@article{trextokenizerregressionforoptimaldatamix,
  title = {TREX: Tokenizer Regression for Optimal Data Mixture},
  author = {Inho Won and Hangyeol Yoo and Minkyung Cho and Jungyeul Park and Hoyun Song and KyungTae Lim},
  year = {2026},
  eprint = {2601.13588},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2601.13588},
}