Deep Leakage From Horizontal Federated Sequential Recommender Systems

被引:0
|
作者
Guo, Kaifeng [1 ]
Xie, Kesheng [1 ]
Shi, Zian [1 ]
Gao, Rongjian [1 ]
机构
[1] Fuzhou Univ, Maynooth Int Engn Coll, Fuzhou 350108, Peoples R China
来源
IEEE ACCESS | 2024年 / 12卷
关键词
Computational modeling; Recommender systems; Data models; Training; Servers; Differential privacy; Accuracy; Federated learning; Privacy breach; Predictive models; Shared gradients; privacy safeguarding; model parameters; recommendation systems; defensive measures; deep learning; artificial intelligence;
D O I
10.1109/ACCESS.2024.3498699
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Shared gradients are extensively utilized for safeguarding the privacy of training data. However, an increasing body of research is uncovering that the gradients or model parameters transmitted in distributed systems may also leak users' private information. A majority of these studies are predicated on intercepting the data transmitted by individual users to derive their private information. A smaller portion of research can extrapolate a multitude of users' private data through the average gradients passed by the server. These investigations have analyzed information leakage in image and text domains, yet have not explored the leakage issues inherent within recommendation systems operating in distributed environments. Furthermore, the impact of batch size and model parameters on the degree of leakage has not been sufficiently analyzed. This paper proposes that within recommendation systems, it is feasible to infer the encapsulated user privacy data by receiving average gradients or model parameters provided by the server. Additionally, the paper evaluates the extent to which various parameters within the system impact the leakage and presents corresponding defensive measures while assessing their efficacy.
引用
收藏
页码:173037 / 173046
页数:10
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