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README.md
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+
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## Model Description
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SHAMI-MT is a specialized machine translation model designed to translate from Modern Standard Arabic (MSA) to Syrian dialect. Built on the robust AraT5v2-base-1024 architecture, this model bridges the gap between formal Arabic and the rich dialectal variations of Syrian Arabic.
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## Model Details
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- **Model Type**: Sequence-to-Sequence Translation
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- **Base Model**: UBC-NLP/AraT5v2-base-1024
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- **Language**: Arabic (MSA → Syrian Dialect)
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- **License**: Apache 2.0
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- **Library**: Transformers
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## Dataset
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The model was trained on the **Nâbra** dataset, a comprehensive corpus of Syrian Arabic dialects with morphological annotations.
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### Nâbra Dataset Details
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**Citation:**
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```
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Nayouf, A., Hammouda, T., Jarrar, M., Zaraket, F., & Kurdy, M. B. (2023).
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Nâbra: Syrian Arabic dialects with morphological annotations.
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arXiv preprint arXiv:2310.17315.
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```
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**Key Statistics:**
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- **Tokens**: ~60,000 words
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- **Dialects Covered**: Multiple Syrian regional dialects including:
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- Aleppo
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- Damascus
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- Deir-ezzur
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- Hama
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- Homs
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- Huran
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- Latakia
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- Mardin
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- Raqqah
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- Suwayda
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**Data Sources:**
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- Social media posts
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- Movie and TV series scripts
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- Song lyrics
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- Local proverbs
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## Training Details
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The model was fine-tuned on the AraT5v2-base-1024 architecture with the following training metrics:
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- **Total Training Steps**: 10,384
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- **Epochs**: 22
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- **Final Training Loss**: 1.396
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- **Final Evaluation Loss**: 0.771
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- **Learning Rate**: Cosine schedule starting at 5e-5
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- **Batch Size**: 256
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- **Total FLOPs**: 1.58e+17
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### Training Progress
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The model showed consistent improvement throughout training:
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- Initial loss: 12.93 → Final loss: 1.40
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- Evaluation loss steadily decreased from 1.44 to 0.77
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- Gradient norms remained stable throughout training
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## Usage
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### Installation
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```bash
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pip install transformers torch
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```
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### Inference Code
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```python
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from transformers import T5Tokenizer, AutoModelForSeq2SeqLM
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# Load model and tokenizer
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tokenizer = T5Tokenizer.from_pretrained("Omartificial-Intelligence-Space/Shami-MT")
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model = AutoModelForSeq2SeqLM.from_pretrained("Omartificial-Intelligence-Space/Shami-MT")
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# Example usage
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ar_prompt = "مرحبا بك هنا" # MSA input
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input_ids = tokenizer(ar_prompt, return_tensors="pt").input_ids
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outputs = model.generate(input_ids)
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print("Input (MSA):", ar_prompt)
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print("Tokenized input:", tokenizer.tokenize(ar_prompt))
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print("Output (Syrian Dialect):", tokenizer.decode(outputs[0], skip_special_tokens=True))
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```
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### Generation Parameters
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For optimal results, you can adjust generation parameters:
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```python
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outputs = model.generate(
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input_ids,
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max_length=128,
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num_beams=4,
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temperature=0.7,
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do_sample=True,
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pad_token_id=tokenizer.pad_token_id,
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eos_token_id=tokenizer.eos_token_id
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)
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```
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### Evaluation Results
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- **Test Set**: 1,500 unseen sentences
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- **Evaluation Method**: GPT-4.1 as automated judge
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- **Average Score**: **4.01/5.0** ⭐
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- **Evaluation Criteria**: Translation quality, dialectal accuracy, and semantic preservation
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The model was evaluated using GPT-4.1 as an automated judge with the following structured prompt:
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```
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"You are a language evaluation assistant. Compare the predicted Shami sentence to the reference.
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Please return a rating from 0 to 5 and a short comment.
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MSA Input: [input sentence]
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Model Prediction (Shami dialect): [model output]
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Ground Truth (Shami dialect): [reference translation]
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Respond in this format:
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Score: <number from 0 to 5>
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Comment: <brief explanation of the score>"
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```
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**Score Distribution Analysis:**
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- **Excellent (5.0)**: High-quality translations with perfect dialectal conversion
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- **Good (4.0-4.9)**: Minor dialectal variations or stylistic differences
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- **Average (3.0-3.9)**: Acceptable translations with some dialectal inconsistencies
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- **Below Average (2.0-2.9)**: Noticeable errors in dialect or meaning
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- **Poor (0-1.9)**: Significant translation errors or loss of meaning
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### Performance Highlights
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- **Strong Dialectal Conversion**: Successfully transforms MSA into authentic Syrian dialect
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- **Semantic Preservation**: Maintains original meaning while adapting linguistic style
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- **Regional Adaptability**: Handles various Syrian sub-dialects effectively
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- **Consistent Quality**: Stable performance across different text types and domains
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## Applications
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This model is particularly useful for:
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- **Content Localization**: Adapting MSA content for Syrian audiences
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- **Cultural Preservation**: Maintaining and promoting Syrian dialectal variations
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- **Educational Tools**: Teaching differences between MSA and Syrian dialect
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- **Research**: Syrian Arabic NLP and dialectology studies
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## Regional Coverage
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The model handles multiple Syrian sub-dialects, making it versatile for different regions within Syria:
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🏛️ **Urban Centers**: Damascus, Aleppo
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🏔️ **Northern Regions**: Latakia, Mardin
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🏜️ **Eastern Areas**: Deir-ezzur, Raqqah
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🌄 **Central/Southern**: Hama, Homs, Huran, Suwayda
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## Limitations
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- Trained specifically on Syrian dialect variations
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- Performance may vary for other Arabic dialects
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- Limited to text-based translation (no speech support)
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- Dataset size constraints may affect handling of very rare dialectal expressions
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## Citation
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If you use this model in your research, please cite:
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```bibtex
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@misc{shami-mt-2024,
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title={SHAMI-MT: A Machine Translation Model From MSA to Syrian Dialect},
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author={Omartificial Intelligence Space},
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year={2024},
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publisher={Hugging Face},
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url={https://huggingface.co/Omartificial-Intelligence-Space/Shami-MT}
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}
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@article{nayouf2023nabra,
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title={Nâbra: Syrian Arabic dialects with morphological annotations},
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author={Nayouf, Amal and Hammouda, Tymaa Hasanain and Jarrar, Mustafa and Zaraket, Fadi A and Kurdy, Mohamad-Bassam},
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journal={arXiv preprint arXiv:2310.17315},
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year={2023}
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}
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```
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## Contact & Support
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For questions, issues, or contributions, please visit the [model repository](https://huggingface.co/Omartificial-Intelligence-Space/Shami-MT) or contact the development team.
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