237 search results - page 12 / 48 » Approximation Algorithms for Minimum Tree Partition |
RECOMB
1997
Springer
14 years 22 days ago
1997
Springer
We present a new polynomial time approximation scheme (PTAS) for tree alignment, which is an important variant of multiple sequence alignment. As in the existing PTASs in the liter...
COCOA
2009
Springer
14 years 3 months ago
2009
Springer
Abstract. The node-weighted Steiner tree problem is a variation of classical Steiner minimum tree problem. Given a graph G = (V, E) with node weight function C : V → R+ and a sub...
CORR
2007
Springer
13 years 8 months ago
2007
Springer
The Steiner tree problem is a classical NP-hard optimization problem with a wide range of practical applications. In an instance of this problem, we are given an undirected graph ...
STOC
2004
ACM
14 years 9 months ago
2004
ACM
In this paper we present a sublinear time (1+ )-approximation randomized algorithm to estimate the weight of the minimum spanning tree of an n-point metric space. The running time...
WADS
2005
Springer
14 years 2 months ago
2005
Springer
Motivated by optimization problems in sensor coverage, we formulate and study the Minimum-Area Spanning Tree (mast) problem: Given a set P of n points in the plane, find a spannin...