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--- |
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language: |
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- ja |
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tags: |
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- japanese |
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- kanji |
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- educational-grades |
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- jlpt |
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- joyo |
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- character-classification |
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task_categories: |
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- text-classification |
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size_categories: |
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- 1K<n<10K |
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license: mit |
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configs: |
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- config_name: default |
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data_files: |
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- split: train |
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path: "japanese_character_difficulty.csv" |
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dataset_info: |
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features: |
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- name: character |
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dtype: string |
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- name: grade |
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dtype: int64 |
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splits: |
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- name: train |
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num_examples: 3003 |
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--- |
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# Japanese Character Difficulty Dataset |
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A comprehensive dataset of 3,003 Japanese kanji characters with their educational difficulty grades, sourced from official Japanese educational standards and kanjiapi.dev. |
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## Dataset Overview |
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- **Total Characters**: 3,003 kanji |
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- **Source**: Japanese Ministry of Education (MEXT) Joyo Kanji list + kanjiapi.dev |
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- **Coverage**: Elementary grades 1-6, plus secondary education and advanced characters |
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- **Format**: Character-grade pairs for easy lookup and analysis |
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## Grade System |
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The dataset uses the Japanese educational grade system: |
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- **Grades 1-6**: Elementary school kanji (Joyo Kanji for primary education) |
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- **Grade 8**: Secondary school kanji (middle/high school level) |
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- **Grade 9**: Advanced kanji (beyond standard education, JLPT levels, Jinmeiyō kanji) |
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### Grade Distribution |
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| Grade | Count | Description | |
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|-------|-------|-------------| |
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| 1 | 80 | First grade elementary | |
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| 2 | 160 | Second grade elementary | |
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| 3 | 200 | Third grade elementary | |
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| 4 | 200 | Fourth grade elementary | |
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| 5 | 185 | Fifth grade elementary | |
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| 6 | 181 | Sixth grade elementary | |
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| 8 | 1,134 | Secondary school level | |
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| 9 | 863 | Advanced/specialized characters | |
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## Usage Examples |
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```python |
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from datasets import load_dataset |
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# Load the dataset |
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dataset = load_dataset("ronantakizawa/japanese-character-difficulty") |
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df = dataset['train'].to_pandas() |
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# Find elementary school kanji (grades 1-6) |
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elementary_kanji = df[df['grade'] <= 6] |
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print(f"Elementary kanji count: {len(elementary_kanji)}") |
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# Get all grade 1 kanji |
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grade1_kanji = df[df['grade'] == 1]['character'].tolist() |
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print(f"Grade 1 kanji: {''.join(grade1_kanji)}") |
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# Check difficulty of a specific character |
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char_grade = df[df['character'] == '漢']['grade'].iloc[0] |
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print(f"漢 is grade {char_grade}") |
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``` |
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## Applications |
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- **Language Learning**: Curriculum design and progression planning |
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- **Text Analysis**: Automatic difficulty assessment of Japanese texts |
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- **Educational Tools**: Kanji learning applications and games |
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- **Research**: Japanese language complexity studies |
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## Data Quality |
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- Sourced from official Japanese educational standards |
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- Cross-referenced with kanjiapi.dev comprehensive database |
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- Includes both Joyo (常用) and Jinmeiyō (人名用) kanji |
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- Covers JLPT levels N5-N1 characters |
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## Related Datasets |
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- [Japanese Text Difficulty Dataset](https://huggingface.co/datasets/ronantakizawa/japanese-text-difficulty) - Full text analysis using this character data |
