TY - JOUR A1 - Hou, D. Y. A1 - Wu, H. A1 - Chen, J. A1 - Li, R. T1 - Key Spatial Relations-based Focused Crawling (KSRs-FC) for Borderlands Situation Analysis JO - Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci. J1 - ISPRS-Archives VL - XL-4/W3 SP - 63 EP - 69 Y1 - 2013/11/13 PB - Copernicus Publications SN - 2194-9034 UR - https://isprs-archives.copernicus.org/articles/XL-4-W3/63/2013/ L1 - https://isprs-archives.copernicus.org/articles/XL-4-W3/63/2013/isprsarchives-XL-4-W3-63-2013.pdf DO - 10.5194/isprsarchives-XL-4-W3-63-2013 ER -