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Bernard Opoku

3 accepted papers

2024

AfriMTE and AfriCOMET: Enhancing COMET to Embrace Under-resourced African Languages

NAACL 2024long

Despite the recent progress on scaling multilingual machine translation (MT) to several under-resourced African languages, accurately measuring this progress remains challenging, since evaluation is often performed on n-gram matching metrics such as BLEU, which typically show a weaker correlation wi…

2023

AfriSenti: A Twitter Sentiment Analysis Benchmark for African Languages

EMNLP 2023long main

Africa is home to over 2,000 languages from over six language families and has the highest linguistic diversity among all continents. This includes 75 languages with at least one million speakers each. Yet, there is little NLP research conducted on African languages. Crucial in enabling such researc…

Cited by 0SourcecodeScholar
2023

Cross-lingual Open-Retrieval Question Answering for African Languages

EMNLP 2023long findings

African languages have far less in-language content available digitally, making it challenging for question answering systems to satisfy the information needs of users. Cross-lingual open-retrieval question answering (XOR QA) systems -- those that retrieve answer content from other languages while s…

Cited by 0SourceScholar