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---
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language:
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- cs
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---
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## Introduction
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This is a validation set split off from the historical dataset included in [BUT-LCC](https://huggingface.co/datasets/BUT-FIT/BUT-LCC) corpus.
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Furthermore, to avoid direct contamination from BUT-LCC, this set is filtered against the historical dataset from BUT-LCC by our fuzzy deduplication pipeline.
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## Legal Information & Data Origin
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This dataset consists of OCR'd documents since 1850, publicly available from the [Czech Digital Library](https://www.digitalniknihovna.cz/). We use [PeroOCR](https://pero-ocr.fit.vutbr.cz/) for optical character recognition (OCR). CZLC members do not own the distributed documents.
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