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Algorithm selection using reinforcement learning

Lagoudakis Michael, Littman, M.

Πλήρης Εγγραφή

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Περίληψη

Many computational problems can be solved bymultiple algorithms, with different algorithmsfastest for different problem sizes, input distributions,and hardware characteristics. We considerthe problem of algorithm selection: dynamicallychoose an algorithm to attack an instanceof a problem with the goal of minimizingthe overall execution time. We formulate theproblem as a kind of Markov decision process(MDP), and use ideas from reinforcement learningto solve it. This paper introduces a kind ofMDP that models the algorithm selection problemby allowing multiple state transitions. The wellknown Q-learning algorithm is adapted for thiscase in a way that combines both Monte-Carloand Temporal Difference methods. Also, thiswork uses, and extends in a way to control problems,the Least-Squares Temporal Difference algorithm(LSTD(0)) of Boyan. The experimentalstudy focuses on the classic problems of orderstatistic selection and sorting. The encouragingresults reveal the potential of applying learningmethods to traditional computational problems.

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