c4-benchfilter-nano / README.md
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metadata
language_creators:
  - found
language:
  - en
license: odc-by
source_datasets:
  - c4
task_categories:
  - text-generation
  - fill-mask
task_ids:
  - language-modeling
  - masked-language-modeling
dataset_info:
  features:
    - name: text
      dtype: string
    - name: score
      dtype: float64
  splits:
    - name: train
      num_bytes: 406518157.4620394
      num_examples: 302379
  download_size: 245358543
  dataset_size: 406518157.4620394
configs:
  - config_name: default
    data_files:
      - split: train
        path: data/train-*

The estimated top 10% of highest n-token (mean 3,4,5) overlaps for each of the selected benchmark datasets (arc, truthful_qa, hellaswag, mmlu, humaneval) based on 1k samples, within the first 3M samples of C4. The top scoring sample datasets for each benchmark are then filtered again for top 30% scores and combined and exact-match de-duplicated. Then the top 3% scores are removed because they likely have exact large n-token matches by chance such as exact dates or times that aren't actually relevant to the data. (todo)

This is meant to fascilitate a high-quality short continuation of pretraining for language models.