arXiv AI By Xiaobo Chen, Genliang Zhu, Ziyuan Wang, Chu Wang

Payroll Fraud Detection in Synthetic HR/ERP Graphs: An Inductive Comparison of Rules, Path Features, and Graph Neural Networks

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The study introduces an inductive link‑prediction framework for detecting payroll fraud on synthetic HR/ERP graphs, comparing analyst rules, path‑feature models, and graph neural networks (GNNs). A gradient‑boosted model using chained‑join features achieved the highest link average precision (AP 0.823), outperforming a GraIL‑style GNN (AP 0.663) and demonstrating that multi‑hop gains are not exclusive to GNNs. In additional experiments, the chained‑join model again led on a new cohort (AP 0.798), while the relational GNN surpassed record‑aware rules (AP 0.707 vs. 0.504) under various conditions, highlighting the distinct roles of multi‑hop discovery, record‑based discrimination, and review prioritization.

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