1. School of Geography and Planning, Sun Yat-sen University, Guangzhou, China
2. China Regional Coordinated Development and Rural Construction Institute, Sun Yat-sen University, Guangzhou, China
3. Data61, Commonwealth Scientific and Industrial Research Organization (CSIRO), Melbourne Australia
4. Faculty of Information Technology, Monash University, Australia
5. Department of Geography and Environmental Studies, California State University, Northridge, CA, USA