Substring Frequency Features for Segmentation of Japanese Katakana Words with Unlabeled Corpora Yoshinari Fujinuma author Alvin Grissom II 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 fujinuma-grissom-ii-2017-substring https://aclanthology.org/I17-2013/ 2017-11 74 79