An improved algorithm for Kleeʼs measure problem on fat boxes

The measure problem of Klee asks for the volume of the union of n axis-parallel boxes in a fixed dimension d. We give an O(n(d+2)/3) time algorithm for the special case of all boxes being cubes or, more generally, fat boxes. Previously, the fastest run-time was nd/22O(log⁎n), achieved by the general...

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Published inComputational geometry : theory and applications Vol. 45; no. 5-6; pp. 225 - 233
Main Author Bringmann, Karl
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.07.2012
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ISSN0925-7721
DOI10.1016/j.comgeo.2011.12.001

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Abstract The measure problem of Klee asks for the volume of the union of n axis-parallel boxes in a fixed dimension d. We give an O(n(d+2)/3) time algorithm for the special case of all boxes being cubes or, more generally, fat boxes. Previously, the fastest run-time was nd/22O(log⁎n), achieved by the general case algorithm of Chan [SoCG 2008]. For the general problem our run-time would imply a breakthrough for the k-clique problem.
AbstractList The measure problem of Klee asks for the volume of the union of n axis-parallel boxes in a fixed dimension d. We give an O(n(d+2)/3) time algorithm for the special case of all boxes being cubes or, more generally, fat boxes. Previously, the fastest run-time was nd/22O(log⁎n), achieved by the general case algorithm of Chan [SoCG 2008]. For the general problem our run-time would imply a breakthrough for the k-clique problem.
The measure problem of Klee asks for the volume of the union of n axis-parallel boxes in a fixed dimension d. We give an O ( n ( d + 2 ) / 3 ) time algorithm for the special case of all boxes being cubes or, more generally, fat boxes. Previously, the fastest run-time was n d / 2 2 O ( log * n ) , achieved by the general case algorithm of Chan [SoCG 2008]. For the general problem our run-time would imply a breakthrough for the k-clique problem.
Author Bringmann, Karl
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Cites_doi 10.1145/1810959.1811000
10.1145/359545.359553
10.1137/S0097539702404389
10.1145/1247069.1247121
10.2307/2318871
10.1007/978-3-540-92182-0_40
10.1016/j.comgeo.2009.01.007
10.1007/s00454-003-0729-3
10.1137/0220065
10.1145/220279.220288
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Snippet The measure problem of Klee asks for the volume of the union of n axis-parallel boxes in a fixed dimension d. We give an O(n(d+2)/3) time algorithm for the...
The measure problem of Klee asks for the volume of the union of n axis-parallel boxes in a fixed dimension d. We give an O ( n ( d + 2 ) / 3 ) time algorithm...
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SubjectTerms Algorithms
Computational geometry
Cubes
Dimensional measurements
Geometric data structures
Run time (computers)
Union of cubes
Unions
Title An improved algorithm for Kleeʼs measure problem on fat boxes
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