README.md

Chandra OCR Output - davanstrien/ufo-ocr-chandra

This dataset was created by processing images from davanstrien/ufo using the Chandra OCR model.

Model Information

• Model: Chandra (9B parameters, Qwen3VL-based)
• Accuracy: 83.1% on document benchmarks
• Strengths: Tables, old scans, long text documents
• OCR Mode: ocr_layout

Processing Configuration

• Temperature: 0.0 (initial), 0.3 (retry)
• Top-p: 0.1 (initial), 0.95 (retry)
• Max Output Tokens: 12384
• Batch Size: 28
• Bounding Box Scale: 1024

Output Columns

• chandra_markdown: Markdown text extracted from images
• inference_info: Metadata about the generation parameters

Generation Script

This dataset was generated using the UV script from: https://huggingface.co/datasets/uv-scripts/ocr

To reproduce:

uv run https://huggingface.co/datasets/uv-scripts/ocr/raw/main/chandra.py \
    davanstrien/ufo --output-dataset davanstrien/ufo-ocr-chandra --ocr-mode ocr_layout

Citation

If you use this dataset, please cite the Chandra model:

@article{chandra2024,
  title={Chandra: High-Accuracy OCR for Document Processing},
  author={DataLab Team},
  year={2024}
}