TY - Journal of Geographical Sciences A1 - PEI Tao, SONG Ci, GUO Sihui, SHU Hua, LIU Yaxi, DU Yunyan, MA Ting, ZHOU Chenghu T1 - Big geodata mining: Objective, connotations and research issues Y1 - 2020-04-21 00:00:00.0 JF - Journal of Geographical Sciences JO - Journal of Geographical Sciences SP - 251 EP - 266 VL - 30 IS - 2 UR - {https://www.geogsci.com/EN/10.1007/s11442-020-1726-7} N1 - 10.1007/s11442-020-1726-7 ER -