Advances in Knowledge Discovery and Data Mining 19th Pacific-Asia Conference, PAKDD 2015, Ho Chi Minh City, Vietnam, May 19-22, 2015, Proceedings, Part I - Cao, Tru; Lim, Ee-Peng; Zhou, Zhi-Hua; Ho, Tu-Bao; Cheung, David; Motoda, Hiroshi (Springer International Publishing : Imprint: Springer, 2015)