1. College of Information Science and Engineering, Northeastern University, Shenyang, China
2. School of Mechanical and Electronical Engineering, Guangzhou University, Guangzhou, China
3. School of Automation Science and Engineering, South China University of Technology, Guangzhou, China
4. School of Mathematical Science and the Heilongjiang Provincial Key Laboratory of the Theory and Computation of Complex Systems, Heilongjiang University, Harbin, China