arXiv Machine Learning
5d ago

MINT: Mitigating Structural Inconsistency via Attentive Message Passing for Financial Anomaly Detection

MINT is a graph neural network framework designed to detect illicit accounts in financial transaction networks. It addresses structural inconsistency by using an attentive message‑passing scheme that tracks deviations between nodes in bi‑directional flows and a transaction salience module that regularizes node interactions. To cope with limited labeled data, MINT employs Positive‑Unlabeled learning, leveraging a small set of known illicit nodes and many unlabeled ones, and demonstrates superior performance on three benchmark datasets.

By Yin-Ju Wu, Bi-Cheng Yan, Berlin Chen