141 search results - page 2 / 29 » Approximating Steiner trees in graphs with restricted weight... |
SODA
2000
ACM
14 years 11 months ago
2000
ACM
The Steiner tree problem in weighted graphs seeks a minimum weight connected subgraph containing a given subset of the vertices terminals. We present a new polynomial-time heurist...
SODA
2001
ACM
14 years 11 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 ...
COCOON
2005
Springer
15 years 3 months ago
2005
Springer
The terminal Steiner tree problem (TST) consists of finding a minimum cost Steiner tree where each terminal is a leaf. We describe a factor 2ρ−ρ/(3ρ−2) approximation algor...
ICDE
2009
IEEE
15 years 4 months ago
2009
IEEE
— Large graphs and networks are abundant in modern information systems: entity-relationship graphs over relational data or Web-extracted entities, biological networks, social onl...
ISAAC
2004
Springer
15 years 3 months ago
2004
Springer
The Steiner tree problem asks for a minimum cost tree spanning a given set of terminals S ⊆ V in a weighted graph G = (V, E, c), c : E → R+ . In this paper we consider a genera...