Momentum in Reinforcement Learning

Nino Vieillard; Bruno Scherrer; Olivier Pietquin; Matthieu Geist

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arXiv · 1910.09322

Momentum in Reinforcement Learning

Nino Vieillard·Bruno Scherrer·Olivier Pietquin·Matthieu Geist

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Abstract

We adapt the optimization's concept of momentum to reinforcement learning. Seeing the state-action value functions as an analog to the gradients in optimization, we interpret momentum as an average of consecutive $q$-functions. We derive Momentum Value Iteration (MoVI), a variation of Value Iteration that incorporates this momentum idea. Our analysis shows that this allows MoVI to average errors over successive iterations. We show that the proposed approach can be readily extended to deep learning. Specifically, we propose a simple improvement on DQN based on MoVI, and experiment it on Atari games.

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Nino Vieillard, Bruno Scherrer, Olivier Pietquin, Matthieu Geist. 2019-10-21. Momentum in Reinforcement Learning. https://arxiv.org/abs/1910.09322

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