r/MachineLearning
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PIRL: From Open-Loop Exploration to Closed-Loop Reinforcement Learning [R]
TL;DR: Most RL post-training algorithms optimize the current batch and move on. But after an update, did the new policy actually become better? We introduce Policy Improvement Reinforcement Learning (PIRL) and its practical implementation, Policy Improvement Policy Optimization (PIPO)—a plug-and-play framework that let