A Data Augmentation-based Defense Method Against Adversarial Attacks in Neural Networks

• URL: http://arxiv.org/abs/2007.15290v1
• Date: Thu, 30 Jul 2020 08:06:53 GMT
• Title: A Data Augmentation-based Defense Method Against Adversarial Attacks in Neural Networks
• Authors: Yi Zeng, Han Qiu, Gerard Memmi, Meikang Qiu
• Abstract summary: We develop a lightweight defense method that can efficiently invalidate full whitebox adversarial attacks with the compatibility of real-life constraints. Our model can withstand advanced adaptive attack, namely BPDA with 50 rounds, and still helps the target model maintain an accuracy around 80 %, meanwhile constraining the attack success rate to almost zero.
• Score: 7.943024117353317
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Deep Neural Networks (DNNs) in Computer Vision (CV) are well-known to be vulnerable to Adversarial Examples (AEs), namely imperceptible perturbations added maliciously to cause wrong classification results. Such variability has been a potential risk for systems in real-life equipped DNNs as core components. Numerous efforts have been put into research on how to protect DNN models from being tackled by AEs. However, no previous work can efficiently reduce the effects caused by novel adversarial attacks and be compatible with real-life constraints at the same time. In this paper, we focus on developing a lightweight defense method that can efficiently invalidate full whitebox adversarial attacks with the compatibility of real-life constraints. From basic affine transformations, we integrate three transformations with randomized coefficients that fine-tuned respecting the amount of change to the defended sample. Comparing to 4 state-of-art defense methods published in top-tier AI conferences in the past two years, our method demonstrates outstanding robustness and efficiency. It is worth highlighting that, our model can withstand advanced adaptive attack, namely BPDA with 50 rounds, and still helps the target model maintain an accuracy around 80 %, meanwhile constraining the attack success rate to almost zero.

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