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Accurate user and item embedding learning is crucial for modern recommender systems. However, most existing recommendation techniques have thus far focused on modeling users' preferences over singular type of user-item interactions. Many…

Information Retrieval · Computer Science 2021-10-11 Lianghao Xia , Chao Huang , Yong Xu , Peng Dai , Xiyue Zhang , Hongsheng Yang , Jian Pei , Liefeng Bo

Drug target binding affinity (DTA) is a key criterion for drug screening. Existing experimental methods are time-consuming and rely on limited structural and domain information. While learning-based methods can model sequence and structural…

Machine Learning · Computer Science 2024-06-26 Xi Xiao , Wentao Wang , Jiacheng Xie , Lijing Zhu , Gaofei Chen , Zhengji Li , Tianyang Wang , Min Xu

Hypergraphs (i.e., sets of hyperedges) naturally represent group relations (e.g., researchers co-authoring a paper and ingredients used together in a recipe), each of which corresponds to a hyperedge (i.e., a subset of nodes). Predicting…

Machine Learning · Computer Science 2022-04-19 Hyunjin Hwang , Seungwoo Lee , Chanyoung Park , Kijung Shin

Dynamic systems that consist of a set of interacting elements can be abstracted as temporal networks. Recently, higher-order patterns that involve multiple interacting nodes have been found crucial to indicate domain-specific laws of…

Social and Information Networks · Computer Science 2022-01-19 Yunyu Liu , Jianzhu Ma , Pan Li

Learning dynamic user preference has become an increasingly important component for many online platforms (e.g., video-sharing sites, e-commerce systems) to make sequential recommendations. Previous works have made many efforts to model…

Information Retrieval · Computer Science 2022-09-21 Yuhao Yang , Chao Huang , Lianghao Xia , Yuxuan Liang , Yanwei Yu , Chenliang Li

Hypergraphs, as a generalization of traditional graphs, naturally capture high-order relationships. In recent years, hypergraph neural networks (HNNs) have been widely used to capture complex high-order relationships. However, most existing…

Machine Learning · Computer Science 2025-11-25 Renchu Guan , Xuyang Li , Yachao Zhang , Wei Pang , Fausto Giunchiglia , Ximing Li , Yonghao Liu , Xiaoyue Feng

Social networks are now ubiquitous and most of them contain interactions involving multiple actors (groups) like author collaborations, teams or emails in an organizations, etc. Hypergraphs are natural structures to effectively capture…

Social and Information Networks · Computer Science 2014-01-27 Ankit Sharma , Jaideep Srivastava , Abhishek Chandra

Semantic networks provide a useful tool to understand how related concepts are retrieved from memory. However, most current network approaches use pairwise links to represent memory recall patterns. Pairwise connections neglect higher-order…

Computation and Language · Computer Science 2023-04-14 Salvatore Citraro , Simon De Deyne , Massimo Stella , Giulio Rossetti

Graph neural architecture search has sparked much attention as Graph Neural Networks (GNNs) have shown powerful reasoning capability in many relational tasks. However, the currently used graph search space overemphasizes learning node…

Machine Learning · Computer Science 2022-06-01 Shaofei Cai , Liang Li , Xinzhe Han , Jiebo Luo , Zheng-Jun Zha , Qingming Huang

In heterogeneous graphs, we can observe complex structures such as tree-like or hierarchical structures. Recently, the hyperbolic space has been widely adopted in many studies to effectively learn these complex structures. Although these…

Machine Learning · Computer Science 2026-01-14 Jongmin Park , Seunghoon Han , Hyewon Lee , Won-Yong Shin , Sungsu Lim

Cross-platform account matching plays a significant role in social network analytics, and is beneficial for a wide range of applications. However, existing methods either heavily rely on high-quality user generated content (including user…

Social and Information Networks · Computer Science 2020-06-04 Hongxu Chen , Hongzhi Yin , Xiangguo Sun , Tong Chen , Bogdan Gabrys , Katarzyna Musial

With the prevalence of social media, there has recently been a proliferation of recommenders that shift their focus from individual modeling to group recommendation. Since the group preference is a mixture of various predilections from…

Information Retrieval · Computer Science 2022-03-22 Junwei Zhang , Min Gao , Junliang Yu , Lei Guo , Jundong Li , Hongzhi Yin

Complex systems, such as economic, social, biological, and ecological systems, usually feature interactions not only between pairwise entities but also among three or more entities. These multi-entity interactions are known as higher-order…

Physics and Society · Physics 2025-06-06 Junhap Bian , Tao Zhou , Yilin Bi

Trajectory prediction is fundamental to various intelligent technologies, such as autonomous driving and robotics. The motion prediction of pedestrians and vehicles helps emergency braking, reduces collisions, and improves traffic safety.…

Computer Vision and Pattern Recognition · Computer Science 2024-05-14 Yao Liu , Binghao Li , Xianzhi Wang , Claude Sammut , Lina Yao

Many real-world interactions are group-based rather than pairwise such as papers with multiple co-authors and users jointly engaging with items. Hypergraph neural networks have shown great promise at modeling higher-order relations, but…

Machine Learning · Computer Science 2025-08-14 Xiaoyu Li , Guangyu Tang , Jiaojiao Jiang

Recently, significant attention has been given to the idea of viewing relational databases as heterogeneous graphs, enabling the application of graph neural network (GNN) technology for predictive tasks. However, existing GNN methods…

Machine Learning · Computer Science 2025-02-26 Francesco Ferrini , Antonio Longa , Andrea Passerini , Manfred Jaeger

Community detection, aiming to group the graph nodes into clusters with dense inner-connection, is a fundamental graph mining task. Recently, it has been studied on the heterogeneous graph, which contains multiple types of nodes and edges,…

Social and Information Networks · Computer Science 2021-09-07 Linhao Luo , Yixiang Fang , Xin Cao , Xiaofeng Zhang , Wenjie Zhang

Stock selection is important for investors to construct profitable portfolios. Graph neural networks (GNNs) are increasingly attracting researchers for stock prediction due to their strong ability of relation modelling and generalisation.…

Statistical Finance · Quantitative Finance 2023-06-28 Yang Qiao , Yiping Xia , Xiang Li , Zheng Li , Yan Ge

Rating is a typical user explicit feedback that visually reflects how much a user likes a related item. The (rating) matrix completion is essentially a rating prediction process, which is also a significant problem in recommender systems.…

Machine Learning · Computer Science 2025-07-09 Xiang Li , Changsheng Shui , Zhongying Zhao , Junyu Dong , Yanwei Yu

Many networked datasets with units interacting in groups of two or more, encoded with hypergraphs, are accompanied by extra information about nodes, such as the role of an individual in a workplace. Here we show how these node attributes…

Social and Information Networks · Computer Science 2024-10-31 Anna Badalyan , Nicolò Ruggeri , Caterina De Bacco