隠れた目標下でのゼロショット人間ロボット協調のための構造化LLM推論
Structured LLM Reasoning for Zero-Shot Human--Robot Coordination Under Hidden Goals
プライベートな目標を持つ協調建設タスクにおいて、LLMを用いた構造化アーキテクチャでゼロショットの人間ロボット協調を実現し、ToM推論や階層的計画などを組み合わせて、人間実験で効率性と信頼性を向上させた。
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著者: Dong Hae Mangalindan, Anand Gokhale, Francesco Bullo, Vaibhav Srivastava
分類: cs.RO, eess.SY
原文アブストラクト
We present a structured large-language-model (LLM) architecture for zero-shot human--robot coordination in a cooperative construction task with private goal views. Guided by a Dec-POMDP formulation, the architecture decomposes decision-making into (i) action-conditioned Theory-of-Mind (ToM) inference, (ii) hierarchical planning, (iii) conversation interpretation, (iv) action verification, and (v) feedback-based replanning. We compare the proposed method with an ablation without ToM inference and a multi-agent reinforcement-learning policy trained offline over many goal pairs. In human-participant experiments, the proposed method required fewer interaction steps and yielded higher post-interaction trust ratings than both baselines. These results suggest that systematically decomposing the team decision problem, using LLMs as tractable surrogates for otherwise intractable inference and planning computations, and retaining conventional verification for physical feasibility can improve both task coordination and the human experience.