arXiv:2502.09749cs.ROcs.AI2025-02中稿 · RSS24-W: TaskSpec被引 1

用投票机制优化大模型任务规划的执行顺序,减少重复调用,提升成功率。

Vote-Tree-Planner: Optimizing Execution Order in LLM-based Task Planning Pipeline via Voting

  • 通过投票加权选择关键路径,指导规划决策过程。
  • 在未见数据集上成功率达92.3%,减少47%的LLM查询次数。
  • 适合需要高效、稳定规划的机器人系统开发者。

将大语言模型(LLMs)融入闭环机器人任务规划已成为具身人工智能的热门方向。以往工作主要利用LLM强大的推理能力提升规划性能,却常因重复调用导致效率低下和可执行性差。本文探讨了LLM与规划系统的协同机制,旨在减少冗余并提升规划效果。基于Prog-Prompt和树形规划器(Tree-Planner)的思想,提出Vote-Tree-Planner采样策略,通过投票引导决策过程中的路径遍历。核心思想是:在决策中为不同代理赋予权重,可提前评估关键路径。该简单投票树结构显著提升成功率,并降低对LLM的调用次数。实验表明,该方法在未见数据集上平均成功率达到92.3%,目标条件召回率更高,且表现更稳定,验证了其在提升大模型规划系统准确性、可靠性与效率方面的潜力。

原文摘要 · Abstract (English)

Integrating large language models (LLMs) into closed-loop robotic task planning has become increasingly popular within embodied artificial intelligence. Previous efforts mainly focused on leveraging the strong reasoning abilities of LLMs to enhance task planning performance while often overlooking task planning efficiency and executability due to repetitive queries to LLMs. This paper addresses the synergy between LLMs and task planning systems, aiming to minimize redundancy while enhancing planning effectiveness. Specifically, building upon Prog-Prompt and the high-level concept of Tree-Planner, we propose Vote-Tree-Planner. This sampling strategy utilizes votes to guide plan traversal during the decision-making process. Our approach is motivated by a straightforward observation: assigning weights to agents during decision-making enables the evaluation of critical paths before execution. With this simple vote-tree construction, our method further improves the success rate and reduces the number of queries to LLMs. The experimental results highlight that our Vote-Tree-Planner demonstrates greater stability and shows a higher average success rate and goal condition recall on the unseen dataset compared with previous baseline methods. These findings underscore the potential of the Vote-Tree-Planner to enhance planning accuracy, reliability, and efficiency in LLM-based planning systems.

任务规划大模型机器人效率优化

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