Do not ignore heterogeneity and heterophily: Multi-network collaborative telecom fraud detection

Lingfei Ren, Yilong Zang, Ruimin Hu, Dengshi Li, Junhang Wu, Zijun Huang, Jinzhang Hu

Abstract: Highlights•Telecom fraudsters commonly employ multi-network collaborative fraud strategies.•Individual SMS behaviour between fraudsters and normal users are different.•Latent collaborative graphs have a high heterophily problem.•Network-based hybrid-pass filter obtain the optimal combination of frequencies.