抄録
Map overlay operation in GIS is often followed by a data transfer between incompatible zonal systems. There are various methods of data transfer which are called areal interpolation methods. Any interpolation methods, however, involve error in data transfer because of insufficient information about the distribution of spatial objects in overlaid zones. This paper proposes a probabilistic model of the error in count data transferred through the areal weighting method, and analyze the relationship among the source zonal system, target zone, and the distribution of spatial objects whose counts are recorded in GIS. Both theoretical and empirical findings are shows.
