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WSCG
2003
163views more  WSCG 2003»
13 years 9 months ago
Constructing Approximate Voronoi Diagrams from Digital Images of Generalized Polygons and Circular Objects
In this paper we present the geometrical construction of an approximate generalized Voronoi diagram for generalized polygons and circular objects based on their minimum geometrica...
W. L. Roque, D. Doering
CORR
2006
Springer
103views Education» more  CORR 2006»
13 years 8 months ago
Pants Decomposition of the Punctured Plane
A pants decomposition of an orientable surface is a collection of simple cycles that partition into pants, i.e., surfaces of genus zero with three boundary cycles. Given a set P...
Sheung-Hung Poon, Shripad Thite
COCOON
2005
Springer
14 years 1 months ago
Power Domination Problem in Graphs
To monitor an electric power system by placing as few phase measurement units (PMUs) as possible is closely related to the famous vertex cover problem and domination problem in gr...
Chung-Shou Liao, Der-Tsai Lee
WADS
2007
Springer
184views Algorithms» more  WADS 2007»
14 years 2 months ago
A Pseudopolynomial Time O (log n )-Approximation Algorithm for Art Gallery Problems
In this paper, we give a O(log copt)-approximation algorithm for the point guard problem where copt is the optimal number of guards. Our algorithm runs in time polynomial in n, the...
Ajay Deshpande, Taejung Kim, Erik D. Demaine, Sanj...
CCCG
1996
13 years 9 months ago
Fast Stabbing of Boxes in High Dimensions
We present in this paper a simple yet e cient algorithm for stabbing a set S of n axisparallel boxes in d-dimensional space with c(S) points in output-sensitive time O(dn log c(S)...
Frank Nielsen