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Algorithms to determine the edges of a convex hull from its vertices - MaRDI portal

Algorithms to determine the edges of a convex hull from its vertices (Q1758820)

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scientific article; zbMATH DE number 6108272
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English
Algorithms to determine the edges of a convex hull from its vertices
scientific article; zbMATH DE number 6108272

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    Algorithms to determine the edges of a convex hull from its vertices (English)
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    16 November 2012
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    Three new algorithms developed to identify the edges of finitely generated convex hulls are introduced. All the three algorithms are based on linear programming and differ in their approaches. The `repelling-support', `projection' and `conical or truncation' approaches are used, their mathematical and geometric foundations are explained and pseudo-codes of each of the three algorithms are given. The complexity of all the three algorithms is expressed and the effectiveness of these algorithms is compared to an algorithm proposed by \textit{R. J.-B. Wets} and \textit{C. Witzgall} [J. Res. Natl. Bur. Stand., Sect. B 71, 1--7 (1967; Zbl 0157.49502)] which solves the same problem and can be considered as the best currently available algorithm.
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    convex hull
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    positive hull
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    hyperplane representation
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    convex polytope
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    convex hull edge
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    linear programming
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    algorithms
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    repelling-support
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    projection
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    conical or truncation
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