TY - JOUR A1 - Wang, Y. A1 - Luo, A. A1 - Liu, J. A1 - Cao, Y. T1 - Research on Deep Web POI Acquisition based on Retrieving Word Optimization and Spatial Adaption JO - Proc. Int. Cartogr. Assoc. J1 - ICA-Proc VL - 2 SP - 142 EP - Y1 - 2019/07/10 PB - Copernicus Publications SN - 2570-2092 UR - https://ica-proc.copernicus.org/articles/2/142/2019/ L1 - https://ica-proc.copernicus.org/articles/2/142/2019/ica-proc-2-142-2019.pdf DO - 10.5194/ica-proc-2-142-2019 ER -