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Exploitation of a Latent Mechanism in Graph Contrastive Learning: Representation Scattering Dongxiao He

Neural Information Processing Systems

Graph Contrastive Learning (GCL) has emerged as a powerful approach for generating graph representations without the need for manual annotation. Most advanced GCL methods fall into three main frameworks: node discrimination, group discrimination, and bootstrapping schemes, all of which achieve comparable performance. However, the underlying mechanisms and factors that contribute to their effectiveness are not yet fully understood.










TightMutualInformationEstimationWith ContrastiveFenchel-LegendreOptimization

Neural Information Processing Systems

Successful applications ofInfoNCE (Information Noise-ContrastiveEstimation) and its variants have popularized the use of contrastive variational mutual information (MI) estimators in machine learning.