CurvGAD adds Ollivier-Ricci curvature reconstruction and Ricci-flow regularization to a graph autoencoder, improving node-level anomaly detection AUROC by up to 6.5% over state-of-the-art baselines on 10 datasets.
The n-dimensional cotangent formula
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CurvGAD: Leveraging Curvature for Enhanced Graph Anomaly Detection
CurvGAD adds Ollivier-Ricci curvature reconstruction and Ricci-flow regularization to a graph autoencoder, improving node-level anomaly detection AUROC by up to 6.5% over state-of-the-art baselines on 10 datasets.