Stacked Sentence-Document Classifier Approach for Improving Native Language Identification Andrea Cimino author Felice Dell’Orletta author 2017-09 text Proceedings of the 12th Workshop on Innovative Use of NLP for Building Educational Applications Joel Tetreault editor Jill Burstein editor Claudia Leacock editor Helen Yannakoudakis editor Association for Computational Linguistics Copenhagen, Denmark conference publication cimino-dellorletta-2017-stacked 10.18653/v1/W17-5049 https://aclanthology.org/W17-5049/ 2017-09 430 437