Intelligent Computing Theories and Application 15th International Conference, ICIC 2019, Nanchang, China, August 3-6, 2019, Proceedings, Part II - Huang, De-Shuang; Huang, De-Shuang; Jo, Kang-Hyun; Jo, Kang-Hyun; Huang, Zhi-Kai; Huang, Zhi-Kai (Springer International Publishing : Imprint: Springer, 2019)