Department of Computer Science and Technology;
XiamenUniversity of Technology;
Xiamen 361005;
Fujian;
China;
College of Economics and Managament;
Nanjing Universityof Science and Technology;
Nanjing 210094;
Jiangsu;
China;
Department of Information Center;
Xiamen University ofTechnology;
Xiamen 361005;
Fujian;
China;
Department of Information Center;
Xiamen Health Bureau;
Xiamen 361005;
Fujian;
China;