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With the rapid expansion of user bases on short video platforms, personalized recommendation systems are playing an increasingly critical role in enhancing user experience and optimizing content distribution. Traditional interest modeling…

Information Retrieval · Computer Science 2025-09-08 Yushang Zhao , Yike Peng , Li Zhang , Qianyi Sun , Zhihui Zhang , Yingying Zhuang

Learning effective feature interactions is central to modern recommender systems, yet remains challenging in industrial settings due to sparse multi-field inputs and ultra-long user behavior sequences. While recent scaling efforts have…

Information Retrieval · Computer Science 2026-02-13 Fangye Wang , Guowei Yang , Xiaojiang Zhou , Song Yang , Pengjie Wang

Recently, much effort has been devoted to modeling users' multi-interests based on their behaviors or auxiliary signals. However, existing methods often rely on heuristic assumptions, e.g., co-occurring items indicate the same interest of…

Information Retrieval · Computer Science 2025-07-18 Ziyan Wang , Yingpeng Du , Zhu Sun , Jieyi Bi , Haoyan Chua , Tianjun Wei , Jie Zhang

While recommendation systems generally observe user behavior passively, there has been an increased interest in directly querying users to learn their specific preferences. In such settings, considering queries at different levels of…

Machine Learning · Computer Science 2018-12-03 Yuheng Bu , Kevin Small

Sequential recommendation based on multi-interest framework models the user's recent interaction sequence into multiple different interest vectors, since a single low-dimensional vector cannot fully represent the diversity of user…

Information Retrieval · Computer Science 2021-12-17 Jie Zhang , Ke-Jia Chen , Jingqiang Chen

Multi-behavior recommendation (MBR) aims to jointly consider multiple behaviors to improve the target behavior's performance. We argue that MBR models should: (1) model the coarse-grained commonalities between different behaviors of a user,…

Information Retrieval · Computer Science 2022-03-22 Yiqing Wu , Ruobing Xie , Yongchun Zhu , Xiang Ao , Xin Chen , Xu Zhang , Fuzhen Zhuang , Leyu Lin , Qing He

In the realm of recommendation systems, users exhibit a diverse array of behaviors when interacting with items. This phenomenon has spurred research into learning the implicit semantic relationships between these behaviors to enhance…

Information Retrieval · Computer Science 2024-08-22 Hao Wang , Yongqiang Han , Kefan Wang , Kai Cheng , Zhen Wang , Wei Guo , Yong Liu , Defu Lian , Enhong Chen

CTR prediction is essential for modern recommender systems. Ranging from early factorization machines to deep learning based models in recent years, existing CTR methods focus on capturing useful feature interactions or mining important…

Information Retrieval · Computer Science 2022-01-31 Wei Guo , Can Zhang , Zhicheng He , Jiarui Qin , Huifeng Guo , Bo Chen , Ruiming Tang , Xiuqiang He , Rui Zhang

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

Recently, substantial research has been conducted on sequential recommendation, with the objective of forecasting the subsequent item by leveraging a user's historical sequence of interacted items. Prior studies employ both capsule networks…

Information Retrieval · Computer Science 2025-05-01 Zhikai Wang , Yanyan Shen

User modeling plays a fundamental role in industrial recommender systems, either in the matching stage and the ranking stage, in terms of both the customer experience and business revenue. How to extract users' multiple interests…

Information Retrieval · Computer Science 2021-12-07 Jiaxuan Xie , Jianxiong Wei , Qingsong Hua , Yu Zhang

With the rapid increase of micro-video creators and viewers, how to make personalized recommendations from a large number of candidates to viewers begins to attract more and more attention. However, existing micro-video recommendation…

Information Retrieval · Computer Science 2022-05-20 Beibei Li , Beihong Jin , Jiageng Song , Yisong Yu , Yiyuan Zheng , Wei Zhuo

The success of recommender systems in modern online platforms is inseparable from the accurate capture of users' personal tastes. In everyday life, large amounts of user feedback data are created along with user-item online interactions in…

Machine Learning · Computer Science 2019-06-25 Xiao Zhou , Danyang Liu , Jianxun Lian , Xing Xie

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

Most existing recommender systems leverage user behavior data of one type only, such as the purchase behavior in E-commerce that is directly related to the business KPI (Key Performance Indicator) of conversion rate. Besides the key…

Information Retrieval · Computer Science 2020-02-11 Chen Gao , Xiangnan He , Dahua Gan , Xiangning Chen , Fuli Feng , Yong Li , Tat-Seng Chua , Lina Yao , Yang Song , Depeng Jin

Multi-behavior recommendation algorithms aim to leverage the multiplex interactions between users and items to learn users' latent preferences. Recent multi-behavior recommendation frameworks contain two steps: fusion and prediction. In the…

Information Retrieval · Computer Science 2023-08-10 Chang Meng , Chenhao Zhai , Yu Yang , Hengyu Zhang , Xiu Li

The motivations of users to make interactions can be divided into static preference and dynamic interest. To accurately model user representations over time, recent studies in sequential recommendation utilize information propagation and…

Information Retrieval · Computer Science 2023-09-19 Qingtian Bian , Jiaxing Xu , Hui Fang , Yiping Ke

Multi-behavior sequential recommendation (MBSR) aims to learn the dynamic and heterogeneous interactions of users' multi-behavior sequences, so as to capture user preferences under target behavior for the next interacted item prediction.…

Information Retrieval · Computer Science 2026-02-27 Ruochen Yang , Xiaodong Li , Jiawei Sheng , Jiangxia Cao , Xinkui Lin , Shen Wang , Shuang Yang , Zhaojie Liu , Tingwen Liu

Many previous studies aim to augment collaborative filtering with deep neural network techniques, so as to achieve better recommendation performance. However, most existing deep learning-based recommender systems are designed for modeling…

Information Retrieval · Computer Science 2022-03-29 Lianghao Xia , Chao Huang , Yong Xu , Peng Dai , Mengyin Lu , Liefeng Bo

In this era of information explosion, a personalized recommendation system is convenient for users to get information they are interested in. To deal with billions of users and items, large-scale online recommendation services usually…

Information Retrieval · Computer Science 2025-09-04 Xu Yuan , Chen Xu , Qiwei Chen , Chao Li , Junfeng Ge , Wenwu Ou