Chi-Square Wavelet Graph Neural Networks for Heterogeneous Graph Anomaly Detection. - Xiping Li; Xiangyu Dong 002; Xingyi Zhang 003; Kun Xie 010; Yuanhao Feng; Bo Wang; Guilin Li; Wuxiong Zeng; Xiujun Shu; Sibo Wang 001 (CoRR, 2025)