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AutoZOOM: Autoencoder-Based Zeroth Order Optimization Method for Attacking Black-Box Neural Networks

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Tu, Chun-Chen, Ting, Paishun, Chen, Pin-Yu, Liu, Sijia, Zhang, Huan, Yi, Jinfeng, Hsieh, Cho-Jui, Cheng, Shin-Ming·2019·Proceedings of the AAAI Conference on Artificial Intelligence

Abstract

Recent studies have shown that adversarial examples in state-of-the-art image classifiers trained by deep neural networks (DNN) can be easily generated when the target model is transparent to an attacker, known as the white-box setting. However, when attacking a deployed machine learning service, one can only acquire the input-output correspondences of the target model; this is the so-called black-box attack setting. The major drawback of existing black-box attacks is the need for excessive model queries, which may give a false sense of model robustness due to inefficient query designs. To bridge this gap, we propose a generic framework for query-efficient blackbox attacks. Our framework, AutoZOOM, which is short for Autoencoder-based Zeroth Order Optimization Method, has two novel building blocks towards efficient black-box attacks: (i) an adaptive random gradient estimation strategy to balance query counts and distortion, and (ii) an autoencoder that is either trained offline with unlabeled data or a bilinear resizing operation for attack acceleration. Experimental results suggest that, by applying AutoZOOM to a state-of-the-art black-box attack (ZOO), a significant reduction in model queries can be achieved without sacrificing the attack success rate and the visual quality of the resulting adversarial examples. In particular, when compared to the standard ZOO method, AutoZOOM can consistently reduce the mean query counts in finding successful adversarial examples (or reaching the same distortion level) by at least 93% on MNIST, CIFAR-10 and ImageNet datasets, leading to novel insights on adversarial robustness.

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Metadata

Authors
Tu, C.-C., Ting, P., Chen, P.-Y., Liu, S., Zhang, H., Yi, J., Hsieh, C.-J., & Cheng, S.-M.
Venue
Proceedings of the AAAI Conference on Artificial Intelligence
Published
2019-07-17
Volume
33
Issue
01
Pages
742-749
ISSN
  • 2159-5399 (ISSN-L)
  • 2374-3468
OpenAlex
W2964205597
Cited by
361
References
25
FWCI
19.63
Type
conference paper
Language
en
Open access
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CoChat. (2026). Citation check: AutoZOOM: Autoencoder-Based Zeroth Order Optimization Method for Attacking Black-Box Neural Networks. https://app.cochat.ai/papers/10.1609/aaai.v33i01.3301742
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Tu, C.-C., Ting, P., Chen, P.-Y., Liu, S., Zhang, H., Yi, J., Hsieh, C.-J., & Cheng, S.-M. (2019). AutoZOOM: Autoencoder-Based Zeroth Order Optimization Method for Attacking Black-Box Neural Networks. Proceedings of the AAAI Conference on Artificial Intelligence. https://doi.org/10.1609/aaai.v33i01.3301742

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