1. School of Computer Science and Engineering, Xi'an University of Technology, Xi'an, China
2. School of Mathematics and Computer Science, Indian Institute of Technology Goa, Goa, India
3. Faculty of Computing, Harbin Institute of Technology, Heilongjiang, China
4. Company of Commercial Aircraft, Xi'an Aircraft Industry Group, the Aviation Industry Corporation of China, Xi'an, China
5. School of Electronics and Information Engineering, Wuxi University, Wuxi, China