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Sequential Recommendation is a widely studied paradigm for learning users' dynamic interests from historical interactions for predicting the next potential item. Although lots of research work has achieved remarkable progress, they are…

Information Retrieval · Computer Science 2023-03-02 Yongqiang Han , Likang Wu , Hao Wang , Guifeng Wang , Mengdi Zhang , Zhi Li , Defu Lian , Enhong Chen

Understanding temporal dynamics has proved to be highly valuable for accurate recommendation. Sequential recommenders have been successful in modeling the dynamics of users and items over time. However, while different model architectures…

Machine Learning · Computer Science 2019-02-25 Jiaxi Tang , Francois Belletti , Sagar Jain , Minmin Chen , Alex Beutel , Can Xu , Ed H. Chi

The rapid expansion of multimedia contents has led to the emergence of multimodal recommendation systems. It has attracted increasing attention in recommendation systems because its full utilization of data from different modalities…

Information Retrieval · Computer Science 2024-12-30 Zheyu Chen , Jinfeng Xu , Haibo Hu

This paper studies the problem of modeling multi-agent dynamical systems, where agents could interact mutually to influence their behaviors. Recent research predominantly uses geometric graphs to depict these mutual interactions, which are…

Machine Learning · Computer Science 2024-06-28 Xiao Luo , Yiyang Gu , Huiyu Jiang , Hang Zhou , Jinsheng Huang , Wei Ju , Zhiping Xiao , Ming Zhang , Yizhou Sun

Lifelong user behavior sequences are crucial for capturing user interests and predicting user responses in modern recommendation systems. A two-stage paradigm is typically adopted to handle these long sequences: a subset of relevant…

Information Retrieval · Computer Science 2025-03-27 Ningya Feng , Junwei Pan , Jialong Wu , Baixu Chen , Ximei Wang , Qian Li , Xian Hu , Jie Jiang , Mingsheng Long

Temporal distribution shift (TDS) erodes the long-term accuracy of recommender systems, yet industrial practice still relies on periodic incremental training, which struggles to capture both stable and transient patterns. Existing…

Machine Learning · Computer Science 2025-11-27 Yuxuan Zhu , Cong Fu , Yabo Ni , Anxiang Zeng , Yuan Fang

To offer accurate and diverse recommendation services, recent methods use auxiliary information to foster the learning process of user and item representations. Many SOTA methods fuse different sources of information (user, item, knowledge…

Information Retrieval · Computer Science 2022-11-14 Haolun Wu , Yingxue Zhang , Chen Ma , Wei Guo , Ruiming Tang , Xue Liu , Mark Coates

Sequential recommendation has been a widely popular topic of recommender systems. Existing works have contributed to enhancing the prediction ability of sequential recommendation systems based on various methods, such as recurrent networks…

Information Retrieval · Computer Science 2021-11-24 Yunyi Li , Pengpeng Zhao , Guanfeng Liu , Yanchi Liu , Victor S. Sheng , Jiajie Xu , Xiaofang Zhou

Click-Through Rate (CTR) prediction is a core task in online personalization platform. A key step for CTR prediction is to learn accurate user representation to capture their interests. Generally, the interest expressed by a user is…

Information Retrieval · Computer Science 2025-11-11 Xian-Jin Gui

Sequential recommendation systems are integral to discerning temporal user preferences. Yet, the task of learning from abbreviated user interaction sequences poses a notable challenge. Data augmentation has been identified as a potent…

Information Retrieval · Computer Science 2025-02-25 Juyong Jiang , Peiyan Zhang , Yingtao Luo , Chaozhuo Li , Jae Boum Kim , Kai Zhang , Senzhang Wang , Sunghun Kim , Philip S. Yu

Recently, sign-aware graph recommendation has drawn much attention as it will learn users' negative preferences besides positive ones from both positive and negative interactions (i.e., links in a graph) with items. To accommodate the…

Information Retrieval · Computer Science 2024-03-14 Yuting Liu , Yizhou Dang , Yuliang Liang , Qiang Liu , Guibing Guo , Jianzhe Zhao , Xingwei Wang

Graph attention networks (GATs) provide one of the best frameworks for learning node representations in relational data; but, existing variants such as Graph Attention Network (GAT) mainly operate on static graphs and rely on implicit…

Machine Learning · Computer Science 2026-04-14 Ami Chopra , Supriya Bordoloi , Shyamanta M. Hazarika

Human mobility studies how people move to access their needed resources and plays a significant role in urban planning and location-based services. As a paramount task of human mobility modeling, next location prediction is challenging…

Artificial Intelligence · Computer Science 2024-12-30 Zhaoping Hu , Zongyuan Huang , Jinming Yang , Tao Yang , Yaohui Jin , Yanyan Xu

Micro-video recommendation aims to capture user preferences from the collaborative and context information of the interacted micro-videos, thereby predicting the appropriate videos. This target is often hindered by the inherent noise within…

Information Retrieval · Computer Science 2026-03-03 Xinxin Dong , Haokai Ma , Yuze Zheng , Yongfu Zha , Yonghui Yang , Xiaodong Wang

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

Recommending the right products is the central problem in recommender systems, but the right products should also be recommended at the right time to meet the demands of users, so as to maximize their values. Users' demands, implying strong…

Information Retrieval · Computer Science 2019-03-04 Ting Bai , Pan Du , Wayne Xin Zhao , Ji-Rong Wen , Jian-Yun Nie

The widespread application of machine learning techniques to biomedical data has produced many new insights into disease progression and improving clinical care. Inspired by the flexibility and interpretability of graphs (networks), as well…

Machine Learning · Computer Science 2023-12-27 Steven J. Krieg , Nitesh V. Chawla , Keith Feldman

Accurately modeling user preferences is vital not only for improving recommendation performance but also for enhancing transparency in recommender systems. Conventional user profiling methods, such as averaging item embeddings, often…

Information Retrieval · Computer Science 2025-05-05 Milad Sabouri , Masoud Mansoury , Kun Lin , Bamshad Mobasher

Job recommendation gathers many challenges well-known in recommender systems. First, it suffers from the cold start problem, with the user (the candidate) and the item (the job) having a very limited lifespan. It makes the learning of good…

Information Retrieval · Computer Science 2024-11-26 Eric Behar , Julien Romero , Amel Bouzeghoub , Katarzyna Wegrzyn-Wolska

Group recommendation over social media streams has attracted significant attention due to its wide applications in domains such as e-commerce, entertainment, and online news broadcasting. By leveraging social connections and group…

Information Retrieval · Computer Science 2025-07-03 Chengkun He , Xiangmin Zhou , Chen Wang , Longbing Cao , Jie Shao , Xiaodong Li , Guang Xu , Carrie Jinqiu Hu , Zahir Tari