README.md

metadata

pretty_name: LineEX
task_categories:
  - image-classification
  - object-detection
  - image-to-text
configs:
  - config_name: default
    data_files:
      - split: train
        path: data/train-*
      - split: test
        path: data/test-*

LineEX

This dataset repo contains:

• the uploaded train split with 397,993 images

• the released test split with 20,000 images

• Repo: 13point5/line-ex

Shared Schema

• image_id
• file_name
• image
• width
• height
• data_type
• chart_elements
• lines

chart_elements fields

• annotation_id
• category_id
• category_name
• bbox_xywh
• area
• text
• line_id

lines fields

• annotation_id
• category_id
• category_name
• line_name
• polyline_xy
• raw_series_xy
• area

Notes

• The repo uses a shared nested schema across splits.
• The train split is streamed directly from train.zip and uploaded as parquet shards to reduce local disk usage.
• The test split uses the 10-class chart-element mapping defined in the LineEX codebase.
• The train split uses a different chart-element label vocabulary, but the HF feature shape is identical.
• lines.line_name is derived from legend structure and may be null when the legend-text association is ambiguous.

License

This mirror does not assert a new license for the data. Verify redistribution terms with the original dataset authors before making the dataset public.