LLMをMDP設計者として活用する依存関係考慮型エージェントフレームワークによるロボット方策の自動生成
LLMs as MDP Designers: A Dependency-Aware Agentic Framework for Automated Robot Policy Generation
LLMを実行時の意思決定者ではなく設計者として使い、自然言語タスクから強化学習パイプライン(MDP定式化とシミュレータ実装)を自動構築する依存関係考慮型フレームワークARPGを提案し、Isaac Simで有効性を示した。
詳しい要約
1. どんなもの?
2. 先行研究と比べてどこがすごい?
3. 技術・手法の肝は?
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著者: Hong Je-Gal, Jinwoo Kim, Chanbin Yi, Hyun-Suk Lee
分類: cs.RO, cs.AI
原文アブストラクト
We investigate the automated generation of executable robot reinforcement learning (RL) policies from natural-language task descriptions. Rather than using large language models (LLMs) as execution-time decision makers, we use them as designers that construct RL pipelines before deployment, including Markov decision process (MDP) formulation and simulator implementation. We identify a phase-wise structure in this problem: MDP formulation is dependency-structured and sequential, whereas simulator implementation becomes modular once the formulation is fixed. Based on this structure, we propose ARPG, a dependency-aware agentic framework that performs sequential MDP modeling, localized verification and correction, and simulator-structured implementation while externalizing intermediate artifacts. ARPG targets a key failure mode of automated policy generation: executable code may still yield non-learnable policies when state, action, reward, and termination artifacts are not semantically aligned. Experiments in Isaac Sim show that ARPG improves modeling correctness, environment executability, and policy-generation success compared with monolithic LLM baselines and off-the-shelf agentic systems. Additional demonstrations on custom robotics, standard RL, and engineering-domain MDPs further suggest that the same modeling pipeline can be reused beyond the main benchmark suite.