School of Computer Science and Communication Engineering, Jiangsu University, Zhenjiang 212013, China;
Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing100029, China;
Shanxi Coal Geological Exploration Institute 115, Datong 037003, China;
Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing100029, China;
Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing100029, China;
