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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

Recently, there has been a surge of interest in Multi-Target Cross-Domain Recommendation (MTCDR), which aims to enhance recommendation performance across multiple domains simultaneously. Existing MTCDR methods primarily rely on…

Information Retrieval · Computer Science 2025-08-08 Jinqiu Jin , Yang Zhang , Fuli Feng , Xiangnan He

Multi-domain recommender systems benefit from cross-domain representation learning and positive knowledge transfer. Both can be achieved by introducing a specific modeling of input data (i.e. disjoint history) or trying dedicated training…

Information Retrieval · Computer Science 2023-02-23 Alejandro Ariza-Casabona , Bartlomiej Twardowski , Tri Kurniawan Wijaya

Data sparsity and cold-start problems are persistent challenges in recommendation systems. Cross-domain recommendation (CDR) is a promising solution that utilizes knowledge from the source domain to improve the recommendation performance in…

Information Retrieval · Computer Science 2023-11-07 Yanyu Chen , Yao Yao , Wai Kin Victor Chan , Li Xiao , Kai Zhang , Liang Zhang , Yun Ye

Conversational recommender system (CRS), which combines the techniques of dialogue system and recommender system, has obtained increasing interest recently. In contrast to traditional recommender system, it learns the user preference better…

Information Retrieval · Computer Science 2024-08-05 Yunwen Xia , Hui Fang , Jie Zhang , Chong Long

Cross-Domain Recommendation (CDR) and Cross-System Recommendation (CSR) have been proposed to improve the recommendation accuracy in a target dataset (domain/system) with the help of a source one with relatively richer information. However,…

Information Retrieval · Computer Science 2021-08-19 Feng Zhu , Yan Wang , Jun Zhou , Chaochao Chen , Longfei Li , Guanfeng Liu

Cross-domain recommendation (CDR) aims to leverage the correlation of users' behaviors in both the source and target domains to improve the user preference modeling in the target domain. Conventional CDR methods typically explore the…

Information Retrieval · Computer Science 2023-06-09 Haokai Ma , Ruobing Xie , Lei Meng , Xin Chen , Xu Zhang , Leyu Lin , Jie Zhou

The cold-start recommendation is an urgent problem in contemporary online applications. It aims to provide users whose behaviors are literally sparse with as accurate recommendations as possible. Many data-driven algorithms, such as the…

Information Retrieval · Computer Science 2021-10-19 Xiaowen Huang , Jitao Sang , Jian Yu , Changsheng Xu

Drug recommendation (DR) systems aim to support healthcare professionals in selecting appropriate medications based on patients' medical conditions. State-of-the-art approaches utilize deep learning techniques for improving DR, but fall…

Information Retrieval · Computer Science 2025-11-03 Yu Lin , Zhen Jia , Philipp Christmann , Xu Zhang , Shengdong Du , Tianrui Li

Cross-domain recommendation (CDR) can help customers find more satisfying items in different domains. Existing CDR models mainly use common users or mapping functions as bridges between domains but have very limited exploration in fully…

Information Retrieval · Computer Science 2022-06-28 Li Zhang , Yan Ge , Jun Ma , Jianmo Ni , Haiping Lu

Cross-Domain Recommendation (CDR) is an effective way to alleviate the cold-start problem. However, previous work severely ignores fairness and bias when learning the mapping function, which is used to obtain the representations for fresh…

Information Retrieval · Computer Science 2023-05-16 Jiakai Tang , Xu Chen , Xueyang Feng

Cold-start problem is still a very challenging problem in recommender systems. Fortunately, the interactions of the cold-start users in the auxiliary source domain can help cold-start recommendations in the target domain. How to transfer…

Information Retrieval · Computer Science 2021-12-21 Yongchun Zhu , Zhenwei Tang , Yudan Liu , Fuzhen Zhuang , Ruobing Xie , Xu Zhang , Leyu Lin , Qing He

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 recommendation (CDR) is an important method to improve recommender system performance, especially when observations in target domains are sparse. However, most existing cross-domain recommendations fail to fully utilize the…

Information Retrieval · Computer Science 2024-01-23 Yuhao Luo , Shiwei Ma , Mingjun Nie , Changping Peng , Zhangang Lin , Jingping Shao , Qianfang Xu

Traditional recommendation systems are faced with two long-standing obstacles, namely, data sparsity and cold-start problems, which promote the emergence and development of Cross-Domain Recommendation (CDR). The core idea of CDR is to…

Information Retrieval · Computer Science 2022-07-26 Tianzi Zang , Yanmin Zhu , Haobing Liu , Ruohan Zhang , Jiadi Yu

Click-Through Rate (CTR) prediction on cold users is a challenging task in recommender systems. Recent researches have resorted to meta-learning to tackle the cold-user challenge, which either perform few-shot user representation learning…

Information Retrieval · Computer Science 2022-10-31 Yanyan Shen , Lifan Zhao , Weiyu Cheng , Zibin Zhang , Wenwen Zhou , Kangyi Lin

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

Cross-domain recommendation (CDR) aims to address the persistent cold-start problem in Recommender Systems. Current CDR research concentrates on transferring cold-start users' information from the auxiliary domain to the target domain.…

Information Retrieval · Computer Science 2025-07-08 Fan Zhang , Jinpeng Chen , Huan Li , Senzhang Wang , Yuan Cao , Kaimin Wei , JianXiang He , Feifei Kou , Jinqing Wang

Cross-domain recommendation (CDR) aims to provide better recommendation results in the target domain with the help of the source domain, which is widely used and explored in real-world systems. However, CDR in the matching (i.e., candidate…

Information Retrieval · Computer Science 2022-06-22 Ruobing Xie , Qi Liu , Liangdong Wang , Shukai Liu , Bo Zhang , Leyu Lin

In addressing the persistent challenges of data-sparsity and cold-start issues in domain-expert recommender systems, Cross-Domain Recommendation (CDR) emerges as a promising methodology. CDR aims at enhancing prediction performance in the…

Information Retrieval · Computer Science 2024-09-10 Jiangxia Cao , Shen Wang , Gaode Chen , Rui Huang , Shuang Yang , Zhaojie Liu , Guorui Zhou