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Policy Mirror Descent with Lookahead
March 22, 2024, 4:42 a.m. | Kimon Protopapas, Anas Barakat
cs.LG updates on arXiv.org arxiv.org
Abstract: Policy Mirror Descent (PMD) stands as a versatile algorithmic framework encompassing several seminal policy gradient algorithms such as natural policy gradient, with connections with state-of-the-art reinforcement learning (RL) algorithms such as TRPO and PPO. PMD can be seen as a soft Policy Iteration algorithm implementing regularized 1-step greedy policy improvement. However, 1-step greedy policies might not be the best choice and recent remarkable empirical successes in RL such as AlphaGo and AlphaZero have demonstrated that …
abstract algorithm algorithms art arxiv cs.ai cs.lg framework gradient improvement iteration natural policy ppo reinforcement reinforcement learning state stat.ml type
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