Double Q(σ) and Q(σ, λ): Unifying Reinforcement Learning Control Algorithms

11/05/2017

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by   Markus Dumke, et al.

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Temporal-difference (TD) learning is an important field in reinforcement learning. Sarsa and Q-Learning are among the most used TD algorithms. The Q(σ) algorithm (Sutton and Barto (2017)) unifies both. This paper extends the Q(σ) algorithm to an online multi-step algorithm Q(σ, λ) using eligibility traces and introduces Double Q(σ) as the extension of Q(σ) to double learning. Experiments suggest that the new Q(σ, λ) algorithm can outperform the classical TD control methods Sarsa(λ), Q(λ) and Q(σ).