Chinese Computational Linguistics 18th China National Conference, CCL 2019, Kunming, China, October 18-20, 2019, Proceedings - Sun, Maosong; Sun, Maosong; Huang, Xuanjing; Huang, Xuanjing; Ji, Heng; Ji, Heng; Liu, Zhiyuan; Liu, Zhiyuan; Liu, Yang; Liu, Yang (Springer International Publishing : Imprint: Springer, 2019)