@article{promptoptimizationwithloggedbanditdata,
  title = {Prompt Optimization with Logged Bandit Data},
  author = {Haruka Kiyohara and Daniel Yiming Cao and Yuta Saito and Thorsten Joachims},
  year = {2025},
  eprint = {2504.02646},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2504.02646v1},
}