1. Institute of Remote Sensing and Geographical Information Systems, School of Earth and Space Sciences, Peking University, Beijing, China
2. Beijing Key Lab of Spatial Information Integration and Its Applications, Peking University, Beijing, China
3. Center for Data Science, Zhejiang University, Hangzhou, China
4. State Key Laboratory of Media Convergence Production Technology and Systems, Beijing, China
5. Southwest United Graduate School, Kunming, China