EgyBERT: A Large Language Model Pretrained on Egyptian Dialect Corpora

• URL: http://arxiv.org/abs/2408.03524v1
• Date: Wed, 7 Aug 2024 03:23:55 GMT
• Title: EgyBERT: A Large Language Model Pretrained on Egyptian Dialect Corpora
• Authors: Faisal Qarah,
• Abstract summary: This study presents EgyBERT, an Arabic language model pretrained on 10.4 GB of Egyptian dialectal texts. EgyBERT achieved the highest average F1-score of 84.25% and an accuracy of 87.33%. This is the first study to evaluate the performance of various language models on Egyptian dialect datasets.
• Score: 0.0
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: This study presents EgyBERT, an Arabic language model pretrained on 10.4 GB of Egyptian dialectal texts. We evaluated EgyBERT's performance by comparing it with five other multidialect Arabic language models across 10 evaluation datasets. EgyBERT achieved the highest average F1-score of 84.25% and an accuracy of 87.33%, significantly outperforming all other comparative models, with MARBERTv2 as the second best model achieving an F1-score 83.68% and an accuracy 87.19%. Additionally, we introduce two novel Egyptian dialectal corpora: the Egyptian Tweets Corpus (ETC), containing over 34.33 million tweets (24.89 million sentences) amounting to 2.5 GB of text, and the Egyptian Forums Corpus (EFC), comprising over 44.42 million sentences (7.9 GB of text) collected from various Egyptian online forums. Both corpora are used in pretraining the new model, and they are the largest Egyptian dialectal corpora to date reported in the literature. Furthermore, this is the first study to evaluate the performance of various language models on Egyptian dialect datasets, revealing significant differences in performance that highlight the need for more dialect-specific models. The results confirm the effectiveness of EgyBERT model in processing and analyzing Arabic text expressed in Egyptian dialect, surpassing other language models included in the study. EgyBERT model is publicly available on \url{https://huggingface.co/faisalq/EgyBERT}.

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