[Source](https://sheaf.us/scoreboard-parse-flows.html)

Scoreboard

# Parse flows: how a page is read, step by step

The steps of each parse flow, by OCR and from a PDF's own text, and each flow's speed.

Its key points, its tables, how it was scored and its log load from [/api/public/scoreboards/parse-flows](/api/public/scoreboards/parse-flows).

## Test documents

The speed table needs no test set: each flow is timed on the public filings of the sample cases on sheaf.us, court filings and SEC filings. The digital pages are from [Test set A](test-set-cfpb-disclosures-digital-and-image.md) and [Test set B](test-set-cfpb-tables-side-by-side-digital-and-image.md): each page with a numbered bounding box on every checked value, and the answers.

## Glossary

| Term | Definition |
| --- | --- |
| OCR | Optical character recognition: reading the text, tables and marks of a page from its image or PDF. |
| engine | An OCR product or model that reads a page and returns its text, such as Mistral OCR, Landing AI or Reducto. |
| block | One part of a page as an engine returns it: a paragraph, a table, a heading or a figure. |
| bounding box | The rectangle that marks where something is printed on the page. |
| table cell | One value of a table, where a row and a column meet. |
| form field | A label on a form and the value written for it. |
| grounding | Linking each value of a reading to its bounding box on the page. |
| ground truth | The correct answers for a page, one fact per value, checkbox, choice or signature. Every reading is scored against them. |
| test set | The pages a scoreboard is measured on, with their ground truth. |
| grader | The program or model that compares a reading with the ground truth and counts what is right. |