| # Dataset Card: finepdfs-cy-errors |
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| ## Description |
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| This dataset contains Welsh-language text extracted from PDFs using rolmOCR, with automated spelling and grammar error annotations generated by Cysill (the Welsh spell checker). The dataset is derived from the Welsh (cym_Latn) subset of HuggingFaceFW/finepdfs, filtered to include only documents processed with the rolmOCR extractor. |
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| ## Dataset Statistics |
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| ### Corpus Size |
| - **Total number of words**: 1,575,836 |
| - **Total number of errors found with Cysill**: 73,574 |
| - **Number of documents**: 183 |
| - **Average words per document**: 8611.13 |
| - **Average errors per document**: 402.04 |
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| ### Processing Details |
| - **Source dataset**: HuggingFaceFW/finepdfs (cym_Latn subset, test split) |
| - **Extractor filter**: rolmOCR only |
| - **Spell checker**: Cysill v2 API |
| - **Language**: Welsh (Cymraeg) |
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| ## Fields |
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| - `text`: The extracted text content from the PDF |
| - `cysill_errors`: List of error objects returned by Cysill API |
| - `cysill_errors_count`: Number of errors detected in the text |
| - (Additional fields inherited from finepdfs dataset) |
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| ## Processing Configuration |
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| - Cysill API configuration: |
| - Format: text |
| - Language: cy (Welsh) |
| - Max errors per chunk: 1000 |
| - Accept English: true |
| - Chunk size: 50,000 characters (split by paragraphs) |
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| ## Usage |
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| This dataset can be used for: |
| - Evaluating OCR quality for Welsh-language documents |
| - Analyzing common spelling and grammar errors in Welsh text |
| - Training or evaluating spell-checking and grammar-checking models for Welsh |
| - Assessing the quality of PDF text extraction methods |
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| ## Hub Location |
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| `techiaith/finepdfs-cy-errors` |
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