1. School of Science and Technology, Hong Kong Metropolitan University, Hong Kong, China
2. School of Educational Technology, Northwest Normal University, Lanzhou 730070, China
3. Information Technology Office, Hong Kong Metropolitan University, Hong Kong, China
4. Talent & Education Development Office, City University of Hong Kong, Hong Kong, China
5. Hong Kong Institution of Information Technology, Vocational Training Council, Hong Kong, China
6. School of Computer Science, South China Normal University, Guangzhou 510631, China
7. Department of Computer and Information Science, University of Macau, Macau, China
8. College of Professional and Continuing Education, The Hong Kong Polytechnic University, Hong Kong, China