Forest-to-string translation using binarized dependency forest for IWSLT 2012 OLYMPICS task Hwidong Na author Jong-Hyeok Lee author 2012-dec 6-7 text Proceedings of the 9th International Workshop on Spoken Language Translation: Evaluation Campaign Hong Kong, Table of contents conference publication na-lee-2012-forest https://aclanthology.org/2012.iwslt-evaluation.18/ 2012-dec 6-7 130 135