Defining and Mitigating Collusion in Multi-Agent Systems

Published: 31 Oct 2023, Last Modified: 29 Nov 2023MASEC@NeurIPS'23 WiPPEveryoneRevisionsBibTeX
Keywords: collusion, multi-agent systems, multi-agent reinforcement learning, mechanism design
TL;DR: We define collusion in partially observable stochastic games and investigate three kinds of intervention to mitigate it.
Abstract: Collusion between learning agents is increasingly becoming a topic of concern with the advent of more powerful, complex multi-agent systems. In contrast to existing work in narrow settings, we present a general formalisation of collusion between learning agents in partially-observable stochastic games. We discuss methods for intervening on a game to mitigate collusion and provide theoretical as well as empirical results demonstrating the effectiveness of three such interventions.
Submission Number: 7
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