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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

In information recommendation, a session refers to a sequence of user actions within a specific time frame. Session-based recommender systems aim to capture short-term preferences and generate relevant recommendations. However, user…

Information Retrieval · Computer Science 2025-10-20 Yongzhi Jin , Kazushi Okamoto , Kei Harada , Atsushi Shibata , Koki Karube

Session-based recommendations (SBRs) capture items' dependencies from the sessions to recommend the next item. In recent years, Graph neural networks (GNN) based SBRs have become the mainstream of SBRs benefited from the superiority of GNN…

Information Retrieval · Computer Science 2022-07-25 Qian Zhang , Wenpeng Lu

Session-based recommendation seeks to forecast the next item a user will be interested in, based on their interaction sequences. Due to limited interaction data, session-based recommendation faces the challenge of limited data availability.…

Information Retrieval · Computer Science 2024-12-17 Tiantian Liang , Zhe Yang

Session-based recommendation (SBR) aims to capture dynamic user preferences by analyzing item sequences within individual sessions. However, most existing approaches focus mainly on intra-session item relationships, neglecting the…

Information Retrieval · Computer Science 2025-05-28 Wooseong Yang , Chen Wang , Zihe Song , Weizhi Zhang , Philip S. Yu

Predicting user actions based on anonymous sessions is a challenge to general recommendation systems because the lack of user profiles heavily limits data-driven models. Recently, session-based recommendation methods have achieved…

Information Retrieval · Computer Science 2019-10-31 Yujia Zheng , Siyi Liu , Zailei Zhou

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

Sequential Recommendation Systems (SRS) have become essential in many real-world applications. However, existing SRS methods often rely on collaborative filtering signals and fail to capture real-time user preferences, while Conversational…

Information Retrieval · Computer Science 2025-09-12 Yifan Wang , Shen Gao , Jiabao Fang , Rui Yan , Billy Chiu , Shuo Shang

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

Collaborative filtering (CF) based recommender systems are typically trained based on personal interaction data (e.g., clicks and purchases) that could be naturally represented as ego graphs. However, most existing recommendation methods…

Machine Learning · Computer Science 2023-02-23 Liang Qu , Ningzhi Tang , Ruiqi Zheng , Quoc Viet Hung Nguyen , Zi Huang , Yuhui Shi , Hongzhi Yin

Session-based recommender systems (SBRSs) predict users' next interacted items based on their historical activities. While most SBRSs capture purchasing intentions locally within each session, capturing items' global information across…

Information Retrieval · Computer Science 2024-02-20 Yu Wang , Amin Javari , Janani Balaji , Walid Shalaby , Tyler Derr , Xiquan Cui

This paper presents a study on the implementation of the author's Algorithm of Recommendation Sessions (ARS) in an operational e-commerce information system and analyses the basic parameters of the resulting recommendation system. It begins…

Information Retrieval · Computer Science 2024-02-14 Michał Malinowski

Session-based recommendation targets next-item prediction by exploiting user behaviors within a short time period. Compared with other recommendation paradigms, session-based recommendation suffers more from the problem of data sparsity due…

Information Retrieval · Computer Science 2021-08-25 Xin Xia , Hongzhi Yin , Junliang Yu , Yingxia Shao , Lizhen Cui

Session-based recommendation is gaining increasing attention due to its practical value in predicting the intents of anonymous users based on limited behaviors. Emerging efforts incorporate various side information to alleviate inherent…

Information Retrieval · Computer Science 2025-05-20 Xiaokun Zhang , Bo Xu , Chenliang Li , Bowei He , Hongfei Lin , Chen Ma , Fenglong Ma

The popularity of e-commerce platforms continues to grow. Being able to understand, and predict customer behavior is essential for customizing the user experience through personalized result presentations, recommendations, and special…

Information Retrieval · Computer Science 2020-12-17 Mariya Hendriksen , Ernst Kuiper , Pim Nauts , Sebastian Schelter , Maarten de Rijke

Session-based target behavior prediction aims to predict the next item to be interacted with specific behavior types (e.g., clicking). Although existing methods for session-based behavior prediction leverage powerful representation learning…

Information Retrieval · Computer Science 2021-04-09 Wen Wang , Wei Zhang , Shukai Liu , Qi Liu , Bo Zhang , Leyu Lin , Hongyuan Zha

Sequential recommendation (SR) learns users' preferences by capturing the sequential patterns from users' behaviors evolution. As discussed in many works, user-item interactions of SR generally present the intrinsic power-law distribution,…

Information Retrieval · Computer Science 2022-05-24 Naicheng Guo , Xiaolei Liu , Shaoshuai Li , Qiongxu Ma , Kaixin Gao , Bing Han , Lin Zheng , Xiaobo Guo

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

Recommender systems help users deal with information overload by providing tailored item suggestions to them. The recommendation of news is often considered to be challenging, since the relevance of an article for a user can depend on a…

Information Retrieval · Computer Science 2019-12-10 Gabriel de Souza Pereira Moreira , Dietmar Jannach , Adilson Marques da Cunha

The goal of session-based recommendation (SR) models is to utilize the information from past actions (e.g. item/product clicks) in a session to recommend items that a user is likely to click next. Recently it has been shown that the…

Information Retrieval · Computer Science 2021-03-05 Priyanka Gupta , Diksha Garg , Pankaj Malhotra , Lovekesh Vig , Gautam Shroff