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As industrial recommender systems enter a scaling-driven regime, Transformer architectures have become increasingly attractive for scaling models towards larger capacity and longer sequence. However, existing Transformer-based…

Information Retrieval · Computer Science 2026-02-17 Xu Huang , Hao Zhang , Zhifang Fan , Yunwen Huang , Zhuoxing Wei , Zheng Chai , Jinan Ni , Yuchao Zheng , Qiwei Chen

In the era of advancing information technology, recommender systems have emerged as crucial tools for dealing with information overload. However, traditional recommender systems still have limitations in capturing the dynamic evolution of…

Information Retrieval · Computer Science 2025-04-09 Mingjian Fu , Hengsheng Chen , Dongchun Jiang , Yanchao Tan

In sequential recommendation (SR), system exposure refers to items that are exposed to the user. Typically, only a few of the exposed items would be interacted with by the user. Although SR has achieved great success in predicting future…

Information Retrieval · Computer Science 2025-04-21 Ziqi Zhao , Zhaochun Ren , Jiyuan Yang , Zuming Yan , Zihan Wang , Liu Yang , Pengjie Ren , Zhumin Chen , Maarten de Rijke , Xin Xin

Dynamic recommendation is essential for modern recommender systems to provide real-time predictions based on sequential data. In real-world scenarios, the popularity of items and interests of users change over time. Based on this…

Information Retrieval · Computer Science 2021-01-11 Xiaohan Li , Mengqi Zhang , Shu Wu , Zheng Liu , Liang Wang , Philip S. Yu

Most sequential recommendation models capture the features of consecutive items in a user-item interaction history. Though effective, their representation expressiveness is still hindered by the sparse learning signals. As a result, the…

Information Retrieval · Computer Science 2021-06-30 Xu Yuan , Hongshen Chen , Yonghao Song , Xiaofang Zhao , Zhuoye Ding , Zhen He , Bo Long

Sequential recommendation models user preferences to predict the next target item. Most existing work is passive, where the system responds only when users open the application, missing chances after closure. We investigate active…

Information Retrieval · Computer Science 2025-11-25 Jin Chai , Xiaoxiao Ma , Jian Yang , Jia Wu

Recommender systems have become an essential component of many online platforms, providing personalized recommendations to users. A crucial aspect is embedding techniques that convert the high-dimensional discrete features, such as user and…

Information Retrieval · Computer Science 2025-10-23 Maolin Wang , Xinjian Zhao , Wanyu Wang , Sheng Zhang , Jiansheng Li , Bowen Yu , Binhao Wang , Shucheng Zhou , Dawei Yin , Qing Li , Ruocheng Guo , Xiangyu Zhao

Graph-based recommendation systems use higher-order user and item embeddings for next-item predictions. Dynamically adding collaborative signals from neighbors helps to use similar users' preferences during learning. While item-item…

Information Retrieval · Computer Science 2025-06-09 Anushka Tiwari , Haimonti Dutta , Shahrzad Khanizadeh

Sequential recommendation involves automatically recommending the next item to users based on their historical item sequence. While most prior research employs RNN or transformer methods to glean information from the item…

Information Retrieval · Computer Science 2024-10-10 Xiaofan Zhou

Recent advances in correlation-based sequential recommendation systems have demonstrated substantial success. Specifically, the attention-based model outperforms other RNN-based and Markov chains-based models by capturing both short- and…

Information Retrieval · Computer Science 2025-10-27 Yunbo Hou , Tianle Yang , Ruijie Li , Li He , Liang Wang , Weiping Li , Bo Zheng , Guojie Song

In recent years, substantial research efforts have been devoted to enhancing sequential recommender systems by integrating abundant side information with ID-based collaborative information. This study specifically focuses on leveraging the…

Information Retrieval · Computer Science 2025-05-27 Enze Liu , Bowen Zheng , Wayne Xin Zhao , Ji-Rong Wen

Calibrated recommendation, which aims to maintain personalized proportions of categories within recommendations, is crucial in practical scenarios since it enhances user satisfaction by reflecting diverse interests. However, achieving…

Information Retrieval · Computer Science 2024-08-06 Hyunsik Jeon , Se-eun Yoon , Julian McAuley

Sequential recommendation effectively addresses information overload by modeling users' temporal and sequential interaction patterns. To overcome the limitations of supervision signals, recent approaches have adopted self-supervised…

Information Retrieval · Computer Science 2024-06-03 Yuxi Liu , Lianghao Xia , Chao Huang

The increasing availability and diversity of multimodal data in recommender systems offer new avenues for enhancing recommendation accuracy and user satisfaction. However, these systems must contend with high-dimensional, sparse user-item…

Information Retrieval · Computer Science 2024-12-04 Yasser Khalafaoui , Martino Lovisetto , Basarab Matei , Nistor Grozavu

Session-based recommender systems have attracted much attention recently. To capture the sequential dependencies, existing methods resort either to data augmentation techniques or left-to-right style autoregressive training.Since these…

Information Retrieval · Computer Science 2020-01-28 Fajie Yuan , Xiangnan He , Haochuan Jiang , Guibing Guo , Jian Xiong , Zhezhao Xu , Yilin Xiong

Timeliness and contextual accuracy of recommendations are increasingly important when delivering contemporary digital marketing experiences. Conventional recommender systems (RS) suggest relevant but time-invariant items to users by…

Information Retrieval · Computer Science 2023-07-07 Xin Chen , Alex Reibman , Sanjay Arora

Recently, significant progress has been made in sequential recommendation with deep learning. Existing neural sequential recommendation models usually rely on the item prediction loss to learn model parameters or data representations.…

Information Retrieval · Computer Science 2020-08-19 Kun Zhou , Hui Wang , Wayne Xin Zhao , Yutao Zhu , Sirui Wang , Fuzheng Zhang , Zhongyuan Wang , Ji-Rong Wen

Sequential modelling entails making sense of sequential data, which naturally occurs in a wide array of domains. One example is systems that interact with users, log user actions and behaviour, and make recommendations of items of potential…

Information Retrieval · Computer Science 2021-09-15 Christian Hansen

Sequential recommendation models aim to learn from users evolving preferences. However, current state-of-the-art models suffer from an inherent popularity bias. This study developed a novel framework, BiCoRec, that adaptively accommodates…

Information Retrieval · Computer Science 2025-12-17 Mufhumudzi Muthivhi , Terence L van Zyl , Hairong Wang

Online stores and service providers rely heavily on recommendation softwares to guide users through the vast amount of available products. Consequently, the field of recommender systems has attracted increased attention from the industry…

Information Retrieval · Computer Science 2022-10-17 Abdullah Alhadlaq , Said Kerrache , Hatim Aboalsamh