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Describe, Explain, Plan and Select: Interactive Planning with Large Language Models Enables Open-World Multi-Task Agents

2023/02/03 by Zihao Wang, Shaofei Cai, Wang, Zihao +8 · 79 citations
Computer Science · #Artificial Intelligence (cs.AI) #FOS: Computer and information sciences #Multimodal Machine Learning Applications #Natural Language Processing Techniques #Topic Modeling

paper · pdf · doi:10.48550/arxiv.2302.01560

openalex publication_date 2023/02/03 · openalex created_date 2023/02/08 · openalex updated_date 2026/07/28

Abstract

We investigate the challenge of task planning for multi-task embodied agents in open-world environments. Two main difficulties are identified: 1) executing plans in an open-world environment (e.g., Minecraft) necessitates accurate and multi-step reasoning due to the long-term nature of tasks, and 2) as vanilla planners do not consider how easy the current agent can achieve a given sub-task when ordering parallel sub-goals within a complicated plan, the resulting plan could be inefficient or even infeasible. To this end, we propose "\underlineDescribe, \underlineExplain, \underlinePlan and \underlineSelect" (DEPS), an interactive planning approach based on Large Language Models (LLMs). DEPS facilitates better error correction on initial LLM-generated plan by integrating description of the plan execution process and providing self-explanation of feedback when encountering failures during the extended planning phases. Furthermore, it includes a goal selector, which is a trainable module that ranks parallel candidate sub-goals based on the estimated steps of completion, consequently refining the initial plan. Our experiments mark the milestone of the first zero-shot multi-task agent that can robustly accomplish 70+ Minecraft tasks and nearly double the overall performances. Further testing reveals our method's general effectiveness in popularly adopted non-open-ended domains as well (i.e., ALFWorld and tabletop manipulation). The ablation and exploratory studies detail how our design beats the counterparts and provide a promising update on the ObtainDiamond grand challenge with our approach. The code is released at https://github.com/CraftJarvis/MC-Planner.

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