdoor-large":
317
+ expected_slice = torch.tensor(
318
+ [[14.0137, 13.3627, 13.1080], [13.2522, 13.3943, 13.3705], [13.0581, 13.4505, 13.3925]]
319
+ )
320
+ else:
321
+ raise ValueError("Not supported")
322
+
323
+ assert predicted_depth.shape == torch.Size(expected_shape)
324
+ assert torch.allclose(predicted_depth[0, :3, :3], expected_slice, atol=1e-4)
325
+ print("Looks ok!")
326
+
327
+ if pytorch_dump_folder_path is not None:
328
+ Path(pytorch_dump_folder_path).mkdir(exist_ok=True)
329
+ print(f"Saving model and processor to {pytorch_dump_folder_path}")
330
+ model.save_pretrained(pytorch_dump_folder_path)
331
+ processor.save_pretrained(pytorch_dump_folder_path)
332
+
333
+ if push_to_hub:
334
+ print("Pushing model and processor to hub...")
335
+ model.push_to_hub(repo_id=f"{model_name.title()}-hf")
336
+ processor.push_to_hub(repo_id=f"{model_name.title()}-hf")
337
+
338
+
339
+ if __name__ == "__main__":
340
+ parser = argparse.ArgumentParser()
341
+ # Required parameters
342
+ parser.add_argument(
343
+ "--model_name",
344
+ default="depth-anything-small",
345
+ type=str,
346
+ choices=name_to_checkpoint.keys(),
347
+ help="Name of the model you'd like to convert.",
348
+ )
349
+ parser.add_argument(
350
+ "--pytorch_dump_folder_path",
351
+ default=None,
352
+ type=str,
353
+ help="Path to the output PyTorch model directory.",
354
+ )
355
+ parser.add_argument(
356
+ "--push_to_hub",
357
+ action="store_true",
358
+ help="Whether to push the model to the hub after conversion.",
359
+ )
360
+ parser.add_argument(
361
+ "--verify_logits",
362
+ action="store_false",
363
+ required=False,
364
+ help="Whether to verify the logits after conversion.",
365
+ )
366
+
367
+ args = parser.parse_args()
368
+ convert_dpt_checkpoint(args.model_name, args.pytorch_dump_folder_path, args.push_to_hub, args.verify_logits)
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/depth_anything/modeling_depth_anything.py ADDED
@@ -0,0 +1,468 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2024 TikTok 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 Depth Anything model."""
16
+
17
+ from typing import List, Optional, Tuple, Union
18
+
19
+ import torch
20
+ import torch.utils.checkpoint
21
+ from torch import nn
22
+
23
+ from ...file_utils import (
24
+ add_start_docstrings,
25
+ add_start_docstrings_to_model_forward,
26
+ replace_return_docstrings,
27
+ )
28
+ from ...modeling_outputs import DepthEstimatorOutput
29
+ from ...modeling_utils import PreTrainedModel
30
+ from ...utils import logging
31
+ from ...utils.backbone_utils import load_backbone
32
+ from .configuration_depth_anything import DepthAnythingConfig
33
+
34
+
35
+ logger = logging.get_logger(__name__)
36
+
37
+ # General docstring
38
+ _CONFIG_FOR_DOC = "DepthAnythingConfig"
39
+
40
+
41
+ DEPTH_ANYTHING_START_DOCSTRING = r"""
42
+ This model is a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass. Use it
43
+ as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage and
44
+ behavior.
45
+
46
+ Parameters:
47
+ config ([`DepthAnythingConfig`]): Model configuration class with all the parameters of the model.
48
+ Initializing with a config file does not load the weights associated with the model, only the
49
+ configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights.
50
+ """
51
+
52
+ DEPTH_ANYTHING_INPUTS_DOCSTRING = r"""
53
+ Args:
54
+ pixel_values (`torch.FloatTensor` of shape `(batch_size, num_channels, height, width)`):
55
+ Pixel values. Pixel values can be obtained using [`AutoImageProcessor`]. See [`DPTImageProcessor.__call__`]
56
+ for details.
57
+ output_attentions (`bool`, *optional*):
58
+ Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned
59
+ tensors for more detail.
60
+ output_hidden_states (`bool`, *optional*):
61
+ Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
62
+ more detail.
63
+ return_dict (`bool`, *optional*):
64
+ Whether or not to return a [`~file_utils.ModelOutput`] instead of a plain tuple.
65
+ """
66
+
67
+
68
+ class DepthAnythingReassembleLayer(nn.Module):
69
+ def __init__(self, config, channels, factor):
70
+ super().__init__()
71
+ self.projection = nn.Conv2d(in_channels=config.reassemble_hidden_size, out_channels=channels, kernel_size=1)
72
+
73
+ # up/down sampling depending on factor
74
+ if factor > 1:
75
+ self.resize = nn.ConvTranspose2d(channels, channels, kernel_size=factor, stride=factor, padding=0)
76
+ elif factor == 1:
77
+ self.resize = nn.Identity()
78
+ elif factor < 1:
79
+ # so should downsample
80
+ self.resize = nn.Conv2d(channels, channels, kernel_size=3, stride=int(1 / factor), padding=1)
81
+
82
+ # Copied from transformers.models.dpt.modeling_dpt.DPTReassembleLayer.forward
83
+ def forward(self, hidden_state):
84
+ hidden_state = self.projection(hidden_state)
85
+ hidden_state = self.resize(hidden_state)
86
+
87
+ return hidden_state
88
+
89
+
90
+ class DepthAnythingReassembleStage(nn.Module):
91
+ """
92
+ This class reassembles the hidden states of the backbone into image-like feature representations at various
93
+ resolutions.
94
+
95
+ This happens in 3 stages:
96
+ 1. Take the patch embeddings and reshape them to image-like feature representations.
97
+ 2. Project the channel dimension of the hidden states according to `config.neck_hidden_sizes`.
98
+ 3. Resizing the spatial dimensions (height, width).
99
+
100
+ Args:
101
+ config (`[DepthAnythingConfig]`):
102
+ Model configuration class defining the model architecture.
103
+ """
104
+
105
+ def __init__(self, config):
106
+ super().__init__()
107
+
108
+ self.config = config
109
+ self.layers = nn.ModuleList()
110
+ for channels, factor in zip(config.neck_hidden_sizes, config.reassemble_factors):
111
+ self.layers.append(DepthAnythingReassembleLayer(config, channels=channels, factor=factor))
112
+
113
+ def forward(self, hidden_states: List[torch.Tensor], patch_height=None, patch_width=None) -> List[torch.Tensor]:
114
+ """
115
+ Args:
116
+ hidden_states (`List[torch.FloatTensor]`, each of shape `(batch_size, sequence_length + 1, hidden_size)`):
117
+ List of hidden states from the backbone.
118
+ """
119
+ out = []
120
+
121
+ for i, hidden_state in enumerate(hidden_states):
122
+ # reshape to (batch_size, num_channels, height, width)
123
+ hidden_state = hidden_state[:, 1:]
124
+ batch_size, _, num_channels = hidden_state.shape
125
+ hidden_state = hidden_state.reshape(batch_size, patch_height, patch_width, num_channels)
126
+ hidden_state = hidden_state.permute(0, 3, 1, 2).contiguous()
127
+ hidden_state = self.layers[i](hidden_state)
128
+ out.append(hidden_state)
129
+
130
+ return out
131
+
132
+
133
+ class DepthAnythingPreActResidualLayer(nn.Module):
134
+ """
135
+ ResidualConvUnit, pre-activate residual unit.
136
+
137
+ Args:
138
+ config (`[DepthAnythingConfig]`):
139
+ Model configuration class defining the model architecture.
140
+ """
141
+
142
+ def __init__(self, config):
143
+ super().__init__()
144
+
145
+ self.activation1 = nn.ReLU()
146
+ self.convolution1 = nn.Conv2d(
147
+ config.fusion_hidden_size,
148
+ config.fusion_hidden_size,
149
+ kernel_size=3,
150
+ stride=1,
151
+ padding=1,
152
+ bias=True,
153
+ )
154
+
155
+ self.activation2 = nn.ReLU()
156
+ self.convolution2 = nn.Conv2d(
157
+ config.fusion_hidden_size,
158
+ config.fusion_hidden_size,
159
+ kernel_size=3,
160
+ stride=1,
161
+ padding=1,
162
+ bias=True,
163
+ )
164
+
165
+ def forward(self, hidden_state: torch.Tensor) -> torch.Tensor:
166
+ residual = hidden_state
167
+ hidden_state = self.activation1(hidden_state)
168
+ hidden_state = self.convolution1(hidden_state)
169
+ hidden_state = self.activation2(hidden_state)
170
+ hidden_state = self.convolution2(hidden_state)
171
+
172
+ return hidden_state + residual
173
+
174
+
175
+ class DepthAnythingFeatureFusionLayer(nn.Module):
176
+ """Feature fusion layer, merges feature maps from different stages.
177
+
178
+ Args:
179
+ config (`[DepthAnythingConfig]`):
180
+ Model configuration class defining the model architecture.
181
+ """
182
+
183
+ def __init__(self, config):
184
+ super().__init__()
185
+
186
+ self.projection = nn.Conv2d(config.fusion_hidden_size, config.fusion_hidden_size, kernel_size=1, bias=True)
187
+
188
+ self.residual_layer1 = DepthAnythingPreActResidualLayer(config)
189
+ self.residual_layer2 = DepthAnythingPreActResidualLayer(config)
190
+
191
+ def forward(self, hidden_state, residual=None, size=None):
192
+ if residual is not None:
193
+ if hidden_state.shape != residual.shape:
194
+ residual = nn.functional.interpolate(
195
+ residual, size=(hidden_state.shape[2], hidden_state.shape[3]), mode="bilinear", align_corners=False
196
+ )
197
+ hidden_state = hidden_state + self.residual_layer1(residual)
198
+
199
+ hidden_state = self.residual_layer2(hidden_state)
200
+
201
+ modifier = {"scale_factor": 2} if size is None else {"size": size}
202
+
203
+ hidden_state = nn.functional.interpolate(
204
+ hidden_state,
205
+ **modifier,
206
+ mode="bilinear",
207
+ align_corners=True,
208
+ )
209
+ hidden_state = self.projection(hidden_state)
210
+
211
+ return hidden_state
212
+
213
+
214
+ class DepthAnythingFeatureFusionStage(nn.Module):
215
+ # Copied from transformers.models.dpt.modeling_dpt.DPTFeatureFusionStage.__init__ with DPT->DepthAnything
216
+ def __init__(self, config):
217
+ super().__init__()
218
+ self.layers = nn.ModuleList()
219
+ for _ in range(len(config.neck_hidden_sizes)):
220
+ self.layers.append(DepthAnythingFeatureFusionLayer(config))
221
+
222
+ def forward(self, hidden_states, size=None):
223
+ # reversing the hidden_states, we start from the last
224
+ hidden_states = hidden_states[::-1]
225
+
226
+ fused_hidden_states = []
227
+ fused_hidden_state = None
228
+
229
+ for idx, (hidden_state, layer) in enumerate(zip(hidden_states, self.layers)):
230
+ size = hidden_states[idx + 1].shape[2:] if idx != (len(hidden_states) - 1) else None
231
+
232
+ if fused_hidden_state is None:
233
+ # first layer only uses the last hidden_state
234
+ fused_hidden_state = layer(hidden_state, size=size)
235
+ else:
236
+ fused_hidden_state = layer(fused_hidden_state, hidden_state, size=size)
237
+
238
+ fused_hidden_states.append(fused_hidden_state)
239
+
240
+ return fused_hidden_states
241
+
242
+
243
+ # Copied from transformers.models.dpt.modeling_dpt.DPTPreTrainedModel with DPT->DepthAnything,dpt->depth_anything
244
+ class DepthAnythingPreTrainedModel(PreTrainedModel):
245
+ """
246
+ An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained
247
+ models.
248
+ """
249
+
250
+ config_class = DepthAnythingConfig
251
+ base_model_prefix = "depth_anything"
252
+ main_input_name = "pixel_values"
253
+ supports_gradient_checkpointing = True
254
+
255
+ def _init_weights(self, module):
256
+ """Initialize the weights"""
257
+ if isinstance(module, (nn.Linear, nn.Conv2d, nn.ConvTranspose2d)):
258
+ # Slightly different from the TF version which uses truncated_normal for initialization
259
+ # cf https://github.com/pytorch/pytorch/pull/5617
260
+ module.weight.data.normal_(mean=0.0, std=self.config.initializer_range)
261
+ if module.bias is not None:
262
+ module.bias.data.zero_()
263
+ elif isinstance(module, nn.LayerNorm):
264
+ module.bias.data.zero_()
265
+ module.weight.data.fill_(1.0)
266
+
267
+
268
+ class DepthAnythingNeck(nn.Module):
269
+ """
270
+ DepthAnythingNeck. A neck is a module that is normally used between the backbone and the head. It takes a list of tensors as
271
+ input and produces another list of tensors as output. For DepthAnything, it includes 2 stages:
272
+
273
+ * DepthAnythingReassembleStage
274
+ * DepthAnythingFeatureFusionStage.
275
+
276
+ Args:
277
+ config (dict): config dict.
278
+ """
279
+
280
+ def __init__(self, config):
281
+ super().__init__()
282
+ self.config = config
283
+
284
+ self.reassemble_stage = DepthAnythingReassembleStage(config)
285
+
286
+ self.convs = nn.ModuleList()
287
+ for channel in config.neck_hidden_sizes:
288
+ self.convs.append(nn.Conv2d(channel, config.fusion_hidden_size, kernel_size=3, padding=1, bias=False))
289
+
290
+ # fusion
291
+ self.fusion_stage = DepthAnythingFeatureFusionStage(config)
292
+
293
+ def forward(self, hidden_states: List[torch.Tensor], patch_height=None, patch_width=None) -> List[torch.Tensor]:
294
+ """
295
+ Args:
296
+ hidden_states (`List[torch.FloatTensor]`, each of shape `(batch_size, sequence_length, hidden_size)` or `(batch_size, hidden_size, height, width)`):
297
+ List of hidden states from the backbone.
298
+ """
299
+ if not isinstance(hidden_states, (tuple, list)):
300
+ raise TypeError("hidden_states should be a tuple or list of tensors")
301
+
302
+ if len(hidden_states) != len(self.config.neck_hidden_sizes):
303
+ raise ValueError("The number of hidden states should be equal to the number of neck hidden sizes.")
304
+
305
+ # postprocess hidden states
306
+ hidden_states = self.reassemble_stage(hidden_states, patch_height, patch_width)
307
+
308
+ features = [self.convs[i](feature) for i, feature in enumerate(hidden_states)]
309
+
310
+ # fusion blocks
311
+ output = self.fusion_stage(features)
312
+
313
+ return output
314
+
315
+
316
+ class DepthAnythingDepthEstimationHead(nn.Module):
317
+ """
318
+ Output head consisting of 3 convolutional layers. It progressively halves the feature dimension and upsamples
319
+ the predictions to the input resolution after the first convolutional layer (details can be found in the DPT paper's
320
+ supplementary material). The final activation function is either ReLU or Sigmoid, depending on the depth estimation
321
+ type (relative or metric). For metric depth estimation, the output is scaled by the maximum depth used during pretraining.
322
+ """
323
+
324
+ def __init__(self, config):
325
+ super().__init__()
326
+
327
+ self.head_in_index = config.head_in_index
328
+ self.patch_size = config.patch_size
329
+
330
+ features = config.fusion_hidden_size
331
+ self.conv1 = nn.Conv2d(features, features // 2, kernel_size=3, stride=1, padding=1)
332
+ self.conv2 = nn.Conv2d(features // 2, config.head_hidden_size, kernel_size=3, stride=1, padding=1)
333
+ self.activation1 = nn.ReLU()
334
+ self.conv3 = nn.Conv2d(config.head_hidden_size, 1, kernel_size=1, stride=1, padding=0)
335
+ if config.depth_estimation_type == "relative":
336
+ self.activation2 = nn.ReLU()
337
+ elif config.depth_estimation_type == "metric":
338
+ self.activation2 = nn.Sigmoid()
339
+ else:
340
+ raise ValueError(f"Unknown depth estimation type: {config.depth_estimation_type}")
341
+ self.max_depth = config.max_depth
342
+
343
+ def forward(self, hidden_states: List[torch.Tensor], patch_height, patch_width) -> torch.Tensor:
344
+ hidden_states = hidden_states[self.head_in_index]
345
+
346
+ predicted_depth = self.conv1(hidden_states)
347
+ predicted_depth = nn.functional.interpolate(
348
+ predicted_depth,
349
+ (int(patch_height * self.patch_size), int(patch_width * self.patch_size)),
350
+ mode="bilinear",
351
+ align_corners=True,
352
+ )
353
+ predicted_depth = self.conv2(predicted_depth)
354
+ predicted_depth = self.activation1(predicted_depth)
355
+ predicted_depth = self.conv3(predicted_depth)
356
+ predicted_depth = self.activation2(predicted_depth) * self.max_depth
357
+ predicted_depth = predicted_depth.squeeze(dim=1) # shape (batch_size, height, width)
358
+
359
+ return predicted_depth
360
+
361
+
362
+ @add_start_docstrings(
363
+ """
364
+ Depth Anything Model with a depth estimation head on top (consisting of 3 convolutional layers) e.g. for KITTI, NYUv2.
365
+ """,
366
+ DEPTH_ANYTHING_START_DOCSTRING,
367
+ )
368
+ class DepthAnythingForDepthEstimation(DepthAnythingPreTrainedModel):
369
+ _no_split_modules = ["DPTViTEmbeddings"]
370
+
371
+ def __init__(self, config):
372
+ super().__init__(config)
373
+
374
+ self.backbone = load_backbone(config)
375
+ self.neck = DepthAnythingNeck(config)
376
+ self.head = DepthAnythingDepthEstimationHead(config)
377
+
378
+ # Initialize weights and apply final processing
379
+ self.post_init()
380
+
381
+ @add_start_docstrings_to_model_forward(DEPTH_ANYTHING_INPUTS_DOCSTRING)
382
+ @replace_return_docstrings(output_type=DepthEstimatorOutput, config_class=_CONFIG_FOR_DOC)
383
+ def forward(
384
+ self,
385
+ pixel_values: torch.FloatTensor,
386
+ labels: Optional[torch.LongTensor] = None,
387
+ output_attentions: Optional[bool] = None,
388
+ output_hidden_states: Optional[bool] = None,
389
+ return_dict: Optional[bool] = None,
390
+ ) -> Union[Tuple[torch.Tensor], DepthEstimatorOutput]:
391
+ r"""
392
+ labels (`torch.LongTensor` of shape `(batch_size, height, width)`, *optional*):
393
+ Ground truth depth estimation maps for computing the loss.
394
+
395
+ Returns:
396
+
397
+ Examples:
398
+ ```python
399
+ >>> from transformers import AutoImageProcessor, AutoModelForDepthEstimation
400
+ >>> import torch
401
+ >>> import numpy as np
402
+ >>> from PIL import Image
403
+ >>> import requests
404
+
405
+ >>> url = "http://images.cocodataset.org/val2017/000000039769.jpg"
406
+ >>> image = Image.open(requests.get(url, stream=True).raw)
407
+
408
+ >>> image_processor = AutoImageProcessor.from_pretrained("LiheYoung/depth-anything-small-hf")
409
+ >>> model = AutoModelForDepthEstimation.from_pretrained("LiheYoung/depth-anything-small-hf")
410
+
411
+ >>> # prepare image for the model
412
+ >>> inputs = image_processor(images=image, return_tensors="pt")
413
+
414
+ >>> with torch.no_grad():
415
+ ... outputs = model(**inputs)
416
+
417
+ >>> # interpolate to original size
418
+ >>> post_processed_output = image_processor.post_process_depth_estimation(
419
+ ... outputs,
420
+ ... target_sizes=[(image.height, image.width)],
421
+ ... )
422
+
423
+ >>> # visualize the prediction
424
+ >>> predicted_depth = post_processed_output[0]["predicted_depth"]
425
+ >>> depth = predicted_depth * 255 / predicted_depth.max()
426
+ >>> depth = depth.detach().cpu().numpy()
427
+ >>> depth = Image.fromarray(depth.astype("uint8"))
428
+ ```"""
429
+ loss = None
430
+ if labels is not None:
431
+ raise NotImplementedError("Training is not implemented yet")
432
+
433
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
434
+ output_hidden_states = (
435
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
436
+ )
437
+ output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
438
+
439
+ outputs = self.backbone.forward_with_filtered_kwargs(
440
+ pixel_values, output_hidden_states=output_hidden_states, output_attentions=output_attentions
441
+ )
442
+ hidden_states = outputs.feature_maps
443
+
444
+ _, _, height, width = pixel_values.shape
445
+ patch_size = self.config.patch_size
446
+ patch_height = height // patch_size
447
+ patch_width = width // patch_size
448
+
449
+ hidden_states = self.neck(hidden_states, patch_height, patch_width)
450
+
451
+ predicted_depth = self.head(hidden_states, patch_height, patch_width)
452
+
453
+ if not return_dict:
454
+ if output_hidden_states:
455
+ output = (predicted_depth,) + outputs[1:]
456
+ else:
457
+ output = (predicted_depth,) + outputs[2:]
458
+ return ((loss,) + output) if loss is not None else output
459
+
460
+ return DepthEstimatorOutput(
461
+ loss=loss,
462
+ predicted_depth=predicted_depth,
463
+ hidden_states=outputs.hidden_states if output_hidden_states else None,
464
+ attentions=outputs.attentions,
465
+ )
466
+
467
+
468
+ __all__ = ["DepthAnythingForDepthEstimation", "DepthAnythingPreTrainedModel"]
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/depth_pro/__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_depth_pro import *
22
+ from .image_processing_depth_pro import *
23
+ from .image_processing_depth_pro_fast import *
24
+ from .modeling_depth_pro 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-e0f68dd4420c/environment/source/src/transformers/models/depth_pro/configuration_depth_pro.py ADDED
@@ -0,0 +1,205 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2024 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
+ """DepthPro model configuration"""
16
+
17
+ from copy import deepcopy
18
+
19
+ from ...configuration_utils import PretrainedConfig
20
+ from ...utils import logging
21
+ from ..auto.configuration_auto import CONFIG_MAPPING, AutoConfig
22
+
23
+
24
+ logger = logging.get_logger(__name__)
25
+
26
+
27
+ class DepthProConfig(PretrainedConfig):
28
+ r"""
29
+ This is the configuration class to store the configuration of a [`DepthProModel`]. It is used to instantiate a
30
+ DepthPro model according to the specified arguments, defining the model architecture. Instantiating a configuration
31
+ with the defaults will yield a similar configuration to that of the DepthPro
32
+ [apple/DepthPro](https://huggingface.co/apple/DepthPro) architecture.
33
+
34
+ Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
35
+ documentation from [`PretrainedConfig`] for more information.
36
+
37
+ Args:
38
+ fusion_hidden_size (`int`, *optional*, defaults to 256):
39
+ The number of channels before fusion.
40
+ patch_size (`int`, *optional*, defaults to 384):
41
+ The size (resolution) of each patch. This is also the image_size for backbone model.
42
+ initializer_range (`float`, *optional*, defaults to 0.02):
43
+ The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
44
+ intermediate_hook_ids (`List[int]`, *optional*, defaults to `[11, 5]`):
45
+ Indices of the intermediate hidden states from the patch encoder to use for fusion.
46
+ intermediate_feature_dims (`List[int]`, *optional*, defaults to `[256, 256]`):
47
+ Hidden state dimensions during upsampling for each intermediate hidden state in `intermediate_hook_ids`.
48
+ scaled_images_ratios (`List[float]`, *optional*, defaults to `[0.25, 0.5, 1]`):
49
+ Ratios of scaled images to be used by the patch encoder.
50
+ scaled_images_overlap_ratios (`List[float]`, *optional*, defaults to `[0.0, 0.5, 0.25]`):
51
+ Overlap ratios between patches for each scaled image in `scaled_images_ratios`.
52
+ scaled_images_feature_dims (`List[int]`, *optional*, defaults to `[1024, 1024, 512]`):
53
+ Hidden state dimensions during upsampling for each scaled image in `scaled_images_ratios`.
54
+ merge_padding_value (`int`, *optional*, defaults to 3):
55
+ When merging smaller patches back to the image size, overlapping sections of this size are removed.
56
+ use_batch_norm_in_fusion_residual (`bool`, *optional*, defaults to `False`):
57
+ Whether to use batch normalization in the pre-activate residual units of the fusion blocks.
58
+ use_bias_in_fusion_residual (`bool`, *optional*, defaults to `True`):
59
+ Whether to use bias in the pre-activate residual units of the fusion blocks.
60
+ use_fov_model (`bool`, *optional*, defaults to `False`):
61
+ Whether to use `DepthProFovModel` to generate the field of view.
62
+ num_fov_head_layers (`int`, *optional*, defaults to 2):
63
+ Number of convolution layers in the head of `DepthProFovModel`.
64
+ image_model_config (`Union[Dict[str, Any], PretrainedConfig]`, *optional*):
65
+ The configuration of the image encoder model, which is loaded using the [`AutoModel`] API.
66
+ By default, Dinov2 model is used as backbone.
67
+ patch_model_config (`Union[Dict[str, Any], PretrainedConfig]`, *optional*):
68
+ The configuration of the patch encoder model, which is loaded using the [`AutoModel`] API.
69
+ By default, Dinov2 model is used as backbone.
70
+ fov_model_config (`Union[Dict[str, Any], PretrainedConfig]`, *optional*):
71
+ The configuration of the fov encoder model, which is loaded using the [`AutoModel`] API.
72
+ By default, Dinov2 model is used as backbone.
73
+
74
+ Example:
75
+
76
+ ```python
77
+ >>> from transformers import DepthProConfig, DepthProModel
78
+
79
+ >>> # Initializing a DepthPro apple/DepthPro style configuration
80
+ >>> configuration = DepthProConfig()
81
+
82
+ >>> # Initializing a model (with random weights) from the apple/DepthPro style configuration
83
+ >>> model = DepthProModel(configuration)
84
+
85
+ >>> # Accessing the model configuration
86
+ >>> configuration = model.config
87
+ ```"""
88
+
89
+ model_type = "depth_pro"
90
+ sub_configs = {"image_model_config": AutoConfig, "patch_model_config": AutoConfig, "fov_model_config": AutoConfig}
91
+
92
+ def __init__(
93
+ self,
94
+ fusion_hidden_size=256,
95
+ patch_size=384,
96
+ initializer_range=0.02,
97
+ intermediate_hook_ids=[11, 5],
98
+ intermediate_feature_dims=[256, 256],
99
+ scaled_images_ratios=[0.25, 0.5, 1],
100
+ scaled_images_overlap_ratios=[0.0, 0.5, 0.25],
101
+ scaled_images_feature_dims=[1024, 1024, 512],
102
+ merge_padding_value=3,
103
+ use_batch_norm_in_fusion_residual=False,
104
+ use_bias_in_fusion_residual=True,
105
+ use_fov_model=False,
106
+ num_fov_head_layers=2,
107
+ image_model_config=None,
108
+ patch_model_config=None,
109
+ fov_model_config=None,
110
+ **kwargs,
111
+ ):
112
+ super().__init__(**kwargs)
113
+
114
+ # scaled_images_ratios is sorted
115
+ if scaled_images_ratios != sorted(scaled_images_ratios):
116
+ raise ValueError(
117
+ f"Values in scaled_images_ratios={scaled_images_ratios} " "should be sorted from low to high"
118
+ )
119
+
120
+ # scaled_images_ratios, scaled_images_overlap_ratios, scaled_images_feature_dims should be consistent
121
+ if not (len(scaled_images_ratios) == len(scaled_images_overlap_ratios) == len(scaled_images_feature_dims)):
122
+ raise ValueError(
123
+ f"len(scaled_images_ratios)={len(scaled_images_ratios)} and "
124
+ f"len(scaled_images_overlap_ratios)={len(scaled_images_overlap_ratios)} and "
125
+ f"len(scaled_images_feature_dims)={len(scaled_images_feature_dims)}, "
126
+ f"should match in config."
127
+ )
128
+
129
+ # intermediate_hook_ids, intermediate_feature_dims should be consistent
130
+ if not (len(intermediate_hook_ids) == len(intermediate_feature_dims)):
131
+ raise ValueError(
132
+ f"len(intermediate_hook_ids)={len(intermediate_hook_ids)} and "
133
+ f"len(intermediate_feature_dims)={len(intermediate_feature_dims)}, "
134
+ f"should match in config."
135
+ )
136
+
137
+ # fusion_hidden_size should be consistent with num_fov_head_layers
138
+ if fusion_hidden_size // 2**num_fov_head_layers == 0:
139
+ raise ValueError(
140
+ f"fusion_hidden_size={fusion_hidden_size} should be consistent with num_fov_head_layers={num_fov_head_layers} "
141
+ "i.e fusion_hidden_size // 2**num_fov_head_layers > 0"
142
+ )
143
+
144
+ self.fusion_hidden_size = fusion_hidden_size
145
+ self.patch_size = patch_size
146
+ self.initializer_range = initializer_range
147
+ self.use_batch_norm_in_fusion_residual = use_batch_norm_in_fusion_residual
148
+ self.use_bias_in_fusion_residual = use_bias_in_fusion_residual
149
+ self.use_fov_model = use_fov_model
150
+ self.num_fov_head_layers = num_fov_head_layers
151
+ self.intermediate_hook_ids = intermediate_hook_ids
152
+ self.intermediate_feature_dims = intermediate_feature_dims
153
+ self.scaled_images_ratios = scaled_images_ratios
154
+ self.scaled_images_overlap_ratios = scaled_images_overlap_ratios
155
+ self.scaled_images_feature_dims = scaled_images_feature_dims
156
+ self.merge_padding_value = merge_padding_value
157
+ self.image_model_config = image_model_config
158
+ self.patch_model_config = patch_model_config
159
+ self.fov_model_config = fov_model_config
160
+
161
+ for sub_config_key in self.sub_configs.keys():
162
+ sub_config = getattr(self, sub_config_key)
163
+
164
+ if sub_config is None:
165
+ sub_config = CONFIG_MAPPING["dinov2"](image_size=patch_size)
166
+ logger.info(
167
+ f"`{sub_config_key}` is `None`. Initializing `{sub_config_key}` with the `Dinov2Config` "
168
+ f"with default values except `{sub_config_key}.image_size` is set to `config.patch_size`."
169
+ )
170
+ elif isinstance(sub_config, dict):
171
+ sub_config = deepcopy(sub_config)
172
+ if "model_type" not in sub_config:
173
+ raise KeyError(
174
+ f"The `model_type` key is missing in the `{sub_config_key}` dictionary. Please provide the model type."
175
+ )
176
+ elif sub_config["model_type"] not in CONFIG_MAPPING:
177
+ raise ValueError(
178
+ f"The model type `{sub_config['model_type']}` in `{sub_config_key}` is not supported. Please provide a valid model type."
179
+ )
180
+ image_size = sub_config.get("image_size")
181
+ if image_size != patch_size:
182
+ logger.info(
183
+ f"The `image_size` in `{sub_config_key}` is set to `{image_size}`, "
184
+ f"but it does not match the required `patch_size` of `{patch_size}`. "
185
+ f"Updating `image_size` to `{patch_size}` for consistency. "
186
+ f"Ensure that `image_size` aligns with `patch_size` in the configuration."
187
+ )
188
+ sub_config.update({"image_size": patch_size})
189
+ sub_config = CONFIG_MAPPING[sub_config["model_type"]](**sub_config)
190
+ elif isinstance(sub_config, PretrainedConfig):
191
+ sub_config = sub_config
192
+ image_size = getattr(sub_config, "image_size", None)
193
+ if image_size != patch_size:
194
+ raise ValueError(
195
+ f"`config.{sub_config_key}.image_size={image_size}` should match `config.patch_size={patch_size}`."
196
+ )
197
+ else:
198
+ raise TypeError(
199
+ f"Invalid type for `sub_config`. Expected `PretrainedConfig`, `dict`, or `None`, but got {type(sub_config)}."
200
+ )
201
+
202
+ setattr(self, sub_config_key, sub_config)
203
+
204
+
205
+ __all__ = ["DepthProConfig"]
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/depth_pro/convert_depth_pro_weights_to_hf.py ADDED
@@ -0,0 +1,254 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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
+ import argparse
16
+ import gc
17
+ import os
18
+
19
+ import regex as re
20
+ import torch
21
+ from huggingface_hub import hf_hub_download
22
+
23
+ from transformers import (
24
+ DepthProConfig,
25
+ DepthProForDepthEstimation,
26
+ DepthProImageProcessorFast,
27
+ )
28
+
29
+
30
+ # fmt: off
31
+ ORIGINAL_TO_CONVERTED_KEY_MAPPING = {
32
+
33
+ # encoder
34
+ r"encoder.(patch|image)_encoder.cls_token": r"depth_pro.encoder.\1_encoder.model.embeddings.cls_token",
35
+ r"encoder.(patch|image)_encoder.pos_embed": r"depth_pro.encoder.\1_encoder.model.embeddings.position_embeddings",
36
+ r"encoder.(patch|image)_encoder.patch_embed.proj.(weight|bias)": r"depth_pro.encoder.\1_encoder.model.embeddings.patch_embeddings.projection.\2",
37
+ r"encoder.(patch|image)_encoder.blocks.(\d+).norm(\d+).(weight|bias)": r"depth_pro.encoder.\1_encoder.model.encoder.layer.\2.norm\3.\4",
38
+ r"encoder.(patch|image)_encoder.blocks.(\d+).attn.qkv.(weight|bias)": r"depth_pro.encoder.\1_encoder.model.encoder.layer.\2.attention.attention.(query|key|value).\3",
39
+ r"encoder.(patch|image)_encoder.blocks.(\d+).attn.proj.(weight|bias)": r"depth_pro.encoder.\1_encoder.model.encoder.layer.\2.attention.output.dense.\3",
40
+ r"encoder.(patch|image)_encoder.blocks.(\d+).ls(\d+).gamma": r"depth_pro.encoder.\1_encoder.model.encoder.layer.\2.layer_scale\3.lambda1",
41
+ r"encoder.(patch|image)_encoder.blocks.(\d+).mlp.fc(\d+).(weight|bias)": r"depth_pro.encoder.\1_encoder.model.encoder.layer.\2.mlp.fc\3.\4",
42
+ r"encoder.(patch|image)_encoder.norm.(weight|bias)": r"depth_pro.encoder.\1_encoder.model.layernorm.\2",
43
+ r"encoder.fuse_lowres.(weight|bias)": r"depth_pro.neck.fuse_image_with_low_res.\1",
44
+
45
+ # fov
46
+ r"fov.encoder.0.cls_token": r"fov_model.fov_encoder.model.embeddings.cls_token",
47
+ r"fov.encoder.0.pos_embed": r"fov_model.fov_encoder.model.embeddings.position_embeddings",
48
+ r"fov.encoder.0.patch_embed.proj.(weight|bias)": r"fov_model.fov_encoder.model.embeddings.patch_embeddings.projection.\1",
49
+ r"fov.encoder.0.blocks.(\d+).norm(\d+).(weight|bias)": r"fov_model.fov_encoder.model.encoder.layer.\1.norm\2.\3",
50
+ r"fov.encoder.0.blocks.(\d+).attn.qkv.(weight|bias)": r"fov_model.fov_encoder.model.encoder.layer.\1.attention.attention.(query|key|value).\2",
51
+ r"fov.encoder.0.blocks.(\d+).attn.proj.(weight|bias)": r"fov_model.fov_encoder.model.encoder.layer.\1.attention.output.dense.\2",
52
+ r"fov.encoder.0.blocks.(\d+).ls(\d+).gamma": r"fov_model.fov_encoder.model.encoder.layer.\1.layer_scale\2.lambda1",
53
+ r"fov.encoder.0.blocks.(\d+).mlp.fc(\d+).(weight|bias)": r"fov_model.fov_encoder.model.encoder.layer.\1.mlp.fc\2.\3",
54
+ r"fov.encoder.0.norm.(weight|bias)": r"fov_model.fov_encoder.model.layernorm.\1",
55
+ r"fov.downsample.0.(weight|bias)": r"fov_model.conv.\1",
56
+ r"fov.encoder.1.(weight|bias)": r"fov_model.fov_encoder.neck.\1",
57
+ r"fov.head.(\d+).(weight|bias)": r"fov_model.head.layers.\1.\2",
58
+
59
+ # head
60
+ r"head.(\d+).(weight|bias)": r"head.layers.\1.\2",
61
+
62
+ # upsamples
63
+ r"encoder.upsample_lowres.(weight|bias)": r"depth_pro.neck.feature_upsample.image_block.layers.0.\1",
64
+ r"encoder.upsample_latent(\d+).(\d+).(weight|bias)": lambda match: (
65
+ f"depth_pro.neck.feature_upsample.intermediate.{1-int(match.group(1))}.layers.{match.group(2)}.{match.group(3)}"
66
+ ),
67
+ r"encoder.upsample(\d+).(\d+).(weight|bias)": lambda match: (
68
+ f"depth_pro.neck.feature_upsample.scaled_images.{2-int(match.group(1))}.layers.{match.group(2)}.{match.group(3)}"
69
+ ),
70
+
71
+ # projections between encoder and fusion
72
+ r"decoder.convs.(\d+).weight": lambda match: (
73
+ f"depth_pro.neck.feature_projection.projections.{4-int(match.group(1))}.weight"
74
+ ),
75
+
76
+ # fusion stage
77
+ r"decoder.fusions.([1234]).resnet(\d+).residual.(\d+).(weight|bias)": lambda match: (
78
+ f"fusion_stage.intermediate.{4-int(match.group(1))}.residual_layer{match.group(2)}.convolution{(int(match.group(3))+1)//2}.{match.group(4)}"
79
+ ),
80
+ r"decoder.fusions.0.resnet(\d+).residual.(\d+).(weight|bias)": lambda match: (
81
+ f"fusion_stage.final.residual_layer{match.group(1)}.convolution{(int(match.group(2))+1)//2}.{match.group(3)}"
82
+ ),
83
+ r"decoder.fusions.([1234]).out_conv.(weight|bias)": lambda match: (
84
+ f"fusion_stage.intermediate.{4-int(match.group(1))}.projection.{match.group(2)}"
85
+ ),
86
+ r"decoder.fusions.0.out_conv.(weight|bias)": lambda match: (
87
+ f"fusion_stage.final.projection.{match.group(1)}"
88
+ ),
89
+ r"decoder.fusions.(\d+).deconv.(weight|bias)": lambda match: (
90
+ f"fusion_stage.intermediate.{4-int(match.group(1))}.deconv.{match.group(2)}"
91
+ ),
92
+ }
93
+ # fmt: on
94
+
95
+
96
+ def convert_old_keys_to_new_keys(state_dict_keys: dict = None):
97
+ output_dict = {}
98
+ if state_dict_keys is not None:
99
+ old_text = "\n".join(state_dict_keys)
100
+ new_text = old_text
101
+ for pattern, replacement in ORIGINAL_TO_CONVERTED_KEY_MAPPING.items():
102
+ if replacement is None:
103
+ new_text = re.sub(pattern, "", new_text) # an empty line
104
+ continue
105
+ new_text = re.sub(pattern, replacement, new_text)
106
+ output_dict = dict(zip(old_text.split("\n"), new_text.split("\n")))
107
+ return output_dict
108
+
109
+
110
+ def get_qkv_state_dict(key, parameter):
111
+ """
112
+ new key which looks like this
113
+ xxxx.(q|k|v).xxx (m, n)
114
+
115
+ is converted to
116
+ xxxx.q.xxxx (m//3, n)
117
+ xxxx.k.xxxx (m//3, n)
118
+ xxxx.v.xxxx (m//3, n)
119
+ """
120
+ qkv_state_dict = {}
121
+ placeholder = re.search(r"(\(.*?\))", key).group(1) # finds "(query|key|value)"
122
+ replacements_keys = placeholder[1:-1].split("|") # creates ['query', 'key', 'value']
123
+ replacements_vals = torch.split(
124
+ parameter, split_size_or_sections=parameter.size(0) // len(replacements_keys), dim=0
125
+ )
126
+ for replacement_key, replacement_val in zip(replacements_keys, replacements_vals):
127
+ qkv_state_dict[key.replace(placeholder, replacement_key)] = replacement_val
128
+ return qkv_state_dict
129
+
130
+
131
+ def write_model(
132
+ hf_repo_id: str,
133
+ output_dir: str,
134
+ safe_serialization: bool = True,
135
+ ):
136
+ os.makedirs(output_dir, exist_ok=True)
137
+
138
+ # ------------------------------------------------------------
139
+ # Create and save config
140
+ # ------------------------------------------------------------
141
+
142
+ # create config
143
+ backbone_config = {
144
+ "model_type": "dinov2",
145
+ "num_hidden_layers": 24,
146
+ "patch_size": 16,
147
+ "hidden_size": 1024,
148
+ "num_attention_heads": 16,
149
+ "image_size": 384,
150
+ "use_mask_token": False,
151
+ }
152
+ config = DepthProConfig(
153
+ # original implementation uses same config for all 3 models
154
+ image_model_config=backbone_config,
155
+ patch_model_config=backbone_config,
156
+ fov_model_config=backbone_config,
157
+ use_fov_model=True,
158
+ )
159
+
160
+ # save config
161
+ config.save_pretrained(output_dir)
162
+ print("Model config saved successfully...")
163
+
164
+ # ------------------------------------------------------------
165
+ # Convert weights
166
+ # ------------------------------------------------------------
167
+
168
+ # download and load state_dict from hf repo
169
+ file_path = hf_hub_download(hf_repo_id, "depth_pro.pt")
170
+ loaded = torch.load(file_path, weights_only=True)
171
+
172
+ print("Converting model...")
173
+ all_keys = list(loaded.keys())
174
+ new_keys = convert_old_keys_to_new_keys(all_keys)
175
+
176
+ state_dict = {}
177
+ for key in all_keys:
178
+ new_key = new_keys[key]
179
+ current_parameter = loaded.pop(key)
180
+
181
+ if "qkv" in key:
182
+ qkv_state_dict = get_qkv_state_dict(new_key, current_parameter)
183
+ state_dict.update(qkv_state_dict)
184
+ else:
185
+ state_dict[new_key] = current_parameter
186
+
187
+ print("Loading the checkpoint in a DepthPro model.")
188
+ model = DepthProForDepthEstimation(config)
189
+ model.load_state_dict(state_dict, strict=True, assign=True)
190
+ print("Checkpoint loaded successfully.")
191
+
192
+ print("Saving the model.")
193
+ model.save_pretrained(output_dir, safe_serialization=safe_serialization)
194
+ del state_dict, model
195
+
196
+ # Safety check: reload the converted model
197
+ gc.collect()
198
+ print("Reloading the model to check if it's saved correctly.")
199
+ model = DepthProForDepthEstimation.from_pretrained(output_dir, device_map="auto")
200
+ print("Model reloaded successfully.")
201
+ return model
202
+
203
+
204
+ def write_image_processor(output_dir: str):
205
+ image_processor = DepthProImageProcessorFast()
206
+ image_processor.save_pretrained(output_dir)
207
+ return image_processor
208
+
209
+
210
+ def main():
211
+ parser = argparse.ArgumentParser()
212
+ parser.add_argument(
213
+ "--hf_repo_id",
214
+ default="apple/DepthPro",
215
+ help="Location of official weights from apple on HF",
216
+ )
217
+ parser.add_argument(
218
+ "--output_dir",
219
+ default="apple_DepthPro",
220
+ help="Location to write the converted model and processor",
221
+ )
222
+ parser.add_argument(
223
+ "--safe_serialization", default=True, type=bool, help="Whether or not to save using `safetensors`."
224
+ )
225
+ parser.add_argument(
226
+ "--push_to_hub",
227
+ action=argparse.BooleanOptionalAction,
228
+ help="Whether or not to push the converted model to the huggingface hub.",
229
+ )
230
+ parser.add_argument(
231
+ "--hub_repo_id",
232
+ default="apple/DepthPro-hf",
233
+ help="Huggingface hub repo to write the converted model and processor",
234
+ )
235
+ args = parser.parse_args()
236
+
237
+ model = write_model(
238
+ hf_repo_id=args.hf_repo_id,
239
+ output_dir=args.output_dir,
240
+ safe_serialization=args.safe_serialization,
241
+ )
242
+
243
+ image_processor = write_image_processor(
244
+ output_dir=args.output_dir,
245
+ )
246
+
247
+ if args.push_to_hub:
248
+ print("Pushing to hub...")
249
+ model.push_to_hub(args.hub_repo_id)
250
+ image_processor.push_to_hub(args.hub_repo_id)
251
+
252
+
253
+ if __name__ == "__main__":
254
+ main()
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/depth_pro/image_processing_depth_pro.py ADDED
@@ -0,0 +1,389 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2024 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
+ """Image processor class for DepthPro."""
16
+
17
+ from typing import TYPE_CHECKING, Dict, List, Optional, Tuple, Union
18
+
19
+ import numpy as np
20
+
21
+
22
+ if TYPE_CHECKING:
23
+ from .modeling_depth_pro import DepthProDepthEstimatorOutput
24
+
25
+ from ...image_processing_utils import BaseImageProcessor, BatchFeature, get_size_dict
26
+ from ...image_transforms import to_channel_dimension_format
27
+ from ...image_utils import (
28
+ IMAGENET_STANDARD_MEAN,
29
+ IMAGENET_STANDARD_STD,
30
+ ChannelDimension,
31
+ ImageInput,
32
+ PILImageResampling,
33
+ infer_channel_dimension_format,
34
+ is_scaled_image,
35
+ is_torch_available,
36
+ make_list_of_images,
37
+ pil_torch_interpolation_mapping,
38
+ to_numpy_array,
39
+ valid_images,
40
+ )
41
+ from ...utils import (
42
+ TensorType,
43
+ filter_out_non_signature_kwargs,
44
+ logging,
45
+ requires_backends,
46
+ )
47
+
48
+
49
+ if is_torch_available():
50
+ import torch
51
+
52
+
53
+ logger = logging.get_logger(__name__)
54
+
55
+
56
+ class DepthProImageProcessor(BaseImageProcessor):
57
+ r"""
58
+ Constructs a DepthPro image processor.
59
+
60
+ Args:
61
+ do_resize (`bool`, *optional*, defaults to `True`):
62
+ Whether to resize the image's (height, width) dimensions to the specified `(size["height"],
63
+ size["width"])`. Can be overridden by the `do_resize` parameter in the `preprocess` method.
64
+ size (`dict`, *optional*, defaults to `{"height": 1536, "width": 1536}`):
65
+ Size of the output image after resizing. Can be overridden by the `size` parameter in the `preprocess`
66
+ method.
67
+ resample (`PILImageResampling`, *optional*, defaults to `Resampling.BILINEAR`):
68
+ Resampling filter to use if resizing the image. Can be overridden by the `resample` parameter in the
69
+ `preprocess` method.
70
+ do_rescale (`bool`, *optional*, defaults to `True`):
71
+ Whether to rescale the image by the specified scale `rescale_factor`. Can be overridden by the `do_rescale`
72
+ parameter in 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 overridden by the `rescale_factor` parameter in the
75
+ `preprocess` 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: Optional[Dict[str, int]] = None,
93
+ resample: PILImageResampling = PILImageResampling.BILINEAR,
94
+ do_rescale: bool = True,
95
+ rescale_factor: Union[int, float] = 1 / 255,
96
+ do_normalize: bool = True,
97
+ image_mean: Optional[Union[float, List[float]]] = None,
98
+ image_std: Optional[Union[float, List[float]]] = None,
99
+ **kwargs,
100
+ ):
101
+ super().__init__(**kwargs)
102
+ size = size if size is not None else {"height": 1536, "width": 1536}
103
+ size = get_size_dict(size)
104
+ self.do_resize = do_resize
105
+ self.do_rescale = do_rescale
106
+ self.do_normalize = do_normalize
107
+ self.size = size
108
+ self.resample = resample
109
+ self.rescale_factor = rescale_factor
110
+ self.image_mean = image_mean if image_mean is not None else IMAGENET_STANDARD_MEAN
111
+ self.image_std = image_std if image_std is not None else IMAGENET_STANDARD_STD
112
+
113
+ def resize(
114
+ self,
115
+ image: np.ndarray,
116
+ size: Dict[str, int],
117
+ resample: PILImageResampling = PILImageResampling.BILINEAR,
118
+ data_format: Optional[Union[str, ChannelDimension]] = None,
119
+ input_data_format: Optional[Union[str, ChannelDimension]] = None,
120
+ **kwargs,
121
+ ) -> np.ndarray:
122
+ """
123
+ Resize an image to `(size["height"], size["width"])`.
124
+
125
+ Args:
126
+ image (`np.ndarray`):
127
+ Image to resize.
128
+ size (`Dict[str, int]`):
129
+ Dictionary in the format `{"height": int, "width": int}` specifying the size of the output image.
130
+ resample (`PILImageResampling`, *optional*, defaults to `PILImageResampling.BILINEAR`):
131
+ `PILImageResampling` filter to use when resizing the image e.g. `PILImageResampling.BILINEAR`.
132
+ data_format (`ChannelDimension` or `str`, *optional*):
133
+ The channel dimension format for the output image. If unset, the channel dimension format of the input
134
+ image is used. Can be one of:
135
+ - `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format.
136
+ - `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format.
137
+ - `"none"` or `ChannelDimension.NONE`: image in (height, width) format.
138
+ input_data_format (`ChannelDimension` or `str`, *optional*):
139
+ The channel dimension format for the input image. If unset, the channel dimension format is inferred
140
+ from the input image. Can be one of:
141
+ - `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format.
142
+ - `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format.
143
+ - `"none"` or `ChannelDimension.NONE`: image in (height, width) format.
144
+
145
+ Returns:
146
+ `np.ndarray`: The resized images.
147
+ """
148
+ requires_backends(self, "torch")
149
+
150
+ size = get_size_dict(size)
151
+ if "height" not in size or "width" not in size:
152
+ raise ValueError(f"The `size` dictionary must contain the keys `height` and `width`. Got {size.keys()}")
153
+ output_size = (size["height"], size["width"])
154
+
155
+ # we use torch interpolation instead of image.resize because DepthProImageProcessor
156
+ # rescales, then normalizes, which may cause some values to become negative, before resizing the image.
157
+ # image.resize expects all values to be in range [0, 1] or [0, 255] and throws an exception otherwise,
158
+ # however pytorch interpolation works with negative values.
159
+ # relevant issue here: https://github.com/huggingface/transformers/issues/34920
160
+ # input should be (B, C, H, W)
161
+ image_tensor = torch.from_numpy(image).unsqueeze(0)
162
+ resized_image = torch.nn.functional.interpolate(
163
+ input=image_tensor,
164
+ size=output_size,
165
+ mode=pil_torch_interpolation_mapping[resample].value,
166
+ )
167
+ resized_image = resized_image.squeeze(0).numpy()
168
+ return resized_image
169
+
170
+ def _validate_input_arguments(
171
+ self,
172
+ do_resize: bool,
173
+ size: Dict[str, int],
174
+ resample: PILImageResampling,
175
+ do_rescale: bool,
176
+ rescale_factor: float,
177
+ do_normalize: bool,
178
+ image_mean: Union[float, List[float]],
179
+ image_std: Union[float, List[float]],
180
+ data_format: Union[str, ChannelDimension],
181
+ ):
182
+ if do_resize and None in (size, resample):
183
+ raise ValueError("Size and resample must be specified if do_resize is True.")
184
+
185
+ if do_rescale and rescale_factor is None:
186
+ raise ValueError("Rescale factor must be specified if do_rescale is True.")
187
+
188
+ if do_normalize and None in (image_mean, image_std):
189
+ raise ValueError("Image mean and standard deviation must be specified if do_normalize is True.")
190
+
191
+ @filter_out_non_signature_kwargs()
192
+ def preprocess(
193
+ self,
194
+ images: ImageInput,
195
+ do_resize: Optional[bool] = None,
196
+ size: Optional[Dict[str, int]] = None,
197
+ resample: Optional[PILImageResampling] = None,
198
+ do_rescale: Optional[bool] = None,
199
+ rescale_factor: Optional[float] = None,
200
+ do_normalize: Optional[bool] = None,
201
+ image_mean: Optional[Union[float, List[float]]] = None,
202
+ image_std: Optional[Union[float, List[float]]] = None,
203
+ return_tensors: Optional[Union[str, TensorType]] = None,
204
+ data_format: Union[str, ChannelDimension] = ChannelDimension.FIRST,
205
+ input_data_format: Optional[Union[str, ChannelDimension]] = None,
206
+ ):
207
+ """
208
+ Preprocess an image or batch of images.
209
+
210
+ Args:
211
+ images (`ImageInput`):
212
+ Image to preprocess. Expects a single or batch of images with pixel values ranging from 0 to 255. If
213
+ passing in images with pixel values between 0 and 1, set `do_rescale=False`.
214
+ do_resize (`bool`, *optional*, defaults to `self.do_resize`):
215
+ Whether to resize the image.
216
+ size (`Dict[str, int]`, *optional*, defaults to `self.size`):
217
+ Dictionary in the format `{"height": h, "width": w}` specifying the size of the output image after
218
+ resizing.
219
+ resample (`PILImageResampling` filter, *optional*, defaults to `self.resample`):
220
+ `PILImageResampling` filter to use if resizing the image e.g. `PILImageResampling.BILINEAR`. Only has
221
+ 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 to use if `do_normalize` is set to `True`.
230
+ image_std (`float` or `List[float]`, *optional*, defaults to `self.image_std`):
231
+ Image standard deviation to use if `do_normalize` is set to `True`.
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
+ do_rescale = do_rescale if do_rescale is not None else self.do_rescale
253
+ do_normalize = do_normalize if do_normalize is not None else self.do_normalize
254
+ resample = resample if resample is not None else self.resample
255
+ rescale_factor = rescale_factor if rescale_factor is not None else self.rescale_factor
256
+ image_mean = image_mean if image_mean is not None else self.image_mean
257
+ image_std = image_std if image_std is not None else self.image_std
258
+
259
+ size = size if size is not None else self.size
260
+
261
+ images = make_list_of_images(images)
262
+
263
+ if not valid_images(images):
264
+ raise ValueError(
265
+ "Invalid image type. Must be of type PIL.Image.Image, numpy.ndarray, "
266
+ "torch.Tensor, tf.Tensor or jax.ndarray."
267
+ )
268
+ self._validate_input_arguments(
269
+ do_resize=do_resize,
270
+ size=size,
271
+ resample=resample,
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
+ data_format=data_format,
278
+ )
279
+
280
+ # All transformations expect numpy arrays.
281
+ images = [to_numpy_array(image) for image in images]
282
+
283
+ if is_scaled_image(images[0]) and do_rescale:
284
+ logger.warning_once(
285
+ "It looks like you are trying to rescale already rescaled images. If the input"
286
+ " images have pixel values between 0 and 1, set `do_rescale=False` to avoid rescaling them again."
287
+ )
288
+
289
+ if input_data_format is None:
290
+ # We assume that all images have the same channel dimension format.
291
+ input_data_format = infer_channel_dimension_format(images[0])
292
+
293
+ all_images = []
294
+ for image in images:
295
+ if do_rescale:
296
+ image = self.rescale(image=image, scale=rescale_factor, input_data_format=input_data_format)
297
+
298
+ if do_normalize:
299
+ image = self.normalize(
300
+ image=image, mean=image_mean, std=image_std, input_data_format=input_data_format
301
+ )
302
+
303
+ # depth-pro rescales and normalizes the image before resizing it
304
+ # uses torch interpolation which requires ChannelDimension.FIRST
305
+ if do_resize:
306
+ image = to_channel_dimension_format(image, ChannelDimension.FIRST, input_channel_dim=input_data_format)
307
+ image = self.resize(image=image, size=size, resample=resample)
308
+ image = to_channel_dimension_format(image, data_format, input_channel_dim=ChannelDimension.FIRST)
309
+ else:
310
+ image = to_channel_dimension_format(image, data_format, input_channel_dim=input_data_format)
311
+
312
+ all_images.append(image)
313
+
314
+ data = {"pixel_values": all_images}
315
+ return BatchFeature(data=data, tensor_type=return_tensors)
316
+
317
+ def post_process_depth_estimation(
318
+ self,
319
+ outputs: "DepthProDepthEstimatorOutput",
320
+ target_sizes: Optional[Union[TensorType, List[Tuple[int, int]], None]] = None,
321
+ ) -> Dict[str, List[TensorType]]:
322
+ """
323
+ Post-processes the raw depth predictions from the model to generate
324
+ final depth predictions which is caliberated using the field of view if provided
325
+ and resized to specified target sizes if provided.
326
+
327
+ Args:
328
+ outputs ([`DepthProDepthEstimatorOutput`]):
329
+ Raw outputs of the model.
330
+ target_sizes (`Optional[Union[TensorType, List[Tuple[int, int]], None]]`, *optional*, defaults to `None`):
331
+ Target sizes to resize the depth predictions. Can be a tensor of shape `(batch_size, 2)`
332
+ or a list of tuples `(height, width)` for each image in the batch. If `None`, no resizing
333
+ is performed.
334
+
335
+ Returns:
336
+ `List[Dict[str, TensorType]]`: A list of dictionaries of tensors representing the processed depth
337
+ predictions, and field of view (degrees) and focal length (pixels) if `field_of_view` is given in `outputs`.
338
+
339
+ Raises:
340
+ `ValueError`:
341
+ If the lengths of `predicted_depths`, `fovs`, or `target_sizes` are mismatched.
342
+ """
343
+ requires_backends(self, "torch")
344
+
345
+ predicted_depth = outputs.predicted_depth
346
+ fov = outputs.field_of_view
347
+
348
+ batch_size = len(predicted_depth)
349
+
350
+ if target_sizes is not None and batch_size != len(target_sizes):
351
+ raise ValueError(
352
+ "Make sure that you pass in as many fov values as the batch dimension of the predicted depth"
353
+ )
354
+
355
+ results = []
356
+ fov = [None] * batch_size if fov is None else fov
357
+ target_sizes = [None] * batch_size if target_sizes is None else target_sizes
358
+ for depth, fov_value, target_size in zip(predicted_depth, fov, target_sizes):
359
+ focal_length = None
360
+ if target_size is not None:
361
+ # scale image w.r.t fov
362
+ if fov_value is not None:
363
+ width = target_size[1]
364
+ focal_length = 0.5 * width / torch.tan(0.5 * torch.deg2rad(fov_value))
365
+ depth = depth * width / focal_length
366
+
367
+ # interpolate
368
+ depth = torch.nn.functional.interpolate(
369
+ # input should be (B, C, H, W)
370
+ input=depth.unsqueeze(0).unsqueeze(1),
371
+ size=target_size,
372
+ mode=pil_torch_interpolation_mapping[self.resample].value,
373
+ ).squeeze()
374
+
375
+ # inverse the depth
376
+ depth = 1.0 / torch.clamp(depth, min=1e-4, max=1e4)
377
+
378
+ results.append(
379
+ {
380
+ "predicted_depth": depth,
381
+ "field_of_view": fov_value,
382
+ "focal_length": focal_length,
383
+ }
384
+ )
385
+
386
+ return results
387
+
388
+
389
+ __all__ = ["DepthProImageProcessor"]
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/depth_pro/image_processing_depth_pro_fast.py ADDED
@@ -0,0 +1,187 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2024 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
+ """Fast Image processor class for DepthPro."""
16
+
17
+ from typing import TYPE_CHECKING, Dict, List, Optional, Tuple, Union
18
+
19
+ from ...image_processing_base import BatchFeature
20
+ from ...image_processing_utils_fast import (
21
+ BASE_IMAGE_PROCESSOR_FAST_DOCSTRING,
22
+ BaseImageProcessorFast,
23
+ group_images_by_shape,
24
+ reorder_images,
25
+ )
26
+ from ...image_utils import (
27
+ IMAGENET_STANDARD_MEAN,
28
+ IMAGENET_STANDARD_STD,
29
+ PILImageResampling,
30
+ SizeDict,
31
+ )
32
+ from ...utils import (
33
+ TensorType,
34
+ add_start_docstrings,
35
+ is_torch_available,
36
+ is_torchvision_available,
37
+ is_torchvision_v2_available,
38
+ logging,
39
+ requires_backends,
40
+ )
41
+
42
+
43
+ if TYPE_CHECKING:
44
+ from .modeling_depth_pro import DepthProDepthEstimatorOutput
45
+
46
+ logger = logging.get_logger(__name__)
47
+
48
+
49
+ if is_torch_available():
50
+ import torch
51
+
52
+
53
+ if is_torchvision_available():
54
+ from ...image_utils import pil_torch_interpolation_mapping
55
+
56
+ if is_torchvision_v2_available():
57
+ from torchvision.transforms.v2 import functional as F
58
+ else:
59
+ from torchvision.transforms import functional as F
60
+
61
+
62
+ @add_start_docstrings(
63
+ "Constructs a fast DepthPro image processor.",
64
+ BASE_IMAGE_PROCESSOR_FAST_DOCSTRING,
65
+ )
66
+ class DepthProImageProcessorFast(BaseImageProcessorFast):
67
+ resample = PILImageResampling.BILINEAR
68
+ image_mean = IMAGENET_STANDARD_MEAN
69
+ image_std = IMAGENET_STANDARD_STD
70
+ size = {"height": 1536, "width": 1536}
71
+ do_resize = True
72
+ do_rescale = True
73
+ do_normalize = True
74
+
75
+ # DepthPro resizes image after rescaling and normalizing,
76
+ # which makes it different from BaseImageProcessorFast._preprocess
77
+ def _preprocess(
78
+ self,
79
+ images: List["torch.Tensor"],
80
+ do_resize: bool,
81
+ size: SizeDict,
82
+ interpolation: Optional["F.InterpolationMode"],
83
+ do_center_crop: bool,
84
+ crop_size: SizeDict,
85
+ do_rescale: bool,
86
+ rescale_factor: float,
87
+ do_normalize: bool,
88
+ image_mean: Optional[Union[float, List[float]]],
89
+ image_std: Optional[Union[float, List[float]]],
90
+ return_tensors: Optional[Union[str, TensorType]],
91
+ ) -> BatchFeature:
92
+ # Group images by size for batched scaling
93
+ grouped_images, grouped_images_index = group_images_by_shape(images)
94
+ processed_images_grouped = {}
95
+ for shape, stacked_images in grouped_images.items():
96
+ # Fused rescale and normalize
97
+ stacked_images = self.rescale_and_normalize(
98
+ stacked_images, do_rescale, rescale_factor, do_normalize, image_mean, image_std
99
+ )
100
+ if do_resize:
101
+ stacked_images = self.resize(
102
+ image=stacked_images,
103
+ size=size,
104
+ interpolation=interpolation,
105
+ antialias=False,
106
+ )
107
+ processed_images_grouped[shape] = stacked_images
108
+
109
+ processed_images = reorder_images(processed_images_grouped, grouped_images_index)
110
+ processed_images = torch.stack(processed_images, dim=0) if return_tensors else processed_images
111
+
112
+ return BatchFeature(data={"pixel_values": processed_images}, tensor_type=return_tensors)
113
+
114
+ # Copied from transformers.models.depth_pro.image_processing_depth_pro.DepthProImageProcessor.post_process_depth_estimation
115
+ def post_process_depth_estimation(
116
+ self,
117
+ outputs: "DepthProDepthEstimatorOutput",
118
+ target_sizes: Optional[Union[TensorType, List[Tuple[int, int]], None]] = None,
119
+ ) -> Dict[str, List[TensorType]]:
120
+ """
121
+ Post-processes the raw depth predictions from the model to generate
122
+ final depth predictions which is caliberated using the field of view if provided
123
+ and resized to specified target sizes if provided.
124
+
125
+ Args:
126
+ outputs ([`DepthProDepthEstimatorOutput`]):
127
+ Raw outputs of the model.
128
+ target_sizes (`Optional[Union[TensorType, List[Tuple[int, int]], None]]`, *optional*, defaults to `None`):
129
+ Target sizes to resize the depth predictions. Can be a tensor of shape `(batch_size, 2)`
130
+ or a list of tuples `(height, width)` for each image in the batch. If `None`, no resizing
131
+ is performed.
132
+
133
+ Returns:
134
+ `List[Dict[str, TensorType]]`: A list of dictionaries of tensors representing the processed depth
135
+ predictions, and field of view (degrees) and focal length (pixels) if `field_of_view` is given in `outputs`.
136
+
137
+ Raises:
138
+ `ValueError`:
139
+ If the lengths of `predicted_depths`, `fovs`, or `target_sizes` are mismatched.
140
+ """
141
+ requires_backends(self, "torch")
142
+
143
+ predicted_depth = outputs.predicted_depth
144
+ fov = outputs.field_of_view
145
+
146
+ batch_size = len(predicted_depth)
147
+
148
+ if target_sizes is not None and batch_size != len(target_sizes):
149
+ raise ValueError(
150
+ "Make sure that you pass in as many fov values as the batch dimension of the predicted depth"
151
+ )
152
+
153
+ results = []
154
+ fov = [None] * batch_size if fov is None else fov
155
+ target_sizes = [None] * batch_size if target_sizes is None else target_sizes
156
+ for depth, fov_value, target_size in zip(predicted_depth, fov, target_sizes):
157
+ focal_length = None
158
+ if target_size is not None:
159
+ # scale image w.r.t fov
160
+ if fov_value is not None:
161
+ width = target_size[1]
162
+ focal_length = 0.5 * width / torch.tan(0.5 * torch.deg2rad(fov_value))
163
+ depth = depth * width / focal_length
164
+
165
+ # interpolate
166
+ depth = torch.nn.functional.interpolate(
167
+ # input should be (B, C, H, W)
168
+ input=depth.unsqueeze(0).unsqueeze(1),
169
+ size=target_size,
170
+ mode=pil_torch_interpolation_mapping[self.resample].value,
171
+ ).squeeze()
172
+
173
+ # inverse the depth
174
+ depth = 1.0 / torch.clamp(depth, min=1e-4, max=1e4)
175
+
176
+ results.append(
177
+ {
178
+ "predicted_depth": depth,
179
+ "field_of_view": fov_value,
180
+ "focal_length": focal_length,
181
+ }
182
+ )
183
+
184
+ return results
185
+
186
+
187
+ __all__ = ["DepthProImageProcessorFast"]
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/depth_pro/modeling_depth_pro.py ADDED
@@ -0,0 +1,1218 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2024 The Apple Research Team Authors and 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
+ """PyTorch DepthPro model."""
16
+
17
+ import math
18
+ from dataclasses import dataclass
19
+ from typing import List, Optional, Tuple, Union
20
+
21
+ import torch
22
+ import torch.nn.functional as F
23
+ from torch import nn
24
+
25
+ from ...modeling_outputs import BaseModelOutput
26
+ from ...modeling_utils import PreTrainedModel
27
+ from ...utils import (
28
+ ModelOutput,
29
+ add_start_docstrings,
30
+ add_start_docstrings_to_model_forward,
31
+ logging,
32
+ replace_return_docstrings,
33
+ torch_int,
34
+ )
35
+ from ..auto import AutoModel
36
+ from .configuration_depth_pro import DepthProConfig
37
+
38
+
39
+ logger = logging.get_logger(__name__)
40
+
41
+
42
+ @dataclass
43
+ class DepthProOutput(ModelOutput):
44
+ """
45
+ Base class for DepthPro's outputs.
46
+
47
+ Args:
48
+ last_hidden_state (`torch.FloatTensor` of shape `(batch_size, n_patches_per_batch, sequence_length, hidden_size)`):
49
+ Sequence of hidden-states at the output of the last layer of the model.
50
+ features (`Union[torch.FloatTensor, List[torch.FloatTensor]]`, *optional*):
51
+ Features from encoders. Can be a single feature or a list of features.
52
+ hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
53
+ Tuple of `torch.FloatTensor` (one for the output of the embeddings, if the model has an embedding layer, +
54
+ one for the output of each layer) of shape `(batch_size, n_patches_per_batch, sequence_length, hidden_size)`.
55
+
56
+ Hidden-states of the model at the output of each layer and the optional initial embedding outputs.
57
+ attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
58
+ Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, n_patches_per_batch, num_heads, sequence_length,
59
+ sequence_length)`.
60
+
61
+ Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
62
+ heads.
63
+ """
64
+
65
+ last_hidden_state: torch.FloatTensor = None
66
+ features: Union[torch.FloatTensor, List[torch.FloatTensor]] = None
67
+ hidden_states: Optional[Tuple[torch.FloatTensor, ...]] = None
68
+ attentions: Optional[Tuple[torch.FloatTensor, ...]] = None
69
+
70
+
71
+ @dataclass
72
+ class DepthProDepthEstimatorOutput(ModelOutput):
73
+ """
74
+ Base class for DepthProForDepthEstimation's output.
75
+
76
+ Args:
77
+ loss (`torch.FloatTensor` of shape `(1,)`, *optional*, returned when `labels` is provided):
78
+ Classification (or regression if config.num_labels==1) loss.
79
+ predicted_depth (`torch.FloatTensor` of shape `(batch_size, height, width)`):
80
+ Predicted depth for each pixel.
81
+ field_of_view (`torch.FloatTensor` of shape `(batch_size,)`, *optional*, returned when `use_fov_model` is provided):
82
+ Field of View Scaler.
83
+ hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
84
+ Tuple of `torch.FloatTensor` (one for the output of the embeddings, if the model has an embedding layer, +
85
+ one for the output of each layer) of shape `(batch_size, n_patches_per_batch, sequence_length, hidden_size)`.
86
+
87
+ Hidden-states of the model at the output of each layer and the optional initial embedding outputs.
88
+ attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
89
+ Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, n_patches_per_batch, num_heads, sequence_length,
90
+ sequence_length)`.
91
+
92
+ Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
93
+ heads.
94
+ """
95
+
96
+ loss: Optional[torch.FloatTensor] = None
97
+ predicted_depth: torch.FloatTensor = None
98
+ field_of_view: Optional[torch.FloatTensor] = None
99
+ hidden_states: Optional[Tuple[torch.FloatTensor, ...]] = None
100
+ attentions: Optional[Tuple[torch.FloatTensor, ...]] = None
101
+
102
+
103
+ def split_to_patches(pixel_values: torch.Tensor, patch_size: int, overlap_ratio: float) -> torch.Tensor:
104
+ """Creates Patches from Batch."""
105
+ batch_size, num_channels, height, width = pixel_values.shape
106
+
107
+ if height == width == patch_size:
108
+ # create patches only if scaled image is not already equal to patch size
109
+ return pixel_values
110
+
111
+ stride = torch_int(patch_size * (1 - overlap_ratio))
112
+
113
+ patches = F.unfold(pixel_values, kernel_size=(patch_size, patch_size), stride=(stride, stride))
114
+ patches = patches.permute(2, 0, 1)
115
+ patches = patches.reshape(-1, num_channels, patch_size, patch_size)
116
+
117
+ return patches
118
+
119
+
120
+ def reshape_features(hidden_states: torch.Tensor) -> torch.Tensor:
121
+ """Discard class token and reshape 1D feature map to a 2D grid."""
122
+ n_samples, seq_len, hidden_size = hidden_states.shape
123
+ size = torch_int(seq_len**0.5)
124
+
125
+ hidden_states = hidden_states[:, -(size**2) :, :] # remove special tokens if there are any
126
+ hidden_states = hidden_states.reshape(n_samples, size, size, hidden_size)
127
+ hidden_states = hidden_states.permute(0, 3, 1, 2)
128
+
129
+ return hidden_states
130
+
131
+
132
+ def merge_patches(patches: torch.Tensor, batch_size: int, padding: int) -> torch.Tensor:
133
+ """Merges smaller patches into image-like feature map."""
134
+ n_patches, hidden_size, out_size, out_size = patches.shape
135
+ n_patches_per_batch = n_patches // batch_size
136
+ sqrt_n_patches_per_batch = torch_int(n_patches_per_batch**0.5)
137
+ new_out_size = sqrt_n_patches_per_batch * out_size
138
+
139
+ if n_patches == batch_size:
140
+ # merge only if the patches were created from scaled image
141
+ # patches are not created when scaled image size is equal to patch size
142
+ return patches
143
+
144
+ if n_patches_per_batch < 4:
145
+ # for each batch, atleast 4 small patches are required to
146
+ # recreate a large square patch from merging them and later padding is applied
147
+ # 3 x (8x8) patches becomes 1 x ( 8x8 ) patch (extra patch ignored, no padding)
148
+ # 4 x (8x8) patches becomes 1 x (16x16) patch (padding later)
149
+ # 5 x (8x8) patches becomes 1 x (16x16) patch (extra patch ignored, padding later)
150
+ # 9 x (8x8) patches becomes 1 x (24x24) patch (padding later)
151
+ # thus the following code only rearranges the patches and removes extra ones
152
+ padding = 0
153
+
154
+ # make sure padding is not large enough to remove more than half of the patch
155
+ padding = min(out_size // 4, padding)
156
+
157
+ if padding == 0:
158
+ # faster when no padding is required
159
+ merged = patches.reshape(n_patches_per_batch, batch_size, hidden_size, out_size, out_size)
160
+ merged = merged.permute(1, 2, 0, 3, 4)
161
+ merged = merged[:, :, : sqrt_n_patches_per_batch**2, :, :]
162
+ merged = merged.reshape(
163
+ batch_size, hidden_size, sqrt_n_patches_per_batch, sqrt_n_patches_per_batch, out_size, out_size
164
+ )
165
+ merged = merged.permute(0, 1, 2, 4, 3, 5)
166
+ merged = merged.reshape(batch_size, hidden_size, new_out_size, new_out_size)
167
+ else:
168
+ # padding example:
169
+ # let out_size = 8, new_out_size = 32, padding = 2
170
+ # each patch is separated by "|"
171
+ # and padding is applied to the merging edges of each patch
172
+ # 00 01 02 03 04 05 06 07 | 08 09 10 11 12 13 14 15 | 16 17 18 19 20 21 22 23 | 24 25 26 27 28 29 30 31
173
+ # 00 01 02 03 04 05 -- -- | -- -- 10 11 12 13 -- -- | -- -- 18 19 20 21 -- -- | -- -- 26 27 28 29 30 31
174
+ i = 0
175
+ boxes = []
176
+ for h in range(sqrt_n_patches_per_batch):
177
+ boxes_in_row = []
178
+ for w in range(sqrt_n_patches_per_batch):
179
+ box = patches[batch_size * i : batch_size * (i + 1)]
180
+
181
+ # collect paddings
182
+ paddings = [0, 0, 0, 0]
183
+ if h != 0:
184
+ # remove pad from height if box is not at top border
185
+ paddings[0] = padding
186
+ if w != 0:
187
+ # remove pad from width if box is not at left border
188
+ paddings[2] = padding
189
+ if h != sqrt_n_patches_per_batch - 1:
190
+ # remove pad from height if box is not at bottom border
191
+ paddings[1] = padding
192
+ if w != sqrt_n_patches_per_batch - 1:
193
+ # remove pad from width if box is not at right border
194
+ paddings[3] = padding
195
+
196
+ # remove paddings
197
+ _, _, box_h, box_w = box.shape
198
+ pad_top, pad_bottom, pad_left, pad_right = paddings
199
+ box = box[:, :, pad_top : box_h - pad_bottom, pad_left : box_w - pad_right]
200
+
201
+ boxes_in_row.append(box)
202
+ i += 1
203
+ boxes_in_row = torch.cat(boxes_in_row, dim=-1)
204
+ boxes.append(boxes_in_row)
205
+ merged = torch.cat(boxes, dim=-2)
206
+
207
+ return merged
208
+
209
+
210
+ def reconstruct_feature_maps(
211
+ hidden_state: torch.Tensor, batch_size: int, padding: int, output_size: Tuple[float, float]
212
+ ) -> torch.Tensor:
213
+ """
214
+ Reconstructs feature maps from the hidden state produced by any of the encoder. Converts the hidden state of shape
215
+ `(n_patches_per_batch * batch_size, seq_len, hidden_size)` to feature maps of shape
216
+ `(batch_size, hidden_size, output_size[0], output_size[1])`.
217
+
218
+ Args:
219
+ hidden_state (torch.Tensor): Input tensor of shape `(n_patches_per_batch * batch_size, seq_len, hidden_size)`
220
+ representing the encoded patches.
221
+ batch_size (int): The number of samples in a batch.
222
+ padding (int): The amount of padding to be removed when merging patches.
223
+ output_size (Tuple[float, float]): The desired output size for the feature maps, specified as `(height, width)`.
224
+
225
+ Returns:
226
+ torch.Tensor: Reconstructed feature maps of shape `(batch_size, hidden_size, output_size[0], output_size[1])`.
227
+ """
228
+ # reshape back to image like
229
+ features = reshape_features(hidden_state)
230
+
231
+ # merge all patches in a batch to create one large patch per batch
232
+ features = merge_patches(
233
+ features,
234
+ batch_size=batch_size,
235
+ padding=padding,
236
+ )
237
+
238
+ # interpolate patches to base size
239
+ features = F.interpolate(
240
+ features,
241
+ size=output_size,
242
+ mode="bilinear",
243
+ align_corners=False,
244
+ )
245
+
246
+ return features
247
+
248
+
249
+ class DepthProPatchEncoder(nn.Module):
250
+ def __init__(self, config: DepthProConfig):
251
+ super().__init__()
252
+ self.config = config
253
+
254
+ self.intermediate_hook_ids = config.intermediate_hook_ids
255
+ self.intermediate_feature_dims = config.intermediate_feature_dims
256
+ self.scaled_images_ratios = config.scaled_images_ratios
257
+ self.scaled_images_overlap_ratios = config.scaled_images_overlap_ratios
258
+ self.scaled_images_feature_dims = config.scaled_images_feature_dims
259
+ self.merge_padding_value = config.merge_padding_value
260
+
261
+ self.n_scaled_images = len(config.scaled_images_ratios)
262
+ self.n_intermediate_hooks = len(config.intermediate_hook_ids)
263
+ self.out_size = config.image_model_config.image_size // config.image_model_config.patch_size
264
+
265
+ self.model = AutoModel.from_config(config.patch_model_config)
266
+
267
+ def forward(
268
+ self,
269
+ pixel_values: torch.Tensor,
270
+ head_mask: Optional[torch.Tensor] = None,
271
+ ) -> List[torch.Tensor]:
272
+ batch_size, num_channels, height, width = pixel_values.shape
273
+
274
+ if min(self.scaled_images_ratios) * min(height, width) < self.config.patch_size:
275
+ raise ValueError(
276
+ f"Image size {height}x{width} is too small to be scaled "
277
+ f"with scaled_images_ratios={self.scaled_images_ratios} "
278
+ f"when patch_size={self.config.patch_size}."
279
+ )
280
+
281
+ # STEP 1: create 3-level image
282
+
283
+ scaled_images = []
284
+ for ratio in self.scaled_images_ratios:
285
+ scaled_images.append(
286
+ F.interpolate(
287
+ pixel_values,
288
+ scale_factor=ratio,
289
+ mode="bilinear",
290
+ align_corners=False,
291
+ )
292
+ )
293
+
294
+ # STEP 2: create patches
295
+
296
+ for i in range(self.n_scaled_images):
297
+ scaled_images[i] = split_to_patches(
298
+ scaled_images[i],
299
+ patch_size=self.config.patch_size,
300
+ overlap_ratio=self.scaled_images_overlap_ratios[i],
301
+ )
302
+ n_patches_per_scaled_image = [len(i) for i in scaled_images]
303
+ patches = torch.cat(scaled_images[::-1], dim=0) # -1 as patch encoder expects high res patches first
304
+
305
+ # STEP 3: apply patch encoder
306
+
307
+ encodings = self.model(
308
+ # each patch is processed as a separate batch
309
+ patches,
310
+ head_mask=head_mask,
311
+ # required for intermediate features
312
+ output_hidden_states=self.n_intermediate_hooks > 0,
313
+ )
314
+
315
+ scaled_images_last_hidden_state = torch.split_with_sizes(encodings[0], n_patches_per_scaled_image[::-1])
316
+ # -1 (reverse list) as patch encoder returns high res patches first, we need low res first
317
+ scaled_images_last_hidden_state = scaled_images_last_hidden_state[::-1]
318
+
319
+ # calculate base height and width
320
+ # base height and width are the dimensions of the lowest resolution features
321
+ exponent_value = torch_int(math.log2(width / self.out_size))
322
+ base_height = height // 2**exponent_value
323
+ base_width = width // 2**exponent_value
324
+
325
+ # STEP 4: get patch features (high_res, med_res, low_res) - (3-5) in diagram
326
+
327
+ scaled_images_features = []
328
+ for i in range(self.n_scaled_images):
329
+ hidden_state = scaled_images_last_hidden_state[i]
330
+ batch_size = batch_size
331
+ padding = torch_int(self.merge_padding_value * (1 / self.scaled_images_ratios[i]))
332
+ output_height = base_height * 2**i
333
+ output_width = base_width * 2**i
334
+ features = reconstruct_feature_maps(
335
+ hidden_state,
336
+ batch_size=batch_size,
337
+ padding=padding,
338
+ output_size=(output_height, output_width),
339
+ )
340
+ scaled_images_features.append(features)
341
+
342
+ # STEP 5: get intermediate features - (1-2) in diagram
343
+
344
+ intermediate_features = []
345
+ for i in range(self.n_intermediate_hooks):
346
+ # +1 to correct index position as hidden_states contain embedding output as well
347
+ hidden_state = encodings[2][self.intermediate_hook_ids[i] + 1]
348
+ padding = torch_int(self.merge_padding_value * (1 / self.scaled_images_ratios[-1]))
349
+ output_height = base_height * 2 ** (self.n_scaled_images - 1)
350
+ output_width = base_width * 2 ** (self.n_scaled_images - 1)
351
+ features = reconstruct_feature_maps(
352
+ hidden_state,
353
+ batch_size=batch_size,
354
+ padding=padding,
355
+ output_size=(output_height, output_width),
356
+ )
357
+ intermediate_features.append(features)
358
+
359
+ # STEP 7: combine all features
360
+ features = [*scaled_images_features, *intermediate_features]
361
+
362
+ return features
363
+
364
+
365
+ class DepthProImageEncoder(nn.Module):
366
+ def __init__(self, config: DepthProConfig):
367
+ super().__init__()
368
+ self.config = config
369
+ self.out_size = config.image_model_config.image_size // config.image_model_config.patch_size
370
+
371
+ self.model = AutoModel.from_config(config.image_model_config)
372
+
373
+ def forward(
374
+ self,
375
+ pixel_values: torch.Tensor,
376
+ head_mask: Optional[torch.Tensor] = None,
377
+ output_attentions: bool = False,
378
+ output_hidden_states: bool = False,
379
+ return_dict: bool = True,
380
+ ) -> Union[tuple, DepthProOutput]:
381
+ batch_size, num_channels, height, width = pixel_values.shape
382
+
383
+ # scale the image for image_encoder
384
+ size = self.config.image_model_config.image_size
385
+ pixel_values = F.interpolate(
386
+ pixel_values,
387
+ size=(size, size),
388
+ mode="bilinear",
389
+ align_corners=False,
390
+ )
391
+ encodings = self.model(
392
+ pixel_values=pixel_values,
393
+ head_mask=head_mask,
394
+ output_attentions=output_attentions,
395
+ output_hidden_states=output_hidden_states,
396
+ )
397
+
398
+ # calculate base height and width
399
+ # base height and width are the dimensions of the lowest resolution features
400
+ exponent_value = torch_int(math.log2(width / self.out_size))
401
+ base_height = height // 2**exponent_value
402
+ base_width = width // 2**exponent_value
403
+
404
+ features = reconstruct_feature_maps(
405
+ encodings[0],
406
+ batch_size=batch_size,
407
+ padding=0,
408
+ output_size=(base_height, base_width),
409
+ )
410
+
411
+ if not return_dict:
412
+ return (encodings[0], features) + encodings[2:] # ignore last_hidden_state and poooler output
413
+
414
+ return DepthProOutput(
415
+ last_hidden_state=encodings.last_hidden_state,
416
+ features=features,
417
+ hidden_states=encodings.hidden_states,
418
+ attentions=encodings.attentions,
419
+ )
420
+
421
+
422
+ class DepthProEncoder(nn.Module):
423
+ def __init__(self, config: DepthProConfig):
424
+ super().__init__()
425
+ self.config = config
426
+ self.intermediate_hook_ids = config.intermediate_hook_ids
427
+ self.intermediate_feature_dims = config.intermediate_feature_dims
428
+ self.scaled_images_ratios = config.scaled_images_ratios
429
+ self.scaled_images_overlap_ratios = config.scaled_images_overlap_ratios
430
+ self.scaled_images_feature_dims = config.scaled_images_feature_dims
431
+ self.merge_padding_value = config.merge_padding_value
432
+
433
+ self.n_scaled_images = len(self.scaled_images_ratios)
434
+ self.n_intermediate_hooks = len(self.intermediate_hook_ids)
435
+
436
+ self.patch_encoder = DepthProPatchEncoder(config)
437
+ self.image_encoder = DepthProImageEncoder(config)
438
+
439
+ def forward(
440
+ self,
441
+ pixel_values: torch.Tensor,
442
+ head_mask: Optional[torch.Tensor] = None,
443
+ output_attentions: bool = False,
444
+ output_hidden_states: bool = False,
445
+ return_dict: bool = True,
446
+ ) -> Union[tuple, DepthProOutput]:
447
+ batch_size, num_channels, height, width = pixel_values.shape
448
+
449
+ patch_features = self.patch_encoder(
450
+ pixel_values,
451
+ head_mask=head_mask,
452
+ )
453
+ image_encodings = self.image_encoder(
454
+ pixel_values,
455
+ head_mask=head_mask,
456
+ output_attentions=output_attentions,
457
+ output_hidden_states=output_hidden_states,
458
+ return_dict=return_dict,
459
+ )
460
+ image_features = image_encodings[1] # index 1 contains features
461
+
462
+ features = [image_features, *patch_features]
463
+
464
+ if not return_dict:
465
+ return (image_encodings[0], features) + image_encodings[2:]
466
+
467
+ return DepthProOutput(
468
+ last_hidden_state=image_encodings.last_hidden_state,
469
+ features=features,
470
+ hidden_states=image_encodings.hidden_states,
471
+ attentions=image_encodings.attentions,
472
+ )
473
+
474
+
475
+ class DepthProFeatureUpsampleBlock(nn.Module):
476
+ def __init__(
477
+ self,
478
+ config: DepthProConfig,
479
+ input_dims: int,
480
+ intermediate_dims: int,
481
+ output_dims: int,
482
+ n_upsample_layers: int,
483
+ use_proj: bool = True,
484
+ bias: bool = False,
485
+ ):
486
+ super().__init__()
487
+ self.config = config
488
+ self.layers = nn.ModuleList()
489
+
490
+ # create first projection layer
491
+ if use_proj:
492
+ proj = nn.Conv2d(
493
+ in_channels=input_dims,
494
+ out_channels=intermediate_dims,
495
+ kernel_size=1,
496
+ stride=1,
497
+ padding=0,
498
+ bias=bias,
499
+ )
500
+ self.layers.append(proj)
501
+
502
+ # create following upsample layers
503
+ for i in range(n_upsample_layers):
504
+ in_channels = intermediate_dims if i == 0 else output_dims
505
+ layer = nn.ConvTranspose2d(
506
+ in_channels=in_channels,
507
+ out_channels=output_dims,
508
+ kernel_size=2,
509
+ stride=2,
510
+ padding=0,
511
+ bias=bias,
512
+ )
513
+ self.layers.append(layer)
514
+
515
+ def forward(self, features: torch.Tensor) -> torch.Tensor:
516
+ for layer in self.layers:
517
+ features = layer(features)
518
+ return features
519
+
520
+
521
+ class DepthProFeatureUpsample(nn.Module):
522
+ def __init__(self, config: DepthProConfig):
523
+ super().__init__()
524
+ self.config = config
525
+ self.n_scaled_images = len(self.config.scaled_images_ratios)
526
+ self.n_intermediate_hooks = len(self.config.intermediate_hook_ids)
527
+
528
+ # for image_features
529
+ self.image_block = DepthProFeatureUpsampleBlock(
530
+ config=config,
531
+ input_dims=config.image_model_config.hidden_size,
532
+ intermediate_dims=config.image_model_config.hidden_size,
533
+ output_dims=config.scaled_images_feature_dims[0],
534
+ n_upsample_layers=1,
535
+ use_proj=False,
536
+ bias=True,
537
+ )
538
+
539
+ # for scaled_images_features
540
+ self.scaled_images = nn.ModuleList()
541
+ for i, feature_dims in enumerate(config.scaled_images_feature_dims):
542
+ block = DepthProFeatureUpsampleBlock(
543
+ config=config,
544
+ input_dims=config.patch_model_config.hidden_size,
545
+ intermediate_dims=feature_dims,
546
+ output_dims=feature_dims,
547
+ n_upsample_layers=1,
548
+ )
549
+ self.scaled_images.append(block)
550
+
551
+ # for intermediate_features
552
+ self.intermediate = nn.ModuleList()
553
+ for i, feature_dims in enumerate(config.intermediate_feature_dims):
554
+ intermediate_dims = config.fusion_hidden_size if i == 0 else feature_dims
555
+ block = DepthProFeatureUpsampleBlock(
556
+ config=config,
557
+ input_dims=config.patch_model_config.hidden_size,
558
+ intermediate_dims=intermediate_dims,
559
+ output_dims=feature_dims,
560
+ n_upsample_layers=2 + i,
561
+ )
562
+ self.intermediate.append(block)
563
+
564
+ def forward(self, features: List[torch.Tensor]) -> List[torch.Tensor]:
565
+ features[0] = self.image_block(features[0])
566
+
567
+ for i in range(self.n_scaled_images):
568
+ features[i + 1] = self.scaled_images[i](features[i + 1])
569
+
570
+ for i in range(self.n_intermediate_hooks):
571
+ features[self.n_scaled_images + i + 1] = self.intermediate[i](features[self.n_scaled_images + i + 1])
572
+
573
+ return features
574
+
575
+
576
+ class DepthProFeatureProjection(nn.Module):
577
+ def __init__(self, config: DepthProConfig):
578
+ super().__init__()
579
+ self.config = config
580
+
581
+ combined_feature_dims = config.scaled_images_feature_dims + config.intermediate_feature_dims
582
+ self.projections = nn.ModuleList()
583
+ for i, in_channels in enumerate(combined_feature_dims):
584
+ if i == len(combined_feature_dims) - 1 and in_channels == config.fusion_hidden_size:
585
+ # projection for last layer can be ignored if input and output channels already match
586
+ self.projections.append(nn.Identity())
587
+ else:
588
+ self.projections.append(
589
+ nn.Conv2d(
590
+ in_channels=in_channels,
591
+ out_channels=config.fusion_hidden_size,
592
+ kernel_size=3,
593
+ stride=1,
594
+ padding=1,
595
+ bias=False,
596
+ )
597
+ )
598
+
599
+ def forward(self, features: List[torch.Tensor]) -> List[torch.Tensor]:
600
+ projected_features = []
601
+ for i, projection in enumerate(self.projections):
602
+ upsampled_feature = projection(features[i])
603
+ projected_features.append(upsampled_feature)
604
+ return projected_features
605
+
606
+
607
+ class DepthProNeck(nn.Module):
608
+ def __init__(self, config: DepthProConfig):
609
+ super().__init__()
610
+ self.config = config
611
+
612
+ self.feature_upsample = DepthProFeatureUpsample(config)
613
+ self.fuse_image_with_low_res = nn.Conv2d(
614
+ in_channels=config.scaled_images_feature_dims[0] * 2,
615
+ out_channels=config.scaled_images_feature_dims[0],
616
+ kernel_size=1,
617
+ stride=1,
618
+ padding=0,
619
+ bias=True,
620
+ )
621
+ self.feature_projection = DepthProFeatureProjection(config)
622
+
623
+ def forward(self, features: List[torch.Tensor]) -> List[torch.Tensor]:
624
+ features = self.feature_upsample(features)
625
+ # global features = low res features + image features
626
+ global_features = torch.cat((features[1], features[0]), dim=1)
627
+ global_features = self.fuse_image_with_low_res(global_features)
628
+ features = [global_features, *features[2:]]
629
+ features = self.feature_projection(features)
630
+ return features
631
+
632
+
633
+ # General docstring
634
+ _CONFIG_FOR_DOC = "DepthProConfig"
635
+
636
+
637
+ DEPTH_PRO_START_DOCSTRING = r"""
638
+ This model is a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass. Use it
639
+ as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage and
640
+ behavior.
641
+
642
+ Parameters:
643
+ config ([`DepthProConfig`]): Model configuration class with all the parameters of the model.
644
+ Initializing with a config file does not load the weights associated with the model, only the
645
+ configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights.
646
+ """
647
+
648
+ DEPTH_PRO_INPUTS_DOCSTRING = r"""
649
+ Args:
650
+ pixel_values (`torch.FloatTensor` of shape `(batch_size, num_channels, height, width)`):
651
+ Pixel values. Pixel values can be obtained using [`AutoImageProcessor`]. See [`DPTImageProcessor.__call__`]
652
+ for details.
653
+
654
+ head_mask (`torch.FloatTensor` of shape `(num_heads,)` or `(num_layers, num_heads)`, *optional*):
655
+ Mask to nullify selected heads of the self-attention modules. Mask values selected in `[0, 1]`:
656
+
657
+ - 1 indicates the head is **not masked**,
658
+ - 0 indicates the head is **masked**.
659
+
660
+ output_attentions (`bool`, *optional*):
661
+ Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned
662
+ tensors for more detail.
663
+ output_hidden_states (`bool`, *optional*):
664
+ Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
665
+ more detail.
666
+ return_dict (`bool`, *optional*):
667
+ Whether or not to return a [`~file_utils.ModelOutput`] instead of a plain tuple.
668
+ """
669
+
670
+ DEPTH_PRO_FOR_DEPTH_ESTIMATION_START_DOCSTRING = r"""
671
+ This model is a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass. Use it
672
+ as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage and
673
+ behavior.
674
+
675
+ Parameters:
676
+ config ([`DepthProConfig`]): Model configuration class with all the parameters of the model.
677
+ Initializing with a config file does not load the weights associated with the model, only the
678
+ configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights.
679
+ use_fov_model (`bool`, *optional*, defaults to `True`):
680
+ Whether to use `DepthProFovModel` to generate the field of view.
681
+ """
682
+
683
+
684
+ class DepthProPreTrainedModel(PreTrainedModel):
685
+ """
686
+ An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained
687
+ models.
688
+ """
689
+
690
+ config_class = DepthProConfig
691
+ base_model_prefix = "depth_pro"
692
+ main_input_name = "pixel_values"
693
+ supports_gradient_checkpointing = True
694
+ _supports_sdpa = True
695
+ _no_split_modules = ["DepthProPreActResidualLayer"]
696
+ _keys_to_ignore_on_load_unexpected = ["fov_model.*"]
697
+
698
+ def _init_weights(self, module):
699
+ """Initialize the weights"""
700
+ if isinstance(module, nn.Linear):
701
+ # Slightly different from the TF version which uses truncated_normal for initialization
702
+ # cf https://github.com/pytorch/pytorch/pull/5617
703
+ module.weight.data.normal_(mean=0.0, std=self.config.initializer_range)
704
+ if module.bias is not None:
705
+ module.bias.data.zero_()
706
+ elif isinstance(module, nn.LayerNorm):
707
+ module.bias.data.zero_()
708
+ module.weight.data.fill_(1.0)
709
+ elif isinstance(module, (nn.Conv2d, nn.ConvTranspose2d)):
710
+ nn.init.kaiming_normal_(module.weight, mode="fan_out", nonlinearity="relu")
711
+ if module.bias is not None:
712
+ module.bias.data.zero_()
713
+
714
+
715
+ @add_start_docstrings(
716
+ "The bare DepthPro Model transformer outputting raw hidden-states without any specific head on top.",
717
+ DEPTH_PRO_START_DOCSTRING,
718
+ )
719
+ class DepthProModel(DepthProPreTrainedModel):
720
+ def __init__(self, config):
721
+ super().__init__(config)
722
+ self.config = config
723
+ self.encoder = DepthProEncoder(config)
724
+ self.neck = DepthProNeck(config)
725
+ # Initialize weights and apply final processing
726
+ self.post_init()
727
+
728
+ def get_input_embeddings(self):
729
+ return self.encoder.image_encoder.model.get_input_embeddings()
730
+
731
+ @add_start_docstrings_to_model_forward(DEPTH_PRO_INPUTS_DOCSTRING)
732
+ @replace_return_docstrings(output_type=BaseModelOutput, config_class=_CONFIG_FOR_DOC)
733
+ def forward(
734
+ self,
735
+ pixel_values: torch.FloatTensor,
736
+ head_mask: Optional[torch.FloatTensor] = None,
737
+ output_attentions: Optional[bool] = None,
738
+ output_hidden_states: Optional[bool] = None,
739
+ return_dict: Optional[bool] = None,
740
+ ) -> Union[Tuple, DepthProOutput]:
741
+ r"""
742
+ Returns:
743
+
744
+ Examples:
745
+
746
+ ```python
747
+ >>> import torch
748
+ >>> from PIL import Image
749
+ >>> import requests
750
+ >>> from transformers import AutoProcessor, DepthProModel
751
+
752
+ >>> url = "https://www.ilankelman.org/stopsigns/australia.jpg"
753
+ >>> image = Image.open(requests.get(url, stream=True).raw)
754
+
755
+ >>> checkpoint = "apple/DepthPro-hf"
756
+ >>> processor = AutoProcessor.from_pretrained(checkpoint)
757
+ >>> model = DepthProModel.from_pretrained(checkpoint)
758
+
759
+ >>> # prepare image for the model
760
+ >>> inputs = processor(images=image, return_tensors="pt")
761
+
762
+ >>> with torch.no_grad():
763
+ ... output = model(**inputs)
764
+
765
+ >>> output.last_hidden_state.shape
766
+ torch.Size([1, 35, 577, 1024])
767
+ ```"""
768
+ output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
769
+ output_hidden_states = (
770
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
771
+ )
772
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
773
+
774
+ encodings = self.encoder(
775
+ pixel_values,
776
+ head_mask=head_mask,
777
+ output_attentions=output_attentions,
778
+ output_hidden_states=output_hidden_states,
779
+ return_dict=return_dict,
780
+ )
781
+ features = encodings[1] # index 1 contains features
782
+ features = self.neck(features)
783
+
784
+ if not return_dict:
785
+ return (encodings[0], features) + encodings[2:]
786
+
787
+ return DepthProOutput(
788
+ last_hidden_state=encodings.last_hidden_state,
789
+ features=features,
790
+ hidden_states=encodings.hidden_states,
791
+ attentions=encodings.attentions,
792
+ )
793
+
794
+
795
+ # Copied from transformers.models.dpt.modeling_dpt.DPTPreActResidualLayer DPT->DepthPro
796
+ class DepthProPreActResidualLayer(nn.Module):
797
+ """
798
+ ResidualConvUnit, pre-activate residual unit.
799
+
800
+ Args:
801
+ config (`[DepthProConfig]`):
802
+ Model configuration class defining the model architecture.
803
+ """
804
+
805
+ def __init__(self, config):
806
+ super().__init__()
807
+
808
+ self.use_batch_norm = config.use_batch_norm_in_fusion_residual
809
+ use_bias_in_fusion_residual = (
810
+ config.use_bias_in_fusion_residual
811
+ if config.use_bias_in_fusion_residual is not None
812
+ else not self.use_batch_norm
813
+ )
814
+
815
+ self.activation1 = nn.ReLU()
816
+ self.convolution1 = nn.Conv2d(
817
+ config.fusion_hidden_size,
818
+ config.fusion_hidden_size,
819
+ kernel_size=3,
820
+ stride=1,
821
+ padding=1,
822
+ bias=use_bias_in_fusion_residual,
823
+ )
824
+
825
+ self.activation2 = nn.ReLU()
826
+ self.convolution2 = nn.Conv2d(
827
+ config.fusion_hidden_size,
828
+ config.fusion_hidden_size,
829
+ kernel_size=3,
830
+ stride=1,
831
+ padding=1,
832
+ bias=use_bias_in_fusion_residual,
833
+ )
834
+
835
+ if self.use_batch_norm:
836
+ self.batch_norm1 = nn.BatchNorm2d(config.fusion_hidden_size)
837
+ self.batch_norm2 = nn.BatchNorm2d(config.fusion_hidden_size)
838
+
839
+ def forward(self, hidden_state: torch.Tensor) -> torch.Tensor:
840
+ residual = hidden_state
841
+ hidden_state = self.activation1(hidden_state)
842
+
843
+ hidden_state = self.convolution1(hidden_state)
844
+
845
+ if self.use_batch_norm:
846
+ hidden_state = self.batch_norm1(hidden_state)
847
+
848
+ hidden_state = self.activation2(hidden_state)
849
+ hidden_state = self.convolution2(hidden_state)
850
+
851
+ if self.use_batch_norm:
852
+ hidden_state = self.batch_norm2(hidden_state)
853
+
854
+ return hidden_state + residual
855
+
856
+
857
+ # Modified from transformers.models.dpt.modeling_dpt.DPTFeatureFusionLayer
858
+ # except it uses deconv and skip_add and needs no interpolation
859
+ class DepthProFeatureFusionLayer(nn.Module):
860
+ def __init__(self, config: DepthProConfig, use_deconv: bool = True):
861
+ super().__init__()
862
+ self.config = config
863
+ self.use_deconv = use_deconv
864
+
865
+ self.residual_layer1 = DepthProPreActResidualLayer(config)
866
+ self.residual_layer2 = DepthProPreActResidualLayer(config)
867
+
868
+ if self.use_deconv:
869
+ self.deconv = nn.ConvTranspose2d(
870
+ in_channels=config.fusion_hidden_size,
871
+ out_channels=config.fusion_hidden_size,
872
+ kernel_size=2,
873
+ stride=2,
874
+ padding=0,
875
+ bias=False,
876
+ )
877
+
878
+ self.projection = nn.Conv2d(config.fusion_hidden_size, config.fusion_hidden_size, kernel_size=1, bias=True)
879
+
880
+ def forward(self, hidden_state: torch.Tensor, residual: Optional[torch.Tensor] = None) -> torch.Tensor:
881
+ if residual is not None:
882
+ residual = self.residual_layer1(residual)
883
+ hidden_state = hidden_state + residual
884
+
885
+ hidden_state = self.residual_layer2(hidden_state)
886
+ if self.use_deconv:
887
+ hidden_state = self.deconv(hidden_state)
888
+ hidden_state = self.projection(hidden_state)
889
+
890
+ return hidden_state
891
+
892
+
893
+ # Modified from transformers.models.dpt.modeling_dpt.DPTFeatureFusionStage with DPT->DepthPro
894
+ # with deconv and reversed layers
895
+ class DepthProFeatureFusionStage(nn.Module):
896
+ def __init__(self, config):
897
+ super().__init__()
898
+ self.config = config
899
+
900
+ self.num_layers = len(config.intermediate_hook_ids) + len(config.scaled_images_ratios)
901
+ self.intermediate = nn.ModuleList()
902
+ for _ in range(self.num_layers - 1):
903
+ self.intermediate.append(DepthProFeatureFusionLayer(config))
904
+
905
+ # final layer doesnot require deconvolution
906
+ self.final = DepthProFeatureFusionLayer(config, use_deconv=False)
907
+
908
+ def forward(self, hidden_states: List[torch.Tensor]) -> List[torch.Tensor]:
909
+ if self.num_layers != len(hidden_states):
910
+ raise ValueError(
911
+ f"num_layers={self.num_layers} in DepthProFeatureFusionStage"
912
+ f"doesnot match len(hidden_states)={len(hidden_states)}"
913
+ )
914
+
915
+ fused_hidden_states = []
916
+ fused_hidden_state = None
917
+ for hidden_state, layer in zip(hidden_states[:-1], self.intermediate):
918
+ if fused_hidden_state is None:
919
+ # first layer only uses the last hidden_state
920
+ fused_hidden_state = layer(hidden_state)
921
+ else:
922
+ fused_hidden_state = layer(fused_hidden_state, hidden_state)
923
+ fused_hidden_states.append(fused_hidden_state)
924
+
925
+ hidden_state = hidden_states[-1]
926
+ fused_hidden_state = self.final(fused_hidden_state, hidden_state)
927
+ fused_hidden_states.append(fused_hidden_state)
928
+
929
+ return fused_hidden_states
930
+
931
+
932
+ class DepthProFovEncoder(nn.Module):
933
+ def __init__(self, config: DepthProConfig):
934
+ super().__init__()
935
+ self.config = config
936
+ self.out_size = config.image_model_config.image_size // config.image_model_config.patch_size
937
+
938
+ self.model = AutoModel.from_config(config.fov_model_config)
939
+ self.neck = nn.Linear(config.fov_model_config.hidden_size, config.fusion_hidden_size // 2)
940
+
941
+ def forward(
942
+ self,
943
+ pixel_values: torch.Tensor,
944
+ head_mask: Optional[torch.Tensor] = None,
945
+ ) -> torch.Tensor:
946
+ batch_size, num_channels, height, width = pixel_values.shape
947
+
948
+ # scale the image for fov_encoder
949
+ size = self.config.fov_model_config.image_size
950
+ pixel_values = F.interpolate(
951
+ pixel_values,
952
+ size=(size, size),
953
+ mode="bilinear",
954
+ align_corners=False,
955
+ )
956
+ encodings = self.model(
957
+ pixel_values=pixel_values,
958
+ head_mask=head_mask,
959
+ )
960
+ hidden_state = encodings[0]
961
+ hidden_state = self.neck(hidden_state)
962
+
963
+ # calculate base height and width
964
+ # base height and width are the dimensions of the lowest resolution features
965
+ exponent_value = torch_int(math.log2(width / self.out_size))
966
+ base_height = height // 2**exponent_value
967
+ base_width = width // 2**exponent_value
968
+
969
+ features = reconstruct_feature_maps(
970
+ hidden_state,
971
+ batch_size=batch_size,
972
+ padding=0,
973
+ output_size=(base_height, base_width),
974
+ )
975
+
976
+ return features
977
+
978
+
979
+ class DepthProFovHead(nn.Module):
980
+ def __init__(self, config: DepthProConfig):
981
+ super().__init__()
982
+ self.config = config
983
+ self.fusion_hidden_size = config.fusion_hidden_size
984
+ self.out_size = config.image_model_config.image_size // config.image_model_config.patch_size
985
+
986
+ # create initial head layers
987
+ self.layers = nn.ModuleList()
988
+ for i in range(config.num_fov_head_layers):
989
+ self.layers.append(
990
+ nn.Conv2d(
991
+ math.ceil(self.fusion_hidden_size / 2 ** (i + 1)),
992
+ math.ceil(self.fusion_hidden_size / 2 ** (i + 2)),
993
+ kernel_size=3,
994
+ stride=2,
995
+ padding=1,
996
+ )
997
+ )
998
+ self.layers.append(nn.ReLU(True))
999
+ # calculate expected shapes to finally generate a scalar output from final head layer
1000
+ final_in_channels = math.ceil(self.fusion_hidden_size / 2 ** (config.num_fov_head_layers + 1))
1001
+ final_kernel_size = torch_int((self.out_size - 1) / 2**config.num_fov_head_layers + 1)
1002
+ self.layers.append(
1003
+ nn.Conv2d(
1004
+ in_channels=final_in_channels, out_channels=1, kernel_size=final_kernel_size, stride=1, padding=0
1005
+ )
1006
+ )
1007
+
1008
+ def forward(self, features: torch.Tensor) -> torch.Tensor:
1009
+ features = F.interpolate(
1010
+ features,
1011
+ size=(self.out_size, self.out_size),
1012
+ mode="bilinear",
1013
+ align_corners=False,
1014
+ )
1015
+ for layer in self.layers:
1016
+ features = layer(features)
1017
+ return features
1018
+
1019
+
1020
+ class DepthProFovModel(nn.Module):
1021
+ def __init__(self, config: DepthProConfig):
1022
+ super().__init__()
1023
+ self.config = config
1024
+ self.fusion_hidden_size = config.fusion_hidden_size
1025
+
1026
+ self.fov_encoder = DepthProFovEncoder(config)
1027
+ self.conv = nn.Conv2d(
1028
+ self.fusion_hidden_size, self.fusion_hidden_size // 2, kernel_size=3, stride=2, padding=1
1029
+ )
1030
+ self.activation = nn.ReLU(inplace=True)
1031
+ self.head = DepthProFovHead(config)
1032
+
1033
+ def forward(
1034
+ self,
1035
+ pixel_values: torch.Tensor,
1036
+ global_features: torch.Tensor,
1037
+ head_mask: Optional[torch.Tensor] = None,
1038
+ ) -> torch.Tensor:
1039
+ fov_features = self.fov_encoder(pixel_values, head_mask)
1040
+
1041
+ global_features = self.conv(global_features)
1042
+ global_features = self.activation(global_features)
1043
+
1044
+ fov_features = fov_features + global_features
1045
+ fov_output = self.head(fov_features)
1046
+ fov_output = fov_output.flatten()
1047
+
1048
+ return fov_output
1049
+
1050
+
1051
+ class DepthProDepthEstimationHead(nn.Module):
1052
+ """
1053
+ The DepthProDepthEstimationHead module serves as the output head for depth estimation tasks.
1054
+ This module comprises a sequence of convolutional and transposed convolutional layers
1055
+ that process the feature map from the fusion to produce a single-channel depth map.
1056
+ Key operations include dimensionality reduction and upsampling to match the input resolution.
1057
+ """
1058
+
1059
+ def __init__(self, config):
1060
+ super().__init__()
1061
+ self.config = config
1062
+
1063
+ features = config.fusion_hidden_size
1064
+ self.layers = nn.ModuleList(
1065
+ [
1066
+ nn.Conv2d(features, features // 2, kernel_size=3, stride=1, padding=1),
1067
+ nn.ConvTranspose2d(
1068
+ in_channels=features // 2,
1069
+ out_channels=features // 2,
1070
+ kernel_size=2,
1071
+ stride=2,
1072
+ padding=0,
1073
+ bias=True,
1074
+ ),
1075
+ nn.Conv2d(features // 2, 32, kernel_size=3, stride=1, padding=1),
1076
+ nn.ReLU(True),
1077
+ nn.Conv2d(32, 1, kernel_size=1, stride=1, padding=0),
1078
+ nn.ReLU(),
1079
+ ]
1080
+ )
1081
+
1082
+ def forward(self, hidden_states: torch.Tensor) -> torch.Tensor:
1083
+ for layer in self.layers:
1084
+ hidden_states = layer(hidden_states)
1085
+
1086
+ predicted_depth = hidden_states.squeeze(dim=1)
1087
+ return predicted_depth
1088
+
1089
+
1090
+ @add_start_docstrings(
1091
+ """
1092
+ DepthPro Model with a depth estimation head on top (consisting of 3 convolutional layers).
1093
+ """,
1094
+ DEPTH_PRO_FOR_DEPTH_ESTIMATION_START_DOCSTRING,
1095
+ )
1096
+ class DepthProForDepthEstimation(DepthProPreTrainedModel):
1097
+ def __init__(self, config, use_fov_model=None):
1098
+ super().__init__(config)
1099
+ self.config = config
1100
+ self.use_fov_model = use_fov_model if use_fov_model is not None else self.config.use_fov_model
1101
+
1102
+ # dinov2 (vit) like encoders
1103
+ self.depth_pro = DepthProModel(config)
1104
+
1105
+ # dpt (vit) like fusion stage
1106
+ self.fusion_stage = DepthProFeatureFusionStage(config)
1107
+
1108
+ # depth estimation head
1109
+ self.head = DepthProDepthEstimationHead(config)
1110
+
1111
+ # dinov2 (vit) like encoder
1112
+ self.fov_model = DepthProFovModel(config) if self.use_fov_model else None
1113
+
1114
+ # Initialize weights and apply final processing
1115
+ self.post_init()
1116
+
1117
+ @add_start_docstrings_to_model_forward(DEPTH_PRO_INPUTS_DOCSTRING)
1118
+ @replace_return_docstrings(output_type=DepthProDepthEstimatorOutput, config_class=_CONFIG_FOR_DOC)
1119
+ def forward(
1120
+ self,
1121
+ pixel_values: torch.FloatTensor,
1122
+ head_mask: Optional[torch.FloatTensor] = None,
1123
+ labels: Optional[torch.LongTensor] = None,
1124
+ output_attentions: Optional[bool] = None,
1125
+ output_hidden_states: Optional[bool] = None,
1126
+ return_dict: Optional[bool] = None,
1127
+ ) -> Union[Tuple[torch.Tensor], DepthProDepthEstimatorOutput]:
1128
+ r"""
1129
+ labels (`torch.LongTensor` of shape `(batch_size, height, width)`, *optional*):
1130
+ Ground truth depth estimation maps for computing the loss.
1131
+
1132
+ Returns:
1133
+
1134
+ Examples:
1135
+
1136
+ ```python
1137
+ >>> from transformers import AutoImageProcessor, DepthProForDepthEstimation
1138
+ >>> import torch
1139
+ >>> from PIL import Image
1140
+ >>> import requests
1141
+
1142
+ >>> url = "http://images.cocodataset.org/val2017/000000039769.jpg"
1143
+ >>> image = Image.open(requests.get(url, stream=True).raw)
1144
+
1145
+ >>> checkpoint = "apple/DepthPro-hf"
1146
+ >>> processor = AutoImageProcessor.from_pretrained(checkpoint)
1147
+ >>> model = DepthProForDepthEstimation.from_pretrained(checkpoint)
1148
+
1149
+ >>> device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
1150
+ >>> model.to(device)
1151
+
1152
+ >>> # prepare image for the model
1153
+ >>> inputs = processor(images=image, return_tensors="pt").to(device)
1154
+
1155
+ >>> with torch.no_grad():
1156
+ ... outputs = model(**inputs)
1157
+
1158
+ >>> # interpolate to original size
1159
+ >>> post_processed_output = processor.post_process_depth_estimation(
1160
+ ... outputs, target_sizes=[(image.height, image.width)],
1161
+ ... )
1162
+
1163
+ >>> # get the field of view (fov) predictions
1164
+ >>> field_of_view = post_processed_output[0]["field_of_view"]
1165
+ >>> focal_length = post_processed_output[0]["focal_length"]
1166
+
1167
+ >>> # visualize the prediction
1168
+ >>> predicted_depth = post_processed_output[0]["predicted_depth"]
1169
+ >>> depth = predicted_depth * 255 / predicted_depth.max()
1170
+ >>> depth = depth.detach().cpu().numpy()
1171
+ >>> depth = Image.fromarray(depth.astype("uint8"))
1172
+ ```"""
1173
+ loss = None
1174
+ if labels is not None:
1175
+ raise NotImplementedError("Training is not implemented yet")
1176
+
1177
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
1178
+ output_hidden_states = (
1179
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
1180
+ )
1181
+ output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
1182
+
1183
+ depth_pro_outputs = self.depth_pro(
1184
+ pixel_values=pixel_values,
1185
+ head_mask=head_mask,
1186
+ output_attentions=output_attentions,
1187
+ output_hidden_states=output_hidden_states,
1188
+ return_dict=True,
1189
+ )
1190
+ features = depth_pro_outputs.features
1191
+ fused_hidden_states = self.fusion_stage(features)
1192
+ predicted_depth = self.head(fused_hidden_states[-1])
1193
+
1194
+ if self.use_fov_model:
1195
+ # frozen features from encoder are used
1196
+ features_for_fov = features[0].detach()
1197
+ fov = self.fov_model(
1198
+ pixel_values=pixel_values,
1199
+ global_features=features_for_fov,
1200
+ head_mask=head_mask,
1201
+ )
1202
+ else:
1203
+ fov = None
1204
+
1205
+ if not return_dict:
1206
+ outputs = [loss, predicted_depth, fov, depth_pro_outputs.hidden_states, depth_pro_outputs.attentions]
1207
+ return tuple(v for v in outputs if v is not None)
1208
+
1209
+ return DepthProDepthEstimatorOutput(
1210
+ loss=loss,
1211
+ predicted_depth=predicted_depth,
1212
+ field_of_view=fov,
1213
+ hidden_states=depth_pro_outputs.hidden_states,
1214
+ attentions=depth_pro_outputs.attentions,
1215
+ )
1216
+
1217
+
1218
+ __all__ = ["DepthProPreTrainedModel", "DepthProModel", "DepthProForDepthEstimation"]
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/detr/__init__.py ADDED
@@ -0,0 +1,31 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # Copyright 2020 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_detr import *
23
+ from .feature_extraction_detr import *
24
+ from .image_processing_detr import *
25
+ from .image_processing_detr_fast import *
26
+ from .modeling_detr 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-e0f68dd4420c/environment/source/src/transformers/models/detr/configuration_detr.py ADDED
@@ -0,0 +1,289 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2021 Facebook AI 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
+ """DETR 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 verify_backbone_config_arguments
26
+ from ..auto import CONFIG_MAPPING
27
+
28
+
29
+ logger = logging.get_logger(__name__)
30
+
31
+
32
+ class DetrConfig(PretrainedConfig):
33
+ r"""
34
+ This is the configuration class to store the configuration of a [`DetrModel`]. It is used to instantiate a DETR
35
+ model according to the specified arguments, defining the model architecture. Instantiating a configuration with the
36
+ defaults will yield a similar configuration to that of the DETR
37
+ [facebook/detr-resnet-50](https://huggingface.co/facebook/detr-resnet-50) architecture.
38
+
39
+ Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
40
+ documentation from [`PretrainedConfig`] for more information.
41
+
42
+ Args:
43
+ use_timm_backbone (`bool`, *optional*, defaults to `True`):
44
+ Whether or not to use the `timm` library for the backbone. If set to `False`, will use the [`AutoBackbone`]
45
+ API.
46
+ backbone_config (`PretrainedConfig` or `dict`, *optional*):
47
+ The configuration of the backbone model. Only used in case `use_timm_backbone` is set to `False` in which
48
+ case it will default to `ResNetConfig()`.
49
+ num_channels (`int`, *optional*, defaults to 3):
50
+ The number of input channels.
51
+ num_queries (`int`, *optional*, defaults to 100):
52
+ Number of object queries, i.e. detection slots. This is the maximal number of objects [`DetrModel`] can
53
+ detect in a single image. For COCO, we recommend 100 queries.
54
+ d_model (`int`, *optional*, defaults to 256):
55
+ 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.
56
+ encoder_layers (`int`, *optional*, defaults to 6):
57
+ Number of encoder layers.
58
+ decoder_layers (`int`, *optional*, defaults to 6):
59
+ Number of decoder layers.
60
+ encoder_attention_heads (`int`, *optional*, defaults to 8):
61
+ Number of attention heads for each attention layer in the Transformer encoder.
62
+ decoder_attention_heads (`int`, *optional*, defaults to 8):
63
+ Number of attention heads for each attention layer in the Transformer decoder.
64
+ decoder_ffn_dim (`int`, *optional*, defaults to 2048):
65
+ Dimension of the "intermediate" (often named feed-forward) layer in decoder.
66
+ encoder_ffn_dim (`int`, *optional*, defaults to 2048):
67
+ Dimension of the "intermediate" (often named feed-forward) layer in decoder.
68
+ activation_function (`str` or `function`, *optional*, defaults to `"relu"`):
69
+ The non-linear activation function (function or string) in the encoder and pooler. If string, `"gelu"`,
70
+ `"relu"`, `"silu"` and `"gelu_new"` are supported.
71
+ dropout (`float`, *optional*, defaults to 0.1):
72
+ The dropout probability for all fully connected layers in the embeddings, encoder, and pooler.
73
+ attention_dropout (`float`, *optional*, defaults to 0.0):
74
+ The dropout ratio for the attention probabilities.
75
+ activation_dropout (`float`, *optional*, defaults to 0.0):
76
+ The dropout ratio for activations inside the fully connected layer.
77
+ init_std (`float`, *optional*, defaults to 0.02):
78
+ The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
79
+ init_xavier_std (`float`, *optional*, defaults to 1):
80
+ The scaling factor used for the Xavier initialization gain in the HM Attention map module.
81
+ encoder_layerdrop (`float`, *optional*, defaults to 0.0):
82
+ The LayerDrop probability for the encoder. See the [LayerDrop paper](see https://arxiv.org/abs/1909.11556)
83
+ for more details.
84
+ decoder_layerdrop (`float`, *optional*, defaults to 0.0):
85
+ The LayerDrop probability for the decoder. See the [LayerDrop paper](see https://arxiv.org/abs/1909.11556)
86
+ for more details.
87
+ auxiliary_loss (`bool`, *optional*, defaults to `False`):
88
+ Whether auxiliary decoding losses (loss at each decoder layer) are to be used.
89
+ position_embedding_type (`str`, *optional*, defaults to `"sine"`):
90
+ Type of position embeddings to be used on top of the image features. One of `"sine"` or `"learned"`.
91
+ backbone (`str`, *optional*, defaults to `"resnet50"`):
92
+ Name of backbone to use when `backbone_config` is `None`. If `use_pretrained_backbone` is `True`, this
93
+ will load the corresponding pretrained weights from the timm or transformers library. If `use_pretrained_backbone`
94
+ is `False`, this loads the backbone's config and uses that to initialize the backbone with random weights.
95
+ use_pretrained_backbone (`bool`, *optional*, `True`):
96
+ Whether to use pretrained weights for the backbone.
97
+ backbone_kwargs (`dict`, *optional*):
98
+ Keyword arguments to be passed to AutoBackbone when loading from a checkpoint
99
+ e.g. `{'out_indices': (0, 1, 2, 3)}`. Cannot be specified if `backbone_config` is set.
100
+ dilation (`bool`, *optional*, defaults to `False`):
101
+ Whether to replace stride with dilation in the last convolutional block (DC5). Only supported when
102
+ `use_timm_backbone` = `True`.
103
+ class_cost (`float`, *optional*, defaults to 1):
104
+ Relative weight of the classification error in the Hungarian matching cost.
105
+ bbox_cost (`float`, *optional*, defaults to 5):
106
+ Relative weight of the L1 error of the bounding box coordinates in the Hungarian matching cost.
107
+ giou_cost (`float`, *optional*, defaults to 2):
108
+ Relative weight of the generalized IoU loss of the bounding box in the Hungarian matching cost.
109
+ mask_loss_coefficient (`float`, *optional*, defaults to 1):
110
+ Relative weight of the Focal loss in the panoptic segmentation loss.
111
+ dice_loss_coefficient (`float`, *optional*, defaults to 1):
112
+ Relative weight of the DICE/F-1 loss in the panoptic segmentation loss.
113
+ bbox_loss_coefficient (`float`, *optional*, defaults to 5):
114
+ Relative weight of the L1 bounding box loss in the object detection loss.
115
+ giou_loss_coefficient (`float`, *optional*, defaults to 2):
116
+ Relative weight of the generalized IoU loss in the object detection loss.
117
+ eos_coefficient (`float`, *optional*, defaults to 0.1):
118
+ Relative classification weight of the 'no-object' class in the object detection loss.
119
+
120
+ Examples:
121
+
122
+ ```python
123
+ >>> from transformers import DetrConfig, DetrModel
124
+
125
+ >>> # Initializing a DETR facebook/detr-resnet-50 style configuration
126
+ >>> configuration = DetrConfig()
127
+
128
+ >>> # Initializing a model (with random weights) from the facebook/detr-resnet-50 style configuration
129
+ >>> model = DetrModel(configuration)
130
+
131
+ >>> # Accessing the model configuration
132
+ >>> configuration = model.config
133
+ ```"""
134
+
135
+ model_type = "detr"
136
+ keys_to_ignore_at_inference = ["past_key_values"]
137
+ attribute_map = {
138
+ "hidden_size": "d_model",
139
+ "num_attention_heads": "encoder_attention_heads",
140
+ }
141
+
142
+ def __init__(
143
+ self,
144
+ use_timm_backbone=True,
145
+ backbone_config=None,
146
+ num_channels=3,
147
+ num_queries=100,
148
+ encoder_layers=6,
149
+ encoder_ffn_dim=2048,
150
+ encoder_attention_heads=8,
151
+ decoder_layers=6,
152
+ decoder_ffn_dim=2048,
153
+ decoder_attention_heads=8,
154
+ encoder_layerdrop=0.0,
155
+ decoder_layerdrop=0.0,
156
+ is_encoder_decoder=True,
157
+ activation_function="relu",
158
+ d_model=256,
159
+ dropout=0.1,
160
+ attention_dropout=0.0,
161
+ activation_dropout=0.0,
162
+ init_std=0.02,
163
+ init_xavier_std=1.0,
164
+ auxiliary_loss=False,
165
+ position_embedding_type="sine",
166
+ backbone="resnet50",
167
+ use_pretrained_backbone=True,
168
+ backbone_kwargs=None,
169
+ dilation=False,
170
+ class_cost=1,
171
+ bbox_cost=5,
172
+ giou_cost=2,
173
+ mask_loss_coefficient=1,
174
+ dice_loss_coefficient=1,
175
+ bbox_loss_coefficient=5,
176
+ giou_loss_coefficient=2,
177
+ eos_coefficient=0.1,
178
+ **kwargs,
179
+ ):
180
+ # We default to values which were previously hard-coded in the model. This enables configurability of the config
181
+ # while keeping the default behavior the same.
182
+ if use_timm_backbone and backbone_kwargs is None:
183
+ backbone_kwargs = {}
184
+ if dilation:
185
+ backbone_kwargs["output_stride"] = 16
186
+ backbone_kwargs["out_indices"] = [1, 2, 3, 4]
187
+ backbone_kwargs["in_chans"] = num_channels
188
+ # Backwards compatibility
189
+ elif not use_timm_backbone and backbone in (None, "resnet50"):
190
+ if backbone_config is None:
191
+ logger.info("`backbone_config` is `None`. Initializing the config with the default `ResNet` backbone.")
192
+ backbone_config = CONFIG_MAPPING["resnet"](out_features=["stage4"])
193
+ elif isinstance(backbone_config, dict):
194
+ backbone_model_type = backbone_config.get("model_type")
195
+ config_class = CONFIG_MAPPING[backbone_model_type]
196
+ backbone_config = config_class.from_dict(backbone_config)
197
+ backbone = None
198
+ # set timm attributes to None
199
+ dilation = None
200
+
201
+ verify_backbone_config_arguments(
202
+ use_timm_backbone=use_timm_backbone,
203
+ use_pretrained_backbone=use_pretrained_backbone,
204
+ backbone=backbone,
205
+ backbone_config=backbone_config,
206
+ backbone_kwargs=backbone_kwargs,
207
+ )
208
+
209
+ self.use_timm_backbone = use_timm_backbone
210
+ self.backbone_config = backbone_config
211
+ self.num_channels = num_channels
212
+ self.num_queries = num_queries
213
+ self.d_model = d_model
214
+ self.encoder_ffn_dim = encoder_ffn_dim
215
+ self.encoder_layers = encoder_layers
216
+ self.encoder_attention_heads = encoder_attention_heads
217
+ self.decoder_ffn_dim = decoder_ffn_dim
218
+ self.decoder_layers = decoder_layers
219
+ self.decoder_attention_heads = decoder_attention_heads
220
+ self.dropout = dropout
221
+ self.attention_dropout = attention_dropout
222
+ self.activation_dropout = activation_dropout
223
+ self.activation_function = activation_function
224
+ self.init_std = init_std
225
+ self.init_xavier_std = init_xavier_std
226
+ self.encoder_layerdrop = encoder_layerdrop
227
+ self.decoder_layerdrop = decoder_layerdrop
228
+ self.num_hidden_layers = encoder_layers
229
+ self.auxiliary_loss = auxiliary_loss
230
+ self.position_embedding_type = position_embedding_type
231
+ self.backbone = backbone
232
+ self.use_pretrained_backbone = use_pretrained_backbone
233
+ self.backbone_kwargs = backbone_kwargs
234
+ self.dilation = dilation
235
+ # Hungarian matcher
236
+ self.class_cost = class_cost
237
+ self.bbox_cost = bbox_cost
238
+ self.giou_cost = giou_cost
239
+ # Loss coefficients
240
+ self.mask_loss_coefficient = mask_loss_coefficient
241
+ self.dice_loss_coefficient = dice_loss_coefficient
242
+ self.bbox_loss_coefficient = bbox_loss_coefficient
243
+ self.giou_loss_coefficient = giou_loss_coefficient
244
+ self.eos_coefficient = eos_coefficient
245
+ super().__init__(is_encoder_decoder=is_encoder_decoder, **kwargs)
246
+
247
+ @property
248
+ def num_attention_heads(self) -> int:
249
+ return self.encoder_attention_heads
250
+
251
+ @property
252
+ def hidden_size(self) -> int:
253
+ return self.d_model
254
+
255
+ @classmethod
256
+ def from_backbone_config(cls, backbone_config: PretrainedConfig, **kwargs):
257
+ """Instantiate a [`DetrConfig`] (or a derived class) from a pre-trained backbone model configuration.
258
+
259
+ Args:
260
+ backbone_config ([`PretrainedConfig`]):
261
+ The backbone configuration.
262
+ Returns:
263
+ [`DetrConfig`]: An instance of a configuration object
264
+ """
265
+ return cls(backbone_config=backbone_config, **kwargs)
266
+
267
+
268
+ class DetrOnnxConfig(OnnxConfig):
269
+ torch_onnx_minimum_version = version.parse("1.11")
270
+
271
+ @property
272
+ def inputs(self) -> Mapping[str, Mapping[int, str]]:
273
+ return OrderedDict(
274
+ [
275
+ ("pixel_values", {0: "batch", 1: "num_channels", 2: "height", 3: "width"}),
276
+ ("pixel_mask", {0: "batch"}),
277
+ ]
278
+ )
279
+
280
+ @property
281
+ def atol_for_validation(self) -> float:
282
+ return 1e-5
283
+
284
+ @property
285
+ def default_onnx_opset(self) -> int:
286
+ return 12
287
+
288
+
289
+ __all__ = ["DetrConfig", "DetrOnnxConfig"]
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/detr/convert_detr_original_pytorch_checkpoint_to_pytorch.py ADDED
@@ -0,0 +1,277 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 DETR checkpoints with timm backbone."""
16
+
17
+ import argparse
18
+ import json
19
+ from collections import OrderedDict
20
+ from pathlib import Path
21
+
22
+ import requests
23
+ import torch
24
+ from huggingface_hub import hf_hub_download
25
+ from PIL import Image
26
+
27
+ from transformers import DetrConfig, DetrForObjectDetection, DetrForSegmentation, DetrImageProcessor
28
+ from transformers.utils import logging
29
+
30
+
31
+ logging.set_verbosity_info()
32
+ logger = logging.get_logger(__name__)
33
+
34
+ # here we list all keys to be renamed (original name on the left, our name on the right)
35
+ rename_keys = []
36
+ for i in range(6):
37
+ # encoder layers: output projection, 2 feedforward neural networks and 2 layernorms
38
+ rename_keys.append(
39
+ (f"transformer.encoder.layers.{i}.self_attn.out_proj.weight", f"encoder.layers.{i}.self_attn.out_proj.weight")
40
+ )
41
+ rename_keys.append(
42
+ (f"transformer.encoder.layers.{i}.self_attn.out_proj.bias", f"encoder.layers.{i}.self_attn.out_proj.bias")
43
+ )
44
+ rename_keys.append((f"transformer.encoder.layers.{i}.linear1.weight", f"encoder.layers.{i}.fc1.weight"))
45
+ rename_keys.append((f"transformer.encoder.layers.{i}.linear1.bias", f"encoder.layers.{i}.fc1.bias"))
46
+ rename_keys.append((f"transformer.encoder.layers.{i}.linear2.weight", f"encoder.layers.{i}.fc2.weight"))
47
+ rename_keys.append((f"transformer.encoder.layers.{i}.linear2.bias", f"encoder.layers.{i}.fc2.bias"))
48
+ rename_keys.append(
49
+ (f"transformer.encoder.layers.{i}.norm1.weight", f"encoder.layers.{i}.self_attn_layer_norm.weight")
50
+ )
51
+ rename_keys.append((f"transformer.encoder.layers.{i}.norm1.bias", f"encoder.layers.{i}.self_attn_layer_norm.bias"))
52
+ rename_keys.append((f"transformer.encoder.layers.{i}.norm2.weight", f"encoder.layers.{i}.final_layer_norm.weight"))
53
+ rename_keys.append((f"transformer.encoder.layers.{i}.norm2.bias", f"encoder.layers.{i}.final_layer_norm.bias"))
54
+ # decoder layers: 2 times output projection, 2 feedforward neural networks and 3 layernorms
55
+ rename_keys.append(
56
+ (f"transformer.decoder.layers.{i}.self_attn.out_proj.weight", f"decoder.layers.{i}.self_attn.out_proj.weight")
57
+ )
58
+ rename_keys.append(
59
+ (f"transformer.decoder.layers.{i}.self_attn.out_proj.bias", f"decoder.layers.{i}.self_attn.out_proj.bias")
60
+ )
61
+ rename_keys.append(
62
+ (
63
+ f"transformer.decoder.layers.{i}.multihead_attn.out_proj.weight",
64
+ f"decoder.layers.{i}.encoder_attn.out_proj.weight",
65
+ )
66
+ )
67
+ rename_keys.append(
68
+ (
69
+ f"transformer.decoder.layers.{i}.multihead_attn.out_proj.bias",
70
+ f"decoder.layers.{i}.encoder_attn.out_proj.bias",
71
+ )
72
+ )
73
+ rename_keys.append((f"transformer.decoder.layers.{i}.linear1.weight", f"decoder.layers.{i}.fc1.weight"))
74
+ rename_keys.append((f"transformer.decoder.layers.{i}.linear1.bias", f"decoder.layers.{i}.fc1.bias"))
75
+ rename_keys.append((f"transformer.decoder.layers.{i}.linear2.weight", f"decoder.layers.{i}.fc2.weight"))
76
+ rename_keys.append((f"transformer.decoder.layers.{i}.linear2.bias", f"decoder.layers.{i}.fc2.bias"))
77
+ rename_keys.append(
78
+ (f"transformer.decoder.layers.{i}.norm1.weight", f"decoder.layers.{i}.self_attn_layer_norm.weight")
79
+ )
80
+ rename_keys.append((f"transformer.decoder.layers.{i}.norm1.bias", f"decoder.layers.{i}.self_attn_layer_norm.bias"))
81
+ rename_keys.append(
82
+ (f"transformer.decoder.layers.{i}.norm2.weight", f"decoder.layers.{i}.encoder_attn_layer_norm.weight")
83
+ )
84
+ rename_keys.append(
85
+ (f"transformer.decoder.layers.{i}.norm2.bias", f"decoder.layers.{i}.encoder_attn_layer_norm.bias")
86
+ )
87
+ rename_keys.append((f"transformer.decoder.layers.{i}.norm3.weight", f"decoder.layers.{i}.final_layer_norm.weight"))
88
+ rename_keys.append((f"transformer.decoder.layers.{i}.norm3.bias", f"decoder.layers.{i}.final_layer_norm.bias"))
89
+
90
+ # convolutional projection + query embeddings + layernorm of decoder + class and bounding box heads
91
+ rename_keys.extend(
92
+ [
93
+ ("input_proj.weight", "input_projection.weight"),
94
+ ("input_proj.bias", "input_projection.bias"),
95
+ ("query_embed.weight", "query_position_embeddings.weight"),
96
+ ("transformer.decoder.norm.weight", "decoder.layernorm.weight"),
97
+ ("transformer.decoder.norm.bias", "decoder.layernorm.bias"),
98
+ ("class_embed.weight", "class_labels_classifier.weight"),
99
+ ("class_embed.bias", "class_labels_classifier.bias"),
100
+ ("bbox_embed.layers.0.weight", "bbox_predictor.layers.0.weight"),
101
+ ("bbox_embed.layers.0.bias", "bbox_predictor.layers.0.bias"),
102
+ ("bbox_embed.layers.1.weight", "bbox_predictor.layers.1.weight"),
103
+ ("bbox_embed.layers.1.bias", "bbox_predictor.layers.1.bias"),
104
+ ("bbox_embed.layers.2.weight", "bbox_predictor.layers.2.weight"),
105
+ ("bbox_embed.layers.2.bias", "bbox_predictor.layers.2.bias"),
106
+ ]
107
+ )
108
+
109
+
110
+ def rename_key(state_dict, old, new):
111
+ val = state_dict.pop(old)
112
+ state_dict[new] = val
113
+
114
+
115
+ def rename_backbone_keys(state_dict):
116
+ new_state_dict = OrderedDict()
117
+ for key, value in state_dict.items():
118
+ if "backbone.0.body" in key:
119
+ new_key = key.replace("backbone.0.body", "backbone.conv_encoder.model")
120
+ new_state_dict[new_key] = value
121
+ else:
122
+ new_state_dict[key] = value
123
+
124
+ return new_state_dict
125
+
126
+
127
+ def read_in_q_k_v(state_dict, is_panoptic=False):
128
+ prefix = ""
129
+ if is_panoptic:
130
+ prefix = "detr."
131
+
132
+ # first: transformer encoder
133
+ for i in range(6):
134
+ # read in weights + bias of input projection layer (in PyTorch's MultiHeadAttention, this is a single matrix + bias)
135
+ in_proj_weight = state_dict.pop(f"{prefix}transformer.encoder.layers.{i}.self_attn.in_proj_weight")
136
+ in_proj_bias = state_dict.pop(f"{prefix}transformer.encoder.layers.{i}.self_attn.in_proj_bias")
137
+ # next, add query, keys and values (in that order) to the state dict
138
+ state_dict[f"encoder.layers.{i}.self_attn.q_proj.weight"] = in_proj_weight[:256, :]
139
+ state_dict[f"encoder.layers.{i}.self_attn.q_proj.bias"] = in_proj_bias[:256]
140
+ state_dict[f"encoder.layers.{i}.self_attn.k_proj.weight"] = in_proj_weight[256:512, :]
141
+ state_dict[f"encoder.layers.{i}.self_attn.k_proj.bias"] = in_proj_bias[256:512]
142
+ state_dict[f"encoder.layers.{i}.self_attn.v_proj.weight"] = in_proj_weight[-256:, :]
143
+ state_dict[f"encoder.layers.{i}.self_attn.v_proj.bias"] = in_proj_bias[-256:]
144
+ # next: transformer decoder (which is a bit more complex because it also includes cross-attention)
145
+ for i in range(6):
146
+ # read in weights + bias of input projection layer of self-attention
147
+ in_proj_weight = state_dict.pop(f"{prefix}transformer.decoder.layers.{i}.self_attn.in_proj_weight")
148
+ in_proj_bias = state_dict.pop(f"{prefix}transformer.decoder.layers.{i}.self_attn.in_proj_bias")
149
+ # next, add query, keys and values (in that order) to the state dict
150
+ state_dict[f"decoder.layers.{i}.self_attn.q_proj.weight"] = in_proj_weight[:256, :]
151
+ state_dict[f"decoder.layers.{i}.self_attn.q_proj.bias"] = in_proj_bias[:256]
152
+ state_dict[f"decoder.layers.{i}.self_attn.k_proj.weight"] = in_proj_weight[256:512, :]
153
+ state_dict[f"decoder.layers.{i}.self_attn.k_proj.bias"] = in_proj_bias[256:512]
154
+ state_dict[f"decoder.layers.{i}.self_attn.v_proj.weight"] = in_proj_weight[-256:, :]
155
+ state_dict[f"decoder.layers.{i}.self_attn.v_proj.bias"] = in_proj_bias[-256:]
156
+ # read in weights + bias of input projection layer of cross-attention
157
+ in_proj_weight_cross_attn = state_dict.pop(
158
+ f"{prefix}transformer.decoder.layers.{i}.multihead_attn.in_proj_weight"
159
+ )
160
+ in_proj_bias_cross_attn = state_dict.pop(f"{prefix}transformer.decoder.layers.{i}.multihead_attn.in_proj_bias")
161
+ # next, add query, keys and values (in that order) of cross-attention to the state dict
162
+ state_dict[f"decoder.layers.{i}.encoder_attn.q_proj.weight"] = in_proj_weight_cross_attn[:256, :]
163
+ state_dict[f"decoder.layers.{i}.encoder_attn.q_proj.bias"] = in_proj_bias_cross_attn[:256]
164
+ state_dict[f"decoder.layers.{i}.encoder_attn.k_proj.weight"] = in_proj_weight_cross_attn[256:512, :]
165
+ state_dict[f"decoder.layers.{i}.encoder_attn.k_proj.bias"] = in_proj_bias_cross_attn[256:512]
166
+ state_dict[f"decoder.layers.{i}.encoder_attn.v_proj.weight"] = in_proj_weight_cross_attn[-256:, :]
167
+ state_dict[f"decoder.layers.{i}.encoder_attn.v_proj.bias"] = in_proj_bias_cross_attn[-256:]
168
+
169
+
170
+ # We will verify our results on an image of cute cats
171
+ def prepare_img():
172
+ url = "http://images.cocodataset.org/val2017/000000039769.jpg"
173
+ im = Image.open(requests.get(url, stream=True).raw)
174
+
175
+ return im
176
+
177
+
178
+ @torch.no_grad()
179
+ def convert_detr_checkpoint(model_name, pytorch_dump_folder_path):
180
+ """
181
+ Copy/paste/tweak model's weights to our DETR structure.
182
+ """
183
+
184
+ # load default config
185
+ config = DetrConfig()
186
+ # set backbone and dilation attributes
187
+ if "resnet101" in model_name:
188
+ config.backbone = "resnet101"
189
+ if "dc5" in model_name:
190
+ config.dilation = True
191
+ is_panoptic = "panoptic" in model_name
192
+ if is_panoptic:
193
+ config.num_labels = 250
194
+ else:
195
+ config.num_labels = 91
196
+ repo_id = "huggingface/label-files"
197
+ filename = "coco-detection-id2label.json"
198
+ id2label = json.load(open(hf_hub_download(repo_id, filename, repo_type="dataset"), "r"))
199
+ id2label = {int(k): v for k, v in id2label.items()}
200
+ config.id2label = id2label
201
+ config.label2id = {v: k for k, v in id2label.items()}
202
+
203
+ # load image processor
204
+ format = "coco_panoptic" if is_panoptic else "coco_detection"
205
+ image_processor = DetrImageProcessor(format=format)
206
+
207
+ # prepare image
208
+ img = prepare_img()
209
+ encoding = image_processor(images=img, return_tensors="pt")
210
+ pixel_values = encoding["pixel_values"]
211
+
212
+ logger.info(f"Converting model {model_name}...")
213
+
214
+ # load original model from torch hub
215
+ detr = torch.hub.load("facebookresearch/detr", model_name, pretrained=True).eval()
216
+ state_dict = detr.state_dict()
217
+ # rename keys
218
+ for src, dest in rename_keys:
219
+ if is_panoptic:
220
+ src = "detr." + src
221
+ rename_key(state_dict, src, dest)
222
+ state_dict = rename_backbone_keys(state_dict)
223
+ # query, key and value matrices need special treatment
224
+ read_in_q_k_v(state_dict, is_panoptic=is_panoptic)
225
+ # important: we need to prepend a prefix to each of the base model keys as the head models use different attributes for them
226
+ prefix = "detr.model." if is_panoptic else "model."
227
+ for key in state_dict.copy().keys():
228
+ if is_panoptic:
229
+ if (
230
+ key.startswith("detr")
231
+ and not key.startswith("class_labels_classifier")
232
+ and not key.startswith("bbox_predictor")
233
+ ):
234
+ val = state_dict.pop(key)
235
+ state_dict["detr.model" + key[4:]] = val
236
+ elif "class_labels_classifier" in key or "bbox_predictor" in key:
237
+ val = state_dict.pop(key)
238
+ state_dict["detr." + key] = val
239
+ elif key.startswith("bbox_attention") or key.startswith("mask_head"):
240
+ continue
241
+ else:
242
+ val = state_dict.pop(key)
243
+ state_dict[prefix + key] = val
244
+ else:
245
+ if not key.startswith("class_labels_classifier") and not key.startswith("bbox_predictor"):
246
+ val = state_dict.pop(key)
247
+ state_dict[prefix + key] = val
248
+ # finally, create HuggingFace model and load state dict
249
+ model = DetrForSegmentation(config) if is_panoptic else DetrForObjectDetection(config)
250
+ model.load_state_dict(state_dict)
251
+ model.eval()
252
+ # verify our conversion
253
+ original_outputs = detr(pixel_values)
254
+ outputs = model(pixel_values)
255
+ assert torch.allclose(outputs.logits, original_outputs["pred_logits"], atol=1e-4)
256
+ assert torch.allclose(outputs.pred_boxes, original_outputs["pred_boxes"], atol=1e-4)
257
+ if is_panoptic:
258
+ assert torch.allclose(outputs.pred_masks, original_outputs["pred_masks"], atol=1e-4)
259
+
260
+ # Save model and image processor
261
+ logger.info(f"Saving PyTorch model and image processor to {pytorch_dump_folder_path}...")
262
+ Path(pytorch_dump_folder_path).mkdir(exist_ok=True)
263
+ model.save_pretrained(pytorch_dump_folder_path)
264
+ image_processor.save_pretrained(pytorch_dump_folder_path)
265
+
266
+
267
+ if __name__ == "__main__":
268
+ parser = argparse.ArgumentParser()
269
+
270
+ parser.add_argument(
271
+ "--model_name", default="detr_resnet50", type=str, help="Name of the DETR model you'd like to convert."
272
+ )
273
+ parser.add_argument(
274
+ "--pytorch_dump_folder_path", default=None, type=str, help="Path to the folder to output PyTorch model."
275
+ )
276
+ args = parser.parse_args()
277
+ convert_detr_checkpoint(args.model_name, args.pytorch_dump_folder_path)
tasks/tasksmith-e0f68dd4420c/environment/source/src/transformers/models/detr/convert_detr_to_pytorch.py ADDED
@@ -0,0 +1,385 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 DETR checkpoints with native (Transformers) backbone."""
16
+
17
+ import argparse
18
+ import json
19
+ from pathlib import Path
20
+
21
+ import requests
22
+ import torch
23
+ from huggingface_hub import hf_hub_download
24
+ from PIL import Image
25
+
26
+ from transformers import DetrConfig, DetrForObjectDetection, DetrForSegmentation, DetrImageProcessor, ResNetConfig
27
+ from transformers.utils import logging
28
+
29
+
30
+ logging.set_verbosity_info()
31
+ logger = logging.get_logger(__name__)
32
+
33
+
34
+ def get_detr_config(model_name):
35
+ # initialize config
36
+ if "resnet-50" in model_name:
37
+ backbone_config = ResNetConfig.from_pretrained("microsoft/resnet-50")
38
+ elif "resnet-101" in model_name:
39
+ backbone_config = ResNetConfig.from_pretrained("microsoft/resnet-101")
40
+ else:
41
+ raise ValueError("Model name should include either resnet50 or resnet101")
42
+
43
+ config = DetrConfig(use_timm_backbone=False, backbone_config=backbone_config)
44
+
45
+ # set label attributes
46
+ is_panoptic = "panoptic" in model_name
47
+ if is_panoptic:
48
+ config.num_labels = 250
49
+ else:
50
+ config.num_labels = 91
51
+ repo_id = "huggingface/label-files"
52
+ filename = "coco-detection-id2label.json"
53
+ id2label = json.load(open(hf_hub_download(repo_id, filename, repo_type="dataset"), "r"))
54
+ id2label = {int(k): v for k, v in id2label.items()}
55
+ config.id2label = id2label
56
+ config.label2id = {v: k for k, v in id2label.items()}
57
+
58
+ return config, is_panoptic
59
+
60
+
61
+ def create_rename_keys(config):
62
+ # here we list all keys to be renamed (original name on the left, our name on the right)
63
+ rename_keys = []
64
+
65
+ # stem
66
+ # fmt: off
67
+ rename_keys.append(("backbone.0.body.conv1.weight", "backbone.conv_encoder.model.embedder.embedder.convolution.weight"))
68
+ rename_keys.append(("backbone.0.body.bn1.weight", "backbone.conv_encoder.model.embedder.embedder.normalization.weight"))
69
+ rename_keys.append(("backbone.0.body.bn1.bias", "backbone.conv_encoder.model.embedder.embedder.normalization.bias"))
70
+ rename_keys.append(("backbone.0.body.bn1.running_mean", "backbone.conv_encoder.model.embedder.embedder.normalization.running_mean"))
71
+ rename_keys.append(("backbone.0.body.bn1.running_var", "backbone.conv_encoder.model.embedder.embedder.normalization.running_var"))
72
+ # stages
73
+ for stage_idx in range(len(config.backbone_config.depths)):
74
+ for layer_idx in range(config.backbone_config.depths[stage_idx]):
75
+ # shortcut
76
+ if layer_idx == 0:
77
+ rename_keys.append(
78
+ (
79
+ f"backbone.0.body.layer{stage_idx + 1}.{layer_idx}.downsample.0.weight",
80
+ f"backbone.conv_encoder.model.encoder.stages.{stage_idx}.layers.{layer_idx}.shortcut.convolution.weight",
81
+ )
82
+ )
83
+ rename_keys.append(
84
+ (
85
+ f"backbone.0.body.layer{stage_idx + 1}.{layer_idx}.downsample.1.weight",
86
+ f"backbone.conv_encoder.model.encoder.stages.{stage_idx}.layers.{layer_idx}.shortcut.normalization.weight",
87
+ )
88
+ )
89
+ rename_keys.append(
90
+ (
91
+ f"backbone.0.body.layer{stage_idx + 1}.{layer_idx}.downsample.1.bias",
92
+ f"backbone.conv_encoder.model.encoder.stages.{stage_idx}.layers.{layer_idx}.shortcut.normalization.bias",
93
+ )
94
+ )
95
+ rename_keys.append(
96
+ (
97
+ f"backbone.0.body.layer{stage_idx + 1}.{layer_idx}.downsample.1.running_mean",
98
+ f"backbone.conv_encoder.model.encoder.stages.{stage_idx}.layers.{layer_idx}.shortcut.normalization.running_mean",
99
+ )
100
+ )
101
+ rename_keys.append(
102
+ (
103
+ f"backbone.0.body.layer{stage_idx + 1}.{layer_idx}.downsample.1.running_var",
104
+ f"backbone.conv_encoder.model.encoder.stages.{stage_idx}.layers.{layer_idx}.shortcut.normalization.running_var",
105
+ )
106
+ )
107
+ # 3 convs
108
+ for i in range(3):
109
+ rename_keys.append(
110
+ (
111
+ f"backbone.0.body.layer{stage_idx + 1}.{layer_idx}.conv{i+1}.weight",
112
+ f"backbone.conv_encoder.model.encoder.stages.{stage_idx}.layers.{layer_idx}.layer.{i}.convolution.weight",
113
+ )
114
+ )
115
+ rename_keys.append(
116
+ (
117
+ f"backbone.0.body.layer{stage_idx + 1}.{layer_idx}.bn{i+1}.weight",
118
+ f"backbone.conv_encoder.model.encoder.stages.{stage_idx}.layers.{layer_idx}.layer.{i}.normalization.weight",
119
+ )
120
+ )
121
+ rename_keys.append(
122
+ (
123
+ f"backbone.0.body.layer{stage_idx + 1}.{layer_idx}.bn{i+1}.bias",
124
+ f"backbone.conv_encoder.model.encoder.stages.{stage_idx}.layers.{layer_idx}.layer.{i}.normalization.bias",
125
+ )
126
+ )
127
+ rename_keys.append(
128
+ (
129
+ f"backbone.0.body.layer{stage_idx + 1}.{layer_idx}.bn{i+1}.running_mean",
130
+ f"backbone.conv_encoder.model.encoder.stages.{stage_idx}.layers.{layer_idx}.layer.{i}.normalization.running_mean",
131
+ )
132
+ )
133
+ rename_keys.append(
134
+ (
135
+ f"backbone.0.body.layer{stage_idx + 1}.{layer_idx}.bn{i+1}.running_var",
136
+ f"backbone.conv_encoder.model.encoder.stages.{stage_idx}.layers.{layer_idx}.layer.{i}.normalization.running_var",
137
+ )
138
+ )
139
+ # fmt: on
140
+
141
+ for i in range(config.encoder_layers):
142
+ # encoder layers: output projection, 2 feedforward neural networks and 2 layernorms
143
+ rename_keys.append(
144
+ (
145
+ f"transformer.encoder.layers.{i}.self_attn.out_proj.weight",
146
+ f"encoder.layers.{i}.self_attn.out_proj.weight",
147
+ )
148
+ )
149
+ rename_keys.append(
150
+ (f"transformer.encoder.layers.{i}.self_attn.out_proj.bias", f"encoder.layers.{i}.self_attn.out_proj.bias")
151
+ )
152
+ rename_keys.append((f"transformer.encoder.layers.{i}.linear1.weight", f"encoder.layers.{i}.fc1.weight"))
153
+ rename_keys.append((f"transformer.encoder.layers.{i}.linear1.bias", f"encoder.layers.{i}.fc1.bias"))
154
+ rename_keys.append((f"transformer.encoder.layers.{i}.linear2.weight", f"encoder.layers.{i}.fc2.weight"))
155
+ rename_keys.append((f"transformer.encoder.layers.{i}.linear2.bias", f"encoder.layers.{i}.fc2.bias"))
156
+ rename_keys.append(
157
+ (f"transformer.encoder.layers.{i}.norm1.weight", f"encoder.layers.{i}.self_attn_layer_norm.weight")
158
+ )
159
+ rename_keys.append(
160
+ (f"transformer.encoder.layers.{i}.norm1.bias", f"encoder.layers.{i}.self_attn_layer_norm.bias")
161
+ )
162
+ rename_keys.append(
163
+ (f"transformer.encoder.layers.{i}.norm2.weight", f"encoder.layers.{i}.final_layer_norm.weight")
164
+ )
165
+ rename_keys.append((f"transformer.encoder.layers.{i}.norm2.bias", f"encoder.layers.{i}.final_layer_norm.bias"))
166
+ # decoder layers: 2 times output projection, 2 feedforward neural networks and 3 layernorms
167
+ rename_keys.append(
168
+ (
169
+ f"transformer.decoder.layers.{i}.self_attn.out_proj.weight",
170
+ f"decoder.layers.{i}.self_attn.out_proj.weight",
171
+ )
172
+ )
173
+ rename_keys.append(
174
+ (f"transformer.decoder.layers.{i}.self_attn.out_proj.bias", f"decoder.layers.{i}.self_attn.out_proj.bias")
175
+ )
176
+ rename_keys.append(
177
+ (
178
+ f"transformer.decoder.layers.{i}.multihead_attn.out_proj.weight",
179
+ f"decoder.layers.{i}.encoder_attn.out_proj.weight",
180
+ )
181
+ )
182
+ rename_keys.append(
183
+ (
184
+ f"transformer.decoder.layers.{i}.multihead_attn.out_proj.bias",
185
+ f"decoder.layers.{i}.encoder_attn.out_proj.bias",
186
+ )
187
+ )
188
+ rename_keys.append((f"transformer.decoder.layers.{i}.linear1.weight", f"decoder.layers.{i}.fc1.weight"))
189
+ rename_keys.append((f"transformer.decoder.layers.{i}.linear1.bias", f"decoder.layers.{i}.fc1.bias"))
190
+ rename_keys.append((f"transformer.decoder.layers.{i}.linear2.weight", f"decoder.layers.{i}.fc2.weight"))
191
+ rename_keys.append((f"transformer.decoder.layers.{i}.linear2.bias", f"decoder.layers.{i}.fc2.bias"))
192
+ rename_keys.append(
193
+ (f"transformer.decoder.layers.{i}.norm1.weight", f"decoder.layers.{i}.self_attn_layer_norm.weight")
194
+ )
195
+ rename_keys.append(
196
+ (f"transformer.decoder.layers.{i}.norm1.bias", f"decoder.layers.{i}.self_attn_layer_norm.bias")
197
+ )
198
+ rename_keys.append(
199
+ (f"transformer.decoder.layers.{i}.norm2.weight", f"decoder.layers.{i}.encoder_attn_layer_norm.weight")
200
+ )
201
+ rename_keys.append(
202
+ (f"transformer.decoder.layers.{i}.norm2.bias", f"decoder.layers.{i}.encoder_attn_layer_norm.bias")
203
+ )
204
+ rename_keys.append(
205
+ (f"transformer.decoder.layers.{i}.norm3.weight", f"decoder.layers.{i}.final_layer_norm.weight")
206
+ )
207
+ rename_keys.append((f"transformer.decoder.layers.{i}.norm3.bias", f"decoder.layers.{i}.final_layer_norm.bias"))
208
+
209
+ # convolutional projection + query embeddings + layernorm of decoder + class and bounding box heads
210
+ rename_keys.extend(
211
+ [
212
+ ("input_proj.weight", "input_projection.weight"),
213
+ ("input_proj.bias", "input_projection.bias"),
214
+ ("query_embed.weight", "query_position_embeddings.weight"),
215
+ ("transformer.decoder.norm.weight", "decoder.layernorm.weight"),
216
+ ("transformer.decoder.norm.bias", "decoder.layernorm.bias"),
217
+ ("class_embed.weight", "class_labels_classifier.weight"),
218
+ ("class_embed.bias", "class_labels_classifier.bias"),
219
+ ("bbox_embed.layers.0.weight", "bbox_predictor.layers.0.weight"),
220
+ ("bbox_embed.layers.0.bias", "bbox_predictor.layers.0.bias"),
221
+ ("bbox_embed.layers.1.weight", "bbox_predictor.layers.1.weight"),
222
+ ("bbox_embed.layers.1.bias", "bbox_predictor.layers.1.bias"),
223
+ ("bbox_embed.layers.2.weight", "bbox_predictor.layers.2.weight"),
224
+ ("bbox_embed.layers.2.bias", "bbox_predictor.layers.2.bias"),
225
+ ]
226
+ )
227
+
228
+ return rename_keys
229
+
230
+
231
+ def rename_key(state_dict, old, new):
232
+ val = state_dict.pop(old)
233
+ state_dict[new] = val
234
+
235
+
236
+ def read_in_q_k_v(state_dict, is_panoptic=False):
237
+ prefix = ""
238
+ if is_panoptic:
239
+ prefix = "detr."
240
+
241
+ # first: transformer encoder
242
+ for i in range(6):
243
+ # read in weights + bias of input projection layer (in PyTorch's MultiHeadAttention, this is a single matrix + bias)
244
+ in_proj_weight = state_dict.pop(f"{prefix}transformer.encoder.layers.{i}.self_attn.in_proj_weight")
245
+ in_proj_bias = state_dict.pop(f"{prefix}transformer.encoder.layers.{i}.self_attn.in_proj_bias")
246
+ # next, add query, keys and values (in that order) to the state dict
247
+ state_dict[f"encoder.layers.{i}.self_attn.q_proj.weight"] = in_proj_weight[:256, :]
248
+ state_dict[f"encoder.layers.{i}.self_attn.q_proj.bias"] = in_proj_bias[:256]
249
+ state_dict[f"encoder.layers.{i}.self_attn.k_proj.weight"] = in_proj_weight[256:512, :]
250
+ state_dict[f"encoder.layers.{i}.self_attn.k_proj.bias"] = in_proj_bias[256:512]
251
+ state_dict[f"encoder.layers.{i}.self_attn.v_proj.weight"] = in_proj_weight[-256:, :]
252
+ state_dict[f"encoder.layers.{i}.self_attn.v_proj.bias"] = in_proj_bias[-256:]
253
+ # next: transformer decoder (which is a bit more complex because it also includes cross-attention)
254
+ for i in range(6):
255
+ # read in weights + bias of input projection layer of self-attention
256
+ in_proj_weight = state_dict.pop(f"{prefix}transformer.decoder.layers.{i}.self_attn.in_proj_weight")
257
+ in_proj_bias = state_dict.pop(f"{prefix}transformer.decoder.layers.{i}.self_attn.in_proj_bias")
258
+ # next, add query, keys and values (in that order) to the state dict
259
+ state_dict[f"decoder.layers.{i}.self_attn.q_proj.weight"] = in_proj_weight[:256, :]
260
+ state_dict[f"decoder.layers.{i}.self_attn.q_proj.bias"] = in_proj_bias[:256]
261
+ state_dict[f"decoder.layers.{i}.self_attn.k_proj.weight"] = in_proj_weight[256:512, :]
262
+ state_dict[f"decoder.layers.{i}.self_attn.k_proj.bias"] = in_proj_bias[256:512]
263
+ state_dict[f"decoder.layers.{i}.self_attn.v_proj.weight"] = in_proj_weight[-256:, :]
264
+ state_dict[f"decoder.layers.{i}.self_attn.v_proj.bias"] = in_proj_bias[-256:]
265
+ # read in weights + bias of input projection layer of cross-attention
266
+ in_proj_weight_cross_attn = state_dict.pop(
267
+ f"{prefix}transformer.decoder.layers.{i}.multihead_attn.in_proj_weight"
268
+ )
269
+ in_proj_bias_cross_attn = state_dict.pop(f"{prefix}transformer.decoder.layers.{i}.multihead_attn.in_proj_bias")
270
+ # next, add query, keys and values (in that order) of cross-attention to the state dict
271
+ state_dict[f"decoder.layers.{i}.encoder_attn.q_proj.weight"] = in_proj_weight_cross_attn[:256, :]
272
+ state_dict[f"decoder.layers.{i}.encoder_attn.q_proj.bias"] = in_proj_bias_cross_attn[:256]
273
+ state_dict[f"decoder.layers.{i}.encoder_attn.k_proj.weight"] = in_proj_weight_cross_attn[256:512, :]
274
+ state_dict[f"decoder.layers.{i}.encoder_attn.k_proj.bias"] = in_proj_bias_cross_attn[256:512]
275
+ state_dict[f"decoder.layers.{i}.encoder_attn.v_proj.weight"] = in_proj_weight_cross_attn[-256:, :]
276
+ state_dict[f"decoder.layers.{i}.encoder_attn.v_proj.bias"] = in_proj_bias_cross_attn[-256:]
277
+
278
+
279
+ # We will verify our results on an image of cute cats
280
+ def prepare_img():
281
+ url = "http://images.cocodataset.org/val2017/000000039769.jpg"
282
+ im = Image.open(requests.get(url, stream=True).raw)
283
+
284
+ return im
285
+
286
+
287
+ @torch.no_grad()
288
+ def convert_detr_checkpoint(model_name, pytorch_dump_folder_path=None, push_to_hub=False):
289
+ """
290
+ Copy/paste/tweak model's weights to our DETR structure.
291
+ """
292
+
293
+ # load default config
294
+ config, is_panoptic = get_detr_config(model_name)
295
+
296
+ # load original model from torch hub
297
+ model_name_to_original_name = {
298
+ "detr-resnet-50": "detr_resnet50",
299
+ "detr-resnet-101": "detr_resnet101",
300
+ }
301
+ logger.info(f"Converting model {model_name}...")
302
+ detr = torch.hub.load("facebookresearch/detr", model_name_to_original_name[model_name], pretrained=True).eval()
303
+ state_dict = detr.state_dict()
304
+ # rename keys
305
+ for src, dest in create_rename_keys(config):
306
+ if is_panoptic:
307
+ src = "detr." + src
308
+ rename_key(state_dict, src, dest)
309
+ # query, key and value matrices need special treatment
310
+ read_in_q_k_v(state_dict, is_panoptic=is_panoptic)
311
+ # important: we need to prepend a prefix to each of the base model keys as the head models use different attributes for them
312
+ prefix = "detr.model." if is_panoptic else "model."
313
+ for key in state_dict.copy().keys():
314
+ if is_panoptic:
315
+ if (
316
+ key.startswith("detr")
317
+ and not key.startswith("class_labels_classifier")
318
+ and not key.startswith("bbox_predictor")
319
+ ):
320
+ val = state_dict.pop(key)
321
+ state_dict["detr.model" + key[4:]] = val
322
+ elif "class_labels_classifier" in key or "bbox_predictor" in key:
323
+ val = state_dict.pop(key)
324
+ state_dict["detr." + key] = val
325
+ elif key.startswith("bbox_attention") or key.startswith("mask_head"):
326
+ continue
327
+ else:
328
+ val = state_dict.pop(key)
329
+ state_dict[prefix + key] = val
330
+ else:
331
+ if not key.startswith("class_labels_classifier") and not key.startswith("bbox_predictor"):
332
+ val = state_dict.pop(key)
333
+ state_dict[prefix + key] = val
334
+
335
+ # finally, create HuggingFace model and load state dict
336
+ model = DetrForSegmentation(config) if is_panoptic else DetrForObjectDetection(config)
337
+ model.load_state_dict(state_dict)
338
+ model.eval()
339
+
340
+ # verify our conversion on an image
341
+ format = "coco_panoptic" if is_panoptic else "coco_detection"
342
+ processor = DetrImageProcessor(format=format)
343
+
344
+ encoding = processor(images=prepare_img(), return_tensors="pt")
345
+ pixel_values = encoding["pixel_values"]
346
+
347
+ original_outputs = detr(pixel_values)
348
+ outputs = model(pixel_values)
349
+
350
+ assert torch.allclose(outputs.logits, original_outputs["pred_logits"], atol=1e-3)
351
+ assert torch.allclose(outputs.pred_boxes, original_outputs["pred_boxes"], atol=1e-3)
352
+ if is_panoptic:
353
+ assert torch.allclose(outputs.pred_masks, original_outputs["pred_masks"], atol=1e-4)
354
+ print("Looks ok!")
355
+
356
+ if pytorch_dump_folder_path is not None:
357
+ # Save model and image processor
358
+ logger.info(f"Saving PyTorch model and image processor to {pytorch_dump_folder_path}...")
359
+ Path(pytorch_dump_folder_path).mkdir(exist_ok=True)
360
+ model.save_pretrained(pytorch_dump_folder_path)
361
+ processor.save_pretrained(pytorch_dump_folder_path)
362
+
363
+ if push_to_hub:
364
+ # Upload model and image processor to the hub
365
+ logger.info("Uploading PyTorch model and image processor to the hub...")
366
+ model.push_to_hub(f"nielsr/{model_name}")
367
+ processor.push_to_hub(f"nielsr/{model_name}")
368
+
369
+
370
+ if __name__ == "__main__":
371
+ parser = argparse.ArgumentParser()
372
+
373
+ parser.add_argument(
374
+ "--model_name",
375
+ default="detr-resnet-50",
376
+ type=str,
377
+ choices=["detr-resnet-50", "detr-resnet-101"],
378
+ help="Name of the DETR model you'd like to convert.",
379
+ )
380
+ parser.add_argument(
381
+ "--pytorch_dump_folder_path", default=None, type=str, help="Path to the folder to output PyTorch model."
382
+ )
383
+ parser.add_argument("--push_to_hub", action="store_true", help="Whether to push the model to the hub or not.")
384
+ args = parser.parse_args()
385
+ convert_detr_checkpoint(args.model_name, args.pytorch_dump_folder_path, args.push_to_hub)