arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2003.01872cs.CVcs.LGeess.IV
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生成模型的I型攻击

Type I Attack for Generative Models

Shanghai Jiao Tong University(上海交通大学);HuaWei Technologies Co.,Ltd(华为技术有限公司)

Chengjin Sun, Sizhe Chen, Jia Cai, Xiaolin Huang

摘要:

生成模型是一种流行的工具,有着广泛的应用。然而,它和分类器一样容易受到对抗性样本的影响。现有的攻击方法主要集中在通过对输入进行不可感知的扰动来生成对抗性样本,从而导致错误的结果。然而,我们关注攻击的另一个方面,即,通过显著的改变来欺骗模型。前者导致II型错误,后者导致I型错误。在本文中,我们提出了I型攻击的生成模型,如VAE和GAN。在VAE中给出的一个例子是,我们可以将原始图像显著地改变为无意义的图像,但它们的重建结果是相似的。为了实现I型攻击,我们通过增加输入空间中的距离来破坏原始攻击,同时保持输出相似,因为不同的输入可能对应于深度神经网络的属性的相似特征。实验结果表明,我们的攻击方法是有效的生成I型对抗性的大规模图像数据集上的生成模型的例子。

英文摘要:

Generative models are popular tools with a wide range of applications. Nevertheless, it is as vulnerable to adversarial samples as classifiers. The existing attack methods mainly focus on generating adversarial examples by adding imperceptible perturbations to input, which leads to wrong result. However, we focus on another aspect of attack, i.e., cheating models by significant changes. The former induces Type II error and the latter causes Type I error. In this paper, we propose Type I attack to generative models such as VAE and GAN. One example given in VAE is that we can change an original image significantly to a meaningless one but their reconstruction results are similar. To implement the Type I attack, we destroy the original one by increasing the distance in input space while keeping the output similar because different inputs may correspond to similar features for the property of deep neural network. Experimental results show that our attack method is effective to generate Type I adversarial examples for generative models on large-scale image datasets.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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