TR2MTL: LLM based framework for Metric Temporal Logic Formalization of Traffic Rules

Fuente: arXiv
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Main Authors: Manas, Kumar, Zwicklbauer, Stefan, Paschke, Adrian
Format: Preprint
Published: 2024
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author Manas, Kumar
Zwicklbauer, Stefan
Paschke, Adrian
author_facet Manas, Kumar
Zwicklbauer, Stefan
Paschke, Adrian
contents Traffic rules formalization is crucial for verifying the compliance and safety of autonomous vehicles (AVs). However, manual translation of natural language traffic rules as formal specification requires domain knowledge and logic expertise, which limits its adaptation. This paper introduces TR2MTL, a framework that employs large language models (LLMs) to automatically translate traffic rules (TR) into metric temporal logic (MTL). It is envisioned as a human-in-loop system for AV rule formalization. It utilizes a chain-of-thought in-context learning approach to guide the LLM in step-by-step translation and generating valid and grammatically correct MTL formulas. It can be extended to various forms of temporal logic and rules. We evaluated the framework on a challenging dataset of traffic rules we created from various sources and compared it against LLMs using different in-context learning methods. Results show that TR2MTL is domain-agnostic, achieving high accuracy and generalization capability even with a small dataset. Moreover, the method effectively predicts formulas with varying degrees of logical and semantic structure in unstructured traffic rules.
format Preprint
id arxiv_https___arxiv_org_abs_2406_05709
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle TR2MTL: LLM based framework for Metric Temporal Logic Formalization of Traffic Rules
Manas, Kumar
Zwicklbauer, Stefan
Paschke, Adrian
Robotics
Formal Languages and Automata Theory
Machine Learning
Traffic rules formalization is crucial for verifying the compliance and safety of autonomous vehicles (AVs). However, manual translation of natural language traffic rules as formal specification requires domain knowledge and logic expertise, which limits its adaptation. This paper introduces TR2MTL, a framework that employs large language models (LLMs) to automatically translate traffic rules (TR) into metric temporal logic (MTL). It is envisioned as a human-in-loop system for AV rule formalization. It utilizes a chain-of-thought in-context learning approach to guide the LLM in step-by-step translation and generating valid and grammatically correct MTL formulas. It can be extended to various forms of temporal logic and rules. We evaluated the framework on a challenging dataset of traffic rules we created from various sources and compared it against LLMs using different in-context learning methods. Results show that TR2MTL is domain-agnostic, achieving high accuracy and generalization capability even with a small dataset. Moreover, the method effectively predicts formulas with varying degrees of logical and semantic structure in unstructured traffic rules.
title TR2MTL: LLM based framework for Metric Temporal Logic Formalization of Traffic Rules
topic Robotics
Formal Languages and Automata Theory
Machine Learning
url https://arxiv.org/abs/2406.05709