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A Grand Challenge?
Spatial Access Methods
Finding Boundary Shape Matching Relationships in Spatial Data
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applications approach approximation boundary graph boundary nodes bounding structures bucket candidates cluster coarsening collinear collinear edges complex Computational Geometry Conf constraint databases contained cost curves data model data partitioning data types Database Systems DBMS defined definition denoted distance efficient elementary regions example fragment graphs function Geo-Opera geo-process Geographical Information Systems geometric GeoToolKit hierarchical routing implementation incident edges interoperability intersection point join algorithm kernel linear method minimum bounding rectangle neighborhood graphs NGRA operators and predicates optimal orthogonal polygons output overlap pair parallel spatial join performance Proc processors proposed query languages query processing R-tree raster image rectangles refinement step relational algebra representation represented retrieval Section semantics shortest path SIGMOD space spatial data Spatial Databases spatial index spatial join processing spatial objects spatial queries storage stored Table tertiary storage topological relation tuple update vague regions vertex