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Recent years have witnessed the remarkable success of recommendation systems (RSs) in alleviating the information overload problem. As a new paradigm of RSs, session-based recommendation (SR) specializes in users' short-term preference…

Information Retrieval · Computer Science 2025-07-15 Zihao Li , Chao Yang , Yakun Chen , Xianzhi Wang , Hongxu Chen , Guandong Xu , Lina Yao , Quan Z. Sheng

Session-based recommendation (SBR) is mainly based on anonymous user interaction sequences to recommend the items that the next user is most likely to click. Currently, the most popular and high-performing SBR methods primarily leverage…

Information Retrieval · Computer Science 2025-07-29 Shuo Zhang , Xiao Li , Jiayi Wu , Fan Yang , Xiang Li , Ming Gao

The problem of session-based recommendation aims to predict user actions based on anonymous sessions. Previous methods model a session as a sequence and estimate user representations besides item representations to make recommendations.…

Information Retrieval · Computer Science 2019-08-14 Shu Wu , Yuyuan Tang , Yanqiao Zhu , Liang Wang , Xing Xie , Tieniu Tan

Session-based recommendation predicts users' future interests from previous interactions in a session. Despite the memorizing of historical samples, the request of unlearning, i.e., to remove the effect of certain training samples, also…

Information Retrieval · Computer Science 2023-12-25 Xin Xin , Liu Yang , Ziqi Zhao , Pengjie Ren , Zhumin Chen , Jun Ma , Zhaochun Ren

Different from the traditional recommender system, the session-based recommender system introduces the concept of the session, i.e., a sequence of interactions between a user and multiple items within a period, to preserve the user's recent…

Information Retrieval · Computer Science 2021-07-12 Ruihong Qiu , Zi Huang , Jingjing Li , Hongzhi Yin

Given e-commerce scenarios that user profiles are invisible, session-based recommendation is proposed to generate recommendation results from short sessions. Previous work only considers the user's sequential behavior in the current…

Information Retrieval · Computer Science 2017-11-15 Jing Li , Pengjie Ren , Zhumin Chen , Zhaochun Ren , Jun Ma

Recommender systems (RSs) have been playing an increasingly important role for informed consumption, services, and decision-making in the overloaded information era and digitized economy. In recent years, session-based recommender systems…

Information Retrieval · Computer Science 2021-05-18 Shoujin Wang , Longbing Cao , Yan Wang , Quan Z. Sheng , Mehmet Orgun , Defu Lian

Session-based recommendation tries to make use of anonymous session data to deliver high-quality recommendation under the condition that user-profiles and the complete historical behavioral data of a target user are unavailable. Previous…

Information Retrieval · Computer Science 2022-03-15 Zhi-Hong Deng , Chang-Dong Wang , Ling Huang , Jian-Huang Lai , Philip S. Yu

Session-based recommendation (SBR) aims to predict the user's next action based on short and dynamic sessions. Recently, there has been an increasing interest in utilizing various elaborately designed graph neural networks (GNNs) to capture…

Information Retrieval · Computer Science 2023-10-12 Peiyan Zhang , Jiayan Guo , Chaozhuo Li , Yueqi Xie , Jaeboum Kim , Yan Zhang , Xing Xie , Haohan Wang , Sunghun Kim

Session-based Recommendation (SBR) aims to predict the next item a user will likely engage with, using their interaction sequence within an anonymous session. Existing SBR models often focus only on single-session information, ignoring…

Information Retrieval · Computer Science 2025-07-08 Jinpeng Chen , Jianxiang He , Huan Li , Senzhang Wang , Yuan Cao , Kaimin Wei , Zhenye Yang , Ye Ji

Session-based recommendation (SBR) is a challenging task, which aims at recommending items based on anonymous behavior sequences. Most existing SBR studies model the user preferences based only on the current session while neglecting the…

Information Retrieval · Computer Science 2021-06-02 Ziyang Wang , Wei Wei , Gao Cong , Xiao-Li Li , Xian-Ling Mao , Minghui Qiu , Shanshan Feng

Session-based Recommendation (SR) aims to predict the next item for recommendation based on previously recorded sessions of user interaction. The majority of existing approaches to SR focus on modeling the transition patterns of items. In…

Information Retrieval · Computer Science 2022-04-06 Jiahao Yuan , Wendi Ji , Dell Zhang , Jinwei Pan , Xiaoling Wang

Session-based recommendation (SBR) methods often rely on user behavior data, which can struggle with the sparsity of session data, limiting performance. Researchers have identified that beyond behavioral signals, rich semantic information…

Information Retrieval · Computer Science 2025-04-15 Shutong Qiao , Wei Zhou , Junhao Wen , Chen Gao , Qun Luo , Peixuan Chen , Yong Li

Boosting sales of e-commerce services is guaranteed once users find more matching items to their interests in a short time. Consequently, recommendation systems have become a crucial part of any successful e-commerce services. Although…

Session-based recommendation aims at predicting the next item given a sequence of previous items consumed in the session, e.g., on e-commerce or multimedia streaming services. Specifically, session data exhibits some unique characteristics,…

Information Retrieval · Computer Science 2021-06-28 Minjin Choi , jinhong Kim , Joonseok Lee , Hyunjung Shim , Jongwuk Lee

The session-based recommendation (SBR) garners increasing attention due to its ability to predict anonymous user intents within limited interactions. Emerging efforts incorporate various kinds of side information into their methods for…

Information Retrieval · Computer Science 2024-02-28 Xiaokun Zhang , Bo Xu , Chenliang Li , Yao Zhou , Liangyue Li , Hongfei Lin

Limited intra-session information is the performance bottleneck of the early GNN based SBR models. Therefore, some GNN based SBR models have evolved to introduce additional inter-session information to facilitate the next-item prediction.…

Information Retrieval · Computer Science 2023-04-19 Zihan Wang , Gang wu , Haotong Wang

Session-based recommendation (SBR) is proposed to recommend items within short sessions given that user profiles are invisible in various scenarios nowadays, such as e-commerce and short video recommendation. There is a common scenario that…

Information Retrieval · Computer Science 2022-04-12 Chuan Cui , Qi Shen , Shixuan Zhu , Yitong Pang , Yiming Zhang , Hanning Gao , Zhihua Wei

Recommender systems is set up to address the issue of information overload in traditional information retrieval systems, which is focused on recommending information that is of most interest to users from massive information. Generally,…

Information Retrieval · Computer Science 2026-02-27 Xiaoqing Chen , Zhitao Li , Weike Pan , Zhong Ming

Session-based recommendation systems must capture implicit user intents from sessions. However, existing models suffer from issues such as item interaction dominance and noisy sessions. We propose a multi-channel recommendation model,…

Information Retrieval · Computer Science 2026-01-14 Jia-Xin He , Hung-Hsuan Chen