Artificial Error Generation with Fluency Filtering Mengyang Qiu author Jungyeul Park author 2019-08 text Proceedings of the Fourteenth Workshop on Innovative Use of NLP for Building Educational Applications Helen Yannakoudakis editor Ekaterina Kochmar editor Claudia Leacock editor Nitin Madnani editor Ildikó Pilán editor Torsten Zesch editor Association for Computational Linguistics Florence, Italy conference publication qiu-park-2019-artificial 10.18653/v1/W19-4408 https://aclanthology.org/W19-4408/ 2019-08 87 91