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Related papers: HyperGCL: Multi-Modal Graph Contrastive Learning v…

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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…

Machine Learning · Computer Science 2024-07-25 Jiaqiang Zhang , Songcan Chen

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…

Machine Learning · Computer Science 2022-01-04 Yihang Yin , Qingzhong Wang , Siyu Huang , Haoyi Xiong , Xiang Zhang

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…

Machine Learning · Computer Science 2021-03-01 Yanqiao Zhu , Yichen Xu , Feng Yu , Qiang Liu , Shu Wu , Liang 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…

Machine Learning · Computer Science 2022-12-15 Xumeng Gong , Cheng Yang , Chuan Shi

Graph augmentations are essential for graph contrastive learning. Most existing works use pre-defined random augmentations, which are usually unable to adapt to different input graphs and fail to consider the impact of different nodes and…

Machine Learning · Computer Science 2023-03-28 Yifu Chen , Qianqian Ren , Liu Yong

Inspired by the success of contrastive learning (CL) in computer vision and natural language processing, graph contrastive learning (GCL) has been developed to learn discriminative node representations on graph datasets. However, the…

Machine Learning · Computer Science 2023-01-03 Zehong Wang , Qi Li , Donghua Yu , Xiaolong Han , Xiao-Zhi Gao , Shigen Shen

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…

Machine Learning · Computer Science 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…

Information Retrieval · Computer Science 2023-07-12 Yonghui Yang , Zhengwei Wu , Le Wu , Kun Zhang , Richang Hong , Zhiqiang Zhang , Jun Zhou , Meng Wang

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)…

Machine Learning · Computer Science 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…

Social and Information Networks · Computer Science 2023-06-30 Xiao Shen , Dewang Sun , Shirui Pan , Xi Zhou , Laurence T. Yang

This paper targets at improving the generalizability of hypergraph neural networks in the low-label regime, through applying the contrastive learning approach from images/graphs (we refer to it as HyperGCL). We focus on the following…

Machine Learning · Computer Science 2022-10-11 Tianxin Wei , Yuning You , Tianlong Chen , Yang Shen , Jingrui He , Zhangyang Wang

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.…

Machine Learning · Computer Science 2024-04-02 Jinhuan Wang , Jiafei Shao , Zeyu Wang , Shanqing Yu , Qi Xuan , Xiaoniu Yang

Unsupervised graph representation learning is a non-trivial topic. The success of contrastive methods in the unsupervised representation learning on structured data inspires similar attempts on the graph. Existing graph contrastive learning…

Machine Learning · Computer Science 2024-04-02 Tianyu Zhang , Yuxiang Ren , Wenzheng Feng , Weitao Du , Xuecang Zhang

Graph contrastive learning (GCL) has emerged as a promising approach to enhance graph neural networks' (GNNs) ability to learn rich representations from unlabeled graph-structured data. However, current GCL models face challenges with…

Machine Learning · Computer Science 2025-03-11 Yujia Wu , Junyi Mo , Elynn Chen , Yuzhou Chen

Contrastive learning has emerged as a powerful tool for graph representation learning. However, most contrastive learning methods learn features of graphs with fixed coarse-grained scale, which might underestimate either local or global…

Machine Learning · Computer Science 2022-10-24 Jun Wang , Weixun Li , Changyu Hou , Xin Tang , Yixuan Qiao , Rui Fang , Pengyong Li , Peng Gao , Guotong Xie

Graph contrastive learning (GCL) learns node and graph representations by contrasting multiple views of the same graph. Existing methods typically rely on fixed, handcrafted views-usually a local and a global perspective, which limits their…

Machine Learning · Computer Science 2026-05-12 Yanan Zhao , Feng Ji , Jingyang Dai , Jiaze Ma , Keyue Jiang , Kai Zhao , Wee Peng Tay

Graph Contrastive Learning (GCL) establishes a new paradigm for learning graph representations without human annotations. Although remarkable progress has been witnessed recently, the success behind GCL is still left somewhat mysterious. In…

Machine Learning · Computer Science 2021-10-27 Yanqiao Zhu , Yichen Xu , Qiang Liu , Shu Wu

Graph Neural Networks (GNNs) have received extensive research attention due to their powerful information aggregation capabilities. Despite the success of GNNs, most of them suffer from the popularity bias issue in a graph caused by a small…

Machine Learning · Computer Science 2024-08-02 Yuntao Shou , Haozhi Lan , Xiangyong Cao

Generalizable, transferrable, and robust representation learning on graph-structured data remains a challenge for current graph neural networks (GNNs). Unlike what has been developed for convolutional neural networks (CNNs) for image data,…

Machine Learning · Computer Science 2021-04-06 Yuning You , Tianlong Chen , Yongduo Sui , Ting Chen , Zhangyang Wang , Yang Shen

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…

Machine Learning · Computer Science 2024-06-26 Yuzhou Chen , Jose Frias , Yulia R. Gel
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