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Many practical recommender systems provide item recommendation for different users only via mining user-item interactions but totally ignoring the rich attribute information of items that users interact with. In this paper, we propose an…

Information Retrieval · Computer Science 2021-03-11 Xinzhou Dong , Beihong Jin , Wei Zhuo , Beibei Li , Taofeng Xue

Sequential recommender infers users' evolving psychological motivations from historical interactions to recommend the next preferred items. Most existing methods compress recent behaviors into a single vector and optimize it toward a single…

Information Retrieval · Computer Science 2026-04-20 Yicheng Di , Yuan Liu , Zhi Chen , Jingcai Guo

Session based model is widely used in recommend system. It use the user click sequence as input of a Recurrent Neural Network (RNN), and get the output of the RNN network as the vector embedding of the session, and use the inner product of…

Machine Learning · Computer Science 2019-08-28 Qizhi Zhang , Yi Lin , Kangle Wu , Yongliang Li , Anxiang Zeng

Existing item-based collaborative filtering (ICF) methods leverage only the relation of collaborative similarity. Nevertheless, there exist multiple relations between items in real-world scenarios. Distinct from the collaborative similarity…

Information Retrieval · Computer Science 2019-05-14 Xin Xin , Xiangnan He , Yongfeng Zhang , Yongdong Zhang , Joemon Jose

Sequential recommender systems predict items that may interest users by modeling their preferences based on historical interactions. Traditional sequential recommendation methods rely on capturing implicit collaborative filtering signals…

Information Retrieval · Computer Science 2024-03-28 Shenghao Yang , Weizhi Ma , Peijie Sun , Qingyao Ai , Yiqun Liu , Mingchen Cai , Min Zhang

Recent years have seen a significant amount of interests in Sequential Recommendation (SR), which aims to understand and model the sequential user behaviors and the interactions between users and items over time. Surprisingly, despite the…

Information Retrieval · Computer Science 2022-02-02 Dadong Miao , Yanan Wang , Guoyu Tang , Lin Liu , Sulong Xu , Bo Long , Yun Xiao , Lingfei Wu , Yunjiang Jiang

LLM-based agents are emerging as a promising paradigm for simulating user behavior to enhance recommender systems. However, their effectiveness is often limited by existing studies that focus on modeling user ratings for individual items.…

Information Retrieval · Computer Science 2025-11-17 Jiahao Wang , Bokang Fu , Yu Zhu , Yuli Liu

Session-based recommendation, aiming at making the prediction of the user's next item click based on the information in a single session only, even in the presence of some random user's behavior, is a complex problem. This complex problem…

Information Retrieval · Computer Science 2024-10-10 Ruida Wang , Raymond Chi-Wing Wong , Weile Tan

Capturing users' precise preferences is of great importance in various recommender systems (eg., e-commerce platforms), which is the basis of how to present personalized interesting product lists to individual users. In spite of significant…

Information Retrieval · Computer Science 2021-10-11 Lianghao Xia , Chao Huang , Yong Xu , Peng Dai , Bo Zhang , Liefeng Bo

In the landscape of contemporary recommender systems, user-item interactions are inherently dynamic and sequential, often characterized by various behaviors. Prior research has explored the modeling of user preferences through sequential…

Information Retrieval · Computer Science 2026-02-12 Jingsong Su , Xuetao Ma , Mingming Li , Qiannan Zhu , Yu Guo

In many online applications interactions between a user and a web-service are organized in a sequential way, e.g., user browsing an e-commerce website. In this setting, recommendation system acts throughout user navigation by showing items.…

Information Retrieval · Computer Science 2018-09-11 Elena Smirnova

Recommendations can greatly benefit from good representations of the user state at recommendation time. Recent approaches that leverage Recurrent Neural Networks (RNNs) for session-based recommendations have shown that Deep Learning models…

Information Retrieval · Computer Science 2017-06-26 Elena Smirnova , Flavian Vasile

Shared-account Cross-domain Sequential Recommendation (SCSR) task aims to recommend the next item via leveraging the mixed user behaviors in multiple domains. It is gaining immense research attention as more and more users tend to sign up…

Information Retrieval · Computer Science 2022-09-09 Lei Guo , Jinyu Zhang , Li Tang , Tong Chen , Lei Zhu , Hongzhi Yin

Sequential recommender systems rank relevant items by modeling a user's interaction history and computing the inner product between the resulting user representation and stored item embeddings. To avoid the significant memory overhead of…

Bundle recommender systems recommend sets of items (e.g., pants, shirt, and shoes) to users, but they often suffer from two issues: significant interaction sparsity and a large output space. In this work, we extend multi-round…

Information Retrieval · Computer Science 2022-07-27 Zhankui He , Handong Zhao , Tong Yu , Sungchul Kim , Fan Du , Julian McAuley

Sequential recommendation aims to predict the next item a user is likely to prefer based on their sequential interaction history. Recently, text-based sequential recommendation has emerged as a promising paradigm that uses pre-trained…

Information Retrieval · Computer Science 2024-09-05 Hyunsoo Kim , Junyoung Kim , Minjin Choi , Sunkyung Lee , Jongwuk Lee

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

Session-based recommendation (SBR) aims to predict the next item at a certain time point based on anonymous user behavior sequences. Existing methods typically model session representation based on simple item transition information.…

Information Retrieval · Computer Science 2023-11-07 Fuyun Wang , Xingyu Gao , Zhenyu Chen , Lei Lyu

In recent years, group buying has become one popular kind of online shopping activity, thanks to its larger sales and lower unit price. Unfortunately, research seldom focuses on recommendations specifically for group buying by now. Although…

Information Retrieval · Computer Science 2022-11-28 Shuoyao Zhai , Baichuan Liu , Deqing Yang , Yanghua Xiao

This paper studies the item-to-item recommendation problem in recommender systems from a new perspective of metric learning via implicit feedback. We develop and investigate a personalizable deep metric model that captures both the internal…

Information Retrieval · Computer Science 2022-03-24 Trong Nghia Hoang , Anoop Deoras , Tong Zhao , Jin Li , George Karypis