License: 
Creative Commons Attribution 3.0 Unported license (CC BY 3.0)
When quoting this document, please refer to the following
DOI: 10.4230/LIPIcs.SoCG.2017.20
URN: urn:nbn:de:0030-drops-72150
URL: http://dagstuhl.sunsite.rwth-aachen.de/volltexte/2017/7215/
Bonnet, Édouard ;
Miltzow, Tillmann
An Approximation Algorithm for the Art Gallery Problem
Abstract
Given a simple polygon P on n vertices, two points x, y in P are said to be visible to each other if the line segment between x and y is contained in P. The Point Guard Art Gallery problem asks for a minimum-size set S such that every point in P is visible from a point in S. The set S is referred to as guards. Assuming integer coordinates and a specific general position on the vertices of P, we present the first O(log OPT)-approximation algorithm for the point guard problem. This algorithm combines ideas in papers of Efrat and Har-Peled and Deshpande et al. We also point out a mistake in the latter.
BibTeX - Entry
@InProceedings{bonnet_et_al:LIPIcs:2017:7215,
author = {{\'E}douard Bonnet and Tillmann Miltzow},
title = {{An Approximation Algorithm for the Art Gallery Problem}},
booktitle = {33rd International Symposium on Computational Geometry (SoCG 2017)},
pages = {20:1--20:15},
series = {Leibniz International Proceedings in Informatics (LIPIcs)},
ISBN = {978-3-95977-038-5},
ISSN = {1868-8969},
year = {2017},
volume = {77},
editor = {Boris Aronov and Matthew J. Katz},
publisher = {Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik},
address = {Dagstuhl, Germany},
URL = {http://drops.dagstuhl.de/opus/volltexte/2017/7215},
URN = {urn:nbn:de:0030-drops-72150},
doi = {10.4230/LIPIcs.SoCG.2017.20},
annote = {Keywords: computational geometry, art gallery, approximation algorithm}
}
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Keywords: |
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computational geometry, art gallery, approximation algorithm |
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Collection: |
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33rd International Symposium on Computational Geometry (SoCG 2017) |
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Issue Date: |
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2017 |
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Date of publication: |
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20.06.2017 |
