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Heterogeneous graph neural networks (GNNs) achieve strong performance on node classification tasks in a semi-supervised learning setting. However, as in the simpler homogeneous GNN case, message-passing-based heterogeneous GNNs may struggle…

机器学习 · 计算机科学 2022-10-24 Hongjoon Ahn , Yongyi Yang , Quan Gan , Taesup Moon , David Wipf

A dynamic graph (DG) is frequently encountered in numerous real-world scenarios. Consequently, A dynamic graph convolutional network (DGCN) has been successfully applied to perform precise representation learning on a DG. However,…

机器学习 · 计算机科学 2025-04-23 Minglian Han

Many real-world heterogeneous graphs exhibit pronounced heterophily, where connected nodes often have dissimilar labels or play different semantic roles. In such settings, standard heterogeneous graph neural networks that aggregate messages…

机器学习 · 计算机科学 2026-05-07 Xinyi Li , Ming Li , Lu Bai , Lixin Cui , Feilong Cao , Ke Lv , Yunliang Jiang , Pietro Liò

The objective of image manipulation detection is to identify and locate the manipulated regions in the images. Recent approaches mostly adopt the sophisticated Convolutional Neural Networks (CNNs) to capture the tampering artifacts left in…

计算机视觉与模式识别 · 计算机科学 2022-01-19 Wenyan Pan , Zhili Zhou , Miaogen Ling , Xin Geng , Q. M. Jonathan Wu

We introduce a novel method for conditioning diffusion-based image synthesis models with heterogeneous graph data. Existing approaches typically incorporate conditioning variables directly into model architectures, either through…

计算机视觉与模式识别 · 计算机科学 2025-02-04 Rupert Menneer , Christos Margadji , Sebastian W. Pattinson

Polygon representation learning is essential for diverse applications, encompassing tasks such as shape coding, building pattern classification, and geographic question answering. While recent years have seen considerable advancements in…

计算机视觉与模式识别 · 计算机科学 2025-04-10 Dazhou Yu , Yuntong Hu , Yun Li , Liang Zhao

Hypergraph data, which capture multi-way interactions among entities, are increasingly prevalent in the big data era. Generating new hyperlinks from an observed, usually high-dimensional hypergraph is an important yet challenging task with…

统计方法学 · 统计学 2026-05-14 Shihao Wu , Junyi Yang , Gongjun Xu , Ji Zhu

Graph Convolution Networks (GCNs) are becoming more and more popular for learning node representations on graphs. Though there exist various developments on sampling and aggregation to accelerate the training process and improve the…

机器学习 · 计算机科学 2020-10-30 Xu Zou , Qiuye Jia , Jianwei Zhang , Chang Zhou , Hongxia Yang , Jie Tang

Heterogeneous Graph Neural Networks (HGNNs) are powerful tools for deep learning on heterogeneous graphs. Typical HGNNs require repetitive message passing during training, limiting efficiency for large-scale real-world graphs. Recent…

机器学习 · 计算机科学 2024-09-04 Jun Hu , Bryan Hooi , Bingsheng He

Heterogeneous information network (HIN) embedding, aiming to map the structure and semantic information in a HIN to distributed representations, has drawn considerable research attention. Graph neural networks for HIN embeddings typically…

社会与信息网络 · 计算机科学 2020-07-07 Di Jin , Zhizhi Yu , Dongxiao He , Carl Yang , Philip S. Yu , Jiawei Han

Finding meaningful representations and distances of hierarchical data is important in many fields. This paper presents a new method for hierarchical data embedding and distance. Our method relies on combining diffusion geometry, a central…

机器学习 · 计算机科学 2023-05-31 Ya-Wei Eileen Lin , Ronald R. Coifman , Gal Mishne , Ronen Talmon

Graph Transformers have recently achieved remarkable progress in graph representation learning by capturing long-range dependencies through self-attention. However, their quadratic computational complexity and inability to effectively model…

Heterogeneous graphs (HGs) are composed of multiple types of nodes and edges, making it more effective in capturing the complex relational structures inherent in the real world. However, in real-world scenarios, labeled data is often…

机器学习 · 计算机科学 2025-08-20 Ruobing Jiang , Yacong Li , Haobing Liu , Yanwei Yu

The progress in hyperbolic neural networks (HNNs) research is hindered by their absence of inductive bias mechanisms, which are essential for generalizing to new tasks and facilitating scalable learning over large datasets. In this paper,…

机器学习 · 计算机科学 2023-10-31 Nurendra Choudhary , Nikhil Rao , Chandan K. Reddy

In recent years, Dynamic Graph (DG) representations have been increasingly used for modeling dynamic systems due to their ability to integrate both topological and temporal information in a compact representation. Dynamic graphs allow to…

机器学习 · 计算机科学 2023-04-13 Leshanshui Yang , Sébastien Adam , Clément Chatelain

Graph Neural Networks (GNNs) have emerged as the de facto standard for modeling graph data, with attention mechanisms and transformers significantly enhancing their performance on graph-based tasks. Despite these advancements, the…

机器学习 · 计算机科学 2025-04-07 Nikhil Shivakumar Nayak

Graph neural networks (GNNs) provide powerful insights for brain neuroimaging technology from the view of graphical networks. However, most existing GNN-based models assume that the neuroimaging-produced brain connectome network is a…

机器学习 · 计算机科学 2022-09-30 Gen Shi , Yifan Zhu , Wenjin Liu , Quanming Yao , Xuesong Li

Dimensionality reduction techniques map data represented on higher dimensions onto lower dimensions with varying degrees of information loss. Graph dimensionality reduction techniques adopt the same principle of providing latent…

机器学习 · 计算机科学 2022-11-11 Akhil Pandey Akella

Network representation learning and node classification in graphs got significant attention due to the invent of different types graph neural networks. Graph convolution network (GCN) is a popular semi-supervised technique which aggregates…

社会与信息网络 · 计算机科学 2020-02-11 Sambaran Bandyopadhyay , Kishalay Das , M. Narasimha Murty

Dynamic graphs (DG) are often used to describe evolving interactions between nodes in real-world applications. Temporal patterns are a natural feature of DGs and are also key to representation learning. However, existing dynamic GCN models…

机器学习 · 计算机科学 2024-08-07 Ling Wang , Yixiang Huang , Hao Wu