Ling@CASS Solution to the NLP-TEA CGED Shared Task 2018 Qinan Hu author Yongwei Zhang author Fang Liu author Yueguo Gu author 2018-07 text Proceedings of the 5th Workshop on Natural Language Processing Techniques for Educational Applications Yuen-Hsien Tseng editor Hsin-Hsi Chen editor Vincent Ng editor Mamoru Komachi editor Association for Computational Linguistics Melbourne, Australia conference publication hu-etal-2018-ling 10.18653/v1/W18-3709 https://aclanthology.org/W18-3709/ 2018-07 70 76