EfficientFormer-V2

Category: Efficient/Mobile · Code: timm/models/efficientformer_v2.py · Architectures: 4 · Pretrained weights: 4 (4 with ImageNet-1k results)

EfficientFormer-V2 revisits the EfficientFormer design to reduce both parameter count and latency for mobile devices, with convolutional stages and attention in the later, lower resolution stages.

Papers

• Rethinking Vision Transformers for MobileNet Size and Speed

Usage

See the Quickstart for loading pretrained weights, image preprocessing and fine-tuning, and Feature Extraction for using the models as backbones.

>>> import timm
>>> model = timm.create_model('efficientformerv2_l.snap_dist_in1k', pretrained=True)
>>> data_config = timm.data.resolve_model_data_config(model)

Model API support

✓ supported, ✓ (square) works for square sizes only, ✗ not supported, – not needed (the model already accepts any input size). Checked by running each feature on a randomly initialized model (EfficientFormerV2 with efficientformerv2_s0 at 224), other architectures of the same class are expected to behave the same. See the Model API page for details.

Architectures

GMACs and parameter counts are for the default input size and classifier of each architecture, from the benchmark results.

Pretrained weights

Top-1 is ImageNet-1k validation accuracy from results-imagenet.csv at the listed eval size, - if the weight has no ImageNet-1k result (e.g. pretraining or image-text weights). Classes is the size of the pretrained classifier, none for weights without one.

Citation

@article{
    li2022rethinking,
    title={Rethinking Vision Transformers for MobileNet Size and Speed},
    author={Li, Yanyu and Hu, Ju and Wen, Yang and Evangelidis, Georgios and Salahi, Kamyar and Wang, Yanzhi and Tulyakov, Sergey and Ren, Jian},
    journal={arXiv preprint arXiv:2212.08059},
    year={2022}
}