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Graph contrastive learning (GCL) has emerged as a state-of-the-art strategy for learning representations of diverse graphs including social and biomedical networks. GCL widely uses stochastic graph topology augmentation, such as uniform…

机器学习 · 计算机科学 2024-02-22 Yucheng Wu , Leye Wang , Xiao Han , Han-Jia Ye

Recent advancements in Graph Contrastive Learning (GCL) have demonstrated remarkable effectiveness in improving graph representations. However, relying on predefined augmentations (e.g., node dropping, edge perturbation, attribute masking)…

机器学习 · 计算机科学 2025-02-27 Khaled Mohammed Saifuddin , Shihao Ji , Esra Akbas

Deep multi-view subspace clustering (DMVSC) has recently attracted increasing attention due to its promising performance. However, existing DMVSC methods still have two issues: (1) they mainly focus on using autoencoders to nonlinearly…

机器学习 · 计算机科学 2023-05-12 Chenhang Cui , Yazhou Ren , Jingyu Pu , Xiaorong Pu , Lifang He

Graph Neural Networks (GNNs) often assume strong homophily for graph classification, seldom considering heterophily, which means connected nodes tend to have different class labels and dissimilar features. In real-world scenarios, graphs…

机器学习 · 计算机科学 2024-05-10 Jiayi Yang , Sourav Medya , Wei Ye

Graph Neural Networks (GNNs) require a large number of labeled graph samples to obtain good performance on the graph classification task. The performance of GNNs degrades significantly as the number of labeled graph samples decreases. To…

机器学习 · 计算机科学 2023-09-20 Abdullah Alchihabi , Yuhong Guo

Heterogeneous graph neural networks aim to discover discriminative node embeddings and relations from multi-relational networks.One challenge of heterogeneous graph learning is the design of learnable meta-paths, which significantly…

机器学习 · 计算机科学 2023-04-19 Zhaoliang Chen , Zhihao Wu , Luying Zhong , Claudia Plant , Shiping Wang , Wenzhong Guo

Multi-view clustering aims to study the complementary information across views and discover the underlying structure. For solving the relatively high computational cost for the existing approaches, works based on anchor have been presented…

机器学习 · 计算机科学 2024-09-26 Yalan Qin , Nan Pu , Hanzhou Wu , Nicu Sebe

Graph clustering discovers groups or communities within networks. Deep learning methods such as autoencoders (AE) extract effective clustering and downstream representations but cannot incorporate rich structural information. While Graph…

机器学习 · 计算机科学 2022-04-28 Gayan K. Kulatilleke , Marius Portmann , Shekhar S. Chandra

Graph Neural Networks (GNNs) have achieved state-of-the-art results on many graph analysis tasks such as node classification and link prediction. However, important unsupervised problems on graphs, such as graph clustering, have proved more…

机器学习 · 计算机科学 2023-06-02 Anton Tsitsulin , John Palowitch , Bryan Perozzi , Emmanuel Müller

Convolutional Neural Networks (CNN) and Vision Transformers (ViT) have dominated the field of Computer Vision (CV). Graph Neural Networks (GNN) have performed remarkably well across diverse domains because they can represent complex…

计算机视觉与模式识别 · 计算机科学 2025-04-23 Dhruv Parikh , Jacob Fein-Ashley , Tian Ye , Rajgopal Kannan , Viktor Prasanna

Convolutional neural networks (CNNs) leverage the great power in representation learning on regular grid data such as image and video. Recently, increasing attention has been paid on generalizing CNNs to graph or network data which is…

社会与信息网络 · 计算机科学 2018-08-21 Yao Ma , Suhang Wang , Charu C. Aggarwal , Dawei Yin , Jiliang Tang

Graph contrastive learning (GCL), as a self-supervised learning method, can solve the problem of annotated data scarcity. It mines explicit features in unannotated graphs to generate favorable graph representations for downstream tasks.…

机器学习 · 计算机科学 2024-04-02 Jinhuan Wang , Jiafei Shao , Zeyu Wang , Shanqing Yu , Qi Xuan , Xiaoniu Yang

Graph Neural Networks (GNNs) with attention have been successfully applied for learning visual feature matching. However, current methods learn with complete graphs, resulting in a quadratic complexity in the number of features. Motivated…

计算机视觉与模式识别 · 计算机科学 2023-03-20 Yan Shi , Jun-Xiong Cai , Yoli Shavit , Tai-Jiang Mu , Wensen Feng , Kai Zhang

Subgraph representation learning based on Graph Neural Network (GNN) has exhibited broad applications in scientific advancements, such as predictions of molecular structure-property relationships and collective cellular function. In…

机器学习 · 计算机科学 2022-10-17 Yili Shen , Xiao Liu , Cheng-Wei Ju , Jiaxu Yan , Jun Yi , Zhou Lin , Hui Guan

Two architectures that generalize convolutional neural networks (CNNs) for the processing of signals supported on graphs are introduced. We start with the selection graph neural network (GNN), which replaces linear time invariant filters…

信号处理 · 电气工程与系统科学 2019-01-30 Fernando Gama , Antonio G. Marques , Geert Leus , Alejandro Ribeiro

With the explosive growth of multi-source data, multi-view clustering has attracted great attention in recent years. Most existing multi-view methods operate in raw feature space and heavily depend on the quality of original feature…

机器学习 · 计算机科学 2022-05-20 Liang Liu , Peng Chen , Guangchun Luo , Zhao Kang , Yonggang Luo , Sanchu Han

Graph Convolutional Neural Networks (GCNNs) are generalizations of CNNs to graph-structured data, in which convolution is guided by the graph topology. In many cases where graphs are unavailable, existing methods manually construct graphs…

机器学习 · 计算机科学 2019-09-17 Xiang Gao , Wei Hu , Zongming Guo

Graph neural networks (GNNs) have emerged as a powerful tool for modeling graph-structured data. However, existing GNNs often struggle with heterophilic graphs, where connected nodes tend to have dissimilar features or labels. While…

机器学习 · 计算机科学 2026-02-10 Ruizhong Qiu , Ting-Wei Li , Gaotang Li , Hanghang Tong

Graph clustering, an important unsupervised problem, has been shown to be more resistant to advances in Graph Neural Networks (GNNs). In addition, almost all clustering methods focus on homophilic graphs and ignore heterophily. This…

机器学习 · 计算机科学 2026-03-11 Xuanting Xie , Erlin Pan , Zhao Kang , Wenyu Chen , Bingheng Li

Convolutional Neural Network (CNN) has demonstrated impressive ability to represent hyperspectral images and to achieve promising results in hyperspectral image classification. However, traditional CNN models can only operate convolution on…

图像与视频处理 · 电气工程与系统科学 2019-05-16 Sheng Wan , Chen Gong , Ping Zhong , Bo Du , Lefei Zhang , Jian Yang