1. Department of Information Technology, Kennesaw State University, Marietta, GA, USA
2. Faculty of Information Technology, Beijing Key Laboratory of Computational Intelligence and Intelligent System, Engineering Research Center of Digital Community, Ministry of Education, and Beijing Artificial Intelligence Institute, Beijing University of Technology, Beijing, China
3. Department of Control Science and Engineering, Tongji University, Shanghai, China
4. Electrical and Computer Engineering Department, University of Houston, Houston, TX, USA