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README.md
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license: llama2
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---
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---
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license: llama2
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datasets:
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- MaLA-LM/PolyWrite
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- Davlan/sib200
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base_model:
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- meta-llama/Llama-2-7b-hf
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---
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# EMMA-500: Enhancing Massively Multilingual Adaptation of Large Language Models
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## Model Description
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**EMMA-500** is a state-of-the-art multilingual language model designed to improve language representation, especially in low-resource languages, through continual pre-training on the **Llama 2 7B** architecture. Leveraging the **MaLA Corpus**, which spans over 500 languages and 74 billion tokens, EMMA-500 excels in multilingual tasks like commonsense reasoning, machine translation, open-ended generation, and text classification.
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**EMMA-500** outperforms other Llama 2-based models in diverse multilingual settings while maintaining robustness in specialized tasks.
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---
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## Model Details
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- **Architecture**: Built on Llama 2 7B with enhanced language adaptation through continual pre-training.
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- **Languages**: Supports **546 languages** with substantial training data (over 100k tokens each).
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- **Data Mix**: A diverse mix of text from domains like code, books, instruction data, and more.
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- **Key Tasks**: Commonsense reasoning, machine translation, text classification, natural language inference, code generation, and open-ended generation.
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### Data Access
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- [MaLA Corpus](https://huggingface.co/datasets/MaLA-LM/MaLA)
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- [PolyWrite Benchmark](https://huggingface.co/datasets/MaLA-LM/PolyWrite)
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---
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## Usage
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You can use **EMMA-500** for multilingual text generation. Below is an example to generate text using the model:
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```python
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from transformers import AutoModelForCausalLM, AutoTokenizer
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model_name = "MaLA-LM/emma-500-llama2-7b"
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tokenizer = AutoTokenizer.from_pretrained(model_name)
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model = AutoModelForCausalLM.from_pretrained(model_name)
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input_text = "Once upon a time"
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inputs = tokenizer(input_text, return_tensors="pt")
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outputs = model.generate(**inputs)
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print(tokenizer.decode(outputs[0], skip_special_tokens=True))
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```
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---
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## Model Performance
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**EMMA-500** was evaluated across multiple benchmarks and tasks, demonstrating:
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- **Lowest negative log-likelihood** in intrinsic evaluations.
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- Significant improvements in **commonsense reasoning**, **machine translation**, and **open-ended generation**.
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- **Outperformed** all Llama 2-based models in **text classification** and **natural language inference**.
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- Enhanced performance in **code generation** and **machine reading comprehension (MRC)**.
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Challenges remain in low-resource languages, where the model tends to have higher **Self-BLEU** scores, indicating reduced output diversity.
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---
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