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With the widespread adoption of information systems, recommender systems are widely used for better user experience. Collaborative filtering is a popular approach in implementing recommender systems. Yet, collaborative filtering methods are…

Information Retrieval · Computer Science 2019-08-20 Sapumal Ahangama , Danny Chiang-Choon Poo

Cross-domain recommendation (CDR), aiming to extract and transfer knowledge across domains, has attracted wide attention for its efficacy in addressing data sparsity and cold-start problems. Despite significant advances in representation…

Information Retrieval · Computer Science 2024-04-02 Luankang Zhang , Hao Wang , Suojuan Zhang , Mingjia Yin , Yongqiang Han , Jiaqing Zhang , Defu Lian , Enhong Chen

This work explores unifying knowledge enhanced recommendation with multi-domain recommendation systems in a conversational AI assistant application. Multi-domain recommendation leverages users' interactions in previous domains to improve…

Information Retrieval · Computer Science 2025-03-26 Elan Markowitz , Ziyan Jiang , Fan Yang , Xing Fan , Tony Chen , Greg Ver Steeg , Aram Galstyan

Cross-domain sequential recommendation is the task of predict the next item that the user is most likely to interact with based on past sequential behavior from multiple domains. One of the key challenges in cross-domain sequential…

Information Retrieval · Computer Science 2020-12-08 Muyang Ma , Pengjie Ren , Zhumin Chen , Zhaochun Ren , Lifan Zhao , Jun Ma , Maarten de Rijke

Cross-domain recommendation can alleviate the data sparsity problem in recommender systems. To transfer the knowledge from one domain to another, one can either utilize the neighborhood information or learn a direct mapping function.…

Machine Learning · Computer Science 2019-10-21 Zhiwei Liu , Lei Zheng , Jiawei Zhang , Jiayu Han , Philip S. Yu

Cross-domain recommender (CDR) systems aim to transfer knowledge from data-rich domains to data-sparse ones, alleviating sparsity and cold-start issues present in conventional single-domain recommenders. However, many CDR approaches rely on…

Information Retrieval · Computer Science 2026-03-03 Ziyin Xiao , Toyotaro Suzumura

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) has been proven as a promising way to alleviate the cold-start issue, in which the most critical problem is how to draw an informative user representation in the target domain via the transfer of user…

Information Retrieval · Computer Science 2025-01-22 Xiaodong Li , Hengzhu Tang , Jiawei Sheng , Xinghua Zhang , Li Gao , Suqi Cheng , Dawei Yin , Tingwen Liu

With the proliferation of social media platforms and e-commerce sites, several cross-domain collaborative filtering strategies have been recently introduced to transfer the knowledge of user preferences across domains. The main challenge of…

Information Retrieval · Computer Science 2019-08-20 Dimitrios Rafailidis

Bundle recommendation aims to recommend a bundle of related items to users, which can satisfy the users' various needs with one-stop convenience. Recent methods usually take advantage of both user-bundle and user-item interactions…

Information Retrieval · Computer Science 2023-01-18 Yunshan Ma , Yingzhi He , An Zhang , Xiang Wang , Tat-Seng Chua

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) 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

A cross-domain recommendation has shown promising results in solving data-sparsity and cold-start problems. Despite such progress, existing methods focus on domain-shareable information (overlapped users or same contexts) for a knowledge…

Information Retrieval · Computer Science 2023-04-13 Yoonhyuk Choi , Jiho Choi , Taewook Ko , Hyungho Byun , Chong-Kwon Kim

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

Cross-Domain Recommendation (CDR) has been popularly studied to utilize different domain knowledge to solve the cold-start problem in recommender systems. Most of the existing CDR models assume that both the source and target domains share…

Information Retrieval · Computer Science 2022-05-30 Weiming Liu , Xiaolin Zheng , Mengling Hu , 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

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

Deep learning-based recommender systems may lead to over-fitting when lacking training interaction data. This over-fitting significantly degrades recommendation performances. To address this data sparsity problem, cross-domain recommender…

Information Retrieval · Computer Science 2022-11-08 Zhi Li , Daichi Amagata , Yihong Zhang , Takahiro Hara , Shuichiro Haruta , Kei Yonekawa , Mori Kurokawa

Addressing the challenges related to data sparsity, cold-start problems, and diversity in recommendation systems is both crucial and demanding. Many current solutions leverage knowledge graphs to tackle these issues by combining both…

Information Retrieval · Computer Science 2024-03-28 Yejin Kim , Scott Rome , Kevin Foley , Mayur Nankani , Rimon Melamed , Javier Morales , Abhay Yadav , Maria Peifer , Sardar Hamidian , H. Howie Huang

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