1. School of Intelligent Systems Engineering, Sun Yat-sen University, Guangzhou, People’s Republic of China
2. College of Information Science and Engineering, Huaqiao Univesity, Xiamen, People’s Republic of China
3. School of Information Science, Xinhua College of Sun Yet-sen University, Dongguan, People’s Republic of China
4. Institute of Systems Engineering, Macau University of Science and Technology, Macau, People’s Republic of China