Data Mixture Inference Attack: BPE Tokenizers Reveal Training Data Compositions

J. Hayase, Alisa Liu, Yejin Choi, Sewoong Oh, Noah A. Smith
2/3/2026

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@article{hayase2026data,
  title  = {Data Mixture Inference Attack: BPE Tokenizers Reveal Training Data Compositions},
  author = {J. Hayase and Alisa Liu and Yejin Choi and Sewoong Oh and Noah A. Smith},
  year   = {2026},
  url    = {https://www.semanticscholar.org/paper/7c58abcba87e304324c762d6936ae1d50aef69bd},
  journal = {NEURIPS 2024 2024}
}

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