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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…

信息检索 · 计算机科学 2021-06-21 Lei Chen , Fajie Yuan , Jiaxi Yang , Xiangnan He , Chengming Li , Min Yang

Cross Domain Recommendation (CDR) has been popularly studied to alleviate the cold-start and data sparsity problem commonly existed in recommender systems. CDR models can improve the recommendation performance of a target domain by…

机器学习 · 计算机科学 2022-02-11 Chaochao Chen , Huiwen Wu , Jiajie Su , Lingjuan Lyu , Xiaolin Zheng , Li Wang

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…

信息检索 · 计算机科学 2023-04-11 Jiangxia Cao , Xin Cong , Jiawei Sheng , 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…

信息检索 · 计算机科学 2022-03-18 Xu Chen , Ya Zhang , Ivor Tsang , Yuangang Pan , Jingchao Su

Recommender systems frequently encounter data sparsity issues, particularly when addressing cold-start scenarios involving new users or items. Multi-source cross-domain recommendation (CDR) addresses these challenges by transferring…

信息检索 · 计算机科学 2025-10-07 Lili Xie , Yi Zhang , Ruihong Qiu , Jiajun Liu , Sen Wang

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,…

信息检索 · 计算机科学 2021-08-19 Feng Zhu , Yan Wang , Jun Zhou , Chaochao Chen , Longfei Li , Guanfeng Liu

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…

信息检索 · 计算机科学 2021-11-17 Chen Wang , Yueqing Liang , Zhiwei Liu , Tao Zhang , Philip S. Yu

Cold-start cross-domain recommender (CDR) systems predict a user's preferences in a target domain using only their source-domain behavior, yet existing CDR models either map opaque embeddings or rely on post-hoc or LLM-generated rationales…

信息检索 · 计算机科学 2026-04-09 Yingjun Dai , Ahmed El-Roby

CDR (Cross-Domain Recommendation), i.e., leveraging information from multiple domains, is a critical solution to data sparsity problem in recommendation system. The majority of previous research either focused on single-target CDR (STCDR)…

信息检索 · 计算机科学 2024-11-27 Xiaopeng Liu , Juan Zhang , Chongqi Ren , Shenghui Xu , Zhaoming Pan , Zhimin Zhang

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…

信息检索 · 计算机科学 2022-11-08 Zhi Li , Daichi Amagata , Yihong Zhang , Takahiro Hara , Shuichiro Haruta , Kei Yonekawa , Mori Kurokawa

Internet is changing the world, adapting to the trend of internet sales will bring revenue to traditional insurance companies. Online insurance is still in its early stages of development, where cold start problem (prospective customer) is…

信息检索 · 计算机科学 2020-07-31 Ye Bi , Liqiang Song , Mengqiu Yao , Zhenyu Wu , Jianming Wang , Jing Xiao

Predicting Click-Through Rates is a crucial function within recommendation and advertising platforms, as the output of CTR prediction determines the order of items shown to users. The Embedding \& MLP paradigm has become a standard approach…

信息检索 · 计算机科学 2025-04-10 Wenqiao Zhu , Lulu Wang , Jun Wu

The conventional single-target Cross-Domain Recommendation (CDR) aims to improve the recommendation performance on a sparser target domain by transferring the knowledge from a source domain that contains relatively richer information. By…

信息检索 · 计算机科学 2023-07-27 Jiajie Zhu , Yan Wang , Feng Zhu , Zhu Sun

Classical sequential recommendation models generally adopt ID embeddings to store knowledge learned from user historical behaviors and represent items. However, these unique IDs are challenging to be transferred to new domains. With the…

信息检索 · 计算机科学 2024-05-08 Yiqing Wu , Ruobing Xie , Zhao Zhang , Fuzhen Zhuang , Xu Zhang , Leyu Lin , Zhanhui Kang , Yongjun Xu

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…

机器学习 · 计算机科学 2024-11-15 Ke Xu , Ziliang Wang , Wei Zheng , Yuhao Ma , Chenglin Wang , Nengxue Jiang , Cai Cao

Cross-Domain Recommendation (CDR) stands as a pivotal technology addressing issues of data sparsity and cold start by transferring general knowledge from the source to the target domain. However, existing CDR models suffer limitations in…

信息检索 · 计算机科学 2023-10-23 Bowen Hao , Chaoqun Yang , Lei Guo , Junliang Yu , Hongzhi Yin

Cross-Domain Sequential Recommendation (CDSR) aims to predict future user interactions based on historical interactions across multiple domains. The key challenge in CDSR is effectively capturing cross-domain user preferences by fully…

信息检索 · 计算机科学 2025-02-28 Wangyu Wu , Siqi Song , Xianglin Qiu , Xiaowei Huang , Fei Ma , Jimin Xiao

User cold-start problem is a long-standing challenge in recommendation systems. Fortunately, cross-domain recommendation (CDR) has emerged as a highly effective remedy for the user cold-start challenge, with recently developed diffusion…

信息检索 · 计算机科学 2026-03-04 Xiaodong Li , Juwei Yue , Xinghua Zhang , Jiawei Sheng , Wenyuan Zhang , Taoyu Su , Zefeng Zhang , Tingwen Liu

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…

信息检索 · 计算机科学 2024-10-10 Junxiong Tong , Mingjia Yin , Hao Wang , Qiushi Pan , Defu Lian , Enhong Chen

Cross domain recommender systems have been increasingly valuable for helping consumers identify useful items in different applications. However, existing cross-domain models typically require large number of overlap users, which can be…

信息检索 · 计算机科学 2021-04-21 Pan Li , Alexander Tuzhilin