UM-Checker: A Hybrid System for English Grammatical Error Correction Junwen Xing author Longyue Wang author Derek F Wong author Lidia S Chao author Xiaodong Zeng author 2013-08 text Proceedings of the Seventeenth Conference on Computational Natural Language Learning: Shared Task Hwee Tou Ng editor Joel Tetreault editor Siew Mei Wu editor Yuanbin Wu editor Christian Hadiwinoto editor Association for Computational Linguistics Sofia, Bulgaria conference publication xing-etal-2013-um https://aclanthology.org/W13-3605/ 2013-08 34 42