AAAI Publications, Eleventh Artificial Intelligence and Interactive Digital Entertainment Conference

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Monte-Carlo Tree Search for Persona Based Player Modeling
Christoffer Holmgård, Antonios Liapis, Julian Togelius, Georgios N. Yannakakis

Last modified: 2015-09-23


Is it possible to conduct player modeling without any players? In this paper we use Monte-Carlo Tree Search-controlled procedural personas to simulate a range of decision making styles in the puzzle game MiniDungeons 2. The purpose is to provide a method for synthetic play testing of game levels with synthetic players based on designer intuition and experience. Five personas are constructed, representing five different decision making styles archetypal for the game. The personas vary solely in the weights of decision-making utilities that describe their valuation of a set affordances in MiniDungeons 2. By configuring these weights using designer expert knowledge, and passing the configurations directly to the MCTS algorithm, we make the personas exhibit a number of distinct decision making and play styles.

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