Reference-based Metrics can be Replaced with Reference-less Metrics in Evaluating Grammatical Error Correction Systems Hiroki Asano author Tomoya Mizumoto author Kentaro Inui author 2017-11 text Proceedings of the Eighth International Joint Conference on Natural Language Processing (Volume 2: Short Papers) Greg Kondrak editor Taro Watanabe editor Asian Federation of Natural Language Processing Taipei, Taiwan conference publication asano-etal-2017-reference https://aclanthology.org/I17-2058/ 2017-11 343 348