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» Tree-Approximations for the Weighted Cost-Distance Problem
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ISAAC
2001
Springer
99views Algorithms» more  ISAAC 2001»
13 years 9 months ago
Tree-Approximations for the Weighted Cost-Distance Problem
Christian Schindelhauer, Birgitta Weber
SODA
2000
ACM
96views Algorithms» more  SODA 2000»
13 years 6 months ago
Improved Steiner tree approximation in graphs
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...
Gabriel Robins, Alexander Zelikovsky
ICDE
2009
IEEE
133views Database» more  ICDE 2009»
13 years 11 months ago
STAR: Steiner-Tree Approximation in Relationship Graphs
— Large graphs and networks are abundant in modern information systems: entity-relationship graphs over relational data or Web-extracted entities, biological networks, social onl...
Gjergji Kasneci, Maya Ramanath, Mauro Sozio, Fabia...
IPL
1998
119views more  IPL 1998»
13 years 4 months ago
A 2.5-Factor Approximation Algorithm for the k-MST Problem
The k-MST problem requires finding that subset of at least k vertices of a given graph whose Minimum Spanning Tree has least weight amongst all subsets of at least k vertices. Th...
Sunil Arya, H. Ramesh
ISITA
2010
13 years 2 months ago
Approximating discrete probability distributions with causal dependence trees
Abstract--Chow and Liu considered the problem of approximating discrete joint distributions with dependence tree distributions where the goodness of the approximations were measure...
Christopher J. Quinn, Todd P. Coleman, Negar Kiyav...