1. Guangdong Key Laboratory for Urbanization and Geo-simulation, School of Geography and Planning, Sun Yat-sen University, Guangzhou, China
2. KeyLabof Geographic Information Science (Ministry of Education),School of Geographic Sciences, East China Normal University, Shanghai, P.R. China
3. School of Geography and Information Engineering, China University of Geosciences, Wuhan, China
4. Department of Civil, Environmental and Geomatic Engineering, ETH Zürich, Zürich, Switzerland
5. Department of Data Technology and Products, Alibaba Group, Hangzhou, China