Overview of NLPTEA-2020 Shared Task for Chinese Grammatical Error Diagnosis Gaoqi Rao author Erhong Yang author Baolin Zhang author 2020-12 text Proceedings of the 6th Workshop on Natural Language Processing Techniques for Educational Applications Erhong YANG editor Endong XUN editor Baolin ZHANG editor Gaoqi RAO editor Association for Computational Linguistics Suzhou, China conference publication rao-etal-2020-overview 10.18653/v1/2020.nlptea-1.4 https://aclanthology.org/2020.nlptea-1.4/ 2020-12 25 35