Journal of Applied Sciences ›› 2020, Vol. 38 ›› Issue (6): 986-994.doi: 10.3969/j.issn.0255-8297.2020.06.015

• Signal and Information Processing • Previous Articles    

Improved Method to Craft Universal Perturbations Based on Fast Feature Fool

WEI Jianjie, Lü Donghui, LU Xiaofeng, SUN Guangling   

  1. School of Communication and Information Engineering, Shanghai University, Shanghai 200444, China
  • Received:2020-03-10 Published:2020-12-08

Abstract: Although deep neural networks have been widely applied in recent years, they are readily fooled by adversarial input perturbations which are imperceptible to humans. Such vulnerability to adversarial attacks has imposed threats for system deployment in security-crucial setting, thus it is necessary to study the risky generation method of perturbations to boost the anti-risk capability. As a universal perturbation, fast feature fool (FFF) is an effective attacking method for visual tasks. Beyond solely mixing the convolutional layer's output irrespective of the input activation status, this paper improves the FFF method by maximizing the feature difference between the input image and corresponding adversarial image during which the contributions of multiple convolutional layers are weighted differently. Experimental results demonstrate that the improved FFF actually has obtained higher success attacking rate and stronger cross-model transfer ability than the original one.

Key words: deep neural networks, universal perturbations, fast feature fool (FFF), feature difference

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