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LLMs fine-tuned for traffic control with critic-guided reinforcement learning

Researchers have developed DGLight, a novel framework that fine-tunes large language models for traffic signal control. This approach utilizes a Deep Q-Network critic to guide the optimization process, enabling the model to generate interpretable reasoning traces alongside signal decisions. Experiments in Jinan and Hangzhou demonstrated DGLight's superior performance compared to other LLM-based controllers and its competitiveness with established reinforcement learning methods, also showing good transferability to new city datasets. AI

影响 Introduces a novel method for applying LLMs to real-world control problems, potentially improving urban traffic management.

排序理由 Academic paper introducing a new framework for applying LLMs to traffic signal control.

在 arXiv cs.LG 阅读 →

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LLMs fine-tuned for traffic control with critic-guided reinforcement learning

报道来源 [2]

  1. arXiv cs.LG TIER_1 English(EN) · Chenbo Yu ·

    DGLight: DQN-Guided GRPO Fine-Tuning of Large Language Models for Traffic Signal Control

    arXiv:2604.25259v1 Announce Type: new Abstract: Traffic signal control (TSC) plays a central role in reducing congestion and maintaining urban mobility. This dissertation introduces DGLight, a critic-guided reinforcement-learning framework for adapting a pretrained large language…

  2. arXiv cs.LG TIER_1 English(EN) · Chenbo Yu ·

    DGLight: DQN-Guided GRPO Fine-Tuning of Large Language Models for Traffic Signal Control

    Traffic signal control (TSC) plays a central role in reducing congestion and maintaining urban mobility. This dissertation introduces DGLight, a critic-guided reinforcement-learning framework for adapting a pretrained large language model to TSC. DGLight first trains a CoLight-ba…