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Related papers: InfoGCL: Information-Aware Graph Contrastive Learn…

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Predicting events such as political protests, flu epidemics, and criminal activities is crucial to proactively taking necessary measures and implementing required responses to address emerging challenges. Capturing contextual information…

Social and Information Networks · Computer Science 2024-04-25 Muhammed Ifte Khairul Islam , Khaled Mohammed Saifuddin , Tanvir Hossain , Esra Akbas

In recent years, methods that combine contrastive learning with graph neural networks have emerged to address the challenges of recommendation systems, demonstrating powerful performance and playing a significant role in this domain.…

Information Retrieval · Computer Science 2025-09-08 Hao Chen , Wenming Ma , Zihao Chu , Mingqi Li

Learning node-level representations of heterophilic graphs is crucial for various applications, including fraudster detection and protein function prediction. In such graphs, nodes share structural similarity identified by the equivalence…

Machine Learning · Computer Science 2023-08-22 Asif Khan , Amos Storkey

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…

Machine Learning · Computer Science 2021-12-16 Chunyang Zhang , Hongyu Yao , C. L. Philip Chen , Yuena Lin

Graph contrastive learning is a general learning paradigm excelling at capturing invariant information from diverse perturbations in graphs. Recent works focus on exploring the structural rationale from graphs, thereby increasing the…

Machine Learning · Computer Science 2024-04-09 Qirui Ji , Jiangmeng Li , Jie Hu , Rui Wang , Changwen Zheng , Fanjiang Xu

Recent studies have revealed that GNNs are vulnerable to adversarial attacks. Most existing robust graph learning methods measure model robustness based on label information, rendering them infeasible when label information is not…

Machine Learning · Computer Science 2023-06-09 Jihong Wang , Minnan Luo , Jundong Li , Ziqi Liu , Jun Zhou , Qinghua Zheng

Monitoring sustainable development goals requires accurate and timely socioeconomic statistics, while ubiquitous and frequently-updated urban imagery in web like satellite/street view images has emerged as an important source for…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Yu Liu , Xin Zhang , Jingtao Ding , Yanxin Xi , Yong Li

As the basic element of graph-structured data, node has been recognized as the main object of study in graph representation learning. A single node intuitively has multiple node-centered subgraphs from the whole graph (e.g., one person in a…

Artificial Intelligence · Computer Science 2023-09-01 Dong Li , Wenjun Wang , Minglai Shao , Chen Zhao

Remote sensing segmentation has a wide range of applications in environmental protection, and urban change detection, etc. Despite the success of deep learning-based remote sensing segmentation methods (e.g., CNN and Transformer), they are…

Computer Vision and Pattern Recognition · Computer Science 2025-10-23 Yuntao Shou , Wei Ai , Tao Meng , Nan Yin

Graph contrastive learning (GCL) has emerged as a dominant technique for graph representation learning which maximizes the mutual information between paired graph augmentations that share the same semantics. Unfortunately, it is difficult…

Machine Learning · Computer Science 2023-03-21 Jun Xia , Lirong Wu , Jintao Chen , Bozhen Hu , Stan Z. Li

Given augmented views of each input graph, contrastive learning methods (e.g., InfoNCE) optimize pairwise alignment of graph embeddings across views while providing no mechanism to control the global structure of the view specific…

Machine Learning · Computer Science 2025-12-23 Manh Nguyen

Graph condensation (GC), which reduces the size of a large-scale graph by synthesizing a small-scale condensed graph as its substitution, has benefited various graph learning tasks. However, existing GC methods rely on centralized data…

Machine Learning · Computer Science 2024-12-23 Bo Yan , Sihao He , Cheng Yang , Shang Liu , Yang Cao , Chuan Shi

Traditional Graph Neural Network (GNN), as a graph representation learning method, is constrained by label information. However, Graph Contrastive Learning (GCL) methods, which tackle the label problem effectively, mainly focus on the…

Machine Learning · Computer Science 2023-08-08 Kai Yang , Yuan Liu , Zijuan Zhao , Peijin Ding , Wenqian Zhao

Contrastive learning (CL) has shown great power in self-supervised learning due to its ability to capture insight correlations among large-scale data. Current CL models are biased to learn only the ability to discriminate positive and…

Computer Vision and Pattern Recognition · Computer Science 2022-11-17 Ziwen Liu , Bonan Li , Congying Han , Tiande Guo , Xuecheng Nie

With the rapid emergence of multi-behavior learning in recommender systems, leveraging auxiliary user behaviors has proven effective for mitigating target-behavior data sparsity. Yet auxiliary behavior graphs frequently contain noisy or…

Information Retrieval · Computer Science 2026-05-26 Likang Wu , Zihao Chen , Jianxin Zhang , Sangqi Zhu , Yuanyuan Ge , Haipeng Yang , Lei Zhang

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…

Neural and Evolutionary Computing · Computer Science 2024-02-20 Jintang Li , Huizhe Zhang , Ruofan Wu , Zulun Zhu , Baokun Wang , Changhua Meng , Zibin Zheng , Liang Chen

Contrastive learning (CL) has emerged as a promising technique for improving recommender systems, addressing the challenge of data sparsity by using self-supervised signals from raw data. Integration of CL with graph convolutional network…

Information Retrieval · Computer Science 2024-08-23 Jeongwhan Choi , Hyowon Wi , Chaejeong Lee , Sung-Bae Cho , Dongha Lee , Noseong Park

Graph Contrastive Learning frameworks have demonstrated success in generating high-quality node representations. The existing research on efficient data augmentation methods and ideal pretext tasks for graph contrastive learning remains…

Machine Learning · Computer Science 2024-10-22 Zhenyu Lin , Hongzheng Li , Yingxia Shao , Guanhua Ye , Yawen Li , Quanqing Xu

The rich information underlying graphs has inspired further investigation of unsupervised graph representation. Existing studies mainly depend on node features and topological properties within static graphs to create self-supervised…

Machine Learning · Computer Science 2026-05-27 Yiming Xu , Zhen Peng , Bin Shi , Xu Hua , Bo Dong

Graph representation learning is crucial for many real-world applications (e.g. social relation analysis). A fundamental problem for graph representation learning is how to effectively learn representations without human labeling, which is…

Social and Information Networks · Computer Science 2022-02-15 Bolian Li , Baoyu Jing , Hanghang Tong