1. School of Geography and Information Engineering, China University of Geosciences, Wuhan, P.R. China
2. RIKEN Center for Advanced Intelligence Project, RIKEN, Tokyo, Japan
3. School of Economics and Management, Hubei University of Technology, Wuhan, P.R. China
4. School of Computer Science, China University of Geosciences, Wuhan, P.R. China
5. The University of Sydney Business School, The University of Sydney, Sydney, Australia