Datasets:
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README.md
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## Dataset Summary
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This dataset consists of structured metadata from the British Library [19th Century Digitised Books Collection](https://bl.iro.bl.uk/collections/b7fd2482-debd-4495-9494-72aa2ead00bb) (henceforth **blbooks**), a large collection of digitized books in the public domain.
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It has been created from the [OCR derived text + metadata version](https://doi.org/10.23636/r7w6-zy15) (henceforth **blbooks_derived**) of the [original dataset](https://bl.iro.bl.uk/collections/b7fd2482-debd-4495-9494-72aa2ead00bb), which is released under CC0 1.0 Universal Public Domain license. The complete implementation code is available at: [https://github.com/Text-Machine/data-processing-code](https://github.com/Text-Machine/data-processing-code).
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We have processed the records to include a genre label (`fiction` or `non-fiction`) assigned by [Gemma4-31b-it](https://huggingface.co/google/gemma-4-31B-it) based on the title. We also used the [`dedupe`](https://dedupe.io/) library to perform fuzzy string matching for duplicate detection. All duplicated records are grouped under the same `book_id`, and the one with the highest OCR quality is flagged as `best_version`.
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## Languages and Periods
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Records have been filtered to include only books tagged as written entirely in one of following languages: English, French, Spanish, Italian, Dutch, Russian.
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| Language | Number of
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| :------- | :---------------- |
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| English | 36924 |
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| French | 3734 |
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| Russian | 564 |
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| Dutch | 535 |
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| Period | Number of
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| :-------- | :---------------- |
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| 1510_1699 | 680 |
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| 1700_1799 | 1782 |
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| `place` | The place of publication (from *blbooks_derived*, field `place`). |
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| `mean_wc_ocr` | Word OCR quality averaged per record (from *blbooks_derived*, obtained by averaging the per-page mean word confidence values, field `mean_wc_ocr`). |
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| `std_wc_ocr` | Standard deviation of the word confidence values averaged per record (from *blbooks_derived*, obtained by averaging the per-page standard deviation values, field `std_wc_ocr`). |
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| `author` | Main author of the publication (from *blbooks_derived*, field `
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| `all_authors` | All names associated with the publication (from *blbooks_derived*, field `all names`). |
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| `publisher` | Publisher of the work (from *blbooks_derived*, field `Publisher`). |
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| `main_publication_country` | First country associated with publication (from *blbooks_derived*, field `Country of publication 1`). |
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## Dataset Summary
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This dataset consists of structured metadata from the British Library [19th Century Digitised Books Collection](https://bl.iro.bl.uk/collections/b7fd2482-debd-4495-9494-72aa2ead00bb) (henceforth **blbooks**), a large collection of digitized books in the public domain.
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It has been created from the [OCR derived text + metadata version](https://doi.org/10.23636/r7w6-zy15) (henceforth **blbooks_derived**) of the [original dataset](https://bl.iro.bl.uk/collections/b7fd2482-debd-4495-9494-72aa2ead00bb), which is released under CC0 1.0 Universal Public Domain license. The complete implementation code is available at: [https://github.com/Text-Machine/data-processing-code](https://github.com/Text-Machine/data-processing-code).
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We have processed the records to include a genre label (`fiction` or `non-fiction`) assigned by [Gemma4-31b-it](https://huggingface.co/google/gemma-4-31B-it) based on the title and the author. We also used the [`dedupe`](https://dedupe.io/) library to perform fuzzy string matching for duplicate detection. All duplicated records are grouped under the same `book_id`, and the one with the highest OCR quality is flagged as `best_version`.
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## Languages and Periods
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Records have been filtered to include only books tagged as written entirely in one of following languages: English, French, Spanish, Italian, Dutch, Russian.
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| Language | Number of records |
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| :------- | :---------------- |
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| English | 36924 |
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| French | 3734 |
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| Russian | 564 |
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| Dutch | 535 |
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Records per period (respecting original period split in *blbooks_derived*):
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| Period | Number of records |
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| :-------- | :---------------- |
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| 1510_1699 | 680 |
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| 1700_1799 | 1782 |
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| `place` | The place of publication (from *blbooks_derived*, field `place`). |
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| `mean_wc_ocr` | Word OCR quality averaged per record (from *blbooks_derived*, obtained by averaging the per-page mean word confidence values, field `mean_wc_ocr`). |
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| `std_wc_ocr` | Standard deviation of the word confidence values averaged per record (from *blbooks_derived*, obtained by averaging the per-page standard deviation values, field `std_wc_ocr`). |
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| `author` | Main author of the publication (from *blbooks_derived*, field `Name`). |
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| `all_authors` | All names associated with the publication (from *blbooks_derived*, field `all names`). |
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| `publisher` | Publisher of the work (from *blbooks_derived*, field `Publisher`). |
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| `main_publication_country` | First country associated with publication (from *blbooks_derived*, field `Country of publication 1`). |
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