POSTECH Submission on Duolingo Shared Task Junsu Park author Hongseok Kwon author Jong-Hyeok Lee author 2020-07 text Proceedings of the Fourth Workshop on Neural Generation and Translation Alexandra Birch editor Andrew Finch editor Hiroaki Hayashi editor Kenneth Heafield editor Marcin Junczys-Dowmunt editor Ioannis Konstas editor Xian Li editor Graham Neubig editor Yusuke Oda editor Association for Computational Linguistics Online conference publication park-etal-2020-postech 10.18653/v1/2020.ngt-1.16 https://aclanthology.org/2020.ngt-1.16/ 2020-07 139 143