Harnessing Transfer Learning from Swahili: Advancing Solutions for Comorian Dialects

• URL: http://arxiv.org/abs/2412.12143v1
• Date: Mon, 09 Dec 2024 22:47:41 GMT
• Title: Harnessing Transfer Learning from Swahili: Advancing Solutions for Comorian Dialects
• Authors: Naira Abdou Mohamed, Zakarya Erraji, Abdessalam Bahafid, Imade Benelallam,
• Abstract summary: We aim to pioneer NLP technologies for Comorian, a group of four languages or dialects belonging to the Bantu family. Our approach is motivated by the hypothesis that if a human can understand a different language from their native language with little or no effort, it would be entirely possible to model this process on a machine.
• Score: 0.0
• License:
• Abstract: If today some African languages like Swahili have enough resources to develop high-performing Natural Language Processing (NLP) systems, many other languages spoken on the continent are still lacking such support. For these languages, still in their infancy, several possibilities exist to address this critical lack of data. Among them is Transfer Learning, which allows low-resource languages to benefit from the good representation of other languages that are similar to them. In this work, we adopt a similar approach, aiming to pioneer NLP technologies for Comorian, a group of four languages or dialects belonging to the Bantu family. Our approach is initially motivated by the hypothesis that if a human can understand a different language from their native language with little or no effort, it would be entirely possible to model this process on a machine. To achieve this, we consider ways to construct Comorian datasets mixed with Swahili. One thing to note here is that in terms of Swahili data, we only focus on elements that are closest to Comorian by calculating lexical distances between candidate and source data. We empirically test this hypothesis in two use cases: Automatic Speech Recognition (ASR) and Machine Translation (MT). Our MT model achieved ROUGE-1, ROUGE-2, and ROUGE-L scores of 0.6826, 0.42, and 0.6532, respectively, while our ASR system recorded a WER of 39.50\% and a CER of 13.76\%. This research is crucial for advancing NLP in underrepresented languages, with potential to preserve and promote Comorian linguistic heritage in the digital age.

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