arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2006.07934cs.LGcs.CRcs.IR
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基于强化学习的交互式推荐系统的对抗攻击与检测

Adversarial Attacks and Detection on Reinforcement Learning-Based Interactive Recommender Systems

University of New South Wales(新南威尔士大学);University of Technology Sydney(悉尼科技大学);University of Adelaide(阿德莱德大学)

Yuanjiang Cao, Xiaocong Chen, Lina Yao, Xianzhi Wang, Wei Emma Zhang

摘要:

对抗攻击对在早期阶段检测对抗攻击提出了重大挑战。我们提出了基于强化学习的交互式推荐系统的攻击不可知检测。我们首先制作对抗性示例以显示其不同的分布,然后通过基于精心制作的数据的基于深度学习的分类器检测潜在的攻击来增强推荐系统。最后,我们研究了对抗性示例的攻击强度和频率,并使用多种制作方法在标准数据集上评估我们的模型。实验结果表明,大多数对抗攻击都是有效的,攻击强度和攻击频率对攻击性能都有影响。策略定时攻击仅需1/3 ~ 1/2的攻击频率就能达到相当的攻击性能。此外,我们的黑盒检测器训练与一个手工方法具有推广能力超过几个手工方法。

英文摘要:

Adversarial attacks pose significant challenges for detecting adversarial attacks at an early stage. We propose attack-agnostic detection on reinforcement learning-based interactive recommendation systems. We first craft adversarial examples to show their diverse distributions and then augment recommendation systems by detecting potential attacks with a deep learning-based classifier based on the crafted data. Finally, we study the attack strength and frequency of adversarial examples and evaluate our model on standard datasets with multiple crafting methods. Our extensive experiments show that most adversarial attacks are effective, and both attack strength and attack frequency impact the attack performance. The strategically-timed attack achieves comparative attack performance with only 1/3 to 1/2 attack frequency. Besides, our black-box detector trained with one crafting method has the generalization ability over several crafting methods.

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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