@article{dglightdqnguidedgrpofinetuningoflargelan,
  title = {DGLight: DQN-Guided GRPO Fine-Tuning of Large Language Models for Traffic Signal Control},
  author = {Chenbo Yu},
  year = {2026},
  eprint = {2604.25259},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2604.25259},
}