2 papers
cs.LG2025
Chi-Square Wavelet Graph Neural Networks for Heterogeneous Graph Anomaly Detection
Xiping Li, Xiangyu Dong, Xingyi Zhang +7
Graph Anomaly Detection (GAD) in heterogeneous networks presents unique challenges due to node and edge heterogeneity. Existing Graph Neural Network (GNN) methods primarily focus o…
cs.LG2023
Generative Pretraining at Scale: Transformer-Based Encoding of Transactional Behavior for Fraud Detection
Ze Yu Zhao, Zheng Zhu, Guilin Li +2
In this work, we introduce an innovative autoregressive model leveraging Generative Pretrained Transformer (GPT) architectures, tailored for fraud detection in payment systems. Our…