Use of Rough Sets Theory in Point Cluster and River Network Selection

摘要: In this paper, we applied the rough sets to the point cluster and river network selection. order to meet the requirements of sets, first, structuralize quantify spatial information objects by convex hull, triangulated irregular (TIN), Voronoi diagram, etc.; second, manually assign decisional attributes the information table according conditional attributes. doing so, attribute information are integrated together evaluate the importance points rivers theory. Finally, select the point in a progressive manner. The experimental results show that our method is valid effective. comparison with previous work, has advantage adaptively consider spatial and at same time without any priori knowledge.