105 search results - page 16 / 21 » A 3-Approximation for the Minimum Tree Spanning k Vertices |
FOCS
2004
IEEE
13 years 11 months ago
2004
IEEE
Given an undirected multigraph G and a subset of vertices S V (G), the STEINER TREE PACKING problem is to find a largest collection of edge-disjoint trees that each connects S. T...
JGT
2008
13 years 7 months ago
2008
Given a distribution of pebbles on the vertices of a graph G, a pebbling move takes two pebbles from one vertex and puts one on a neighboring vertex. The pebbling number (G) is th...
PODC
2005
ACM
14 years 1 months ago
2005
ACM
The problem of verifying a Minimum Spanning Tree (MST) was introduced by Tarjan in a sequential setting. Given a graph and a tree that spans it, the algorithm is required to check...
COMPGEOM
2006
ACM
13 years 11 months ago
2006
ACM
Despite extensive study over the last four decades and numerous applications, no I/O-efficient algorithm is known for the union-find problem. In this paper we present an I/O-effic...
APPROX
2007
Springer
14 years 1 months ago
2007
Springer
We investigate the problem of computing a minimum set of solutions that approximates within a specified accuracy the Pareto curve of a multiobjective optimization problem. We show...