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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 contrastive learning (GCL) has emerged as an effective tool for learning unsupervised representations of graphs. The key idea is to maximize the agreement between two augmented views of each graph via data augmentation. Existing GCL…

机器学习 · 计算机科学 2022-09-16 Xin Zhang , Qiaoyu Tan , Xiao Huang , Bo Li

Recently, contrastive learning (CL) has emerged as a successful method for unsupervised graph representation learning. Most graph CL methods first perform stochastic augmentation on the input graph to obtain two graph views and maximize the…

机器学习 · 计算机科学 2021-03-01 Yanqiao Zhu , Yichen Xu , Feng Yu , Qiang Liu , Shu Wu , Liang Wang

Graph Contrastive Learning (GCL) has emerged as a powerful tool for extracting consistent representations from graphs, independent of labeled information. However, existing methods predominantly focus on undirected graphs, disregarding the…

机器学习 · 计算机科学 2025-10-21 Daohan Su , Yang Zhang , Xunkai Li , Rong-Hua Li , Guoren Wang

Contrastive learning (CL), which can extract the information shared between different contrastive views, has become a popular paradigm for vision representation learning. Inspired by the success in computer vision, recent work introduces CL…

机器学习 · 计算机科学 2022-12-15 Xumeng Gong , Cheng Yang , Chuan Shi

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

Graph contrastive learning (GCL), as an emerging self-supervised learning technique on graphs, aims to learn representations via instance discrimination. Its performance heavily relies on graph augmentation to reflect invariant patterns…

机器学习 · 计算机科学 2023-06-22 Lu Lin , Jinghui Chen , Hongning Wang

Graph contrastive learning (GCL) is an effective paradigm for node representation learning in graphs. The key components hidden behind GCL are data augmentation and positive-negative pair selection. Typical data augmentations in GCL, such…

机器学习 · 计算机科学 2024-07-25 Jiaqiang Zhang , Songcan Chen

We propose $\textbf{MGCL}$, a model-driven graph contrastive learning (GCL) framework that leverages graphons (probabilistic generative models for graphs) to guide contrastive learning by accounting for the data's underlying generative…

机器学习 · 计算机科学 2025-06-09 Ali Azizpour , Nicolas Zilberstein , Santiago Segarra

Trapped by the label scarcity in molecular property prediction and drug design, graph contrastive learning (GCL) came forward. Leading contrastive learning works show two kinds of view generators, that is, random or learnable data…

机器学习 · 计算机科学 2025-01-16 Xueyuan Chen , Shangzhe Li , Ruomei Liu , Bowen Shi , Jiaheng Liu , Junran Wu , Ke Xu

Contrastive learning has been widely applied to graph representation learning, where the view generators play a vital role in generating effective contrastive samples. Most of the existing contrastive learning methods employ pre-defined…

机器学习 · 计算机科学 2022-01-04 Yihang Yin , Qingzhong Wang , Siyu Huang , Haoyi Xiong , Xiang Zhang

Graph contrastive learning (GCL) improves graph representation learning, leading to SOTA on various downstream tasks. The graph augmentation step is a vital but scarcely studied step of GCL. In this paper, we show that the node embedding…

机器学习 · 计算机科学 2022-06-14 Yifei Zhang , Hao Zhu , Zixing Song , Piotr Koniusz , Irwin King

Graph contrastive learning (GCL) has recently achieved substantial advancements. Existing GCL approaches compare two different ``views'' of the same graph in order to learn node/graph representations. The underlying assumption of these…

机器学习 · 计算机科学 2024-01-18 Gehang Zhang , Bowen Yu , Jiangxia Cao , Xinghua Zhang , Jiawei Sheng , Chuan Zhou , Tingwen Liu

Graph contrastive learning (GCL) is a popular method for leaning graph representations by maximizing the consistency of features across augmented views. Traditional GCL methods utilize single-perspective i.e. data or model-perspective)…

机器学习 · 计算机科学 2024-06-04 Zelin Yao , Chuang Liu , Xueqi Ma , Mukun Chen , Jia Wu , Xiantao Cai , Bo Du , Wenbin Hu

Recent years, graph contrastive learning (GCL), which aims to learn representations from unlabeled graphs, has made great progress. However, the existing GCL methods mostly adopt human-designed graph augmentations, which are sensitive to…

社会与信息网络 · 计算机科学 2023-06-30 Xiao Shen , Dewang Sun , Shirui Pan , Xi Zhou , Laurence T. Yang

Graph Contrastive Learning (GCL) is a powerful self-supervised learning framework that performs data augmentation through graph perturbations, with growing applications in the analysis of biological networks such as Gene Regulatory Networks…

机器学习 · 计算机科学 2026-02-20 Sho Oshima , Yuji Okamoto , Taisei Tosaki , Ryosuke Kojima

Graph representation learning has attracted a surge of interest recently, whose target at learning discriminant embedding for each node in the graph. Most of these representation methods focus on supervised learning and heavily depend on…

机器学习 · 计算机科学 2021-07-07 Pengpeng Shao , Tong Liu , Dawei Zhang , Jianhua Tao , Feihu Che , Guohua Yang

By treating users' interactions as a user-item graph, graph learning models have been widely deployed in Collaborative Filtering(CF) based recommendation. Recently, researchers have introduced Graph Contrastive Learning(GCL) techniques into…

信息检索 · 计算机科学 2023-07-12 Yonghui Yang , Zhengwei Wu , Le Wu , Kun Zhang , Richang Hong , Zhiqiang Zhang , Jun Zhou , Meng Wang

Graph contrastive learning (GCL) has recently emerged as a new concept which allows for capitalizing on the strengths of graph neural networks (GNNs) to learn rich representations in a wide variety of applications which involve abundant…

机器学习 · 计算机科学 2024-06-26 Yuzhou Chen , Jose Frias , Yulia R. Gel

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
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