Are You Diligent, Inefficient, or Malicious? A Self-Safeguarding Incentive Mechanism for Large-Scale Federated Industrial Maintenance Based on Double-Layer Reinforcement Learning. - Haitao Zhao 004; Mengqi Sui; Miao Liu 002; Chun Zhu; Wei Xun; Bangning Xu; Hongbo Zhu 002 (IEEE Internet Things J., 2024)