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Discovering user preferences across different domains is pivotal in cross-domain recommendation systems, particularly when platforms lack comprehensive user-item interactive data. The limited presence of shared users often hampers the…

Information Retrieval · Computer Science 2025-06-10 Zongyi Xiang , Yan Zhang , Lixin Duan , Hongzhi Yin , Ivor W. Tsang

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

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

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 recommendation (CDR) is one popular research topic in recommender systems. This paper focuses on a popular scenario for CDR where different domains share the same set of users but no overlapping items. The majority of recent…

Information Retrieval · Computer Science 2022-03-18 Xu Chen , Ya Zhang , Ivor Tsang , Yuangang Pan , Jingchao Su

In the real world, users always have multiple interests while surfing different services to enrich their daily lives, e.g., watching hot short videos/live streamings. To describe user interests precisely for a better user experience, the…

Information Retrieval · Computer Science 2025-03-18 Yu Liu , Hanbin Jiang , Lei Zhu , Yu Zhang , Yuqi Mao , Jiangxia Cao , Shuchao Pang

Cross-domain Recommendation (CR) is the task that tends to improve the recommendations in the sparse target domain by leveraging the information from other rich domains. Existing methods of cross-domain recommendation mainly focus on…

Information Retrieval · Computer Science 2024-01-17 Hao Liu , Lei Guo , Lei Zhu , Yongqiang Jiang , Min Gao , Hongzhi Yin

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

Unsupervised efficient domain adaptive retrieval aims to transfer knowledge from a labeled source domain to an unlabeled target domain, while maintaining low storage cost and high retrieval efficiency. However, existing methods typically…

Machine Learning · Computer Science 2025-05-21 Junyu Luo , Yusheng Zhao , Xiao Luo , Zhiping Xiao , Wei Ju , Li Shen , Dacheng Tao , Ming Zhang

Cross-domain Recommendation (CR) has been extensively studied in recent years to alleviate the data sparsity issue in recommender systems by utilizing different domain information. In this work, we focus on the more general Non-overlapping…

Information Retrieval · Computer Science 2023-04-11 Lei Guo , Chunxiao Wang , Xinhua Wang , Lei Zhu , Hongzhi Yin

Cross-domain recommendation (CDR) has emerged as a promising solution to the cold-start problem, faced by single-domain recommender systems. However, existing CDR models rely on complex neural architectures, large datasets, and significant…

Information Retrieval · Computer Science 2024-12-02 Ajay Krishna Vajjala , Dipak Meher , Ziwei Zhu , David S. Rosenblum

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

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

Recommender systems can automatically recommend users with items that they probably like. The goal of them is to model the user-item interaction by effectively representing the users and items. Existing methods have primarily learned the…

Information Retrieval · Computer Science 2024-04-30 Xue Dong , Xuemeng Song , Na Zheng , Yinwei Wei , Zhongzhou Zhao

A fundamental challenge for sequential recommenders is to capture the sequential patterns of users toward modeling how users transit among items. In many practical scenarios, however, there are a great number of cold-start users with only…

Information Retrieval · Computer Science 2021-07-15 Jianling Wang , Kaize Ding , James Caverlee

Learning accurate cross-domain preference mappings in the absence of overlapped users/items has presented a persistent challenge in Non-overlapping Cross-domain Recommendation (NOCDR). Despite the efforts made in previous studies to address…

Information Retrieval · Computer Science 2023-09-06 Jing Du , Zesheng Ye , Bin Guo , Zhiwen Yu , Lina Yao

Making accurate recommendations for cold-start users has been a longstanding and critical challenge for recommender systems (RS). Cross-domain recommendations (CDR) offer a solution to tackle such a cold-start problem when there is no…

Information Retrieval · Computer Science 2021-06-21 Lei Chen , Fajie Yuan , Jiaxi Yang , Xiangnan He , Chengming Li , Min Yang

Cross-Domain Recommendation (CDR) is a promising paradigm inspired by transfer learning to solve the cold-start problem in recommender systems. Existing state-of-the-art CDR methods train an explicit mapping function to transfer the…

Information Retrieval · Computer Science 2024-08-07 Guohang Zeng , Qian Zhang , Guangquan Zhang , Jie Lu

Cross-domain recommendation (CDR) plays a critical role in alleviating the sparsity and cold-start problem and substantially boosting the performance of recommender systems. Existing CDR methods prefer to either learn a common preference…

Information Retrieval · Computer Science 2024-08-02 Xiaofei Zhu , Yabo Yin , Li Wang

Cold-start issues have been more and more challenging for providing accurate recommendations with the fast increase of users and items. Most existing approaches attempt to solve the intractable problems via content-aware recommendations…

Information Retrieval · Computer Science 2022-04-04 Yan Zhang , Changyu Li , Ivor W. Tsang , Hui Xu , Lixin Duan , Hongzhi Yin , Wen Li , Jie Shao