LAMARL: LLM-Aided Multi-Agent Reinforcement Learning for Cooperative Policy Generation

Fuente: arXiv
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Autori principali: Zhu, Guobin, Zhou, Rui, Ji, Wenkang, Zhao, Shiyu
Natura: Preprint
Pubblicazione: 2025
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author Zhu, Guobin
Zhou, Rui
Ji, Wenkang
Zhao, Shiyu
author_facet Zhu, Guobin
Zhou, Rui
Ji, Wenkang
Zhao, Shiyu
contents Although Multi-Agent Reinforcement Learning (MARL) is effective for complex multi-robot tasks, it suffers from low sample efficiency and requires iterative manual reward tuning. Large Language Models (LLMs) have shown promise in single-robot settings, but their application in multi-robot systems remains largely unexplored. This paper introduces a novel LLM-Aided MARL (LAMARL) approach, which integrates MARL with LLMs, significantly enhancing sample efficiency without requiring manual design. LAMARL consists of two modules: the first module leverages LLMs to fully automate the generation of prior policy and reward functions. The second module is MARL, which uses the generated functions to guide robot policy training effectively. On a shape assembly benchmark, both simulation and real-world experiments demonstrate the unique advantages of LAMARL. Ablation studies show that the prior policy improves sample efficiency by an average of 185.9% and enhances task completion, while structured prompts based on Chain-of-Thought (CoT) and basic APIs improve LLM output success rates by 28.5%-67.5%. Videos and code are available at https://windylab.github.io/LAMARL/
format Preprint
id arxiv_https___arxiv_org_abs_2506_01538
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle LAMARL: LLM-Aided Multi-Agent Reinforcement Learning for Cooperative Policy Generation
Zhu, Guobin
Zhou, Rui
Ji, Wenkang
Zhao, Shiyu
Robotics
Artificial Intelligence
Although Multi-Agent Reinforcement Learning (MARL) is effective for complex multi-robot tasks, it suffers from low sample efficiency and requires iterative manual reward tuning. Large Language Models (LLMs) have shown promise in single-robot settings, but their application in multi-robot systems remains largely unexplored. This paper introduces a novel LLM-Aided MARL (LAMARL) approach, which integrates MARL with LLMs, significantly enhancing sample efficiency without requiring manual design. LAMARL consists of two modules: the first module leverages LLMs to fully automate the generation of prior policy and reward functions. The second module is MARL, which uses the generated functions to guide robot policy training effectively. On a shape assembly benchmark, both simulation and real-world experiments demonstrate the unique advantages of LAMARL. Ablation studies show that the prior policy improves sample efficiency by an average of 185.9% and enhances task completion, while structured prompts based on Chain-of-Thought (CoT) and basic APIs improve LLM output success rates by 28.5%-67.5%. Videos and code are available at https://windylab.github.io/LAMARL/
title LAMARL: LLM-Aided Multi-Agent Reinforcement Learning for Cooperative Policy Generation
topic Robotics
Artificial Intelligence
url https://arxiv.org/abs/2506.01538