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Recommender models aimed at mining users' behavioral patterns have raised great attention as one of the essential applications in daily life. Recent work on graph neural networks (GNNs) or debiasing methods has attained remarkable gains.…

信息检索 · 计算机科学 2024-09-05 Xinfeng Wang , Fumiyo Fukumoto , Jin Cui , Yoshimi Suzuki , Jiyi Li , Dongjin Yu

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

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

Recommendation systems, as widely implemented nowadays on various platforms, recommend relevant items to users based on their preferences. The classical methods which rely on user-item interaction matrices has limitations, especially in…

信息检索 · 计算机科学 2025-01-13 Guangyi Liu , Quanming Yao , Yongqi Zhang , Lei Chen

The chit-chat-based conversational recommendation systems (CRS) provide item recommendations to users through natural language interactions. To better understand user's intentions, external knowledge graphs (KG) have been introduced into…

计算与语言 · 计算机科学 2021-05-19 Tong Zhang , Yong Liu , Peixiang Zhong , Chen Zhang , Hao Wang , Chunyan Miao

Large-scale Electronic Health Record (EHR) databases have become indispensable in supporting clinical decision-making through data-driven treatment recommendations. However, existing medication recommender methods often struggle with a user…

机器学习 · 计算机科学 2026-02-02 Arya Hadizadeh Moghaddam , Mohsen Nayebi Kerdabadi , Dongjie Wang , Mei Liu , Zijun Yao

Cross-domain recommendation (CDR) aims to alleviate data sparsity by transferring knowledge across domains, yet existing methods primarily rely on coarse-grained behavioral signals and often overlook intra-domain heterogeneity in user…

人机交互 · 计算机科学 2026-03-10 Daehee Kang , Yeon-Chang Lee

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…

信息检索 · 计算机科学 2024-04-15 Wujiang Xu , Qitian Wu , Runzhong Wang , Mingming Ha , Qiongxu Ma , Linxun Chen , Bing Han , Junchi Yan

Recommender systems (RS) have become crucial tools for information filtering in various real world scenarios. And cross domain recommendation (CDR) has been widely explored in recent years in order to provide better recommendation results…

信息检索 · 计算机科学 2025-03-19 Hao Zhang , Mingyue Cheng , Qi Liu , Junzhe Jiang , Xianquan Wang , Rujiao Zhang , Chenyi Lei , Enhong Chen

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

Federated Learning (FL) has emerged as a promising approach for preserving data privacy in recommendation systems by training models locally. Recently, Graph Neural Networks (GNN) have gained popularity in recommendation tasks due to their…

密码学与安全 · 计算机科学 2024-01-24 Dezhong Yao , Tongtong Liu , Qi Cao , Hai Jin

Knowledge graphs (KGs) provide reliable external knowledge for a wide variety of AI tasks in the form of structured triples. Knowledge graph pre-training (KGP) aims to pre-train neural networks on large-scale KGs and provide unified…

计算与语言 · 计算机科学 2024-05-24 Yichi Zhang , Binbin Hu , Zhuo Chen , Lingbing Guo , Ziqi Liu , Zhiqiang Zhang , Lei Liang , Huajun Chen , Wen Zhang

Knowledge graph (KG) plays an increasingly important role in recommender systems. Recently, graph neural networks (GNNs) based model has gradually become the theme of knowledge-aware recommendation (KGR). However, there is a natural…

信息检索 · 计算机科学 2022-04-20 Ding Zou , Wei Wei , Xian-Ling Mao , Ziyang Wang , Minghui Qiu , Feida Zhu , Xin Cao

In recent years, Graph Neural Networks (GNNs), which can naturally integrate node information and topological structure, have been demonstrated to be powerful in learning on graph data. These advantages of GNNs provide great potential to…

信息检索 · 计算机科学 2019-11-26 Wenqi Fan , Yao Ma , Qing Li , Yuan He , Eric Zhao , Jiliang Tang , Dawei Yin

Personalized content marketing has become a crucial strategy for digital platforms, aiming to deliver tailored advertisements and recommendations that match user preferences. Traditional recommendation systems often suffer from two…

信息检索 · 计算机科学 2025-09-23 Ruihan Luo , Xuanjing Chen , Ziyang Ding

Recommender systems suffer from the cold-start problem whenever a new user joins the platform or a new item is added to the catalog. To address item cold-start, we propose to replace the embedding layer in sequential recommenders with a…

信息检索 · 计算机科学 2024-10-02 Kuba Weimann , Tim O. F. Conrad

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…

信息检索 · 计算机科学 2025-06-10 Zongyi Xiang , Yan Zhang , Lixin Duan , Hongzhi Yin , Ivor W. Tsang

Incorporating Knowledge Graphs (KG) into recommeder system has attracted considerable attention. Recently, the technical trend of Knowledge-aware Recommendation (KGR) is to develop end-to-end models based on graph neural networks (GNNs).…

信息检索 · 计算机科学 2022-08-23 Ding Zou , Wei Wei , Ziyang Wang , Xian-Ling Mao , Feida Zhu , Rui Fang , Dangyang Chen

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

Cross-Domain Recommendation (CDR) has been widely investigated for solving long-standing data sparsity problem via knowledge sharing across domains. In this paper, we focus on the Multi-Modal Cross-Domain Recommendation (MMCDR) problem…

信息检索 · 计算机科学 2025-02-25 Weiming Liu , Chaochao Chen , Jiahe Xu , Xinting Liao , Fan Wang , Xiaolin Zheng , Zhihui Fu , Ruiguang Pei , Jun Wang