| --- |
| language: |
| - tg |
| - fa |
| license: apache-2.0 |
| tags: |
| - parallel-corpus |
| - tajik-persian |
| - machine-translation |
| - bilingual |
| - translation |
| task_categories: |
| - translation |
| - sentence-similarity |
| - text-retrieval |
| pretty_name: Tajik-Persian Parallel Corpus (Full) |
| size_categories: |
| - 100K-1M |
| --- |
| |
| # TajPersParallelCorpusFull |
|
|
| ## 📖 Description |
|
|
| **Full version** of the Tajik–Persian parallel corpus, combining: |
|
|
| 1. **[TajPersParallelCorpus](https://huggingface.co/datasets/TajikNLPWorld/TajPersParallelCorpus)** – 328,253 sentence pairs from news, poetry, prose, and named entities |
| 2. **[TajPersParallelLexicalCorpus](https://huggingface.co/datasets/TajikNLPWorld/TajPersParallelLexicalCorpus)** – 175,130 lexical pairs with author attribution |
|
|
| After deduplication, the combined corpus contains **456,307 unique parallel pairs**. |
|
|
| ## 📊 Dataset Statistics |
|
|
| ### Overview |
| | Metric | Value | |
| |--------|-------| |
| | **Total pairs** | 456,307 | |
| | Unique Tajik entries | 433,345 | |
| | Unique Persian entries | 453,515 | |
| | Empty Tajik/Persian fields | 0 / 0 | |
|
|
| ### Length Statistics |
| | Metric | Tajik | Persian | |
| |--------|-------|---------| |
| | Avg characters | 40.0 | 33.4 | |
| | Max characters | 973 | 838 | |
| | Avg tokens (words) | 7.0 | 7.4 | |
| | Max tokens | 157 | 161 | |
|
|
| ### Category Distribution (Top 15) |
| | Category | Count | Percentage | |
| |----------|-------|------------| |
| | poetry_parts | 154,891 | 33.94% | |
| | masnavi | 38,972 | 8.54% | |
| | unique_tajik_words | 38,151 | 8.36% | |
| | Rumi | 31,275 | 6.85% | |
| | shahnameh | 24,819 | 5.44% | |
| | prose_parts | 23,936 | 5.25% | |
| | Dictionary | 23,907 | 5.24% | |
| | Ferdousi | 22,290 | 4.88% | |
| | paranames_per | 20,101 | 4.41% | |
| | Nezami | 14,926 | 3.27% | |
| | words | 14,292 | 3.13% | |
| | paranames_loc | 9,586 | 2.10% | |
| | Asadi | 7,797 | 1.71% | |
| | Saadi | 7,266 | 1.59% | |
| | Bidel | 4,443 | 0.97% | |
|
|
| ### Source Composition |
| The corpus is built from: |
| - **Original HF corpus**: 328,253 pairs (72.0% of unique pairs) |
| - **Lexical corpus**: 175,130 pairs (38.4% of unique pairs, ~47k duplicates removed) |
|
|
| ## 📁 Data Format |
|
|
| Each record contains three fields: |
|
|
| | Field | Type | Description | |
| |-------|------|-------------| |
| | `tajik` | string | Tajik text (Cyrillic script) | |
| | `farsi` | string | Persian text (Arabic script) | |
| | `category` | string | Source category (e.g., `poetry_parts`, `bbc`, `Dictionary`, `Rumi`) | |
|
|
| ### Category Values |
| - **Original categories**: `poetry_parts`, `masnavi`, `unique_tajik_words`, `shahnameh`, `prose_parts`, `paranames_*`, `bbc`, etc. |
| - **Lexical categories**: `+Saadi` format (e.g., `Assorted+Dictionary`, `BBC+Saadi`) |
|
|
| ## 🚀 Usage Example |
|
|
| ```python |
| from datasets import load_dataset |
| |
| # Load the full corpus |
| dataset = load_dataset("TajikNLPWorld/TajPersParallelCorpusFull") |
| data = dataset["train"] |
| |
| # Get first record |
| print(data[0]) |
| |
| # Filter by category |
| poetry = data.filter(lambda x: x["category"] == "poetry_parts") |
| bbc_news = data.filter(lambda x: x["category"] == "bbc") |
| lexical = data.filter(lambda x: "+" in x["category"]) # lexical entries have "source+author" |
| |
| print(f"Poetry pairs: {len(poetry)}") |
| print(f"BBC news pairs: {len(bbc_news)}") |
| print(f"Lexical pairs: {len(lexical)}") |
| ``` |
|
|
| ## 🔬 Applications |
|
|
| - **Machine Translation** – Tajik ↔ Persian |
| - **Cross-lingual Retrieval** – search in one language, retrieve from the other |
| - **Lexical Studies** – word-level alignments |
| - **Tokenization Evaluation** – test subword tokenizers on diverse domains |
| - **Linguistic Research** – syntax, morphology, semantics |
|
|
| ## 📜 License |
|
|
| Apache 2.0 |
|
|
| ## 🤝 Citation |
|
|
| ```bibtex |
| @dataset{tajpers_parallel_corpus_full_2026, |
| title = {TajPersParallelCorpusFull} – A Unified Tajik–Persian Parallel Corpus, |
| author = {TajikNLPWorld}, |
| year = {2026}, |
| publisher = {Hugging Face}, |
| url = {https://huggingface.co/datasets/TajikNLPWorld/TajPersParallelCorpusFull} |
| } |
| ``` |
|
|
| ## 📬 Contact |
|
|
| Open an issue on the [Hugging Face repository](https://huggingface.co/TajikNLPWorld/TajPersParallelCorpusFull) or contact the TajikNLPWorld team. |
|
|
| --- |
| *Generated by merging TajPersParallelCorpus and TajPersParallelLexicalCorpus with deduplication.* |
|
|
