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Home / Proceedings / Proceedings of the AAAI Conference on Artificial Intelligence, 29 / No.1: The Twenty-Ninth Conference on Artificial Intelligence

An Empirical Study on the Practical Impact of Prior Beliefs over Policy Types

March 8, 2023

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Authors

Stefano Albrecht

The University of Edinburgh


Jacob Crandall

Masdar Institute of Science and Technology


Subramanian Ramamoorthy

The University of Edinburgh


DOI:

10.1609/aaai.v29i1.9426


Abstract:

Many multiagent applications require an agent to learn quickly how to interact with previously unknown other agents. To address this problem, researchers have studied learning algorithms which compute posterior beliefs over a hypothesised set of policies, based on the observed actions of the other agents. The posterior belief is complemented by the prior belief, which specifies the subjective likelihood of policies before any actions are observed. In this paper, we present the first comprehensive empirical study on the practical impact of prior beliefs over policies in repeated interactions. We show that prior beliefs can have a significant impact on the long-term performance of such methods, and that the magnitude of the impact depends on the depth of the planning horizon. Moreover, our results demonstrate that automatic methods can be used to compute prior beliefs with consistent performance effects. This indicates that prior beliefs could be eliminated as a manual parameter and instead be computed automatically.

Topics: AAAI

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HOW TO CITE:

Stefano Albrecht|| Jacob Crandall|| Subramanian Ramamoorthy An Empirical Study on the Practical Impact of Prior Beliefs over Policy Types Proceedings of the AAAI Conference on Artificial Intelligence, 29 (2015) .

Stefano Albrecht|| Jacob Crandall|| Subramanian Ramamoorthy An Empirical Study on the Practical Impact of Prior Beliefs over Policy Types AAAI 2015, .

Stefano Albrecht|| Jacob Crandall|| Subramanian Ramamoorthy (2015). An Empirical Study on the Practical Impact of Prior Beliefs over Policy Types. Proceedings of the AAAI Conference on Artificial Intelligence, 29, .

Stefano Albrecht|| Jacob Crandall|| Subramanian Ramamoorthy. An Empirical Study on the Practical Impact of Prior Beliefs over Policy Types. Proceedings of the AAAI Conference on Artificial Intelligence, 29 2015 p..

Stefano Albrecht|| Jacob Crandall|| Subramanian Ramamoorthy. 2015. An Empirical Study on the Practical Impact of Prior Beliefs over Policy Types. "Proceedings of the AAAI Conference on Artificial Intelligence, 29". .

Stefano Albrecht|| Jacob Crandall|| Subramanian Ramamoorthy. (2015) "An Empirical Study on the Practical Impact of Prior Beliefs over Policy Types", Proceedings of the AAAI Conference on Artificial Intelligence, 29, p.

Stefano Albrecht|| Jacob Crandall|| Subramanian Ramamoorthy, "An Empirical Study on the Practical Impact of Prior Beliefs over Policy Types", AAAI, p., 2015.

Stefano Albrecht|| Jacob Crandall|| Subramanian Ramamoorthy. "An Empirical Study on the Practical Impact of Prior Beliefs over Policy Types". Proceedings of the AAAI Conference on Artificial Intelligence, 29, 2015, p..

Stefano Albrecht|| Jacob Crandall|| Subramanian Ramamoorthy. "An Empirical Study on the Practical Impact of Prior Beliefs over Policy Types". Proceedings of the AAAI Conference on Artificial Intelligence, 29, (2015): .

Stefano Albrecht|| Jacob Crandall|| Subramanian Ramamoorthy. An Empirical Study on the Practical Impact of Prior Beliefs over Policy Types. AAAI[Internet]. 2015[cited 2023]; .


ISSN: 2374-3468


Published by AAAI Press, Palo Alto, California USA
Copyright 2022, Association for the Advancement of
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101, Palo Alto, California 94303 All Rights Reserved

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