Cyberspace Institute Advanced Technology, Guangzhou University, Guangzhou, China|Research and Development Center for E-Learning, Ministry of Education, Beijing, China|College of Information Engineering, Yangzhou University, Yangzhou, China|Quanzhou Normal University, Quanzhou, China|Pazhou Laboratory, Guangzhou, China
Cyberspace Institute Advanced Technology, Guangzhou University, Guangzhou, China
College of Information Engineering, Yangzhou University, Yangzhou, China