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The rapid growth of short videos has necessitated effective recommender systems to match users with content tailored to their evolving preferences. Current video recommendation models primarily treat each video as a whole, overlooking the…

Information Retrieval · Computer Science 2025-05-06 Zhiyu He , Zhixin Ling , Jiayu Li , Zhiqiang Guo , Weizhi Ma , Xinchen Luo , Min Zhang , Guorui Zhou

Personalized news recommendation is highly time-sensitive, as user interests are often driven by emerging events, trending topics, and shifting real-world contexts. These dynamics make it essential to model not only users' long-term…

Information Retrieval · Computer Science 2026-03-12 Zhiyong Cheng , Yike Jin , Zhijie Zhang , Huilin Chen , Zhangling Duan , Meng Wang

In the video recommendation, watch time is commonly adopted as an indicator of user interest. However, watch time is not only influenced by the matching of users' interests but also by other factors, such as duration bias and noisy…

Information Retrieval · Computer Science 2023-08-17 Haiyuan Zhao , Lei Zhang , Jun Xu , Guohao Cai , Zhenhua Dong , Ji-Rong Wen

User response prediction is essential in industrial recommendation systems, such as online display advertising. Among all the features in recommendation models, user behaviors are among the most critical. Many works have revealed that a…

Information Retrieval · Computer Science 2024-07-08 Haolin Zhou , Junwei Pan , Xinyi Zhou , Xihua Chen , Jie Jiang , Xiaofeng Gao , Guihai Chen

In many classical e-commerce platforms, personalized recommendation has been proven to be of great business value, which can improve user satisfaction and increase the revenue of platforms. In this paper, we present a new recommendation…

Information Retrieval · Computer Science 2022-02-22 Qijie Shen , Hong Wen , Wanjie Tao , Jing Zhang , Fuyu Lv , Zulong Chen , Zhao Li

Click-through rate (CTR) prediction is an essential task in industrial applications such as video recommendation. Recently, deep learning models have been proposed to learn the representation of users' overall interests, while ignoring the…

Machine Learning · Computer Science 2020-01-10 Shu-Ting Shi , Wenhao Zheng , Jun Tang , Qing-Guo Chen , Yao Hu , Jianke Zhu , Ming Li

Recommender Systems are an integral part of music sharing platforms. Often the aim of these systems is to increase the time, the user spends on the platform and hence having a high commercial value. The systems which aim at increasing the…

Information Retrieval · Computer Science 2018-11-21 Noveen Sachdeva , Kartik Gupta , Vikram Pudi

CTR (Click-Through Rate) prediction, crucial for recommender systems and online advertising, etc., has been confirmed to benefit from modeling long-term user behaviors. Nonetheless, the vast number of behaviors and complexity of noise…

Information Retrieval · Computer Science 2025-09-22 Weijiang Lai , Beihong Jin , Yapeng Zhang , Yiyuan Zheng , Rui Zhao , Jian Dong , Jun Lei , Xingxing Wang

Movie recommendation systems provide users with ranked lists of movies based on individual's preferences and constraints. Two types of models are commonly used to generate ranking results: long-term models and session-based models. While…

Information Retrieval · Computer Science 2018-06-27 Wei Zhao , Haixia Chai , Benyou Wang , Jianbo Ye , Min Yang , Zhou Zhao , Xiaojun Chen

Click-through Rate (CTR) prediction is crucial for online personalization platforms. Recent advancements have shown that modeling rich user behaviors can significantly improve the performance of CTR prediction. Current long-term user…

Information Retrieval · Computer Science 2025-02-18 Xiang Xu , Hao Wang , Wei Guo , Luankang Zhang , Wanshan Yang , Runlong Yu , Yong Liu , Defu Lian , Enhong Chen

Recently, deep neural networks are widely applied in recommender systems for their effectiveness in capturing/modeling users' preferences. Especially, the attention mechanism in deep learning enables recommender systems to incorporate…

Information Retrieval · Computer Science 2021-03-17 Jianqing Zhang , Dongjing Wang , Dongjin Yu

Modeling user preferences (long-term history) and user dynamics (short-term history) is of greatest importance to build efficient sequential recommender systems. The challenge lies in the successful combination of the whole user's history…

Machine Learning · Computer Science 2021-03-31 Corentin Lonjarret , Roch Auburtin , Céline Robardet , Marc Plantevit

Recommendation systems aim to assist users to discover most preferred contents from an ever-growing corpus of items. Although recommenders have been greatly improved by deep learning, they still faces several challenges: (1) Behaviors are…

Information Retrieval · Computer Science 2020-11-19 Wendi Ji , Keqiang Wang , Xiaoling Wang , TingWei Chen , Alexandra Cristea

Modeling long-term user interests with massive historical user behaviors enhances click-through rate (CTR) prediction performance in advertising and recommendation systems. Typically, a two-stage framework is widely adopted, where a general…

Information Retrieval · Computer Science 2026-05-18 Jiangli Shao , Kaifu Zheng , Hao Fang , Huimu Ye , Zhiwei Liu , Bo Zhang , Shu Han , Xingxing Wang

The aim of session-based recommendation is to predict the users' next clicked item, which is a challenging task due to the inherent uncertainty in user behaviors and anonymous implicit feedback information. A powerful session-based…

Information Retrieval · Computer Science 2020-07-27 Jing Zhu , Yanan Xu , Yanmin Zhu

Sequential recommender systems aim to predict a user's future interests by extracting temporal patterns from their behavioral history. Existing approaches typically employ transformer-based architectures to process long sequences of user…

Information Retrieval · Computer Science 2026-02-24 Adamya Shyam , Venkateswara Rao Kagita , Bharti Rana , Vikas Kumar

User behavior modeling is a key technique for recommender systems. However, most methods focus on head users with large-scale interactions and hence suffer from data sparsity issues. Several solutions integrate side information such as…

Information Retrieval · Computer Science 2021-01-01 Lifang Deng , Jin Niu , Angulia Yang , Qidi Xu , Xiang Fu , Jiandong Zhang , Anxiang Zeng

User behavior sequence modeling, which captures user interest from rich historical interactions, is pivotal for industrial recommendation systems. Despite breakthroughs in ranking-stage models capable of leveraging ultra-long behavior…

Information Retrieval · Computer Science 2025-07-15 Yue Meng , Cheng Guo , Xiaohui Hu , Honghu Deng , Yi Cao , Tong Liu , Bo Zheng

User-item interaction histories are pivotal for sequential recommendation systems but often include noise, such as unintended clicks or actions that fail to reflect genuine user preferences. To address this, we propose Learned Item…

Information Retrieval · Computer Science 2025-11-27 Haidong Xin , Zhenghao Liu , Sen Mei , Yukun Yan , Shi Yu , Shuo Wang , Zulong Chen , Yu Gu , Ge Yu , Chenyan Xiong

User interests are usually dynamic in the real world, which poses both theoretical and practical challenges for learning accurate preferences from rich behavior data. Among existing user behavior modeling solutions, attention networks are…

Information Retrieval · Computer Science 2022-04-14 Chao Chen , Haoyu Geng , Nianzu Yang , Junchi Yan , Daiyue Xue , Jianping Yu , Xiaokang Yang