Dataset Card for FinerWeb-10BT

Dataset Details

Dataset Description

This dataset extends the FineWeb-10BT sample (10 billion tokens) by adding quality scores for each line of text. Each document has been enhanced with line-level quality scores derived from an LLM-based filtering pipeline that identifies high and low-quality content.

• Curated by: Erik Henriksson*, Otto Tarkka*, Filip Ginter (University of Turku, *Equal contribution.)
• Language(s): English
• License: apache-2.0

Dataset Sources

• Repository: https://huggingface.co/datasets/TurkuNLP/finerweb-10bt
• Model: https://huggingface.co/TurkuNLP/finerweb-quality-classifier
• Paper: https://arxiv.org/abs/2501.07314

Dataset Structure

The dataset follows the original FineWeb-10BT structure with an additional line_quality key for each document. This key contains a list of floating-point scores (0.0 to 1.0) corresponding to each line in the document (obtained by splitting the document's text on newlines). Higher scores indicate higher quality content, with scores closer to 1.0 representing clean, natural language text, and lower scores indicating content like formatting artifacts, copyright notices, or navigation elements.

Dataset Creation

Source Data

Data Collection and Processing

Quality scores were generated through a pipeline that:

1. Used GPT-4o mini to label a 20,000-document sample
2. Trained a DeBERTa-v3 classifier on the labeled data
3. Applied the classifier to generate quality scores for each line in the full dataset

Bias, Risks, and Limitations

The quality scores inherit some biases from the LLMs used in the labeling process. Users should note that the distinction between high and low-quality content can be subjective, and the scores should be interpreted as guidelines rather than absolute measures.

Citation

@misc{henriksson2025finerweb10btrefiningwebdata,
      title={FinerWeb-10BT: Refining Web Data with LLM-Based Line-Level Filtering}, 
      author={Erik Henriksson and Otto Tarkka and Filip Ginter},
      year={2025},
      eprint={2501.07314},
      archivePrefix={arXiv},
      primaryClass={cs.CL},
      url={https://arxiv.org/abs/2501.07314}, 
}