1. Engineering Research Center of Digital Forecasts, Ministry of Education, School of Computer and Software, Nanjing University Information Science and Technology, Nanjing, China
2. Department of Computer Science and Information Engineering, Asia University, Taichung, Taiwan
3. Ronin Institute, Montclair, NJ, USA
4. King Abdulaziz University, Jeddah, Saudi Arabia
5. Department of Electronics Engineering and Telecommunications, Faculty of Engineering, Rio de Janeiro State University, Rio de Janeiro, Brazil