Cited by 202Advanced Neural Network ApplicationsVisual Attention and Saliency DetectionDomain Adaptation and Few-Shot Learning

Patch Slimming for Efficient Vision Transformers

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Tang, Yehui, Han, Kai, Wang, Yunhe, Xu, Chang, Guo, Jianyuan, Xu, Chao, Tao, Dacheng·2022·2022 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)

Abstract

This paper studies the efficiency problem for visual transformers by excavating redundant calculation in given networks. The recent transformer architecture has demonstrated its effectiveness for achieving excellent performance on a series of computer vision tasks. However, similar to that of convolutional neural networks, the huge computational cost of vision transformers is still a severe issue. Considering that the attention mechanism aggregates different patches layer-by-layer, we present a novel patch slimming approach that discards useless patches in a topdown paradigm. We first identify the effective patches in the last layer and then use them to guide the patch selection process of previous layers. For each layer, the impact of a patch on the final output feature is approximated and patches with less impacts will be removed. Experimental results on benchmark datasets demonstrate that the proposed method can significantly reduce the computational costs of vision transformers without affecting their performances. For example, over 45% FLOPs of the ViT-Ti model can be reduced with only 0.2% top-1 accuracy drop on the ImageNet dataset.

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Crossref · 10.1109/cvpr52688.2022.01185

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  • Vision Transformers suffer from higher memory footprints, computational overheads, and power consumption than convolutional neural networks, hindering their deployment and real-time inference on resource-constrained edge devices.

    “Nevertheless, as compared to convolutional neural networks (CNNs), ViTs suffer from higher memory footprints, computational overheads, and power consumption, hindering their deployment and real-time inference on resourceconstrained edge devices [25, 17, 15, 37].”

    From I-ViT: Integer-only Quantization for Efficient Vision Transformer Inference (2023) · cites this paper as [37]

    The Introduction says vision transformers have high computational cost that blocks deployment on resource-limited devices such as phones and IoT devices. It says this is similar to CNNs, not that ViTs have higher costs than CNNs. The cited passages do not establish higher memory use, power consumption, or a specific obstacle to real-time inference. (LLM, conf=0.88)

    Experimental — accuracy not yet measured

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2 of the 42 references couldn’t be matched to a known paper.

Research works printed but not linked: 5

  1. Matthieu Courbariaux, Itay Hubara, Daniel Soudry, Ran El-Yaniv, and Yoshua Bengio. Binarized neural networks: Training deep neural networks with weights and activations constrained to+ 1 or-1. arXiv preprint arXiv:1602.02830, 2016. · arXiv
  2. Alexey Dosovitskiy, Lucas Beyer, Alexander Kolesnikov, Dirk Weissenborn, Xiaohua Zhai, Thomas Unterthiner, Mostafa Dehghani, Matthias Minderer, Georg Heigold, Syl- vain Gelly, et al. An image is worth 16x16 words: Trans- formers for image recognition at scale. arXiv preprint arXiv:2010.11929, 2020. 1, 7 · arXiv
  3. Zhenhua Liu, Jizheng Xu, Xiulian Peng, and Ruiqin Xiong. Frequency-domain dynamic pruning for convolutional neu- ral networks. Advances in neural information processing systems, 31, 2018. 1
  4. Hugo Touvron, Matthieu Cord, Matthijs Douze, Francisco Massa, Alexandre Sablayrolles, and Hervé Jégou. Training data-efficient image transformers & distillation through at- tention. arXiv preprint arXiv:2012.12877, 2020. 1, 7 · arXiv
  5. Mingjian Zhu, Kai Han, Yehui Tang, and Yunhe Wang. Vi- sual transformer pruning. arXiv preprint arXiv:2104.08500, 2021. 2, 6, 7 · arXiv

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Authors
Tang, Y., Han, K., Wang, Y., Xu, C., Guo, J., Xu, C., & Tao, D.
Affiliations
  • Peking University (CN)
  • Huawei Technologies (China) (CN)
  • The University of Sydney (AU)
  • Jingdong (China) (CN)
Venue
2022 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)
Publisher
IEEE
Published
2022-06
Pages
12155-12164
ISSN
1063-6919 (ISSN-L)
OpenAlex
W4312340826
Cited by
201
References
42
Citations by year
2026: 22 · 2025: 52 · 2024: 49 · 2023: 54 · 2022: 19 · 2021: 5
FWCI
15.78
Type
conference paper
Language
en
Open access
Locations
  • IEEE Computer Society Conference on Computer Vision and Pattern Recognition/Proceedings - IEEE Computer Society Conference on Computer Vision and Pattern Recognition/Proceedings (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Funders
  • National Natural Science Foundation of China (61876007)
  • Australian Research Council (DP210101859)
Topics
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Advanced Neural Network Applications
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Visual Attention and Saliency Detection
  • Physical Sciences › Computer Science › Artificial Intelligence › Domain Adaptation and Few-Shot Learning
Keywords
vision transformer, computational efficiency, attention mechanism, patch selection, FLOPs reduction, ViT

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