Transaction Fraud Detection via an Adaptive Graph Neural Network

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.

Feature Engineering Fraud Detection

Enhancing the Robustness of QMIX against State-adversarial Attacks

no code implementations • 3 Jul 2023 • Weiran Guo, Guanjun Liu, Ziyuan Zhou, Ling Wang, Jiacun Wang

To increase the robustness of multi-agent reinforcement learning (MARL) algorithms, we train models using a variety of attacks in this research.

Multi-agent Reinforcement Learning reinforcement-learning