60 search results - page 3 / 12 » Approximating a Finite Metric by a Small Number of Tree Metr... |
ALGOSENSORS
2009
Springer
13 years 5 months ago
2009
Springer
Abstract. We describe a novel approach for constructing a single spanning tree for data aggregation towards a sink node. The tree is universal in the sense that it is static and in...
VLDB
2002
ACM
14 years 7 months ago
2002
ACM
We propose a new data structure to search in metric spaces. A metric space is formed by a collection of objects and a distance function de ned among them, which satis es the trian...
COMPGEOM
2000
ACM
13 years 11 months ago
2000
ACM
We present an (1+ε)-approximation algorithm for computing the minimum-spanning tree of points in a planar arrangement of lines, where the metric is the number of crossings betwee...
SODA
2007
ACM
13 years 8 months ago
2007
ACM
This paper addresses the basic question of how well can a tree approximate distances of a metric space or a graph. Given a graph, the problem of constructing a spanning tree in a ...
SODA
2001
ACM
13 years 8 months ago
2001
ACM
Consider an edge-weighted tree T = (V, E, w : E R+ ), in which a subset R of the nodes (called the required nodes) are colored red and the remaining nodes in S = V \R are colored ...