Cited by 122Domain Adaptation and Few-Shot LearningAdvanced Neural Network ApplicationsAdvanced Image and Video Retrieval Techniques

Crafting Better Contrastive Views for Siamese Representation Learning

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Peng, Xiangyu, Wang, Kai, Zhu, Zheng, Wang, Mang, You, Yang·2022·2022 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)

Abstract

Recent self-supervised contrastive learning methods greatly benefit from the Siamese structure that aims at minimizing distances between positive pairs. For high performance Siamese representation learning, one of the keys is to design good contrastive pairs. Most previous works simply apply random sampling to make different crops of the same image, which overlooks the semantic information that may degrade the quality of views. In this work, we propose ContrastiveCrop, which could effectively generate better crops for Siamese representation learning. Firstly, a semantic-aware object localization strategy is proposed within the training process in a fully unsupervised manner. This guides us to generate contrastive views which could avoid most false positives (i.e., object vs. background). Moreover, we empirically find that views with similar appearances are trivial for the Siamese model training. Thus, a center-suppressed sampling is further designed to enlarge the variance of crops. Remarkably, our method takes a careful consideration of positive pairs for contrastive learning with negligible extra training overhead. As a plug-and-play and framework-agnostic module, ContrastiveCrop consistently improves SimCLR, MoCo, BYOL, SimSiam by 0.4% ∼ 2.0% classification accuracy on CIFAR-10, CIFAR-100, Tiny ImageNet and STL-10. Superior results are also achieved on downstream detection and segmentation tasks when pre-trained on ImageNet-1K.

Integrity signals

Registry

Crossref · 10.1109/cvpr52688.2022.01556

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51 of 51 references verified0 citation errors · 0 not checkable

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  • Recent work has demonstrated the benefit of using learned visual word masks or spatially constrained crops to encourage representational invariance with semantically more similar regions of an image.

    “Recent work has demonstrated the benefit of using learned visual word masks98,99 or spatially constrained crops100,101 to encourage representational invariance with semantically more similar regions of an image.”

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Authors
Peng, X., Wang, K., Zhu, Z., Wang, M., & You, Y.
Affiliations
  • National University of Singapore (SG)
  • Tsinghua University (CN)
  • Alibaba Group (China) (CN)
Venue
2022 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)
Publisher
IEEE
Published
2022-06
Pages
16010-16019
ISSN
1063-6919 (ISSN-L)
OpenAlex
W4313056800
Cited by
122
References
54
Citations by year
2026: 9 · 2025: 33 · 2024: 25 · 2023: 39 · 2022: 16
FWCI
15.62
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, cc-by)
  • arXiv (Cornell University) (cc-by)
Funders
National Research Foundation, Singapore
Topics
  • Physical Sciences › Computer Science › Artificial Intelligence › Domain Adaptation and Few-Shot Learning
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Advanced Neural Network Applications
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Advanced Image and Video Retrieval Techniques
Keywords
contrastive learning, SimCLR, MoCo, BYOL, SimSiam, self-supervised pre-training, image classification, object detection, semantic segmentation

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