GDC 2014

GDC 2014 Session Scheduler

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Rolling the Dice: Leveraging Monte-Carlo Tree Search in Game AI

David Churchill  |  Ph.D. Student, Computing Science Department, University of Alberta, Canada
Peter Cowling  |  Professor of Computer Science, University of York, UK
Jeff Rollason  |  CEO and Co-Founder, AI Factory, Ltd.
Nathan Sturtevant  |  Assistant Professor, University of Denver

Location: Room 3007, West Hall

Format: Session
Track: AI Summit
Vault Recording: Video

As the complexity of potential state spaces that AI agents have to explore moves beyond more traditional games like chess, search-based approaches like minimax are no longer feasible to employ. Worse, when imperfect information is involved, the problem becomes largely intractable. What is needed is a way of exploring that multi-layered possibility space and coming up with a "good enough" answer, even if it isn't the "mathematically perfect" one, and still do it in a reasonable amount of time. Using examples from a suite of successful commercial mobile games, as well as the winner of the annual StarCraft AI Competition, this session explains how Monte-Carlo Tree Search (MCTS) works and how it has become a viable tool for AI agents in a wide variety of games.


Attendees will learn how they can leverage MCTS to improve the speed and complexity of their own AI agents.