M3HF: Multi-agent Reinforcement Learning from Multi-phase Human Feedback of Mixed Quality

Fuente: arXiv
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Main Authors: Wang, Ziyan, Zhang, Zhicheng, Fang, Fei, Du, Yali
Format: Preprint
Published: 2025
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author Wang, Ziyan
Zhang, Zhicheng
Fang, Fei
Du, Yali
author_facet Wang, Ziyan
Zhang, Zhicheng
Fang, Fei
Du, Yali
contents Designing effective reward functions in multi-agent reinforcement learning (MARL) is a significant challenge, often leading to suboptimal or misaligned behaviors in complex, coordinated environments. We introduce Multi-agent Reinforcement Learning from Multi-phase Human Feedback of Mixed Quality ($\text{M}^3\text{HF}$), a novel framework that integrates multi-phase human feedback of mixed quality into the MARL training process. By involving humans with diverse expertise levels to provide iterative guidance, $\text{M}^3\text{HF}$ leverages both expert and non-expert feedback to continuously refine agents' policies. During training, we strategically pause agent learning for human evaluation, parse feedback using large language models to assign it appropriately and update reward functions through predefined templates and adaptive weights by using weight decay and performance-based adjustments. Our approach enables the integration of nuanced human insights across various levels of quality, enhancing the interpretability and robustness of multi-agent cooperation. Empirical results in challenging environments demonstrate that $\text{M}^3\text{HF}$ significantly outperforms state-of-the-art methods, effectively addressing the complexities of reward design in MARL and enabling broader human participation in the training process.
format Preprint
id arxiv_https___arxiv_org_abs_2503_02077
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle M3HF: Multi-agent Reinforcement Learning from Multi-phase Human Feedback of Mixed Quality
Wang, Ziyan
Zhang, Zhicheng
Fang, Fei
Du, Yali
Multiagent Systems
Artificial Intelligence
Machine Learning
Designing effective reward functions in multi-agent reinforcement learning (MARL) is a significant challenge, often leading to suboptimal or misaligned behaviors in complex, coordinated environments. We introduce Multi-agent Reinforcement Learning from Multi-phase Human Feedback of Mixed Quality ($\text{M}^3\text{HF}$), a novel framework that integrates multi-phase human feedback of mixed quality into the MARL training process. By involving humans with diverse expertise levels to provide iterative guidance, $\text{M}^3\text{HF}$ leverages both expert and non-expert feedback to continuously refine agents' policies. During training, we strategically pause agent learning for human evaluation, parse feedback using large language models to assign it appropriately and update reward functions through predefined templates and adaptive weights by using weight decay and performance-based adjustments. Our approach enables the integration of nuanced human insights across various levels of quality, enhancing the interpretability and robustness of multi-agent cooperation. Empirical results in challenging environments demonstrate that $\text{M}^3\text{HF}$ significantly outperforms state-of-the-art methods, effectively addressing the complexities of reward design in MARL and enabling broader human participation in the training process.
title M3HF: Multi-agent Reinforcement Learning from Multi-phase Human Feedback of Mixed Quality
topic Multiagent Systems
Artificial Intelligence
Machine Learning
url https://arxiv.org/abs/2503.02077