Robo-Instruct: Simulator-Augmented Instruction Alignment For Finetuning Code LLMs

• URL: http://arxiv.org/abs/2405.20179v3
• Date: Fri, 11 Apr 2025 19:55:48 GMT
• Title: Robo-Instruct: Simulator-Augmented Instruction Alignment For Finetuning Code LLMs
• Authors: Zichao Hu, Junyi Jessy Li, Arjun Guha, Joydeep Biswas,
• Abstract summary: We introduce ROBO-INSTRUCT, which synthesizes task-specific simulation environments on the fly during program execution.<n>ROBO-INSTRUCT integrates an LLM-aided post-processing procedure to refine instructions for better alignment with robot programs.
• Score: 42.31298987176411
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Code LLMs have shown promising results with converting tasks in natural language to programs that can be executed by service robots. We are interested in finetuning small, specialized LLMs for this purpose, but collecting datasets of task-program pairs specific to each robot is time-consuming and expensive. While approaches such as SELF-INSTRUCT and EVOL-INSTRUCT are capable of generating novel tasks given a few examples, they are unable to provide the corresponding programs that correctly abide by physical-world and robot-constraints using the provided programming interface. Using a simulator is a natural potential solution to checking for such constraints, but building simulation environments that can handle arbitrary tasks and their necessary objects and locations, is challenging. To address these challenges, we introduce ROBO-INSTRUCT, which synthesizes task-specific simulation environments on the fly during program execution, by opportunistically inferring entity properties and enforcing corresponding constraints based on how the entities are used in the task program. Additionally, ROBO-INSTRUCT integrates an LLM-aided post-processing procedure to refine instructions for better alignment with robot programs. We demonstrate the effectiveness of ROBO-INSTRUCT across multiple LLMs, showing that our fine-tuned models outperform all baseline methods and even match or surpass the performance of several larger and proprietary models.

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