no code implementations • 11 Jul 2023 • Yue Tian, Guanjun Liu
Therefore, we propose a novel heterogeneous graph neural network called Spatial-Temporal-Aware Graph Transformer (STA-GT) for transaction fraud detection problems.
no code implementations • 11 Jul 2023 • Yue Tian, Guanjun Liu, Jiacun Wang, Mengchu Zhou
A neighbor sampling strategy is performed to filter noisy nodes and supplement information for fraudulent nodes.
no code implementations • 6 Sep 2021 • Minghui Pang, Qiuming Zhu, Fei Bai, Zhuo Li, Hanpeng Li, Kai Mao, Yue Tian
Based on the three-dimensional propagation characteristic under built-up scenarios, a height-dependent line-of-sight (LoS) probability model for air-to-ground (A2G) millimeter wave (mmWave) communications is proposed in this paper.