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Getting AI to Cooperate: Sharing a Critic in a Video Game

Bachelor thesis (2023)

Authors

J.J.H. Groenendijk Electrical Engineering, Mathematics and Computer Science

Contributors

Robert Loftin Interactive Intelligence (mentor)
Frans A. Oliehoek Interactive Intelligence (mentor)
K.A. Hildebrandt Computer Graphics and Visualisation (graduation committee member)
Faculty
Electrical Engineering, Mathematics and Computer Science, Electrical Engineering, Mathematics and Computer Science
Copyright: © 2023 Jelle Groenendijk
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Published Date

28-06-2023

Language

English

Reuse Rights

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Faculty

Electrical Engineering, Mathematics and Computer Science

Abstract

The popular video game "Overcooked" is a great example of a task requiring complex planning and cooperation with other players. This game is used as the inspiration for an environment for evaluating AI, called "Overcooked-AI". This paper implements a centralized critic into the Overcooked-AI environment's implementation of the PPO algorithm and compares the results with the decentralized critic approach when it comes to cooperation with human-like agents and computational efficiency. \\

The centralized critic approach gives similar results compared to the decentralized critic approach, both in self-play and when playing with human-like agents. This is probably due to the decentralized critic approach already having full access to the entire observation space, and no hyperparameter tuning being done due to a lack of time.

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