영어자원문법을 활용한 신경망 기계번역의 데이터 증강과 성능 평가

Abstract

Wang, Guehyun; Song, Sanghoun (2021), “Evaluation of Neural Machine Translation Trained by Augmented Data Using English Resource Grammar,” Language and Information Society 42. Machine translation commonly involves both analysis and generation across different human languages. This implies that parallel corpora of a large size are essential to create a theoretically reliable and practically robust translation model. However, as is well known, the parallel corpora between Korean and English are insufficient. In this respect, this study expands the data by means of English Resource Grammar (Flickinger 2000) to improve the translation model between the languages. Then, it looks at whether the neural machine translation model performs better with the augmented data. Unfortunately, it turns out the translation models based on augmented data exhibit rather lower BLEU scores. This study further discusses the reason for the unsatisfactory scores and raises the necessity of human evaluation as a next step.