275 search results - page 39 / 55 » Parameterized Complexity of Generalized Vertex Cover Problem... |
149
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STOC
2009
ACM
16 years 4 months ago
2009
ACM
We present an improved oracle for the distance sensitivity problem. The goal is to preprocess a directed graph G = (V, E) with non-negative edge weights to answer queries of the f...
143
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ICIP
2002
IEEE
16 years 5 months ago
2002
IEEE
In this paper, we address the issue of joint space-time segmentation of image sequences. Typical approaches to such segmentation consider two image frames at a time, and perform t...
132
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COMPGEOM
2007
ACM
15 years 8 months ago
2007
ACM
We consider the problem of placing a small number of angle guards inside a simple polygon P so as to provide efficient proofs that any given point is inside P. Each angle guard vi...
148
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MFCS
2005
Springer
15 years 9 months ago
2005
Springer
Abstract. Feige and Kilian [5] showed that finding reasonable approximative solutions to the coloring problem on graphs is hard. This motivates the quest for algorithms that eithe...
149
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COMPGEOM
2010
ACM
15 years 9 months ago
2010
ACM
Let P be a set of n points in R3 . The 2-center problem for P is to find two congruent balls of the minimum radius whose union covers P. We present two randomized algorithms for ...