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Cluster validity indices are used to validate results of clustering and to find a set of clusters that best fits natural partitions for given data set. Most of the previous validity indices have been… (More)
This paper introduces a new algorithm for constructing a 2D Delaunay triangulation. It is based on a sweep-line paradigm, which is combined with a local optimization criterion-a characteristic of… (More)
This paper presents an agglomerative hierarchical clustering algorithm for spatial data. It discovers clusters of arbitrary shapes which may be nested. The algorithm uses a sweeping approach… (More)
This paper presents a system for supporting agricultural subsidies in Slovenia. First, an overview is given of specific areas of Slovenia's land, considered as zones. Then, the system, which explores… (More)