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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

Graph Convolutional Networks (GCNs) have shown strong performance in learning text representations for various tasks such as text classification, due to its expressive power in modeling graph structure data (e.g., a literature citation…

Computation and Language · Computer Science 2023-05-12 Zhibin Lu , Qianqian Xie , Benyou Wang , Jian-yun Nie

The Graph Convolutional Network (GCN) model and its variants are powerful graph embedding tools for facilitating classification and clustering on graphs. However, a major challenge is to reduce the complexity of layered GCNs and make them…

Machine Learning · Computer Science 2020-08-06 Hanqing Zeng , Hongkuan Zhou , Ajitesh Srivastava , Rajgopal Kannan , Viktor Prasanna

Graph Contrastive Learning (GCL) seeks to learn nodal or graph representations that contain maximal consistent information from graph-structured data. While node-level contrasting modes are dominating, some efforts commence to explore…

Machine Learning · Computer Science 2024-09-13 Zhenhao Zhao , Minhong Zhu , Chen Wang , Sijia Wang , Jiqiang Zhang , Li Chen , Weiran Cai

Though the multiscale graph learning techniques have enabled advanced feature extraction frameworks, the classic ensemble strategy may show inferior performance while encountering the high homogeneity of the learnt representation, which is…

Machine Learning · Computer Science 2021-03-18 Yuzhao Chen , Yatao Bian , Jiying Zhang , Xi Xiao , Tingyang Xu , Yu Rong , Junzhou Huang

Low-rank approximation models of data matrices have become important machine learning and data mining tools in many fields including computer vision, text mining, bioinformatics and many others. They allow for embedding high-dimensional…

Machine Learning · Computer Science 2020-10-19 Penglong Zhai , Shihua Zhang

Graph Contrastive Learning (GCL) is an effective way to learn generalized graph representations in a self-supervised manner, and has grown rapidly in recent years. However, the underlying community semantics has not been well explored by…

Social and Information Networks · Computer Science 2023-05-09 Han Chen , Ziwen Zhao , Yuhua Li , Yixiong Zou , Ruixuan Li , Rui Zhang

Graph representation learning (GRL) has emerged as a powerful technique for solving graph analytics tasks. It can effectively convert discrete graph data into a low-dimensional space where the graph structural information and graph…

Social and Information Networks · Computer Science 2023-09-21 Chunyu Miao , Chenxuan Xie , Jiajun Zhou , Shanqing Yu , Lina Chen , Qi Xuan

Semantic role labeling (SRL) is the task of identifying the predicate-argument structure of a sentence. It is typically regarded as an important step in the standard NLP pipeline. As the semantic representations are closely related to…

Computation and Language · Computer Science 2017-08-01 Diego Marcheggiani , Ivan Titov

Graph Convolutional Networks (GCNs) have been extensively used to classify vertices in graphs and have been shown to outperform other vertex classification methods. GCNs have been extended to graph classification tasks (GCT). In GCT, graphs…

Machine Learning · Computer Science 2021-04-15 Omer Nagar , Shoval Frydman , Ori Hochman , Yoram Louzoun

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

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…

Artificial Intelligence · Computer Science 2022-06-15 Jun Xia , Lirong Wu , Ge Wang , Jintao Chen , Stan Z. Li

Self-supervised learning of graph neural networks (GNN) is in great need because of the widespread label scarcity issue in real-world graph/network data. Graph contrastive learning (GCL), by training GNNs to maximize the correspondence…

Machine Learning · Computer Science 2021-11-04 Susheel Suresh , Pan Li , Cong Hao , Jennifer Neville

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…

Machine Learning · Computer Science 2024-05-10 Shengzhong Zhang , Wenjie Yang , Xinyuan Cao , Hongwei Zhang , Zengfeng Huang

Graph representation learning is of paramount importance for a variety of graph analytical tasks, ranging from node classification to community detection. Recently, graph convolutional networks (GCNs) have been successfully applied for…

Machine Learning · Computer Science 2020-11-10 Fenyu Hu , Yanqiao Zhu , Shu Wu , Weiran Huang , Liang Wang , Tieniu Tan

The superiority of graph contrastive learning (GCL) has prompted its application to anomaly detection tasks for more powerful risk warning systems. Unfortunately, existing GCL-based models tend to excessively prioritize overall detection…

Machine Learning · Computer Science 2025-07-22 Yiming Xu , Zhen Peng , Bin Shi , Xu Hua , Bo Dong , Song Wang , Chen Chen

Graph-based collaborative filtering has been established as a prominent approach in recommendation systems, leveraging the inherent graph topology of user-item interactions to model high-order connectivity patterns and enhance…

Information Retrieval · Computer Science 2025-03-21 Fan Huang , Wei Wang

Graph neural networks (GNNs) have gained significant attention in recent years for their ability to process data that may be represented as graphs. This has prompted several studies to explore their representational capability based on the…

Machine Learning · Computer Science 2025-10-15 Brian Godwin Lim , Galvin Brice Sy Lim , Renzo Roel Tan , Kazushi Ikeda

In representation learning on the graph-structured data, under heterophily (or low homophily), many popular GNNs may fail to capture long-range dependencies, which leads to their performance degradation. To solve the above-mentioned issue,…

Machine Learning · Computer Science 2021-06-29 Mengying Jiang , Guizhong Liu , Yuanchao Su , Xinliang Wu

Graph processes model a number of important problems such as identifying the epicenter of an earthquake or predicting weather. In this paper, we propose a Graph Convolutional Recurrent Neural Network (GCRNN) architecture specifically…

Machine Learning · Computer Science 2019-06-28 Luana Ruiz , Fernando Gama , Alejandro Ribeiro