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Session-based recommendation targets next-item prediction by exploiting user behaviors within a short time period. Compared with other recommendation paradigms, session-based recommendation suffers more from the problem of data sparsity due…

Information Retrieval · Computer Science 2021-08-25 Xin Xia , Hongzhi Yin , Junliang Yu , Yingxia Shao , Lizhen Cui

Recommender systems are tools that support online users by pointing them to potential items of interest in situations of information overload. In recent years, the class of session-based recommendation algorithms received more attention in…

Information Retrieval · Computer Science 2020-09-29 Malte Ludewig , Noemi Mauro , Sara Latifi , Dietmar Jannach

Dynamic recommendation systems aim to provide personalized suggestions by modeling temporal user-item interactions across time-series behavioral data. Recent studies have leveraged pre-trained dynamic graph neural networks (GNNs) to learn…

Information Retrieval · Computer Science 2025-11-18 Zhen Tao , Xinke Jiang , Qingshuai Feng , Haoyu Zhang , Lun Du , Yuchen Fang , Hao Miao , Bangquan Xie , Qingqiang Sun

Shared-account Cross-domain Sequential Recommendation (SCSR) task aims to recommend the next item via leveraging the mixed user behaviors in multiple domains. It is gaining immense research attention as more and more users tend to sign up…

Information Retrieval · Computer Science 2022-09-09 Lei Guo , Jinyu Zhang , Li Tang , Tong Chen , Lei Zhu , Hongzhi Yin

Recent research has achieved impressive progress in the session-based recommendation. However, information such as item knowledge and click time interval, which could be potentially utilized to improve the performance, remains largely…

Information Retrieval · Computer Science 2021-12-17 Rongzhi Zhang , Yulong Gu , Xiaoyu Shen , Hui Su

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

Session-based recommendation (SBR) aims to predict the user's next action based on short and dynamic sessions. Recently, there has been an increasing interest in utilizing various elaborately designed graph neural networks (GNNs) to capture…

Information Retrieval · Computer Science 2023-10-12 Peiyan Zhang , Jiayan Guo , Chaozhuo Li , Yueqi Xie , Jaeboum Kim , Yan Zhang , Xing Xie , Haohan Wang , Sunghun Kim

Temporal Graph Learning, which aims to model the time-evolving nature of graphs, has gained increasing attention and achieved remarkable performance recently. However, in reality, graph structures are often incomplete and noisy, which…

Machine Learning · Computer Science 2023-08-16 Haozhen Zhang , Xueting Han , Xi Xiao , Jing Bai

Session-based target behavior prediction aims to predict the next item to be interacted with specific behavior types (e.g., clicking). Although existing methods for session-based behavior prediction leverage powerful representation learning…

Information Retrieval · Computer Science 2021-04-09 Wen Wang , Wei Zhang , Shukai Liu , Qi Liu , Bo Zhang , Leyu Lin , Hongyuan Zha

Session-based recommendation (SBR) has drawn increasingly research attention in recent years, due to its great practical value by only exploiting the limited user behavior history in the current session. Existing methods typically learn the…

Information Retrieval · Computer Science 2022-01-12 Ansong Li , Zhiyong Cheng , Fan Liu , Zan Gao , Weili Guan , Yuxin Peng

Human mobility prediction is a fundamental task essential for various applications in urban planning, location-based services and intelligent transportation systems. Existing methods often ignore activity information crucial for reasoning…

Machine Learning · Computer Science 2025-01-03 Yihong Tang , Junlin He , Zhan Zhao

Heterogeneous graphs have multiple node and edge types and are semantically richer than homogeneous graphs. To learn such complex semantics, many graph neural network approaches for heterogeneous graphs use metapaths to capture multi-hop…

Machine Learning · Computer Science 2022-07-26 See Hian Lee , Feng Ji , Wee Peng Tay

Session-based recommendation aims to predict user's next behavior from current session and previous anonymous sessions. Capturing long-range dependencies between items is a vital challenge in session-based recommendation. A novel approach…

Information Retrieval · Computer Science 2021-02-04 Jun Fang

Representation learning over temporal networks has drawn considerable attention in recent years. Efforts are mainly focused on modeling structural dependencies and temporal evolving regularities in Euclidean space which, however,…

Social and Information Networks · Computer Science 2023-01-31 Menglin Yang , Min Zhou , Marcus Kalander , Zengfeng Huang , Irwin King

Session-based recommendation (SBR) aims to capture dynamic user preferences by analyzing item sequences within individual sessions. However, most existing approaches focus mainly on intra-session item relationships, neglecting the…

Information Retrieval · Computer Science 2025-05-28 Wooseong Yang , Chen Wang , Zihe Song , Weizhi Zhang , Philip S. Yu

User interactions on e-commerce platforms are inherently diverse, involving behaviors such as clicking, favoriting, adding to cart, and purchasing. The transitions between these behaviors offer valuable insights into user-item interactions,…

Artificial Intelligence · Computer Science 2026-01-22 Hanqi Jin , Gaoming Yang , Zhangming Chan , Yapeng Yuan , Longbin Li , Fei Sun , Yeqiu Yang , Jian Wu , Yuning Jiang , Bo Zheng

Session-based recommendation aims at predicting the next item given a sequence of previous items consumed in the session, e.g., on e-commerce or multimedia streaming services. Specifically, session data exhibits some unique characteristics,…

Information Retrieval · Computer Science 2021-06-28 Minjin Choi , jinhong Kim , Joonseok Lee , Hyunjung Shim , Jongwuk Lee

Electronic Health Records (EHR) have been heavily used in modern healthcare systems for recording patients' admission information to hospitals. Many data-driven approaches employ temporal features in EHR for predicting specific diseases,…

Machine Learning · Computer Science 2021-12-07 Chang Lu , Chandan K. Reddy , Yue Ning

An effective understanding of the environment and accurate trajectory prediction of surrounding dynamic obstacles are indispensable for intelligent mobile systems (e.g. autonomous vehicles and social robots) to achieve safe and high-quality…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Jiachen Li , Hengbo Ma , Zhihao Zhang , Jinning Li , Masayoshi Tomizuka

Predicting user actions based on anonymous sessions is a challenge to general recommendation systems because the lack of user profiles heavily limits data-driven models. Recently, session-based recommendation methods have achieved…

Information Retrieval · Computer Science 2019-10-31 Yujia Zheng , Siyi Liu , Zailei Zhou