Morphosyntactic Tagging with Pre-trained Language Models for Arabic and its Dialects

• URL: http://arxiv.org/abs/2110.06852v1
• Date: Wed, 13 Oct 2021 16:43:44 GMT
• Title: Morphosyntactic Tagging with Pre-trained Language Models for Arabic and its Dialects
• Authors: Go Inoue, Salam Khalifa, Nizar Habash
• Abstract summary: We present state-of-the-art results on morphosyntactic tagging across different varieties of Arabic using fine-tuned pre-trained language models. Our models consistently outperform existing systems in Modern Standard Arabic and all the Arabic dialects we study.
• Score: 17.063334758301902
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We present state-of-the-art results on morphosyntactic tagging across different varieties of Arabic using fine-tuned pre-trained transformer language models. Our models consistently outperform existing systems in Modern Standard Arabic and all the Arabic dialects we study, achieving 2.6% absolute improvement over the previous state-of-the-art in Modern Standard Arabic, 2.8% in Gulf, 1.6% in Egyptian, and 7.0% in Levantine. We explore different training setups for fine-tuning pre-trained transformer language models, including training data size, the use of external linguistic resources, and the use of annotated data from other dialects in a low-resource scenario. Our results show that strategic fine-tuning using datasets from other high-resource dialects is beneficial for a low-resource dialect. Additionally, we show that high-quality morphological analyzers as external linguistic resources are beneficial especially in low-resource settings.

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