School of Computer Science and Technology;
Harbin Institute of Technology;
Harbin 150001;
China;
College of Computer Science;
Beijing University of Technology;
Beijing 100124;
China;
School of Computer;
National University of Defense Technology;
Changsha 410073;
China;
Haier Group;
Qingdao 266000;
China;
School of Computer and Information Technology;
Beijing Jiaotong University;
Beijing 100029;
China;