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相关论文: ID-MixGCL: Identity Mixup for Graph Contrastive Le…

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Graph Contrastive Learning (GCL) aims to self-supervised learn low-dimensional graph representations, primarily through instance discrimination, which involves manually mining positive and negative pairs from graphs, increasing the…

机器学习 · 计算机科学 2025-03-26 Yongqi Huang , Jitao Zhao , Dongxiao He , Di Jin , Yuxiao Huang , Zhen Wang

Graph Contrastive Learning (GCL) has recently drawn much research interest for learning generalizable node representations in a self-supervised manner. In general, the contrastive learning process in GCL is performed on top of the…

机器学习 · 计算机科学 2022-12-06 Kaize Ding , Yancheng Wang , Yingzhen Yang , Huan Liu

Recently, Graph Neural Networks (GNNs) achieve remarkable success in Recommendation. To reduce the influence of data sparsity, Graph Contrastive Learning (GCL) is adopted in GNN-based CF methods for enhancing performance. Most GCL methods…

信息检索 · 计算机科学 2023-02-07 Junjie Huang , Qi Cao , Ruobing Xie , Shaoliang Zhang , Feng Xia , Huawei Shen , Xueqi Cheng

Graph Convolutional Network (GCN) has exhibited remarkable potential in improving graph-based clustering. To handle the general clustering scenario without a prior graph, these models estimate an initial graph beforehand to apply GCN.…

机器学习 · 计算机科学 2024-04-04 Mulin Chen , Bocheng Wang , Xuelong Li

Contrastive Learning (CL) has recently emerged as a powerful technique in recommendation systems, particularly for its capability to harness self-supervised signals from perturbed views to mitigate the persistent challenge of data sparsity.…

信息检索 · 计算机科学 2025-04-08 Zheyu Chen , Jinfeng Xu , Yutong Wei , Ziyue Peng

Graph classification has gained significant attention due to its applications in chemistry, social networks, and bioinformatics. While Graph Neural Networks (GNNs) effectively capture local structural patterns, they often overlook global…

机器学习 · 计算机科学 2025-12-03 Ahmet Sami Korkmaz , Selim Coskunuzer , Md Joshem Uddin

For graph self-supervised learning (GSSL), masked autoencoder (MAE) follows the generative paradigm and learns to reconstruct masked graph edges or node features. Contrastive Learning (CL) maximizes the similarity between augmented views of…

机器学习 · 计算机科学 2023-10-25 Yuxiang Wang , Xiao Yan , Chuang Hu , Fangcheng Fu , Wentao Zhang , Hao Wang , Shuo Shang , Jiawei Jiang

Graph neural networks (GNNs) have recently emerged as an effective collaborative filtering (CF) approaches for recommender systems. The key idea of GNN-based recommender systems is to recursively perform message passing along user-item…

信息检索 · 计算机科学 2023-07-14 Yangqin Jiang , Chao Huang , Lianghao Xia

Graph Contrastive Learning (GCL) has recently made progress as an unsupervised graph representation learning paradigm. GCL approaches can be categorized into augmentation-based and augmentation-free methods. The former relies on complex…

机器学习 · 计算机科学 2025-04-25 Yanan Zhao , Feng Ji , Kai Zhao , Xuhao Li , Qiyu Kang , Wenfei Liang , Yahya Alkhatib , Xingchao Jian , Wee Peng Tay

With the prosperity of contrastive learning for visual representation learning (VCL), it is also adapted to the graph domain and yields promising performance. However, through a systematic study of various graph contrastive learning (GCL)…

机器学习 · 计算机科学 2023-11-07 Xiaojun Guo , Yifei Wang , Zeming Wei , Yisen Wang

We introduce a self-supervised approach for learning node and graph level representations by contrasting structural views of graphs. We show that unlike visual representation learning, increasing the number of views to more than two or…

机器学习 · 计算机科学 2020-06-11 Kaveh Hassani , Amir Hosein Khasahmadi

While contrastive self-supervised learning has become the de-facto learning paradigm for graph neural networks, the pursuit of higher task accuracy requires a larger hidden dimensionality to learn informative and discriminative…

神经与进化计算 · 计算机科学 2024-02-20 Jintang Li , Huizhe Zhang , Ruofan Wu , Zulun Zhu , Baokun Wang , Changhua Meng , Zibin Zheng , Liang Chen

Graph clustering, a classical task in graph learning, involves partitioning the nodes of a graph into distinct clusters. This task has applications in various real-world scenarios, such as anomaly detection, social network analysis, and…

机器学习 · 计算机科学 2024-08-09 Xiaoyang Ji , Yuchen Zhou , Haofu Yang , Shiyue Xu , Jiahao Li

Graph contrastive learning (GCL) has been widely applied to text classification tasks due to its ability to generate self-supervised signals from unlabeled data, thus facilitating model training. However, existing GCL-based text…

机器学习 · 计算机科学 2024-10-25 Wei Ai , Jianbin Li , Ze Wang , Jiayi Du , Tao Meng , Yuntao Shou , Keqin Li

Contrastive learning (CL) has become the de-facto learning paradigm in self-supervised learning on graphs, which generally follows the "augmenting-contrasting" learning scheme. However, we observe that unlike CL in computer vision domain,…

机器学习 · 计算机科学 2023-06-19 Wen-Zhi Li , Chang-Dong Wang , Hui Xiong , Jian-Huang Lai

Link prediction tasks focus on predicting possible future connections. Most existing researches measure the likelihood of links by different similarity scores on node pairs and predict links between nodes. However, the similarity-based…

机器学习 · 计算机科学 2023-03-09 Zehua Zhang , Shilin Sun , Guixiang Ma , Caiming Zhong

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

Graph contrastive learning (GCL) has become a powerful tool for learning graph data, but its scalability remains a significant challenge. In this work, we propose a simple yet effective training framework called Structural Compression…

机器学习 · 计算机科学 2024-05-10 Shengzhong Zhang , Wenjie Yang , Xinyuan Cao , Hongwei Zhang , Zengfeng Huang

In recent years, graph neural networks (GNN) have achieved significant developments in a variety of graph analytical tasks. Nevertheless, GNN's superior performance will suffer from serious damage when the collected node features or…

机器学习 · 计算机科学 2023-09-07 Sichao Fu , Qinmu Peng , Yang He , Baokun Du , Xinge You

With the rise of contrastive learning, unsupervised graph representation learning has been booming recently, even surpassing the supervised counterparts in some machine learning tasks. Most of existing contrastive models for graph…

机器学习 · 计算机科学 2021-12-16 Chunyang Zhang , Hongyu Yao , C. L. Philip Chen , Yuena Lin