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--- |
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license: cc-by-4.0 |
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pretty_name: 'Japanese Documents Dataset (PDF)' |
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language: |
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- ja |
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tags: |
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- pdf |
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- japanese |
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- document-understanding |
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- text-recognition |
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- ocr |
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- ai-research |
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- computer-vision |
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- text-extraction |
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size_categories: |
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- 1K<n<10K |
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--- |
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# Japanese Documents Dataset (PDF) |
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*This dataset contains a curated collection of Japanese-language documents in PDF format. The corpus includes textbooks, research papers, news articles, public-domain books, and government publications written in Japanese. It is intended to support AI research in OCR, document understanding, and multilingual text recognition.* |
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## Contact |
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For queries or collaborations related to this dataset, contact: |
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- [email protected] |
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- [email protected] |
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## Supported Tasks |
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- **Task Categories**: |
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- Document Classification |
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- OCR and Text Recognition |
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- Layout and Structure Analysis |
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- Language Modeling for Japanese |
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- **Supported Tasks**: |
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- Extraction of Japanese text from PDFs |
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- OCR for Kanji, Hiragana, and Katakana scripts |
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- Classification of documents by type (academic, literary, official, educational) |
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- Benchmarking AI systems for Japanese document parsing and layout understanding |
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## Languages |
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- **Primary Language**: Japanese |
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- **Secondary Presence**: English numerals, Romanized Japanese, and technical symbols (common in bilingual or academic PDFs) |
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## Dataset Creation |
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### Curation Rationale |
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The dataset was curated to improve AI systems’ ability to read and understand Japanese-language documents, including vertically written text and mixed-script layouts, enabling more accurate OCR and multilingual NLP research. |
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### Source Data |
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- **Contributors**: Open-access Japanese libraries, educational institutions, and public-domain repositories. |
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- **Collection Process**: PDFs were collected from publicly available sources with clear open licenses permitting use for research and AI model training. |
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### Other Known Limitations |
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- **Bias**: Primarily educational and official documents; limited representation of informal or handwritten material |
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- **Layout Complexity**: Some documents contain vertical text or mixed Japanese-English layouts that may challenge OCR accuracy |
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- **Script Variation**: Coverage includes modern Japanese; limited inclusion of historical or classical scripts |
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## Intended Uses |
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### ✅ Direct Use |
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- Training OCR systems for Japanese text recognition |
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- Research in document layout understanding and vertical text OCR |
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- Digitization and analysis of Japanese-language academic or archival materials |
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### ❌ Out-of-Scope Use |
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- Identifying or profiling individuals from document content |
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- Commercial redistribution of copyrighted PDFs |
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- Use in surveillance, handwriting identification, or behavioral analysis |
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## License |
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CC BY 4.0 |
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