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Dataset Card for TinyCorpus

Dataset Details

Dataset Description

  • Curated by: Lucas S
  • Language(s) (NLP): English
  • License: apache-2.0

Uses

This dataset comprises ~250B bytes of high quality text data. Should be used to train very small (<50M parameters) byte-level English models for educational purposes and to iterate on experimental LLM architectures quickly.

Dataset Structure

The text is encoded in UTF-8 format, with \x02 (STX) and \x03 (ETX) as the start and end special bytes respectively.

Dataset Creation

Curation Rationale

There is a lack of modern pretraining mixtures for very small byte-level language models.

Source Data

  • 55% FineWeb Edu
  • 35% DCLM Edu
  • 10% FineMath
  • 1% Filtered StarCoderData Python (Educational Score ≥3 as in Smollm Corpus)
  • 0.1% WritingPrompts Curated
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