Transfer in Reinforcement Learning via Markov Logic Networks

Lisa Torrey, Jude Shavlik, Sriraam Natarajan, Pavan Kuppili, Trevor Walker

We propose the use of statistical relational learning, and in particular the formalism of Markov Logic Networks, for transfer in reinforcement learning. Our goal is to extract relational knowledge from a source task and use it to speed up learning in a related target task. We do so by learning a Markov Logic Network that describes the source-task Q-function, and then using it for decision making in the early learning stages of the target task. Through experiments in the RoboCup simulated-soccer domain, we show that this approach can provide a substantial performance benefit in the target task.

Subjects: 12. Machine Learning and Discovery; 12.1 Reinforcement Learning

Submitted: May 4, 2008


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