1. School of Computer Science and Technology, Guangdong University of Technology, Guangzhou, China
2. Faculty of Applied Sciences, Macao Polytechnic University, Macao, China
3. School of Information Science and Technology, Guangdong University of Foreign Studies, Guangzhou, China
4. Department of Computer and Information Science, University of Macau, Macao, China
5. Department of Neurology, Guangdong Second Provincial General Hospital, Guangzhou, China