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model_cards/asafaya/bert-medium-arabic/README.md
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language: arabic
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---
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# Arabic BERT Medium Model
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Pretrained BERT Medium language model for Arabic
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_If you use this model in your work, please cite this paper (to appear in 2020):_
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```
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@inproceedings{
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title={KUISAIL at SemEval-2020 Task 12: BERT-CNN for Offensive Speech Identification in Social Media},
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author={Safaya, Ali and Abdullatif, Moutasem and Yuret, Deniz},
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booktitle={Proceedings of the International Workshop on Semantic Evaluation (SemEval)},
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year={2020}
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}
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```
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## Pretraining Corpus
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`arabic-bert-medium` model was pretrained on ~8.2 Billion words:
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- Arabic version of [OSCAR](https://traces1.inria.fr/oscar/) - filtered from [Common Crawl](http://commoncrawl.org/)
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- Recent dump of Arabic [Wikipedia](https://dumps.wikimedia.org/backup-index.html)
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and other Arabic resources which sum up to ~95GB of text.
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__Notes on training data:__
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- Our final version of corpus contains some non-Arabic words inlines, which we did not remove from sentences since that would affect some tasks like NER.
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- Although non-Arabic characters were lowered as a preprocessing step, since Arabic characters does not have upper or lower case, there is no cased and uncased version of the model.
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- The corpus and vocabulary set are not restricted to Modern Standard Arabic, they contain some dialectical Arabic too.
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## Pretraining details
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- This model was trained using Google BERT's github [repository](https://github.com/google-research/bert) on a single TPU v3-8 provided for free from [TFRC](https://www.tensorflow.org/tfrc).
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- Our pretraining procedure follows training settings of bert with some changes: trained for 3M training steps with batchsize of 128, instead of 1M with batchsize of 256.
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## Load Pretrained Model
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You can use this model by installing `torch` or `tensorflow` and Huggingface library `transformers`. And you can use it directly by initializing it like this:
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```python
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from transformers import AutoTokenizer, AutoModel
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tokenizer = AutoTokenizer.from_pretrained("asafaya/bert-medium-arabic")
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model = AutoModel.from_pretrained("asafaya/bert-medium-arabic")
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```
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## Results
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For further details on the models performance or any other queries, please refer to [Arabic-BERT](https://github.com/alisafaya/Arabic-BERT)
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## Acknowledgement
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Thanks to Google for providing free TPU for the training process and for Huggingface for hosting this model on their servers 😊
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