Title :
A Voronoi-Like Model of Spatial Autocorrelation for Characterizing Spatial Patterns in Vector Data
Author :
Zhang, Xiang ; Ai, Tinghua ; Stoter, Jantien
Author_Institution :
Int. Inst. for Geo-Inf. Sci. & Earth Obs. (ITC), Enschede, Netherlands
Abstract :
The paper presents a computational model of spatialautocorrelation based on a Voronoi-like auxiliary structure. It shows that the Voronoi-like partition of map objects can be used to discern spatial patterns (e.g. clustered or dispersed) of geographic phenomena. In this paper, we transform the problem of characterizing the patterns for different geometry types (i.e. points, curves, and polygons) into a process of calculating spatial autocorrelation based on the auxiliary partition units. The method is shown to be successful for the designated tasks.
Keywords :
computational geometry; geography; Delaunay triangulation; Voronoi like model; Voronoi-like auxiliary structure; Voronoi-like partition; computational model; geographic phenomena; map objects; spatial autocorrelation; spatial patterns; vector data; Autocorrelation; Computational modeling; Data visualization; Extraterrestrial phenomena; Fractals; Geography; Geometry; Geoscience; Pattern analysis; Statistical analysis; comforming delaunay triangulation; spatial autocorrelation; spatial patterns; voronoi-like structure;
Conference_Titel :
Voronoi Diagrams, 2009. ISVD '09. Sixth International Symposium on
Conference_Location :
Copenhagen
Print_ISBN :
978-1-4244-4769-5
Electronic_ISBN :
978-0-7695-3781-8
DOI :
10.1109/ISVD.2009.19