Search

Your search keyword '"Long, Yuyang"' showing total 521 results
Start Over Author "Long, Yuyang"
521 results on '"Long, Yuyang"'

7. Frequency Domain Model Augmentation for Adversarial Attack

Author

Long, Yuyang, Zhang, Qilong, Zeng, Boheng, Gao, Lianli, Liu, Xianglong, Zhang, Jian, and Song, Jingkuan

Subjects
Computer Science - Computer Vision and Pattern Recognition
Abstract

For black-box attacks, the gap between the substitute model and the victim model is usually large, which manifests as a weak attack performance. Motivated by the observation that the transferability of adversarial examples can be improved by attacking diverse models simultaneously, model augmentation methods which simulate different models by using transformed images are proposed. However, existing transformations for spatial domain do not translate to significantly diverse augmented models. To tackle this issue, we propose a novel spectrum simulation attack to craft more transferable adversarial examples against both normally trained and defense models. Specifically, we apply a spectrum transformation to the input and thus perform the model augmentation in the frequency domain. We theoretically prove that the transformation derived from frequency domain leads to a diverse spectrum saliency map, an indicator we proposed to reflect the diversity of substitute models. Notably, our method can be generally combined with existing attacks. Extensive experiments on the ImageNet dataset demonstrate the effectiveness of our method, \textit{e.g.}, attacking nine state-of-the-art defense models with an average success rate of \textbf{95.4\%}. Our code is available in \url{https://github.com/yuyang-long/SSA}., Comment: Accepted by ECCV 2022

Published
2022

Catalog

Books, media, physical & digital resources
See catalog results