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» New primal-dual algorithms for Steiner tree problems
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ICCAD
1994
IEEE
67views Hardware» more  ICCAD 1994»
14 years 2 months ago
The reproducing placement problem with applications
We study a new placement problem: the reproducing placement problem (RPP). In each phase a module (or gate) is decomposed into two (or more) simpler modules. The goal is nd a \go...
Wei-Liang Lin, Majid Sarrafzadeh, Chak-Kuen Wong
CATS
2007
13 years 11 months ago
Some Structural and Geometric Properties of Two-Connected Steiner Networks
We consider the problem of constructing a shortest Euclidean 2-connected Steiner network (SMN) for a set of terminals. This problem has natural applications in the design of survi...
K. Hvam, L. Reinhardt, Pawel Winter, Martin Zachar...
SODA
2008
ACM
93views Algorithms» more  SODA 2008»
13 years 11 months ago
Minimum weight convex Steiner partitions
New tight bounds are presented on the minimum length of planar straight line graphs connecting n given points in the plane and having convex faces. Specifically, we show that the ...
Adrian Dumitrescu, Csaba D. Tóth
GECCO
2006
Springer
135views Optimization» more  GECCO 2006»
14 years 1 months ago
A tree-based genetic algorithm for building rectilinear Steiner arborescences
A rectilinear Steiner arborescence (RSA) is a tree, whose nodes include a prescribed set of points, termed the vertices, in the first quadrant of the Cartesian plane, and whose tr...
William A. Greene
APPROX
2007
Springer
87views Algorithms» more  APPROX 2007»
14 years 2 months ago
Stochastic Steiner Tree with Non-uniform Inflation
We study the Steiner Tree problem in the model of two-stage stochastic optimization with non-uniform inflation factors, and give a poly-logarithmic approximation factor for this pr...
Anupam Gupta, MohammadTaghi Hajiaghayi, Amit Kumar