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Utilizing Maximum Mean Discrepancy Barycenter for Propagating the Uncertainty of Value Functions in Reinforcement Learning
April 2, 2024, 7:42 p.m. | Srinjoy Roy, Swagatam Das
cs.LG updates on arXiv.org arxiv.org
Abstract: Accounting for the uncertainty of value functions boosts exploration in Reinforcement Learning (RL). Our work introduces Maximum Mean Discrepancy Q-Learning (MMD-QL) to improve Wasserstein Q-Learning (WQL) for uncertainty propagation during Temporal Difference (TD) updates. MMD-QL uses the MMD barycenter for this purpose, as MMD provides a tighter estimate of closeness between probability measures than the Wasserstein distance. Firstly, we establish that MMD-QL is Probably Approximately Correct in MDP (PAC-MDP) under the average loss metric. Concerning …
abstract accounting arxiv cs.lg difference exploration functions mean propagation q-learning reinforcement reinforcement learning temporal type uncertainty updates value work
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