1. School of Software, Shandong University, China
2. School of Computer Science and Engineering, Nanyang Technological University, Singapore
3. Shenzhen Data Management Center of Planning and Natural Resources, China
4. School of Software, Shandong University, China and Key Laboratory of Urban Land Resources Monitoring and Simulation, Ministry of Natural Resources, China
5. School of Computer Science and Technology, Harbin Institute of Technology (Shenzhen), China