Emulating human play in a leading mobile card game

Baier, Hendrik and Sattaur, Adam and Powley, Edward J. and Devlin, Sam and Rollason, Jeff and Cowling, Peter I. (2018) Emulating human play in a leading mobile card game. IEEE Transactions on Games, TBC. ISSN 2475-1510 (In Press)

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Abstract / Summary

Monte Carlo Tree Search (MCTS) has become a popular solution for game AI, capable of creating strong game playing opponents. However, the emergent playstyle of agents using MCTS is not neces- sarily human-like, believable or enjoyable. AI Factory Spades, currently the top rated Spades game in the Google Play store, uses a variant of MCTS to control AI allies and opponents. In collaboration with the developers, we showed in a previous study that the playstyle of human players significantly differed from that of the AI players [1]. This article presents a method for player modelling using gameplay data and neural networks that does not require domain knowledge, and a method of biasing MCTS with such a player model to create Spades playing agents that emulate human play whilst maintaining strong, competitive performance. The methods of player modelling and biasing MCTS presented in this study are applied to the commercial codebase of AI Factory Spades, and are transferable to MCTS implementations for discrete-action games where relevant gameplay data is available.

Item Type: Article
Identification Number: 10.1109/TG.2018.2835764
ISSN: 2475-1510
Subjects: Computer Science, Information & General Works
Technology > Digital Works > Digital Games
Depositing User: Edward Powley
Date Deposited: 22 May 2018 12:23
Last Modified: 31 Jul 2018 15:25
URI: http://repository.falmouth.ac.uk/id/eprint/2872

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