@article{whentoretrainafterdriftadataonlytestofpo,
  title = {When to Retrain after Drift: A Data-Only Test of Post-Drift Data Size Sufficiency},
  author = {Ren Fujiwara and Yasuko Matsubara and Yasushi Sakurai},
  year = {2026},
  eprint = {2603.09024},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2603.09024},
}