@misc{fu2026textreg,
  title        = {TextReg: Mitigating Prompt Distributional Overfitting via Regularized Text-Space Optimization},
  author       = {Fu, Lucheng and Yu, Ye and Wang, Yiyang and Jin, Yiqiao and Jin, Haibo and Prakash, B. Aditya and Wang, Haohan},
  year         = {2026},
  eprint       = {2605.21318},
  archivePrefix= {arXiv},
  primaryClass = {cs.CL},
  url          = {https://arxiv.org/abs/2605.21318}
}