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Memory-augmented Monte Carlo Tree Search

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This paper proposes and evaluates Memory-Augmented Monte Carlo Tree Search (M-MCTS), which provides a new approach to exploit generalization in online real-time search. The key idea of M-MCTS is to incorporate MCTS with a memory structure, where each entry contains information of a particular state. This memory is used to generate an approximate value estimation by combining the estimations of similar states. We show that the memory based value approximation is better than the vanilla Monte Carlo estimation with high probability under mild conditions. We evaluate MMCTS in the game of Go. Experimental results show that MMCTS outperforms the original MCTS with the same number of simulations.

Citation

C. Xiao, J. Mei, M. Müller. "Memory-augmented Monte Carlo Tree Search". National Conference on Artificial Intelligence (AAAI), (ed: Sheila A. McIlraith, Kilian Q. Weinberger), pp 1455-1462, February 2018.

Keywords:  
Category: In Conference
Web Links: AAI

BibTeX

@incollection{Xiao+al:AAAI18,
  author = {Chenjun Xiao and Jincheng Mei and Martin Müller},
  title = {Memory-augmented Monte Carlo Tree Search},
  Editor = {Sheila A. McIlraith, Kilian Q. Weinberger},
  Pages = {1455-1462},
  booktitle = {National Conference on Artificial Intelligence (AAAI)},
  year = 2018,
}

Last Updated: June 29, 2020
Submitted by Sabina P

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