@article{ontheproblemofbestarmretention,
  title = {On the Problem of Best Arm Retention},
  author = {Houshuang Chen and Yuchen He and Chihao Zhang},
  year = {2025},
  eprint = {2504.11866},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2504.11866v1},
}