Fine-Tashkeel: Finetuning Byte-Level Models for Accurate Arabic Text Diacritization
Paper โข 2303.14588 โข Published
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Fine-Tashkeel: Finetuning Byte-Level Models for Accurate Arabic Text Diacritization
Table of Contents
Introduction
Most of previous work on learning diacritization of the Arabic language relied on training models from scratch. In this paper, we investigate how to leverage pre-trained language models to learn diacritization. We finetune token-free pre-trained multilingual models (ByT5) to learn to predict and insert missing diacritics in Arabic text, a complex task that requires understanding the sentence semantics and the morphological structure of the tokens. We show that we can achieve state-of-the-art on the diacritization task with minimal amount of training and no feature engineering, reducing WER by 40%. We release our finetuned models for the greater benefit of the researchers in the community.
Model Description
The ByT5 model, distinguished by its innovative token-free architecture, directly processes raw text to adeptly navigate diverse languages and linguistic nuances. Pre-trained on a comprehensive text corpus mc4, ByT5 excels in understanding and generating text, making it versatile for various NLP tasks. We have further enhanced its capabilities by fine-tuning it on a Tashkeela data set for 13,000 steps, significantly refining its performance in restoring the diacritical marks for Arabic.
Benchmarks
Note: This model has been trained specifically for use with Classical Arabic.
Our model attained a Diacritics Error Rate (DER) of 0.95 and a Word Error Rate (WER) of 2.49.
Code sample to use the model.
from transformers import AutoModelForSeq2SeqLM, AutoTokenizer
import pandas as pd
if __name__ == "__main__":
text = "ููู ุงูุญุงู"
model_name = "basharalrfooh/Fine-Tashkeel"
tokenizer = AutoTokenizer.from_pretrained(model_name)
model = AutoModelForSeq2SeqLM.from_pretrained(model_name)
input_ids = tokenizer(text, return_tensors="pt").input_ids
outputs = model.generate(input_ids, max_new_tokens=128)
decoded_output = tokenizer.decode(outputs[0], skip_special_tokens=True, clean_up_tokenization_spaces=False)
print("Generated output:", decoded_output)
Citation
@misc{alrfooh2023finetashkeel,
title={Fine-Tashkeel: Finetuning Byte-Level Models for Accurate Arabic Text Diacritization},
author={Bashar Al-Rfooh and Gheith Abandah and Rami Al-Rfou},
year={2023},
eprint={2303.14588},
archivePrefix={arXiv},
primaryClass={cs.CL}
}
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