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相关论文: Revisiting Graph Contrastive Learning from the Per…

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Graph contrastive learning (GCL) has emerged as a pivotal technique in the domain of graph representation learning. A crucial aspect of effective GCL is the caliber of generated positive and negative samples, which is intrinsically dictated…

机器学习 · 计算机科学 2024-02-19 Xinjian Zhao , Liang Zhang , Yang Liu , Ruocheng Guo , Xiangyu Zhao

Graph Neural Networks (GNNs) have demonstrated promising results on exploiting node representations for many downstream tasks through supervised end-to-end training. To deal with the widespread label scarcity issue in real-world…

机器学习 · 计算机科学 2023-08-02 Cheng Wu , Chaokun Wang , Jingcao Xu , Ziyang Liu , Kai Zheng , Xiaowei Wang , Yang Song , Kun Gai

Graph Neural Networks (GNNs) have achieved remarkable success in learning node representations and have shown strong performance in tasks such as node classification. However, recent findings indicate that the presence of noise in…

机器学习 · 计算机科学 2025-07-01 Yancheng Wang , Yingzhen Yang

Graph Contrastive Learning (GCL) has proven highly effective in promoting the performance of Semi-Supervised Node Classification (SSNC). However, existing GCL methods are generally transferred from other fields like CV or NLP, whose…

机器学习 · 计算机科学 2022-04-28 Deli Chen , Yankai Lin , Lei Li , Xuancheng Ren , Peng Li , Jie Zhou , Xu Sun

Graph representation learning (GRL) makes considerable progress recently, which encodes graphs with topological structures into low-dimensional embeddings. Meanwhile, the time-consuming and costly process of annotating graph labels manually…

机器学习 · 计算机科学 2024-02-28 Haojun Jiang , Jiawei Sun , Jie Li , Chentao Wu

Contrastive learning (CL) has emerged as a powerful framework for learning representations of images and text in a self-supervised manner while enhancing model robustness against adversarial attacks. More recently, researchers have extended…

机器学习 · 计算机科学 2023-12-04 Filippo Guerranti , Zinuo Yi , Anna Starovoit , Rafiq Kamel , Simon Geisler , Stephan Günnemann

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…

机器学习 · 计算机科学 2025-03-11 Yujia Wu , Junyi Mo , Elynn Chen , Yuzhou Chen

Graph Convolutional Networks (GCNs) has demonstrated promising results for recommender systems, as they can effectively leverage high-order relationship. However, these methods usually encounter data sparsity issue in real-world scenarios.…

信息检索 · 计算机科学 2023-09-21 Qian Zhao , Zhengwei Wu , Zhiqiang Zhang , Jun Zhou

Recent years have seen a rapid growth of utilizing graph neural networks (GNNs) in the biomedical domain for tackling drug-related problems. However, like any other deep architectures, GNNs are data hungry. While requiring labels in real…

生物物理 · 物理学 2022-05-03 Mengying Sun , Jing Xing , Huijun Wang , Bin Chen , Jiayu Zhou

The rise of self-supervised learning, which operates without the need for labeled data, has garnered significant interest within the graph learning community. This enthusiasm has led to the development of numerous Graph Contrastive Learning…

机器学习 · 计算机科学 2024-02-27 Qian Ma , Hongliang Chi , Hengrui Zhang , Kay Liu , Zhiwei Zhang , Lu Cheng , Suhang Wang , Philip S. Yu , Yao Ma

Recent analyses of self-supervised learning (SSL) find the following data-centric properties to be critical for learning good representations: invariance to task-irrelevant semantics, separability of classes in some latent space, and…

机器学习 · 计算机科学 2023-01-24 Puja Trivedi , Ekdeep Singh Lubana , Mark Heimann , Danai Koutra , Jayaraman J. Thiagarajan

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…

机器学习 · 计算机科学 2023-03-28 Yifu Chen , Qianqian Ren , Liu Yong

Graph Contrastive Learning (GCL) has emerged as a prominent framework for unsupervised graph representation learning. However, relying on augmentation design alone to define the invariances learned by GCL can be brittle under structural…

机器学习 · 计算机科学 2026-04-30 Mengyang Zhao , Longlong Li , Cunquan Qu

Contrastive Learning (CL) has emerged as a dominant technique for unsupervised representation learning which embeds augmented versions of the anchor close to each other (positive samples) and pushes the embeddings of other samples…

人工智能 · 计算机科学 2022-06-15 Jun Xia , Lirong Wu , Ge Wang , Jintao Chen , Stan Z. Li

Knowledge Graphs (KGs) have been utilized as useful side information to improve recommendation quality. In those recommender systems, knowledge graph information often contains fruitful facts and inherent semantic relatedness among items.…

信息检索 · 计算机科学 2022-08-19 Yuhao Yang , Chao Huang , Lianghao Xia , Chenliang Li

Bundle recommendation aims to provide a bundle of items to satisfy the user preference on e-commerce platform. Existing successful solutions are based on the contrastive graph learning paradigm where graph neural networks (GNNs) are…

信息检索 · 计算机科学 2023-07-26 Zhao-Yang Liu , Liucheng Sun , Chenwei Weng , Qijin Chen , Chengfu Huo

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…

机器学习 · 计算机科学 2023-01-03 Zehong Wang , Qi Li , Donghua Yu , Xiaolong Han , Xiao-Zhi Gao , Shigen Shen

Graph Contrastive Learning (GCL) has recently emerged as a promising graph self-supervised learning framework for learning discriminative node representations without labels. The widely adopted objective function of GCL benefits from two…

机器学习 · 计算机科学 2024-11-05 Yunhui Liu , Tieke He , Tao Zheng , Jianhua Zhao

Self-supervision is recently surging at its new frontier of graph learning. It facilitates graph representations beneficial to downstream tasks; but its success could hinge on domain knowledge for handcraft or the often expensive trials and…

机器学习 · 计算机科学 2022-01-06 Yuning You , Tianlong Chen , Zhangyang Wang , Yang Shen

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