Extended Named Entity Recognition API and Its Applications in Language Education Tuan Duc Nguyen author Khai Mai author Thai-Hoang Pham author Minh Trung Nguyen author Truc-Vien T Nguyen author Takashi Eguchi author Ryohei Sasano author Satoshi Sekine author 2017-07 text Proceedings of ACL 2017, System Demonstrations Mohit Bansal editor Heng Ji editor Association for Computational Linguistics Vancouver, Canada conference publication nguyen-etal-2017-extended https://aclanthology.org/P17-4007/ 2017-07 37 42