Automatic Construction of Temporally Extended Actions for MDPs Using Bisimulation Metrics

  • Pablo Samuel Castro
  • Doina Precup
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7188)

Abstract

Temporally extended actions are usually effective in speeding up reinforcement learning. In this paper we present a mechanism for automatically constructing such actions, expressed as options [24], in a finite Markov Decision Process (MDP). To do this, we compute a bisimulation metric [7] between the states in a small MDP and the states in a large MDP, which we want to solve. The shape of this metric is then used to completely define a set of options for the large MDP. We demonstrate empirically that our approach is able to improve the speed of reinforcement learning, and is generally not sensitive to parameter tuning.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Pablo Samuel Castro
    • 1
  • Doina Precup
    • 1
  1. 1.School of Computer ScienceMcGill UniversityCanada

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