Datasets:
Tasks:
Image-to-Text
Formats:
parquet
Languages:
Finnish
Size:
10K - 100K
Tags:
parquet
DOI:
License:
File size: 1,343 Bytes
f6c8a96 cde943e f6c8a96 cde943e f6c8a96 cde943e f6c8a96 cde943e | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 | ---
license: cc-by-4.0
language:
- fi
task_categories:
- image-to-text
pretty_name: Theseus Finnish OCR Tiny
dataset_info:
features:
- name: pdf_file
dtype: string
- name: page
dtype: int32
- name: text
dtype: string
- name: image
dtype: image
splits:
- name: train
num_examples: 16618
tags:
- parquet
size_categories:
- 10K<n<100K
---
# Theseus Finnish OCR Dataset
Paragraph-level OCR dataset harvested from [Theseus.fi](https://www.theseus.fi),
the Finnish repository of university of applied sciences theses.
Each record is one paragraph crop extracted from a thesis PDF, paired with the
text extracted by `pdfplumber`.
## Image Resolution
Paragraph crops are rendered at **300 DPI** (dots per inch) with 2 px
padding on each side. At 300 DPI a standard A4 page is
2481 × 3507 pixels, giving high enough resolution for training
OCR and document-understanding models.
## Fields
| Field | Type | Description |
|-------|------|-------------|
| `pdf_file` | string | Source PDF filename |
| `page` | int | Page number (1-indexed) |
| `image` | Image | Paragraph crop at 300 DPI with 2 px padding on each side |
| `text` | string | Extracted paragraph text from `pdfplumber` |
## Source
Records were harvested via the Theseus OAI-PMH endpoint and 10 PDFs were
downloaded from the DSpace bitstream API. |