MAESTRO: Open-Ended Environment Design for Multi-Agent Reinforcement Learning
Abstract
Open-ended learning methods that automatically generate a curriculum of increasingly challenging tasks serve as a promising avenue toward generally capable reinforcement learning agents. Existing methods adapt curricula independently over either environment parameters (in single-agent settings) or co-player policies (in multi-agent settings). However, the strengths and weaknesses of co-players can manifest themselves differently depending on environmental features. It is thus crucial to consider the dependency between the environment and co-player when shaping a curriculum in multi-agent domains. In this work, we use this insight and extend Unsupervised Environment Design (UED) to multi-agent environments. We then introduce Multi-Agent Environment Design Strategist for Open-Ended Learning (MAESTRO), the first multi-agent UED approach for two-player zero-sum settings. MAESTRO efficiently produces adversarial, joint curricula over both environments and co-players and attains minimax-regret guarantees at Nash equilibrium. Our experiments show that MAESTRO outperforms a number of strong baselines on competitive two-player games, spanning discrete and continuous control settings.
Cite
@article{arxiv.2303.03376,
title = {MAESTRO: Open-Ended Environment Design for Multi-Agent Reinforcement Learning},
author = {Mikayel Samvelyan and Akbir Khan and Michael Dennis and Minqi Jiang and Jack Parker-Holder and Jakob Foerster and Roberta Raileanu and Tim Rocktäschel},
journal= {arXiv preprint arXiv:2303.03376},
year = {2023}
}
Comments
International Conference on Learning Representations (ICLR) 2023