Qian Zou
Department of Information, Chengdu University of Technology, Chengdu 68, Shichuan, China
Huajun Wang
Department of Information, Chengdu University of Technology, Chengdu 68, Shichuan, China
Wei Huang
Department of Information, Chengdu University of Technology, Chengdu 68, Shichuan, China
Jin Pan
Department of Computer, Guiyang University, Guiyang 550005, Guizhou, China