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A fast algorithm for computing sparse visibility graphs
Chandrasekharan Pandu Rangan
Published in Springer-Verlag
1990
DOI:
10.1007/BF01840385
Volume: 5
Issue: 1-4
Pages: 201 - 214
Abstract
An O(|E|log2 n) algorithm is presented to construct the visibility graph for a collection of n nonintersecting line segments, where |E| is the number of edges in the visibility graph. This algorithm is much faster than the O(n2)-time and O(n2)-space algorithms by Asano et al., and by Welzl, on sparse visibility graphs. Thus we partially resolve an open problem raised by Welzl. Further, our algorithm uses only O(n) working storage. © 1990 Springer-Verlag New York Inc.
Topics:
Visibility graph
(63)%
63% related to the paper
,
Visibility (geometry)
(63)%
63% related to the paper
,
Shortest Path Faster Algorithm
(58)%
58% related to the paper
and
Shortest path problem
(51)%
51% related to the paper
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A Fast Algorithm for Computing Sparse Visibility Graphs
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Concepts (5)
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About the journal
Journal
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Algorithmica
Publisher
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Springer-Verlag
ISSN
01784617
Open Access
No
Concepts (5)
COMPUTERS, DIGITAL--COMPUTATIONAL METHODS
Computational geometry
Shortest path
Visibility graph
Mathematical techniques
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