Cited by 69Adversarial Robustness in Machine LearningDigital Media Forensic DetectionSecurity and Verification in Computing

Boosting Fast Adversarial Training With Learnable Adversarial Initialization

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Jia, Xiaojun, Zhang, Yong, Wu, Baoyuan, Wang, Jue, Cao, Xiaochun·2022·IEEE Transactions on Image Processing

Abstract

Adversarial training (AT) has been demonstrated to be effective in improving model robustness by leveraging adversarial examples for training. However, most AT methods are in face of expensive time and computational cost for calculating gradients at multiple steps in generating adversarial examples. To boost training efficiency, fast gradient sign method (FGSM) is adopted in fast AT methods by calculating gradient only once. Unfortunately, the robustness is far from satisfactory. One reason may arise from the initialization fashion. Existing fast AT generally uses a random sample-agnostic initialization, which facilitates the efficiency yet hinders a further robustness improvement. Up to now, the initialization in fast AT is still not extensively explored. In this paper, focusing on image classification, we boost fast AT with a sample-dependent adversarial initialization, i.e., an output from a generative network conditioned on a benign image and its gradient information from the target network. As the generative network and the target network are optimized jointly in the training phase, the former can adaptively generate an effective initialization with respect to the latter, which motivates gradually improved robustness. Experimental evaluations on four benchmark databases demonstrate the superiority of our proposed method over state-of-the-art fast AT methods, as well as comparable robustness to advanced multi-step AT methods. The code is released at https://github.com//jiaxiaojunQAQ//FGSM-SDI.

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Authors
Jia, X., Zhang, Y., Wu, B., Wang, J., & Cao, X.
Affiliations
  • Chinese Academy of Sciences (CN)
  • Tencent (China) (CN)
  • Shenzhen Research Institute of Big Data (CN)
  • Sun Yat-sen University (CN)
Venue
IEEE Transactions on Image Processing
Published
2022
Volume
31
Pages
4417-4430
ISSN
  • 1057-7149 (ISSN-L)
  • 1941-0042
OpenAlex
W3206581298
Cited by
69
References
36
Citations by year
2026: 11 · 2025: 17 · 2024: 22 · 2023: 14 · 2022: 5
FWCI
4.77
Type
journal article
Language
en
Open access
Locations
  • IEEE Transactions on Image Processing (publishedVersion)
  • PubMed (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Funders
  • National Key Research and Development Program of China (2019YFB1406500)
  • National Natural Science Foundation of China (62025604, 62132006, U1803264, 62076213)
  • Open Project Program of State Key Laboratory of Virtual Reality Technology and Systems, Beihang University (VRLAB2021C06)
  • Tencent AI Laboratory Rhino-Bird Focused Research Program (JR202123)
Topics
  • Physical Sciences › Computer Science › Artificial Intelligence › Adversarial Robustness in Machine Learning
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Digital Media Forensic Detection
  • Physical Sciences › Computer Science › Artificial Intelligence › Security and Verification in Computing
Keywords
FGSM, adversarial robustness, image classification, generative adversarial networks, training efficiency

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