ℰ KÚ [MASK]: Integrating Yorùbá cultural greetings into machine translation
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This paper investigates the performance of massively multilingual neural machine translation (NMT) systems in translating Yorùbá greetings (ℰ kú [MASK]), which are a big part of Yorùbá language and culture, into English. To evaluate these models, we present IkiniYorùbá, a Yorùbá-English translation dataset containing some Yorùbá greetings, and sample use cases. We analysed the performance of different multilingual NMT systems including Google and NLLB and show that these models struggle to accurately translate Yorùbá greetings into English. In addition, we trained a Yorùbá-English model by finetuning an existing NMT model on the training split of IkiniYorùbá and this achieved better performance when compared to the pre-trained multilingual NMT models, although they were trained on a large volume of data.
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