Learning to Communicate in Multi-Agent Reinforcement Learning : A Review

Mohamed Salah Zaïem; Etienne Bennequin

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arXiv · 1911.05438

Learning to Communicate in Multi-Agent Reinforcement Learning : A Review

Mohamed Salah Zaïem·Etienne Bennequin

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Abstract

We consider the issue of multiple agents learning to communicate through reinforcement learning within partially observable environments, with a focus on information asymmetry in the second part of our work. We provide a review of the recent algorithms developed to improve the agents' policy by allowing the sharing of information between agents and the learning of communication strategies, with a focus on Deep Recurrent Q-Network-based models. We also describe recent efforts to interpret the languages generated by these agents and study their properties in an attempt to generate human-language-like sentences. We discuss the metrics used to evaluate the generated communication strategies and propose a novel entropy-based evaluation metric. Finally, we address the issue of the cost of communication and introduce the idea of an experimental setup to expose this cost in cooperative-competitive game.

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Mohamed Salah Zaïem, Etienne Bennequin. 2019-11-13. Learning to Communicate in Multi-Agent Reinforcement Learning : A Review. https://arxiv.org/abs/1911.05438

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