@article{mitigatingselectionbiasinlargelanguagemo,
  title = {Mitigating Selection Bias in Large Language Models via Permutation-Aware GRPO},
  author = {Jinquan Zheng and Jia Yuan and Jiacheng Yao and Chenyang Gu and Pujun Zheng and Guoxiu He},
  year = {2026},
  eprint = {2603.21016},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2603.21016},
}