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

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Recommender systems, tool for predicting users' potential preferences by computing history data and users' interests, show an increasing importance in various Internet applications such as online shopping. As a well-known recommendation…

Cryptography and Security · Computer Science 2015-06-05 Zhigang Lu , Hong Shen

Probabilistic matrix factorization (PMF) plays a crucial role in recommendation systems. It requires a large amount of user data (such as user shopping records and movie ratings) to predict personal preferences, and thereby provides users…

Cryptography and Security · Computer Science 2018-10-22 Shun Zhang , Laixiang Liu , Zhili Chen , Hong Zhong

The increasing interest in user privacy is leading to new privacy preserving machine learning paradigms. In the Federated Learning paradigm, a master machine learning model is distributed to user clients, the clients use their locally…

Information Retrieval · Computer Science 2019-01-30 Muhammad Ammad-ud-din , Elena Ivannikova , Suleiman A. Khan , Were Oyomno , Qiang Fu , Kuan Eeik Tan , Adrian Flanagan

Matrix factorization is one of the most commonly used technologies in recommendation system. With the promotion of recommendation system in e-commerce shopping, online video and other aspects, distributed recommendation system has been…

Machine Learning · Computer Science 2020-08-19 Senci Ying

The Ising model, originally developed as a spin-glass model for ferromagnetic elements, has gained popularity as a network-based model for capturing dependencies in agents' outputs. Its increasing adoption in healthcare and the social…

Methodology · Statistics 2024-01-31 Abhinav Chakraborty , Anirban Chatterjee , Abhinandan Dalal

Fueled by its successful commercialization, the recommender system (RS) has gained widespread attention. However, as the training data fed into the RS models are often highly sensitive, it ultimately leads to severe privacy concerns,…

Cryptography and Security · Computer Science 2022-12-06 Hao Ren , Guowen Xu , Tianwei Zhang , Jianting Ning , Xinyi Huang , Hongwei Li , Rongxing Lu

In this work, we systematically explore the data privacy issues of dataset pruning in machine learning systems. Our findings reveal, for the first time, that even if data in the redundant set is solely used before model training, its…

Cryptography and Security · Computer Science 2024-11-26 Qi Li , Cheng-Long Wang , Yinzhi Cao , Di Wang

In Machine Learning scenarios, privacy is a crucial concern when models have to be trained with private data coming from users of a service, such as a recommender system, a location-based mobile service, a mobile phone text messaging…

Machine Learning · Computer Science 2020-07-20 Vito Walter Anelli , Yashar Deldjoo , Tommaso Di Noia , Antonio Ferrara

Serving personalized content on mobile devices has traditionally required pooling sensitive user data on centralized servers, a practice increasingly at odds with modern privacy expectations and geographical regulations. We present a…

Machine Learning · Computer Science 2026-05-29 Aasheesh Singh

Multi-interest candidate matching plays a pivotal role in personalized recommender systems, as it captures diverse user interests from their historical behaviors. Most existing methods utilize attention mechanisms to generate interest…

Information Retrieval · Computer Science 2025-02-14 Yankun Le , Haoran Li , Baoyuan Ou , Yingjie Qin , Zhixuan Yang , Ruilong Su , Fu Zhang

Computing the principal component (PC) of the adjacency matrix of an undirected graph has several applications ranging from identifying key vertices for influence maximization and controlling diffusion processes, to discovering densely…

Data Structures and Algorithms · Computer Science 2026-03-06 Alireza Khayatian , Anil Vullikanti , Aritra Konar

Sequential recommendation systems alleviate the problem of information overload, and have attracted increasing attention in the literature. Most prior works usually obtain an overall representation based on the user's behavior sequence,…

Information Retrieval · Computer Science 2022-08-12 Gaode Chen , Xinghua Zhang , Yanyan Zhao , Cong Xue , Ji Xiang

Multi-interest learning method for sequential recommendation aims to predict the next item according to user multi-faceted interests given the user historical interactions. Existing methods mainly consist of a multi-interest extractor that…

Information Retrieval · Computer Science 2024-04-30 Xue Dong , Xuemeng Song , Tongliang Liu , Weili Guan

Implicit authentication consists of a server authenticating a user based on the user's usage profile, instead of/in addition to relying on something the user explicitly knows (passwords, private keys, etc.). While implicit authentication…

Cryptography and Security · Computer Science 2015-03-03 Josep Domingo-Ferrer , Qianhong Wu , Alberto Blanco-Justicia

With the rapid development of short video platforms, recommendation systems have become key technologies for improving user experience and enhancing platform engagement. However, while short video recommendation systems leverage multimodal…

Information Retrieval · Computer Science 2025-04-15 Haowei Yang , Lei Fu , Qingyi Lu , Yue Fan , Tianle Zhang , Ruohan Wang

We propose PsiRec, a novel user preference propagation recommender that incorporates pseudo-implicit feedback for enriching the original sparse implicit feedback dataset. Three of the unique characteristics of PsiRec are: (i) it views…

Information Retrieval · Computer Science 2019-01-07 Yun He , Haochen Chen , Ziwei Zhu , James Caverlee

Federated recommender systems (FedRecs) have gained significant attention for their potential to protect user's privacy by keeping user privacy data locally and only communicating model parameters/gradients to the server. Nevertheless, the…

Information Retrieval · Computer Science 2024-02-01 Liang Qu , Wei Yuan , Ruiqi Zheng , Lizhen Cui , Yuhui Shi , Hongzhi Yin

The recommender system is one of the most promising ways to address the information overload problem in online systems. Based on the personal historical record, the recommender system can find interesting and relevant objects for the user…

Information Retrieval · Computer Science 2015-06-17 An Zeng , Alexandre Vidmer , Matus Medo , Yi-Cheng Zhang

Integrating Foundation Models (FMs) into recommendation systems is an emerging and promising research direction. However, centralized paradigms face growing pressure from privacy concerns and strict regulatory requirements. Federated…

Machine Learning · Computer Science 2026-05-08 Zhiwei Li , Guodong Long , Chunxu Zhang , Honglei Zhang , Jing Jiang , Chengqi Zhang

The initial interaction of a user with a recommender system is problematic because, in such a so-called cold start situation, the recommender system has very little information about the user, if any. Moreover, in collaborative filtering,…

Information Retrieval · Computer Science 2023-10-17 Noa Tuval , Alain Hertz , Tsvi Kuflik