1. Department of Applied Mathematics, Harbin University of Science and Technology, Harbin 150080, China
2. School of Information Science and Technology, Donghua University, Shanghai 200051, China
3. Department of Information Systems and Computing, Brunel University, Uxbridge, Middlesex UB8 3PH, UK
4. College of Electrical and Information Engineering, Northeast Petroleum University, Daqing 163318, China
5. Institute for Automatic Control and Complex Systems, University of Duisburg-Essen, Duisburg 47057, Germany
6. Research Institute of Intelligent Control and Systems, Harbin Institute of Technology, Harbin 150001, China