Bridging Dialects: Translating Standard Bangla to Regional Variants Using Neural Models

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Main Authors: Khandaker, Md. Arafat Alam, Raha, Ziyan Shirin, Paul, Bidyarthi, Muhammad, Tashreef
Format: Preprint
Published: 2025
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author Khandaker, Md. Arafat Alam
Raha, Ziyan Shirin
Paul, Bidyarthi
Muhammad, Tashreef
author_facet Khandaker, Md. Arafat Alam
Raha, Ziyan Shirin
Paul, Bidyarthi
Muhammad, Tashreef
contents The Bangla language includes many regional dialects, adding to its cultural richness. The translation of Bangla Language into regional dialects presents a challenge due to significant variations in vocabulary, pronunciation, and sentence structure across regions like Chittagong, Sylhet, Barishal, Noakhali, and Mymensingh. These dialects, though vital to local identities, lack of representation in technological applications. This study addresses this gap by translating standard Bangla into these dialects using neural machine translation (NMT) models, including BanglaT5, mT5, and mBART50. The work is motivated by the need to preserve linguistic diversity and improve communication among dialect speakers. The models were fine-tuned using the "Vashantor" dataset, containing 32,500 sentences across various dialects, and evaluated through Character Error Rate (CER) and Word Error Rate (WER) metrics. BanglaT5 demonstrated superior performance with a CER of 12.3% and WER of 15.7%, highlighting its effectiveness in capturing dialectal nuances. The outcomes of this research contribute to the development of inclusive language technologies that support regional dialects and promote linguistic diversity.
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id arxiv_https___arxiv_org_abs_2501_05749
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publishDate 2025
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spellingShingle Bridging Dialects: Translating Standard Bangla to Regional Variants Using Neural Models
Khandaker, Md. Arafat Alam
Raha, Ziyan Shirin
Paul, Bidyarthi
Muhammad, Tashreef
Computation and Language
The Bangla language includes many regional dialects, adding to its cultural richness. The translation of Bangla Language into regional dialects presents a challenge due to significant variations in vocabulary, pronunciation, and sentence structure across regions like Chittagong, Sylhet, Barishal, Noakhali, and Mymensingh. These dialects, though vital to local identities, lack of representation in technological applications. This study addresses this gap by translating standard Bangla into these dialects using neural machine translation (NMT) models, including BanglaT5, mT5, and mBART50. The work is motivated by the need to preserve linguistic diversity and improve communication among dialect speakers. The models were fine-tuned using the "Vashantor" dataset, containing 32,500 sentences across various dialects, and evaluated through Character Error Rate (CER) and Word Error Rate (WER) metrics. BanglaT5 demonstrated superior performance with a CER of 12.3% and WER of 15.7%, highlighting its effectiveness in capturing dialectal nuances. The outcomes of this research contribute to the development of inclusive language technologies that support regional dialects and promote linguistic diversity.
title Bridging Dialects: Translating Standard Bangla to Regional Variants Using Neural Models
topic Computation and Language
url https://arxiv.org/abs/2501.05749