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SODA
1992
ACM
13 years 7 months ago
1992
ACM
We present a general approximation technique for a large class of graph problems. Our technique mostly applies to problems of covering, at minimum cost, the vertices of a graph wit...
SODA
1992
ACM
13 years 7 months ago
1992
ACM
Given a family of disjoint polygons P1, P2, : : :, Pk in the plane, and an integer parameter m, it is NP-complete to decide if the Pi's can be pairwise separated by a polygon...
SODA
1992
ACM
13 years 7 months ago
1992
ACM
We present several applications in computational geometry of Megiddo's parametric searching technique. These applications include: (1) Finding the minimum Hausdorff distance ...
SODA
1992
ACM
13 years 7 months ago
1992
ACM
Let P be a property of undirected graphs. We consider the following problem: given a graph G that has property P, nd a minimal spanning subgraph of G with property P. We describe ...