1. School of Computer and Information Technology, Shanxi University, Taiyuan 030006, P. R. China
2. Complex System Research Center, Shanxi University, Taiyuan 030006, Shanxi, P. R. China
3. Shanxi Key Laboratory of Mathematical Techniques and Big Data Analysis on Disease Control and Prevention, Shanxi University, Taiyuan 030006, Shanxi, P. R. China
4. Key Laboratory of Computational Intelligence, and Chinese Information, Processing of Ministry of Education, Taiyuan 030006, P. R. China
5. Department of Mathematical Sciences, University of Alabama in Huntsville, Huntsville, AL 35899, USA