Improved Price of Anarchy via Predictions



Gkatzelis, Vasilis, Kollias, Kostas, Sgouritsa, Alkmini and Tan, Xizhi
(2022) Improved Price of Anarchy via Predictions. In: EC '22: The 23rd ACM Conference on Economics and Computation, 2022-7-11 - 2022-7-15, University of Colorado.

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Abstract

A central goal in algorithmic game theory is to analyze the performance of decentralized multiagent systems, like communication and information networks. In the absence of a central planner who can enforce how these systems are utilized, the users can strategically interact with the system, aiming to maximize their own utility, possibly leading to very inefficient outcomes, and thus a high price of anarchy. To alleviate this issue, the system designer can use decentralized mechanisms that regulate the use of each resource (e.g., using local queuing protocols or scheduling mechanisms), but with only limited information regarding the state of the system. These information limitations have a severe impact on what such decentralized mechanisms can achieve, so most of the success stories in this literature have had to make restrictive assumptions (e.g., by either restricting the structure of the networks or the types of cost functions). In this paper, we overcome some of the obstacles that the literature has imposed on decentralized mechanisms, by designing mechanisms that are enhanced with predictions regarding the missing information. Specifically, inspired by the big success of the literature on "algorithms with predictions", we design decentralized mechanisms with predictions and evaluate their price of anarchy as a function of the prediction error, focusing on two very well-studied classes of games: scheduling games and multicast network formation games.

Item Type: Conference or Workshop Item (Unspecified)
Divisions: Faculty of Science and Engineering > School of Electrical Engineering, Electronics and Computer Science
Depositing User: Symplectic Admin
Date Deposited: 14 Jun 2022 11:11
Last Modified: 29 Nov 2023 04:18
DOI: 10.1145/3490486.3538296
Open Access URL: https://dl.acm.org/doi/10.1145/3490486.3538296
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3156446