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Session-based recommendation (SBR) is a challenging task, which aims to predict users' future interests based on anonymous behavior sequences. Existing methods leverage powerful representation learning approaches to encode sessions into a…

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

In recommender systems, the user-item interaction data is usually sparse and not sufficient for learning comprehensive user/item representations for recommendation. To address this problem, we propose a novel dual-bridging recommendation…

Information Retrieval · Computer Science 2019-10-17 Jingwei Ma , Jiahui Wen , Mingyang Zhong , Liangchen Liu , Chaojie Li , Weitong Chen , Yin Yang , Honghui Tu , Xue Li

Information is transmitted through websites, and immediate reactions to various kinds of information are required. Hence, efforts by users to select information themselves have increased, which is fueling further improvements in…

Information Retrieval · Computer Science 2018-07-18 Atom Sonoda , Fujio Toriumi , Hiroto Nakajima , Miyabi Gouji

User behavior data produced during interaction with massive items in the significant data era are generally heterogeneous and sparse, leaving the recommender system (RS) a large diversity of underlying patterns to excavate. Deep neural…

Information Retrieval · Computer Science 2022-12-29 Cheng Liang , Teng Huang , Yi He , Song Deng , Di Wu , Xin Luo

Recommendation systems effectively guide users in locating their desired information within extensive content repositories. Generally, a recommendation model is optimized to enhance accuracy metrics from a user utility standpoint, such as…

Information Retrieval · Computer Science 2023-10-23 Xu Huang , Jianxun Lian , Hao Wang , Defu Lian , Xing Xie

This article presents a novel approach to multimodal recommendation systems, focusing on integrating and purifying multimodal data. Our methodology starts by developing a filter to remove noise from various types of data, making the…

Information Retrieval · Computer Science 2024-05-30 Mert Burabak , Tevfik Aytekin

Recommender systems that learn from implicit feedback often use large volumes of a single type of implicit user feedback, such as clicks, to enhance the prediction of sparse target behavior such as purchases. Using multiple types of…

Information Retrieval · Computer Science 2023-05-10 Xin Xin , Xiangyuan Liu , Hanbing Wang , Pengjie Ren , Zhumin Chen , Jiahuan Lei , Xinlei Shi , Hengliang Luo , Joemon Jose , Maarten de Rijke , Zhaochun Ren

Music recommender systems play a critical role in music streaming platforms by providing users with music that they are likely to enjoy. Recent studies have shown that user emotions can influence users' preferences for music moods. However,…

Artificial Intelligence · Computer Science 2024-12-02 Erkang Jing , Yezheng Liu , Yidong Chai , Shuo Yu , Longshun Liu , Yuanchun Jiang , Yang Wang

Sequential Recommenders generate recommendations based on users' historical interaction sequences. However, in practice, these collected sequences are often contaminated by noisy interactions, which significantly impairs recommendation…

Information Retrieval · Computer Science 2025-06-10 Bohao Wang , Feng Liu , Changwang Zhang , Jiawei Chen , Yudi Wu , Sheng Zhou , Xingyu Lou , Jun Wang , Yan Feng , Chun Chen , Can Wang

Debiased recommender models have recently attracted increasing attention from the academic and industry communities. Existing models are mostly based on the technique of inverse propensity score (IPS). However, in the recommendation domain,…

Information Retrieval · Computer Science 2022-08-16 Quanyu Dai , Zhenhua Dong , Xu Chen

Sequential recommendation systems aim to provide personalized recommendations by analyzing dynamic preferences and dependencies within user behavior sequences. Recently, Transformer models can effectively capture user preferences. However,…

Information Retrieval · Computer Science 2024-07-30 Shun Zhang , Runsen Zhang , Zhirong Yang

Modern recommendation systems rank candidates by aggregating multiple behavioral signals through a value model. However, many commonly used signals are inherently affected by heterogeneous biases. For example, watch time naturally favors…

Recommender systems are widely applied in digital platforms such as news websites to personalize services based on user preferences. In news websites most of users are anonymous and the only available data is sequences of items in anonymous…

Information Retrieval · Computer Science 2021-12-20 Alireza Gharahighehi , Celine Vens

Recommender Systems have proliferated as general-purpose approaches to model a wide variety of consumer interaction data. Specific instances make use of signals ranging from user feedback, item relationships, geographic locality, social…

Information Retrieval · Computer Science 2018-08-31 Wang-Cheng Kang , Mengting Wan , Julian McAuley

The self-attention mechanism, which equips with a strong capability of modeling long-range dependencies, is one of the extensively used techniques in the sequential recommendation field. However, many recent studies represent that current…

Information Retrieval · Computer Science 2023-05-18 Xinyu Du , Huanhuan Yuan , Pengpeng Zhao , Jianfeng Qu , Fuzhen Zhuang , Guanfeng Liu , Victor S. Sheng

Sequential recommendation methods are crucial in modern recommender systems for their remarkable capability to understand a user's changing interests based on past interactions. However, a significant challenge faced by current methods…

Information Retrieval · Computer Science 2025-01-17 Haohao Qu , Yifeng Zhang , Liangbo Ning , Wenqi Fan , Qing Li

Users increasingly interact with content across multiple domains, resulting in sequential behaviors marked by frequent and complex transitions. While Cross-Domain Sequential Recommendation (CDSR) models two-domain interactions, Multi-Domain…

Information Retrieval · Computer Science 2025-10-27 Xiaoxin Ye , Chengkai Huang , Hongtao Huang , Lina Yao

It is not accurate to make recommendations only based one single current session. Therefore, multi-session-based recommendation(MSBR) is a solution for the problem. Compared with the previous MSBR models, we have made three improvements in…

Information Retrieval · Computer Science 2022-05-10 Zihan Wang , Gang Wu , Yan Wang

There is a rapidly-growing research interest in engaging users with multi-modal data for accurate user modeling on recommender systems. Existing multimedia recommenders have achieved substantial improvements by incorporating various…

Information Retrieval · Computer Science 2023-05-04 Dong Yao , Shengyu Zhang , Zhou Zhao , Jieming Zhu , Wenqiao Zhang , Rui Zhang , Xiaofei He , Fei Wu

Cross-Domain Sequential Recommendation (CDSR) leverages user behaviors across domains to enhance recommendation quality. However, naive aggregation of sequential signals can introduce conflicting domain-specific preferences, leading to…

Information Retrieval · Computer Science 2025-09-12 Xiaoxin Ye , Chengkai Huang , Hongtao Huang , Lina Yao