206 search results - page 7 / 42 » A distributed approximation algorithm for the minimum degree... |
SODA
2004
ACM
13 years 9 months ago
2004
ACM
Given a graph G and a spanning tree T of G, we say that T is a tree t-spanner of G if the distance between every pair of vertices in T is at most t times their distance in G. The p...
NETWORKS
2008
13 years 7 months ago
2008
Given a graph where increasing the weight of an edge has a nondecreasing convex piecewise linear cost, we study the problem of finding a minimum cost increase of the weights so tha...
CCCG
2007
13 years 9 months ago
2007
In the minimum-cost k-hop spanning tree (k-hop MST) problem, we are given a set S of n points in a metric space, a positive small integer k and a root point r ∈ S. We are intere...
FOCS
1996
IEEE
13 years 11 months ago
1996
IEEE
In thispaper we give a 3-approximationalgorithmfor the problem ojJnding a minimum tree spanning any k-vertices in a graph. Our algorithm extends to a 3-approximationalgorithmfor t...
SRDS
1998
IEEE
13 years 12 months ago
1998
IEEE
We study parallel algorithms for computing the minimum spanning tree of a weighted undirected graph G with n vertices and m edges. We consider an input graph G with m=n p, where p...