Future Data and Security Engineering 6th International Conference, FDSE 2019, Nha Trang City, Vietnam, November 27-29, 2019, Proceedings - Dang, Tran Khanh; Dang, Tran Khanh; Küng, Josef; Küng, Josef; Takizawa, Makoto; Takizawa, Makoto; Bui, Son Ha; Bui, Son Ha (Springer International Publishing : Imprint: Springer, 2019)