Developing an English-Efik Corpus and Machine Translation System for Digitization Inclusion

Fuente: arXiv
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Autores principales: Edet, Offiong Bassey, Awak, Mbuotidem Sunday, Oyo-Ita, Emmanuel, Nyong, Benjamin Okon, Bassey, Ita Etim
Formato: Preprint
Publicado: 2026
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author Edet, Offiong Bassey
Awak, Mbuotidem Sunday
Oyo-Ita, Emmanuel
Nyong, Benjamin Okon
Bassey, Ita Etim
author_facet Edet, Offiong Bassey
Awak, Mbuotidem Sunday
Oyo-Ita, Emmanuel
Nyong, Benjamin Okon
Bassey, Ita Etim
contents Low-resource languages serve as invaluable repositories of human history, preserving cultural and intellectual diversity. Despite their significance, they remain largely absent from modern natural language processing systems. While progress has been made for widely spoken African languages such as Swahili, Yoruba, and Amharic, smaller indigenous languages like Efik continue to be underrepresented in machine translation research. This study evaluates the effectiveness of state-of-the-art multilingual neural machine translation models for English-Efik translation, leveraging a small-scale, community-curated parallel corpus of 13,865 sentence pairs. We fine-tuned both the mT5 multilingual model and the NLLB200 model on this dataset. NLLB-200 outperformed mT5, achieving BLEU scores of 26.64 for English-Efik and 31.21 for Efik-English, with corresponding chrF scores of 51.04 and 47.92, indicating improved fluency and semantic fidelity. Our findings demonstrate the feasibility of developing practical machine translation tools for low-resource languages and highlight the importance of inclusive data practices and culturally grounded evaluation in advancing equitable NLP.
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spellingShingle Developing an English-Efik Corpus and Machine Translation System for Digitization Inclusion
Edet, Offiong Bassey
Awak, Mbuotidem Sunday
Oyo-Ita, Emmanuel
Nyong, Benjamin Okon
Bassey, Ita Etim
Computation and Language
Low-resource languages serve as invaluable repositories of human history, preserving cultural and intellectual diversity. Despite their significance, they remain largely absent from modern natural language processing systems. While progress has been made for widely spoken African languages such as Swahili, Yoruba, and Amharic, smaller indigenous languages like Efik continue to be underrepresented in machine translation research. This study evaluates the effectiveness of state-of-the-art multilingual neural machine translation models for English-Efik translation, leveraging a small-scale, community-curated parallel corpus of 13,865 sentence pairs. We fine-tuned both the mT5 multilingual model and the NLLB200 model on this dataset. NLLB-200 outperformed mT5, achieving BLEU scores of 26.64 for English-Efik and 31.21 for Efik-English, with corresponding chrF scores of 51.04 and 47.92, indicating improved fluency and semantic fidelity. Our findings demonstrate the feasibility of developing practical machine translation tools for low-resource languages and highlight the importance of inclusive data practices and culturally grounded evaluation in advancing equitable NLP.
title Developing an English-Efik Corpus and Machine Translation System for Digitization Inclusion
topic Computation and Language
url https://arxiv.org/abs/2603.14873