402 search results - page 20 / 81 » A branch and cut algorithm for the Steiner problem in graphs |
APPROX
2007
Springer
13 years 11 months ago
2007
Springer
We study the Steiner Tree problem in the model of two-stage stochastic optimization with non-uniform inflation factors, and give a poly-logarithmic approximation factor for this pr...
SGP
2007
13 years 9 months ago
2007
We present two new Delaunay refinement algorithms, second an extension of the first. For a given input domain (a set of points or a planar straight line graph), and a threshold an...
ICCV
2003
IEEE
14 years 9 months ago
2003
IEEE
Vision tasks, such as segmentation, grouping, recognition, can be formulated as graph partition problems. The recent literature witnessed two popular graph cut algorithms: the Ncu...
COCOON
2006
Springer
13 years 11 months ago
2006
Springer
Many real-life scheduling, routing and location problems can be formulated as combinatorial optimization problems whose goal is to find a linear layout of an input graph in such a ...
PAMI
2010
13 years 5 months ago
2010
—This paper addresses the problem of self-validated labeling of Markov random fields (MRFs), namely to optimize an MRF with unknown number of labels. We present graduated graph c...