Is “moby dick” a Whale or a Bird? Named Entities and Terminology in Speech Translation
Marco Gaido, Susana Rodrı́guez, Matteo Negri, Luisa Bentivogli, Marco Turchi · Proceedings of the 2021 Conference on Empirical Methods in Natural Language Processing · 2021
Automatic translation systems are known to struggle with rare words.Among these, named entities (NEs) and domain-specific terms are crucial, since errors in their translation can lead to severe meaning distortions.Despite their importance, previous speech translation (ST) studies have neglected them, also due to the dearth of publicly available resources tailored to their specific evaluation.To fill this gap, we i) present the first systematic analysis of the behavior of state-of-the-art ST systems in translating NEs and terminology, and ii) release NEuRoparl-ST, a novel benchmark built from European Parliament speeches annotated with NEs and terminology.Our experiments on the three language directions covered by our benchmark (en→es/fr/it) show that ST systems correctly translate 75-80% of terms and 65-70% of NEs, with very low performance (37-40%) on person names.