Policy Gradient Pipeline
Policy gradient methods are one of the core paradigms in modern reinforcement learning. From REINFORCE to PPO, all policy gradient algorithms share the same pipeline. This chapter systematically dissects every component of this pipeline from first principles.
Contents:
- Complete Guide to Policy Gradient — Bias-variance tradeoff, rollout sampling, return computation, value estimation, GAE advantage estimation, policy optimization (TRPO/PPO/Natural Gradient), engineering tricks