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- W1970320296 abstract "This paper presents a novel approach to handle large amounts of geometric data. A data stream clustering is used to reduce the amount of data and build a hierarchy of clusters. The data stream concept allows for the processing of very large data sets. The cluster hierarchy is then used in a dynamic triangulation to create a multiresolution model. It allows for the interactive selection of a different level of detail in various parts of the data. A method for removal multiple points from Delaunay triangulation is proposed. It is significantly faster than the traditional approach. The clustering and the triangulation are supplemented by an elliptical metric to handle data with anisotropic properties. Compared to the closest competitive method by Isenburg et al., the presented algorithm requires only a single pass over the data and offers a high flexibility. These advantages culminate in a long running time. The method was tested on several large digital elevation maps. The clustering phase can take up to a few hours. Once the cluster hierarchy is built, the terrains can be efficiently manipulated in real time." @default.
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- W1970320296 date "2011-08-01" @default.
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- W1970320296 title "Dynamic hierarchical triangulation of a clustered data stream" @default.
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- W1970320296 doi "https://doi.org/10.1016/j.cageo.2010.10.005" @default.
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