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Related papers: PRSI: Privacy-Preserving Recommendation Model Base…

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Recommendation systems make predictions chiefly based on users' historical interaction data (e.g., items previously clicked or purchased). There is a risk of privacy leakage when collecting the users' behavior data for building the…

Information Retrieval · Computer Science 2022-09-28 Fan Liu , Zhiyong Cheng , Huilin Chen , Yinwei Wei , Liqiang Nie , Mohan Kankanhalli

Cross-domain recommendation (CDR) aims to improve recommendation accuracy in sparse domains by transferring knowledge from data-rich domains. However, existing CDR approaches often assume that user-item interaction data across domains is…

Information Retrieval · Computer Science 2025-05-16 Li Wang , Qiang Wu , Min Xu

Machine learning methods allow us to make recommendations to users in applications across fields including entertainment, dating, and commerce, by exploiting similarities in users' interaction patterns. However, in domains that demand…

Information Retrieval · Computer Science 2020-03-03 Mónica Ribero , Jette Henderson , Sinead Williamson , Haris Vikalo

In the era of information explosion, Recommender Systems (RS) are essential for alleviating information overload and providing personalized user experiences. Recent advances in diffusion-based generative recommenders have shown promise in…

Information Retrieval · Computer Science 2025-11-18 Chengyi Liu , Xiao Chen , Shijie Wang , Wenqi Fan , Qing Li

This paper proposes a new recommendation system preserving both privacy and utility. It relies on the local differential privacy (LDP) for the browsing user to transmit his noisy preference profile, as perturbed Bloom filters, to the…

Cryptography and Security · Computer Science 2021-09-24 Seryne Rahali , Maryline Laurent , Souha Masmoudi , Charles Roux , Brice Mazeau

Federated Recommender Systems (FedRecs) are considered privacy-preserving techniques to collaboratively learn a recommendation model without sharing user data. Since all participants can directly influence the systems by uploading…

Information Retrieval · Computer Science 2023-04-18 Wei Yuan , Quoc Viet Hung Nguyen , Tieke He , Liang Chen , Hongzhi Yin

Federated recommender system (FedRec) has emerged as a solution to protect user data through collaborative training techniques. A typical FedRec involves transmitting the full model and entire weight updates between edge devices and the…

Cryptography and Security · Computer Science 2025-06-10 Peihua Mai , Youlong Ding , Ziyan Lyu , Minxin Du , Yan Pang

Prevention of stroke with its associated risk factors has been one of the public health priorities worldwide. Emerging artificial intelligence technology is being increasingly adopted to predict stroke. Because of privacy concerns, patient…

Machine Learning · Computer Science 2020-12-16 Ce Ju , Ruihui Zhao , Jichao Sun , Xiguang Wei , Bo Zhao , Yang Liu , Hongshan Li , Tianjian Chen , Xinwei Zhang , Dashan Gao , Ben Tan , Han Yu , Chuning He , Yuan Jin

Cross-domain Recommendation (CDR) as one of the effective techniques in alleviating the data sparsity issues has been widely studied in recent years. However, previous works may cause domain privacy leakage since they necessitate the…

Information Retrieval · Computer Science 2024-05-13 Lei Guo , Ziang Lu , Junliang Yu , Nguyen Quoc Viet Hung , Hongzhi Yin

Recommender systems have become a pervasive part of our daily online experience, and are one of the most widely used applications of artificial intelligence and machine learning. Therefore, regulations and requirements for trustworthy…

Information Retrieval · Computer Science 2024-07-01 Dominik Kowald

Nowadays, privacy preserving machine learning has been drawing much attention in both industry and academy. Meanwhile, recommender systems have been extensively adopted by many commercial platforms (e.g. Amazon) and they are mainly built…

Machine Learning · Computer Science 2020-03-06 Chaochao Chen , Liang Li , Bingzhe Wu , Cheng Hong , Li Wang , Jun Zhou

Due to the highly sensitive nature of certain data in cross-border sharing, collaborative cross-border recommendations and data sharing are often subject to stringent privacy protection regulations, resulting in insufficient data for model…

Machine Learning · Computer Science 2025-05-27 Zhizhong Tan , Jiexin Zheng , Xingxing Yang , Chi Zhang , Weiping Deng , Wenyong Wang

Recently, recommender systems have achieved promising performances and become one of the most widely used web applications. However, recommender systems are often trained on highly sensitive user data, thus potential data leakage from…

Cryptography and Security · Computer Science 2021-09-17 Minxing Zhang , Zhaochun Ren , Zihan Wang , Pengjie Ren , Zhumin Chen , Pengfei Hu , Yang Zhang

Sequential recommendation has attracted a lot of attention from both academia and industry, however the privacy risks associated to gathering and transferring users' personal interaction data are often underestimated or ignored. Existing…

Information Retrieval · Computer Science 2024-01-10 Wei Wang , Yujie Lin , Pengjie Ren , Zhumin Chen , Tsunenori Mine , Jianli Zhao , Qiang Zhao , Moyan Zhang , Xianye Ben , Yujun Li

Matrix factorization is a popular method to build a recommender system. In such a system, existing users and items are associated to a low-dimension vector called a profile. The profiles of a user and of an item can be combined (via inner…

Cryptography and Security · Computer Science 2018-12-04 Fabrice Benhamouda , Marc Joye

In the vast landscape of internet information, recommender systems (RecSys) have become essential for guiding users through a sea of choices aligned with their preferences. These systems have applications in diverse domains, such as news…

Information Retrieval · Computer Science 2024-08-01 Liangwei Yang , Zhiwei Liu , Jianguo Zhang , Rithesh Murthy , Shelby Heinecke , Huan Wang , Caiming Xiong , Philip S. Yu

Large Language Model (LLM)-based recommendation systems leverage powerful language models to generate personalized suggestions by processing user interactions and preferences. Unlike traditional recommendation systems that rely on…

Information Retrieval · Computer Science 2025-05-05 Tina Khezresmaeilzadeh , Jiang Zhang , Dimitrios Andreadis , Konstantinos Psounis

Federated recommendation applies federated learning techniques in recommendation systems to help protect user privacy by exchanging models instead of raw user data between user devices and the central server. Due to the heterogeneity in…

Information Retrieval · Computer Science 2022-08-22 Sichun Luo , Yuanzhang Xiao , Linqi Song

With increasing frequency of high-profile privacy breaches in various online platforms, users are becoming more concerned about their privacy. And recommender system is the core component of online platforms for providing personalized…

Cryptography and Security · Computer Science 2024-01-31 Wentao Hu , Hui Fang

Large language models (LLMs) have shown promising potential for next Point-of-Interest (POI) recommendation. However, existing methods only perform direct zero-shot prompting, leading to ineffective extraction of user preferences,…

Information Retrieval · Computer Science 2024-12-12 Ziqing Wu , Zhu Sun , Dongxia Wang , Lu Zhang , Jie Zhang , Yew Soon Ong