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Near-optimal Optimistic Reinforcement Learning using Empirical Bernstein Inequalities

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arxiv 1905.12425 v2 pith:MM3A6FHE submitted 2019-05-27 cs.LG cs.AIcs.GTstat.ML

classification cs.LGcs.AIcs.GTstat.ML
keywords algorithmlearningreinforcementucrl-vachievesadditionalalgorithmsassumptions
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abstract

We study model-based reinforcement learning in an unknown finite communicating Markov decision process. We propose a simple algorithm that leverages a variance based confidence interval. We show that the proposed algorithm, UCRL-V, achieves the optimal regret $\tilde{\mathcal{O}}(\sqrt{DSAT})$ up to logarithmic factors, and so our work closes a gap with the lower bound without additional assumptions on the MDP. We perform experiments in a variety of environments that validates the theoretical bounds as well as prove UCRL-V to be better than the state-of-the-art algorithms.

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Cited by 1 Pith paper

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  1. Asymptotically optimal regret in communicating Markov decision processes

    cs.LG 2025-05 conditional novelty 7.0 of 10

    The paper claims the first asymptotically optimal regret algorithm, achieving the exact logarithmic constant K(M), for average-reward communicating Markov decision processes.

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