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Related papers: FedDCSR: Federated Cross-domain Sequential Recomme…

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Federated learning (FL) aims to train models collaboratively across clients without sharing data for privacy-preserving. However, one major challenge is the data heterogeneity issue, which refers to the biased labeling preferences at…

Computer Vision and Pattern Recognition · Computer Science 2025-06-27 Huan Wang , Haoran Li , Huaming Chen , Jun Yan , Jiahua Shi , Jun Shen

Cross-domain recommendation (CDR) offers a promising solution to the data sparsity problem by enabling knowledge transfer across source and target domains. However, many recent CDR models overlook crucial issues such as privacy as well as…

Machine Learning · Computer Science 2024-11-05 Ziqi Yang , Zhaopeng Peng , Zihui Wang , Jianzhong Qi , Chaochao Chen , Weike Pan , Chenglu Wen , Cheng Wang , Xiaoliang Fan

Federated Learning (FL) deals with learning a central model (i.e. the server) in privacy-constrained scenarios, where data are stored on multiple devices (i.e. the clients). The central model has no direct access to the data, but only to…

Machine Learning · Computer Science 2021-05-03 Debora Caldarola , Massimiliano Mancini , Fabio Galasso , Marco Ciccone , Emanuele Rodolà , Barbara Caputo

Federated learning (FL) facilitates a privacy-preserving neural network training paradigm through collaboration between edge clients and a central server. One significant challenge is that the distributed data is not independently and…

Computer Vision and Pattern Recognition · Computer Science 2024-09-12 Yu Qiao , Huy Q. Le , Mengchun Zhang , Apurba Adhikary , Chaoning Zhang , Choong Seon Hong

Cross-Domain Sequential Recommendation (CDSR) aims to mine and transfer users' sequential preferences across different domains to alleviate the long-standing cold-start issue. Traditional CDSR models capture collaborative information…

Machine Learning · Computer Science 2024-06-06 Tingjia Shen , Hao Wang , Jiaqing Zhang , Sirui Zhao , Liangyue Li , Zulong Chen , Defu Lian , Enhong Chen

Cross-Domain Sequential Recommendation (CDSR) aims to en-hance recommendation quality by transferring knowledge across domains, offering effective solutions to data sparsity and cold-start issues. However, existing methods face three major…

Information Retrieval · Computer Science 2026-04-10 Xingzi Wang , Qingtian Bian , Hui Fang

Sequential recommendation (SR) aims to predict the subsequent behaviors of users by understanding their successive historical behaviors. Recently, some methods for SR are devoted to alleviating the data sparsity problem (i.e., limited…

Information Retrieval · Computer Science 2022-08-30 Ziyang Wang , Huoyu Liu , Wei Wei , Yue Hu , Xian-Ling Mao , Shaojian He , Rui Fang , Dangyang chen

This paper investigates Cross-Domain Sequential Recommendation (CDSR), a promising method that uses information from multiple domains (more than three) to generate accurate and diverse recommendations, and takes into account the sequential…

Artificial Intelligence · Computer Science 2023-11-23 Chung Park , Taesan Kim , Taekyoon Choi , Junui Hong , Yelim Yu , Mincheol Cho , Kyunam Lee , Sungil Ryu , Hyungjun Yoon , Minsung Choi , Jaegul Choo

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

Cross-domain sequential recommendation (CDSR) aims to address the data sparsity problems that exist in traditional sequential recommendation (SR) systems. The existing approaches aim to design a specific cross-domain unit that can transfer…

Information Retrieval · Computer Science 2024-06-06 Wujiang Xu , Xuying Ning , Wenfang Lin , Mingming Ha , Qiongxu Ma , Qianqiao Liang , Xuewen Tao , Linxun Chen , Bing Han , Minnan Luo

Cross-Domain Recommendation (CDR) and Cross-System Recommendations (CSR) are two of the promising solutions to address the long-standing data sparsity problem in recommender systems. They leverage the relatively richer information, e.g.,…

Machine Learning · Computer Science 2020-09-15 Feng Zhu , Yan Wang , Chaochao Chen , Guanfeng Liu , Mehmet Orgun , Jia Wu

Sequential Recommendation (SR) characterizes evolving patterns of user behaviors by modeling how users transit among items. However, the short interaction sequences limit the performance of existing SR. To solve this problem, we focus on…

Information Retrieval · Computer Science 2022-09-22 Xiaolin Zheng , Jiajie Su , Weiming Liu , Chaochao Chen

Cross-Domain Sequential Recommendation (CDSR) methods aim to tackle the data sparsity and cold-start problems present in Single-Domain Sequential Recommendation (SDSR). Existing CDSR works design their elaborate structures relying on…

Information Retrieval · Computer Science 2024-04-15 Wujiang Xu , Qitian Wu , Runzhong Wang , Mingming Ha , Qiongxu Ma , Linxun Chen , Bing Han , Junchi Yan

Social recommendations utilize social relations to enhance the representation learning for recommendations. Most social recommendation models unify user representations for the user-item interactions (collaborative domain) and social…

Information Retrieval · Computer Science 2023-10-04 Jiahao Wu , Wenqi Fan , Jingfan Chen , Shengcai Liu , Qing Li , Ke Tang

Cross-domain sequential recommendation is an important development direction of recommender systems. It combines the characteristics of sequential recommender systems and cross-domain recommender systems, which can capture the dynamic…

Information Retrieval · Computer Science 2024-01-30 Zhaohao Lin , Weike Pan , Zhong Ming

Cross-domain recommendation (CDR) is crucial for improving recommendation accuracy and generalization, yet traditional methods are often hindered by the reliance on shared user/item IDs, which are unavailable in most real-world scenarios.…

Information Retrieval · Computer Science 2025-11-18 Peiyu Hu , Wayne Lu , Jia Wang

Federated cross-domain recommendation (Federated CDR) aims to collaboratively learn personalized recommendation models across heterogeneous domains while preserving data privacy. Recently, large language model (LLM)-based recommendation…

Information Retrieval · Computer Science 2026-02-19 Xinrui He , Ting-Wei Li , Tianxin Wei , Xuying Ning , Xinyu He , Wenxuan Bao , Hanghang Tong , Jingrui He

Sequential recommender systems have made significant progress. Recently, due to increasing concerns about user data privacy, some researchers have implemented federated learning for sequential recommendation, a.k.a., Federated Sequential…

Information Retrieval · Computer Science 2024-06-11 Wei Yuan , Chaoqun Yang , Liang Qu , Quoc Viet Hung Nguyen , Guanhua Ye , Hongzhi Yin

Shared-account Cross-domain Sequential Recommendation (SCSR) is an emerging yet challenging task that simultaneously considers the shared-account and cross-domain characteristics in the sequential recommendation. Existing works on SCSR are…

Information Retrieval · Computer Science 2022-09-01 Lei Guo , Jinyu Zhang , Tong Chen , Xinhua Wang , Hongzhi Yin

Federated Learning (FL) offers a decentralized paradigm for collaborative model training without direct data sharing, yet it poses unique challenges for Domain Generalization (DG), including strict privacy constraints, non-i.i.d. local…

Machine Learning · Computer Science 2025-01-28 Sunny Gupta , Vinay Sutar , Varunav Singh , Amit Sethi