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Graph Transformer is gaining increasing attention in the field of machine learning and has demonstrated state-of-the-art performance on benchmarks for graph representation learning. However, as current implementations of Graph Transformer…

机器学习 · 计算机科学 2023-05-08 Wenhao Zhu , Tianyu Wen , Guojie Song , Xiaojun Ma , Liang Wang

Mining Electronic Health Records (EHRs) becomes a promising topic because of the rich information they contain. By learning from EHRs, machine learning models can be built to help human experts to make medical decisions and thus improve…

机器学习 · 计算机科学 2021-01-19 Zheng Liu , Xiaohan Li , Hao Peng , Lifang He , Philip S. Yu

Designing efficient and labor-saving prosthetic hands requires powerful hand gesture recognition algorithms that can achieve high accuracy with limited complexity and latency. In this context, the paper proposes a compact deep learning…

信号处理 · 电气工程与系统科学 2022-12-08 Mansooreh Montazerin , Elahe Rahimian , Farnoosh Naderkhani , S. Farokh Atashzar , Svetlana Yanushkevich , Arash Mohammadi

In this paper, we propose a novel framework, the Sampling-guided Heterogeneous Graph Neural Network (SHT-GNN), to effectively tackle the challenge of missing data imputation in longitudinal studies. Unlike traditional methods, which often…

机器学习 · 计算机科学 2024-11-08 Zhaoyang Zhang , Ziqi Chen , Qiao Liu , Jinhan Xie , Hongtu Zhu

Accurately predicting stock market movements remains a formidable challenge due to the inherent volatility and complex interdependencies among stocks. Although multi-scale Graph Neural Networks (GNNs) hold potential for modeling these…

机器学习 · 计算机科学 2025-11-04 Xiaosha Xue , Peibo Duan , Zhipeng Liu , Qi Chu , Changsheng Zhang , Bin zhang

Tax evasion causes severe losses of government revenues and disturbs the economic order of fair competition. To help alleviate this problem, the latest tax evasion detection solutions utilize expert knowledge to extract features and then…

机器学习 · 计算机科学 2026-05-27 Yiming Xu , Bin Shi , Bo Dong , Jiaxiang Wang , Hua Wei , Qinghua Zheng

Graph Neural Networks (GNNs) excel at relational reasoning but face two persistent challenges: the lack of interpretable attribution for heterogeneous node types, and the computational overhead of message passing over large, noisy graphs.…

机器学习 · 计算机科学 2026-05-12 Seungwoo Kum

Homophily, the tendency of similar nodes to connect, is a fundamental phenomenon in network science and a critical factor in the performance of graph neural networks (GNNs). While existing studies primarily explore homophily in homogeneous…

社会与信息网络 · 计算机科学 2025-11-18 Zhen Tao , Ziyue Qiao , Chaoqi Chen , Zhengyi Yang , Lun Du , Qingqiang Sun

Real-world graphs are typically complex, exhibiting heterogeneity in the global structure, as well as strong heterophily within local neighborhoods. While a growing body of literature has revealed the limitations of common graph neural…

Large graphs are present in a variety of domains, including social networks, civil infrastructure, and the physical sciences to name a few. Graph generation is similarly widespread, with applications in drug discovery, network analysis and…

机器学习 · 计算机科学 2023-11-08 Alex O. Davies , Nirav S. Ajmeri , Telmo M. Silva Filho

The sharing of external data has become a strong demand of financial institutions, but the privacy issue has led to the difficulty of interconnecting different platforms and the low degree of data openness. To effectively solve the privacy…

机器学习 · 计算机科学 2025-05-02 Zhizhong Tan , Jiexin Zheng , Kevin Qi Zhang , Wenyong Wang

The $\boldsymbol{\beta}$-model for random graphs is commonly used for representing pairwise interactions in a network with degree heterogeneity. Going beyond pairwise interactions, Stasi et al. (2014) introduced the hypergraph…

统计理论 · 数学 2024-06-07 Sagnik Nandy , Bhaswar B. Bhattacharya

Network Embedding has been widely studied to model and manage data in a variety of real-world applications. However, most existing works focus on networks with single-typed nodes or edges, with limited consideration of unbalanced…

社会与信息网络 · 计算机科学 2020-07-23 Xuandong Zhao , Jinbao Xue , Jin Yu , Xi Li , Hongxia Yang

Unsupervised heterogeneous graph representation learning (UHGRL) has gained increasing attention due to its significance in handling practical graphs without labels. However, heterophily has been largely ignored, despite its ubiquitous…

机器学习 · 计算机科学 2025-02-05 Zhixiang Shen , Zhao Kang

Accurate flood forecasting remains a challenge for water-resource management, as it demands modeling of local, time-varying runoff drivers (e.g., rainfall-induced peaks, baseflow trends) and complex spatial interactions across a river…

机器学习 · 计算机科学 2025-09-03 Aishwarya Sarkar , Autrin Hakimi , Xiaoqiong Chen , Hai Huang , Chaoqun Lu , Ibrahim Demir , Ali Jannesari

Accurate short-term state forecasting is essential for efficient and stable operation of modern power systems, especially in the context of increasing variability introduced by renewable and distributed energy resources. As these systems…

机器学习 · 计算机科学 2026-05-13 Raffael Theiler , Olga Fink

Recognition of Handwritten Mathematical Expressions (HMEs) is a challenging problem because of the ambiguity and complexity of two-dimensional handwriting. Moreover, the lack of large training data is a serious issue, especially for…

计算机视觉与模式识别 · 计算机科学 2019-01-23 Anh Duc Le , Bipin Indurkhya , Masaki Nakagawa

Risk prediction, as a typical time series modeling problem, is usually achieved by learning trends in markers or historical behavior from sequence data, and has been widely applied in healthcare and finance. In recent years, deep learning…

机器学习 · 计算机科学 2022-11-16 Youru Li , Zhenfeng Zhu , Xiaobo Guo , Shaoshuai Li , Yuchen Yang , Yao Zhao

Monitoring of industrial processes is a critical capability in industry and in government to ensure reliability of production cycles, quick emergency response, and national security. Process monitoring allows users to gauge the progress of…

机器学习 · 计算机科学 2024-04-29 Erik Skau , Andrew Hollis , Stephan Eidenbenz , Kim Rasmussen , Boian Alexandrov

Railway operations involve different types of entities (stations, trains, etc.), making the existing graph/network models with homogenous nodes (i.e., the same kind of nodes) incapable of capturing the interactions between the entities.…

机器学习 · 计算机科学 2023-03-29 Zhongcan Li , Ping Huang , Chao Wen , Filipe Rodrigues