Spatial Data Uncertainty in GIS Analysis
Yanyan Zhang · Geomatics & Spatial Information Technology · 2005
GIS describes spatial phenomena by using multi-dimendional coordinates with reference space,time and attribute and spreads information through analysis operations.But the uncerainty problem exists in the method of representation for all spatial models. Starting from the quantitative conception of quality,prcision and usage of spatial data,authors have approached the origin and development of uncertainty problem for spatial data and bilieve that uncerainty and error must be deetrminde from the view-point of usability.