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» Guarding galleries and terrains
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APPROX
2009
Springer
131views Algorithms» more  APPROX 2009»
15 years 4 months ago
An Approximation Scheme for Terrain Guarding
We obtain a polynomial time approximation scheme for the terrain guarding problem improving upon several recent constant factor approximations. Our algorithm is a local search algo...
Matt Gibson, Gaurav Kanade, Erik Krohn, Kasturi R....
SODA
2010
ACM
151views Algorithms» more  SODA 2010»
15 years 7 months ago
The Complexity of Guarding Terrains
James King, Erik Krohn
STACS
2009
Springer
15 years 4 months ago
Improved Approximations for Guarding 1.5-Dimensional Terrains
Khaled M. Elbassioni, Erik Krohn, Domagoj Matijevi...
COMPGEOM
2005
ACM
14 years 11 months ago
Guarding a terrain by two watchtowers
Pankaj K. Agarwal, Sergey Bereg, Ovidiu Daescu, Ha...
SODA
2010
ACM
133views Algorithms» more  SODA 2010»
14 years 8 months ago
Terrain Guarding is NP-Hard
James King, Erik Krohn