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Sequential Recommendation Systems (SRS) have become essential in many real-world applications. However, existing SRS methods often rely on collaborative filtering signals and fail to capture real-time user preferences, while Conversational…

Information Retrieval · Computer Science 2025-09-12 Yifan Wang , Shen Gao , Jiabao Fang , Rui Yan , Billy Chiu , Shuo Shang

Recommendation system plays an important role in online web applications. Sequential recommender further models user short-term preference through exploiting information from latest user-item interaction history. Most of the sequential…

Information Retrieval · Computer Science 2020-09-14 Ye Tao , Can Wang , Lina Yao , Weimin Li , Yonghong Yu

In the era of information explosion, Recommender Systems (RS) are essential for alleviating information overload and providing personalized user experiences. Recent advances in diffusion-based generative recommenders have shown promise in…

Information Retrieval · Computer Science 2025-11-18 Chengyi Liu , Xiao Chen , Shijie Wang , Wenqi Fan , Qing Li

Sequential recommendation (SR) tasks aim to predict users' next interaction by learning their behavior sequence and capturing the connection between users' past interactions and their changing preferences. Conventional SR models often focus…

Information Retrieval · Computer Science 2024-12-19 Haoyi Zhang , Guohao Sun , Jinhu Lu , Guanfeng Liu , Xiu Susie Fang

Sequential recommendation is a popular paradigm in modern recommender systems. In particular, one challenging problem in this space is cross-domain sequential recommendation (CDSR), which aims to predict future behaviors given user…

Information Retrieval · Computer Science 2025-05-29 Clark Mingxuan Ju , Leonardo Neves , Bhuvesh Kumar , Liam Collins , Tong Zhao , Yuwei Qiu , Qing Dou , Sohail Nizam , Sen Yang , Neil Shah

Sequential recommendations have drawn significant attention in modeling the user's historical behaviors to predict the next item. With the booming development of multimodal data (e.g., image, text) on internet platforms, sequential…

Information Retrieval · Computer Science 2024-12-12 Changhong Li , Zhiqiang Guo

Large Language Models (LLMs) have recently emerged as promising tools for recommendation thanks to their advanced textual understanding ability and context-awareness. Despite the current practice of training and evaluating LLM-based…

Information Retrieval · Computer Science 2025-06-12 Sein Kim , Hongseok Kang , Kibum Kim , Jiwan Kim , Donghyun Kim , Minchul Yang , Kwangjin Oh , Julian McAuley , Chanyoung Park

Modeling users' dynamic and evolving preferences from their historical behaviors is challenging and crucial for recommendation systems. Previous methods employ sequential neural networks (e.g., Recurrent Neural Network) to encode users'…

Information Retrieval · Computer Science 2019-08-22 Fei Sun , Jun Liu , Jian Wu , Changhua Pei , Xiao Lin , Wenwu Ou , Peng Jiang

Sequential recommendation methods play a crucial role in modern recommender systems because of their ability to capture a user's dynamic interest from her/his historical interactions. Despite their success, we argue that these approaches…

Information Retrieval · Computer Science 2021-03-02 Xu Xie , Fei Sun , Zhaoyang Liu , Shiwen Wu , Jinyang Gao , Bolin Ding , Bin Cui

Generative recommendation (GenRec) models typically model user behavior via full attention, but scaling to lifelong sequences is hindered by prohibitive computational costs and noise accumulation from stochastic interactions. To address…

Information Retrieval · Computer Science 2026-02-16 Yixiao Chen , Yuan Wang , Yue Liu , Qiyao Wang , Ke Cheng , Xin Xu , Juntong Yan , Shuojin Yang , Menghao Guo , Jun Zhang , Huan Yu , Jie Jiang

Learning user representations based on historical behaviors lies at the core of modern recommender systems. Recent advances in sequential recommenders have convincingly demonstrated high capability in extracting effective user…

Information Retrieval · Computer Science 2021-09-14 Shengyu Zhang , Dong Yao , Zhou Zhao , Tat-seng Chua , Fei Wu

Sequential recommendation aims to recommend the next item of users' interest based on their historical interactions. Recently, the self-attention mechanism has been adapted for sequential recommendation, and demonstrated state-of-the-art…

Information Retrieval · Computer Science 2022-09-19 Bo Peng , Srinivasan Parthasarathy , Xia Ning

With the rapid development of recommendation models and device computing power, device-based recommendation has become an important research area due to its better real-time performance and privacy protection. Previously, Transformer-based…

Information Retrieval · Computer Science 2025-06-17 Tianyu Zhan , Shengyu Zhang , Zheqi Lv , Jieming Zhu , Jiwei Li , Fan Wu , Fei Wu

The quadratic complexity and indefinitely growing key-value (KV) cache of standard Transformers pose a major barrier to long-context processing. To overcome this, we introduce the Collaborative Memory Transformer (CoMeT), a novel…

Machine Learning · Computer Science 2026-04-20 Runsong Zhao , Shilei Liu , Jiwei Tang , Langming Liu , Haibin Chen , Weidong Zhang , Yujin Yuan , Tong Xiao , Jingbo Zhu , Wenbo Su , Bo Zheng

Recurrent neural networks have proven effective in modeling sequential user feedbacks for recommender systems. However, they usually focus solely on item relevance and fail to effectively explore diverse items for users, therefore harming…

Machine Learning · Computer Science 2022-02-17 Hao Wang , Yifei Ma , Hao Ding , Yuyang Wang

Recent advances in large language models (LLMs) have enabled agent-based recommendation systems with strong semantic understanding and flexible reasoning capabilities. While LLM-based agents deployed in the cloud offer powerful…

Information Retrieval · Computer Science 2025-09-03 Jing Long , Sirui Huang , Huan Huo , Tong Chen , Hongzhi Yin , Guandong Xu

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

Traditional sequential recommendation methods assume that users' sequence data is clean enough to learn accurate sequence representations to reflect user preferences. In practice, users' sequences inevitably contain noise (e.g., accidental…

Information Retrieval · Computer Science 2024-03-08 Chi Zhang , Qilong Han , Rui Chen , Xiangyu Zhao , Peng Tang , Hongtao Song

While sequential recommendation achieves significant progress on capturing user-item transition patterns, transferring such large-scale recommender systems remains challenging due to the disjoint user and item groups across domains. In this…

Information Retrieval · Computer Science 2024-11-05 Zhenrui Yue , Huimin Zeng , Yang Zhang , Julian McAuley , Dong Wang

Long-context ability, has become one of the most important iteration direction of next-generation Large Language Models, particularly in semantic understanding/reasoning, code agentic intelligence and recommendation system. However, the…