1. School of Information Engineering, China University of Geosciences, Beijing, China
2. School of Mathematics and Computational Science, Tangshan Normal University, Tangshan, China
3. 7th Institute of Geology and Mineral Exploration of Shandong Province, Linyi, China
4. National Institute of Natural Hazards, Ministry of Emergency Management, Beijing, China
5. School of Computer Science, China University of Geosciences, Wuhan, China