1. School of Electrical and Information Engineering, Changsha University of Science and Technology, Changsha, People’s Republic of China
2. College of Geological Engineering and Geomatics, Chang’an University, Xi’an, People’s Republic of China
3. Key Laboratory of Loess, Xi’an, People’s Republic of China
4. Key Laboratory of Western China’s Mineral Resources and Geological Engineering, Ministry of Education, Xi’an, People’s Republic of China
5. Enterprise Data Analytics, TD Insurance, Toronto, Canada
6. College of Electronic Science and Technology, National University of Defense Technology, Changsha, People’s Republic of China