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Cross-domain recommendation (CDR) methods are proposed to tackle the sparsity problem in click through rate (CTR) estimation. Existing CDR methods directly transfer knowledge from the source domains to the target domain and ignore the…

Machine Learning · Computer Science 2024-11-15 Ke Xu , Ziliang Wang , Wei Zheng , Yuhao Ma , Chenglin Wang , Nengxue Jiang , Cai Cao

Cross-domain Recommendation systems leverage multi-domain user interactions to improve performance, especially in sparse data or new user scenarios. However, CDR faces challenges such as effectively capturing user preferences and avoiding…

Information Retrieval · Computer Science 2024-10-10 Junxiong Tong , Mingjia Yin , Hao Wang , Qiushi Pan , Defu Lian , Enhong Chen

Cross-domain recommendation (CDR) addresses the data sparsity and cold-start problems in the target domain by leveraging knowledge from data-rich source domains. However, existing CDR methods often rely on domain-specific features or…

Information Retrieval · Computer Science 2026-04-14 Chunxu Zhang , Shanqiang Huang , Zijian Zhang , Jiahong Liu , Linsong Yu , Ruiqi Wan , Bo Yang , Irwin King

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

The increasing availability and diversity of multimodal data in recommender systems offer new avenues for enhancing recommendation accuracy and user satisfaction. However, these systems must contend with high-dimensional, sparse user-item…

Information Retrieval · Computer Science 2024-12-04 Yasser Khalafaoui , Martino Lovisetto , Basarab Matei , Nistor Grozavu

The cold-start problem is a long-standing challenge in recommender systems due to the lack of user-item interactions, which significantly hurts the recommendation effect over new users and items. Recently, meta-learning based methods…

Information Retrieval · Computer Science 2024-05-07 Yuxiang Shi , Yue Ding , Bo Chen , Yuyang Huang , Yule Wang , Ruiming Tang , Dong Wang

Online advertising in recommendation platforms has gained significant attention, with a predominant focus on channel recommendation and budget allocation strategies. However, current offline reinforcement learning (RL) methods face…

Information Retrieval · Computer Science 2025-07-10 Langming Liu , Wanyu Wang , Chi Zhang , Bo Li , Hongzhi Yin , Xuetao Wei , Wenbo Su , Bo Zheng , Xiangyu Zhao

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

In modern recommender systems, especially in e-commerce, predicting multiple targets such as click-through rate (CTR) and post-view conversion rate (CTCVR) is common. Multi-task recommender systems are increasingly popular in both research…

Information Retrieval · Computer Science 2024-08-21 Yue Ding , Yanbiao Ji , Xun Cai , Xin Xin , Yuxiang Lu , Suizhi Huang , Chang Liu , Xiaofeng Gao , Tsuyoshi Murata , Hongtao Lu

As user behavior data becomes increasingly scattered across different platforms, achieving cross-domain knowledge fusion while preserving privacy has become a critical issue in recommender systems. Existing PPCDR methods usually rely on…

Information Retrieval · Computer Science 2026-05-07 Lei Guo , Ting Yang , Xu Yu , Xiaohui Han , Guiyuan Jiang , Hui Liu

Cross-market recommendation (CMR) aims to enhance recommendation performance across multiple markets. Due to its inherent characteristics, i.e., data isolation, non-overlapping users, and market heterogeneity, CMR introduces unique…

Information Retrieval · Computer Science 2026-04-16 Jundong Chen , Honglei Zhang , Xiangmou Qu , Haoxuan Li , Han Yu , Yidong Li

Large-scale e-commercial platforms in the real-world usually contain various recommendation scenarios (domains) to meet demands of diverse customer groups. Multi-Domain Recommendation (MDR), which aims to jointly improve recommendations on…

Information Retrieval · Computer Science 2023-03-08 Linhao Luo , Yumeng Li , Buyu Gao , Shuai Tang , Sinan Wang , Jiancheng Li , Tanchao Zhu , Jiancai Liu , Zhao Li , Shirui Pan

Cross-Domain Recommendation (CDR) have received widespread attention due to their ability to utilize rich information across domains. However, most existing CDR methods assume an ideal static condition that is not practical in industrial…

Information Retrieval · Computer Science 2024-10-16 Heyuan Huang , Xingyu Lou , Chaochao Chen , Pengxiang Cheng , Yue Xin , Chengwei He , Xiang Liu , Jun Wang

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) 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

Most deep reinforcement learning algorithms are data inefficient in complex and rich environments, limiting their applicability to many scenarios. One direction for improving data efficiency is multitask learning with shared neural network…

Limited computing resources of internet-of-things (IoT) nodes incur prohibitive latency in processing input data. This triggers new research opportunities toward task offloading systems where edge servers handle intensive computations of…

Information Theory · Computer Science 2022-07-29 Sangwon Hwang , Hoon Lee , Juseong Park , Inkyu Lee

Targets search and detection encompasses a variety of decision problems such as coverage, surveillance, search, observing and pursuit-evasion along with others. In this paper we develop a multi-agent deep reinforcement learning (MADRL)…

Robotics · Computer Science 2021-03-18 Roi Yehoshua , Juan Heredia-Juesas , Yushu Wu , Christopher Amato , Jose Martinez-Lorenzo

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 Recommendation (CDR) as one of the effective techniques in alleviating the data sparsity issues has been widely studied in recent years. However, previous works may cause domain privacy leakage since they necessitate the…

Information Retrieval · Computer Science 2024-05-13 Lei Guo , Ziang Lu , Junliang Yu , Nguyen Quoc Viet Hung , Hongzhi Yin