论文 · Score-Aware Policy-Gradient and Performance Guarantees Using Local Lyapunov Stability
基础信息
- 会议/期刊:Journal of Machine Learning Research 26 (2025), 1-74
- 关键词:policy gradient, score-aware gradient estimator, average reward RL, exponential family, Lyapunov stability, queueing systems
核心贡献:本文提出 Score-Aware Gradient Estimators (SAGEs),在 MDP stationary distribution 属于由 policy 参数化的 exponential family 时,利用 stationary score 直接估计 average-reward policy gradient,避免 value-function estimation,并用 local Lyapunov stability 证明含不稳定策略的可数状态空间中局部收敛与 regret 保证。