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Representation learning in sequential recommendation is critical for accurately modeling user interaction patterns and improving recommendation precision. However, existing approaches predominantly emphasize item-to-item transitions, often…

Information Retrieval · Computer Science 2024-07-17 Yang Liu , Yitong Wang , Chenyue Feng

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

Recommender systems have seen significant advancements with the influence of deep learning and graph neural networks, particularly in capturing complex user-item relationships. However, these graph-based recommenders heavily depend on…

Information Retrieval · Computer Science 2024-12-12 Xubin Ren , Wei Wei , Lianghao Xia , Lixin Su , Suqi Cheng , Junfeng Wang , Dawei Yin , Chao Huang

The successful integration of large language models (LLMs) into recommendation systems has proven to be a major breakthrough in recent studies, paving the way for more generic and transferable recommendations. However, LLMs struggle to…

Information Retrieval · Computer Science 2023-11-29 Junyan Qiu , Haitao Wang , Zhaolin Hong , Yiping Yang , Qiang Liu , Xingxing Wang

Recommendation systems aim to learn user interests from historical behaviors and deliver relevant items. Recent methods leverage large language models (LLMs) to construct and integrate semantic representations of users and items for…

Information Retrieval · Computer Science 2026-03-17 Xiaofei Zhu , Jinfei Chen , Feiyang Yuan , Zhou Yang

Sequential recommendation aims to leverage users' historical behaviors to predict their next interaction. Existing works have not yet addressed two main challenges in sequential recommendation. First, user behaviors in their rich historical…

Information Retrieval · Computer Science 2023-07-27 Jianxin Chang , Chen Gao , Yu Zheng , Yiqun Hui , Yanan Niu , Yang Song , Depeng Jin , Yong Li

Sequential recommendation predicts each user's next item based on their historical interaction sequence. Recently, diffusion models have attracted significant attention in this area due to their strong ability to model user interest…

Information Retrieval · Computer Science 2025-08-26 Li Li , Mingyue Cheng , Yuyang Ye , Zhiding Liu , Enhong Chen

Session-based recommendation (SBR) aims to predict users' subsequent actions by modeling short-term interactions within sessions. Existing neural models primarily focus on capturing complex dependencies for sequential item transitions. As…

Information Retrieval · Computer Science 2025-04-22 Minjin Choi , Sunkyung Lee , Seongmin Park , Jongwuk Lee

Weblogs, comprised of records detailing user activities on any website, offer valuable insights into user preferences, behavior, and interests. Numerous recommendation algorithms, employing strategies such as collaborative filtering,…

Information Retrieval · Computer Science 2024-06-18 Saketh Reddy Karra , Theja Tulabandhula

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

Transformer-based sequential recommendation (SR) models excel at modeling long-range dependencies in user behavior via self-attention. However, updating them with continuously arriving behavior sequences incurs high computational costs or…

Information Retrieval · Computer Science 2025-11-25 Gyuseok Lee , Hyunsik Yoo , Junyoung Hwang , SeongKu Kang , Hwanjo Yu

Real-world recommendation systems commonly offer diverse content scenarios for users to interact with. Considering the enormous number of users in industrial platforms, it is infeasible to utilize a single unified recommendation model to…

Information Retrieval · Computer Science 2024-12-10 Chonggang Song , Chunxu Shen , Hao Gu , Yaoming Wu , Lingling Yi , Jie Wen , Chuan Chen

Recently, neural networks have been widely used in e-commerce recommender systems, owing to the rapid development of deep learning. We formalize the recommender system as a sequential recommendation problem, intending to predict the next…

Information Retrieval · Computer Science 2020-08-04 Yukuo Cen , Jianwei Zhang , Xu Zou , Chang Zhou , Hongxia Yang , Jie Tang

Large language models (LLMs) are increasingly integrated into recommender systems, motivating recent interest in agentic and reasoning-based recommendation. However, most existing approaches still rely on fixed workflows, applying the same…

Information Retrieval · Computer Science 2026-02-12 Fuchun Li , Qian Li , Xingyu Gao , Bocheng Pan , Yang Wu , Jun Zhang , Huan Yu , Jie Jiang , Jinsheng Xiao , Hailong Shi

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

Recently, relational metric learning methods have been received great attention in recommendation community, which is inspired by the translation mechanism in knowledge graph. Different from the knowledge graph where the entity-to-entity…

Information Retrieval · Computer Science 2024-06-18 Mingming Li , Fuqing Zhu , Feng Yuan , Songlin Hu

Recommendation models are predominantly trained using implicit user feedback, since explicit feedback is often costly to obtain. However, implicit feedback, such as clicks, does not always reflect users' real preferences. For example, a…

Information Retrieval · Computer Science 2025-10-06 Mengchen Zhao , Yifan Gao , Yaqing Hou , Xiangyang Li , Pengjie Gu , Zhenhua Dong , Ruiming Tang , Yi Cai

Sequential recommendation task aims to predict user preference over items in the future given user historical behaviors. The order of user behaviors implies that there are resourceful sequential patterns embedded in the behavior history…

Information Retrieval · Computer Science 2019-11-12 Jiarui Qin , Kan Ren , Yuchen Fang , Weinan Zhang , Yong Yu

Sequential recommendation aims to model dynamic user behavior from historical interactions. Existing methods rely on either explicit item IDs or general textual features for sequence modeling to understand user preferences. While promising,…

Information Retrieval · Computer Science 2023-05-30 Jiacheng Li , Ming Wang , Jin Li , Jinmiao Fu , Xin Shen , Jingbo Shang , Julian McAuley

Sequential recommendation is to predict the next item of interest for a user, based on her/his interaction history with previous items. In conventional sequential recommenders, a common approach is to model item sequences using discrete…

Information Retrieval · Computer Science 2023-11-01 Zhengyi Yang , Jiancan Wu , Yanchen Luo , Jizhi Zhang , Yancheng Yuan , An Zhang , Xiang Wang , Xiangnan He