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Session-based recommendation (SR) aims to dynamically recommend items to a user based on a sequence of the most recent user-item interactions. Most existing studies on SR adopt advanced deep learning methods. However, the majority only…

Information Retrieval · Computer Science 2024-01-17 Huizi Wu , Cong Geng , Hui Fang

Sequential recommender systems have shown effective suggestions by capturing users' interest drift. There have been two groups of existing sequential models: user- and item-centric models. The user-centric models capture personalized…

Information Retrieval · Computer Science 2022-09-15 Dongmin Hyun , Chanyoung Park , Junsu Cho , Hwanjo Yu

Session-based recommendation (SR) models aim to recommend items to anonymous users based on their behavior during the current session. While various SR models in the literature utilize item sequences to predict the next item, they often…

Information Retrieval · Computer Science 2025-08-29 Jyoti Narwariya , Priyanka Gupta , Muskan Gupta , Jyotsana Khatri , Lovekesh Vig

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

Sequential Recommender Systems (SRS), which model a user's interaction history to predict the next item of interest, are widely used in various applications. However, existing SRS often struggle with low-popularity items, a challenge known…

Information Retrieval · Computer Science 2024-12-24 Qidong Liu , Xian Wu , Wanyu Wang , Yejing Wang , Yuanshao Zhu , Xiangyu Zhao , Feng Tian , Yefeng Zheng

Session-based recommendation aims to predict users' based on anonymous sessions. Previous work mainly focuses on the transition relationship between items during an ongoing session. They generally fail to pay enough attention to the…

Information Retrieval · Computer Science 2020-05-12 Zhiqiang Pan , Fei Cai , Yanxiang Ling , Maarten de Rijke

Session-based recommendation (SR) predicts the next items from a sequence of previous items consumed by an anonymous user. Most existing SR models focus only on modeling intra-session characteristics but pay less attention to inter-session…

Information Retrieval · Computer Science 2022-01-05 Minjin Choi , Jinhong Kim , Joonsek Lee , Hyunjung Shim , Jongwuk Lee

Sequential Recommendation (SR) aims to predict the next interaction of a user based on their behavior sequence, where complementary relations often provide essential signals for predicting the next item. However, mainstream models relying…

Information Retrieval · Computer Science 2026-04-22 Qian Zhang , Lech Szymanski , Haibo Zhang , Jeremiah D. Deng

Sequential Recommender Systems (SRSs) are a popular type of recommender system that learns from a user's history to predict the next item they are likely to interact with. However, user interactions can be affected by noise stemming from…

Information Retrieval · Computer Science 2024-04-18 Andrea Bacciu , Federico Siciliano , Nicola Tonellotto , Fabrizio Silvestri

Sequential Recommendation aims to recommend items that a target user will interact with in the near future based on the historically interacted items. While modeling temporal dynamics is crucial for sequential recommendation, most of the…

Information Retrieval · Computer Science 2021-09-27 Zeyuan Chen , Wei Zhang , Junchi Yan , Gang Wang , Jianyong Wang

Recommender Systems (RS) often rely on representations of users and items in a joint embedding space and on a similarity metric to compute relevance scores. In modern RS, the modules to obtain user and item representations consist of two…

Information Retrieval · Computer Science 2025-08-06 Marta Moscati , Shah Nawaz , Markus Schedl

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

Sequential recommendations (SR) predict users' future interactions based on their historical behavior. The rise of Large Language Models (LLMs) has brought powerful generative and reasoning capabilities, significantly enhancing SR…

Information Retrieval · Computer Science 2026-02-09 Qiyong Zhong , Jiajie Su , Ming Yang , Yunshan Ma , Xiaolin Zheng , Chaochao Chen

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

Sequential recommendation aims to predict users' next interaction with items based on their past engagement sequence. Recently, the advent of Large Language Models (LLMs) has sparked interest in leveraging them for sequential…

Information Retrieval · Computer Science 2024-05-07 Jiayi Liao , Sihang Li , Zhengyi Yang , Jiancan Wu , Yancheng Yuan , Xiang Wang , Xiangnan He

Sequential recommendation (SR) leverages users' dynamic preferences, with recent advances incorporating multi-interest learning to model diverse user interests. However, most multi-interest SR models rely on noisy, sparse implicit feedback,…

Information Retrieval · Computer Science 2025-05-08 Shutong Qiao , Chen Gao , Wei Yuan , Yong Li , Hongzhi Yin

Session-based recommendation systems aim to model users' interests based on their sequential interactions to predict the next item in an ongoing session. In this work, we present a novel approach that can be used in session-based…

Information Retrieval · Computer Science 2024-08-31 Begüm Özbay , Resul Tugay , Şule Gündüz Öğüdücü

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

Collaborative Metric Learning (CML) recently emerged as a powerful paradigm for recommendation based on implicit feedback collaborative filtering. However, standard CML methods learn fixed user and item representations, which fails to…

Information Retrieval · Computer Science 2021-08-11 Viet-Anh Tran , Guillaume Salha-Galvan , Romain Hennequin , Manuel Moussallam

Sequential dense retrieval models utilize advanced sequence learning techniques to compute item and user representations, which are then used to rank relevant items for a user through inner product computation between the user and all item…