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Rethinking Contrastive Learning in Graph Anomaly Detection: A Clean-View Perspective

  • Graph anomaly detection is crucial for identifying unusual patterns in graph-based data with applications in web security and financial fraud detection.
  • Existing methods in graph anomaly detection rely on contrastive learning, which may be compromised by disruptive noise introduced by interfering edges.
  • To address this limitation, a Clean-View Enhanced Graph Anomaly Detection framework (CVGAD) is proposed, incorporating a multi-scale anomaly awareness module and a progressive purification module.
  • Experiments conducted on five benchmark datasets demonstrate the effectiveness of the CVGAD framework in improving anomaly detection performance.

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