An Online Feasible Point Method for Benign Generalized Nash Equilibrium Problems

Fuente: arXiv
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Main Authors: Sachs, Sarah, Hadiji, Hedi, van Erven, Tim, Staudigl, Mathias
Format: Preprint
Published: 2024
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author Sachs, Sarah
Hadiji, Hedi
van Erven, Tim
Staudigl, Mathias
author_facet Sachs, Sarah
Hadiji, Hedi
van Erven, Tim
Staudigl, Mathias
contents We consider a repeatedly played generalized Nash equilibrium game. This induces a multi-agent online learning problem with joint constraints. An important challenge in this setting is that the feasible set for each agent depends on the simultaneous moves of the other agents and, therefore, varies over time. As a consequence, the agents face time-varying constraints, which are not adversarial but rather endogenous to the system. Prior work in this setting focused on convergence to a feasible solution in the limit via integrating the constraints in the objective as a penalty function. However, no existing work can guarantee that the constraints are satisfied for all iterations while simultaneously guaranteeing convergence to a generalized Nash equilibrium. This is a problem of fundamental theoretical interest and practical relevance. In this work, we introduce a new online feasible point method. Under the assumption that limited communication between the agents is allowed, this method guarantees feasibility. We identify the class of benign generalized Nash equilibrium problems, for which the convergence of our method to the equilibrium is guaranteed. We set this class of benign generalized Nash equilibrium games in context with existing definitions and illustrate our method with examples.
format Preprint
id arxiv_https___arxiv_org_abs_2410_02400
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle An Online Feasible Point Method for Benign Generalized Nash Equilibrium Problems
Sachs, Sarah
Hadiji, Hedi
van Erven, Tim
Staudigl, Mathias
Machine Learning
We consider a repeatedly played generalized Nash equilibrium game. This induces a multi-agent online learning problem with joint constraints. An important challenge in this setting is that the feasible set for each agent depends on the simultaneous moves of the other agents and, therefore, varies over time. As a consequence, the agents face time-varying constraints, which are not adversarial but rather endogenous to the system. Prior work in this setting focused on convergence to a feasible solution in the limit via integrating the constraints in the objective as a penalty function. However, no existing work can guarantee that the constraints are satisfied for all iterations while simultaneously guaranteeing convergence to a generalized Nash equilibrium. This is a problem of fundamental theoretical interest and practical relevance. In this work, we introduce a new online feasible point method. Under the assumption that limited communication between the agents is allowed, this method guarantees feasibility. We identify the class of benign generalized Nash equilibrium problems, for which the convergence of our method to the equilibrium is guaranteed. We set this class of benign generalized Nash equilibrium games in context with existing definitions and illustrate our method with examples.
title An Online Feasible Point Method for Benign Generalized Nash Equilibrium Problems
topic Machine Learning
url https://arxiv.org/abs/2410.02400