Title
Inapproximability of the Perimeter Defense Problem
Abstract
We model the problem of detecting intruders using a set of infrared beams by the perimeter defense problem: given a polygon P, find a minimum set of edges S of the polygon such that any straight line segment crossing the polygon intersects at least one of the edges in S. We observe that this problem is equivalent to a new hiding problem, the Max-Hidden-Edge-Set problem. We prove the APX-hardness of the Max-Hidden-Edge-Set problem for polygons without holes and rectilinear polygons without holes, by providing gap-preserving reductions from the Max-5-Occurrence-2-Sat problem.
Year
Venue
Keywords
2009
CCCG
infrared
Field
DocType
Citations 
Art gallery problem,Discrete mathematics,Rectilinear polygon,Polygon,Combinatorics,Midpoint polygon,Polygon covering,Computer science,Regular polygon,Point in polygon,Star-shaped polygon
Conference
4
PageRank 
References 
Authors
0.57
7
4
Name
Order
Citations
PageRank
Evangelos Kranakis13107354.48
Danny Krizanc21778191.04
Lata Narayanan361362.78
Kun Xu4214.37