Provable Benefits of Actor-Critic Methods for Offline Reinforcement Learning
Andrea Zanette · Martin Wainwright · Emma Brunskill
2021 Poster & Spotlight Talk
in
Workshop: Workshop on Reinforcement Learning Theory
in
Workshop: Workshop on Reinforcement Learning Theory
Abstract
Actor-critic methods are widely used in offline reinforcement learning practice but are understudied theoretically. In this work we show that the pessimism principle can be naturally incorporated into actor-critic formulations. We create an offline actor-critic algorithm for a linear MDP model more general than the low-rank model. The procedure is both minimax optimal and computationally tractable.
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