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Recommender systems have been widely deployed in many real-world applications, but usually suffer from the long-standing user cold-start problem. As a promising way, Cross-Domain Recommendation (CDR) has attracted a surge of interest, which…

Information Retrieval · Computer Science 2022-04-01 Jiangxia Cao , Jiawei Sheng , Xin Cong , Tingwen Liu , Bin Wang

Cross domain recommender system constitutes a powerful method to tackle the cold-start and sparsity problem by aggregating and transferring user preferences across multiple category domains. Therefore, it has great potential to improve…

Information Retrieval · Computer Science 2021-06-08 Pan Li , Zhichao Jiang , Maofei Que , Yao Hu , Alexander Tuzhilin

Recent cross-domain recommendation (CDR) studies assume that disentangled domain-shared and domain-specific user representations can mitigate domain gaps and facilitate effective knowledge transfer. However, achieving perfect…

Information Retrieval · Computer Science 2024-11-27 Jing Du , Zesheng Ye , Bin Guo , Zhiwen Yu , Jia Wu , Jian Yang , Michael Sheng , Lina Yao

Click Through Rate (CTR) prediction plays an essential role in recommender systems and online advertising. It is crucial to effectively model feature interactions to improve the prediction performance of CTR models. However, existing…

Information Retrieval · Computer Science 2023-11-09 Fangye Wang , Hansu Gu , Dongsheng Li , Tun Lu , Peng Zhang , Ning Gu

Collaborative filtering (CF) models have demonstrated remarkable performance in recommender systems, which represent users and items as embedding vectors. Recently, due to the powerful modeling capability of graph neural networks for…

Information Retrieval · Computer Science 2024-11-05 Hao Chen , Yuanchen Bei , Wenbing Huang , Shengyuan Chen , Feiran Huang , Xiao Huang

Cross-domain recommendation (CDR) has been proven as a promising way to tackle the user cold-start problem, which aims to make recommendations for users in the target domain by transferring the user preference derived from the source…

Information Retrieval · Computer Science 2024-06-13 Xiaodong Li , Jiawei Sheng , Jiangxia Cao , Wenyuan Zhang , Quangang Li , Tingwen Liu

Cross-domain sequential recommendation (CDSR) shifts the modeling of user preferences from flat to stereoscopic by integrating and learning interaction information from multiple domains at different granularities (ranging from…

Information Retrieval · Computer Science 2024-08-27 Shu Chen , Zitao Xu , Weike Pan , Qiang Yang , Zhong Ming

Cross-Domain Sequential Recommendation (CDSR) aims to predict future interactions based on user's historical sequential interactions from multiple domains. Generally, a key challenge of CDSR is how to mine precise cross-domain user…

Information Retrieval · Computer Science 2023-04-11 Jiangxia Cao , Xin Cong , Jiawei Sheng , Tingwen Liu , Bin Wang

A recommender system predicts users' potential interests in items, where the core is to learn user/item embeddings. Nevertheless, it suffers from the data-sparsity issue, which the cross-domain recommendation can alleviate. However, most…

Information Retrieval · Computer Science 2021-11-17 Chen Wang , Yueqing Liang , Zhiwei Liu , Tao Zhang , Philip S. Yu

Cross-domain recommendation (CDR) is a task that aims to improve the recommendation performance in a target domain by leveraging the information from source domains. Contrastive learning methods have been widely adopted among intra-domain…

Information Retrieval · Computer Science 2025-02-25 Heng Chang , Liang Gu , Cheng Hu , Zhinan Zhang , Hong Zhu , Yuhui Xu , Yuan Fang , Zhen Chen

Cross-domain Recommendation (CDR) exploits multi-domain correlations to alleviate data sparsity. As a core task within this field, inter-domain recommendation focuses on predicting preferences for users who interact in a source domain but…

Information Retrieval · Computer Science 2026-04-08 Ziang Lu , Lei Sang , Lin Mu , Yiwen Zhang

Cross domain recommender systems have been increasingly valuable for helping consumers identify the most satisfying items from different categories. However, previously proposed cross-domain models did not take into account bidirectional…

Information Retrieval · Computer Science 2019-10-14 Pan Li , Alexander Tuzhilin

Cross-domain recommendation (CDR) has been increasingly explored to address data sparsity and cold-start issues. However, recent approaches typically disentangle domain-invariant features shared between source and target domains, as well as…

Information Retrieval · Computer Science 2026-01-27 Junyou He , Lixi Deng , Huichao Guo , Ye Tang , Yong Li , Sulong Xu

Cross-domain sequential recommendation (CDSR) aims to align heterogeneous user behavior sequences collected from different domains. While cross-attention is widely used to enhance alignment and improve recommendation performance, its…

An increasing number of retailers are expanding their channels to the offline and online domains, transforming them into multi-channel retailers. This transition emphasizes the need for cross-channel recommendations. Given that each retail…

Information Retrieval · Computer Science 2024-07-19 Yijin Choi , Jongkyung Shin , Chiehyeon Lim

Cross-Domain Sequential Recommendation (CDSR) is a hot topic in sequence-based user interest modeling, which aims at utilizing a single model to predict the next items for different domains. To tackle the CDSR, many methods are focused on…

Information Retrieval · Computer Science 2024-10-18 Haipeng Li , Jiangxia Cao , Yiwen Gao , Yunhuai Liu , Shuchao Pang

Shared-account Cross-domain Sequential Recommendation (SCSR) task aims to recommend the next item via leveraging the mixed user behaviors in multiple domains. It is gaining immense research attention as more and more users tend to sign up…

Information Retrieval · Computer Science 2022-09-09 Lei Guo , Jinyu Zhang , Li Tang , Tong Chen , Lei Zhu , Hongzhi Yin

Cross-domain recommendation (CDR) methods predominantly leverage overlapping users to transfer knowledge from a source domain to a target domain. However, through empirical studies, we uncover a critical bias inherent in these approaches:…

Information Retrieval · Computer Science 2025-07-24 Weixin Chen , Yuhan Zhao , Li Chen , Weike Pan

In the past decade, with the development of big data technology, an increasing amount of patient information has been stored as electronic health records (EHRs). Leveraging these data, various doctor recommendation systems have been…

Information Retrieval · Computer Science 2022-07-14 Luning Bi , Yunlong Wang , Fan Zhang , Zhuqing Liu , Yong Cai , Emily Zhao

Cross-Domain Sequential Recommendation (CDSR) improves recommendation performance by utilizing information from multiple domains, which contrasts with Single-Domain Sequential Recommendation (SDSR) that relies on a historical interaction…

Information Retrieval · Computer Science 2024-07-25 Chung Park , Taesan Kim , Hyungjun Yoon , Junui Hong , Yelim Yu , Mincheol Cho , Minsung Choi , Jaegul Choo