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» On the Approximability of the Steiner Tree Problem
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SODA
2010
ACM
178views Algorithms» more  SODA 2010»
14 years 5 months ago
Tree Embeddings for Two-Edge-Connected Network Design
The group Steiner problem is a classical network design problem where we are given a graph and a collection of groups of vertices, and want to build a min-cost subgraph that conne...
Anupam Gupta, Ravishankar Krishnaswamy, R. Ravi
SODA
2001
ACM
150views Algorithms» more  SODA 2001»
13 years 9 months ago
A faster implementation of the Goemans-Williamson clustering algorithm
We give an implementation of the Goemans-Williamson clustering procedure which is at the core of several approximation algorithms including those for Generalized Steiner Trees, Pr...
Richard Cole, Ramesh Hariharan, Moshe Lewenstein, ...
VLSID
2002
IEEE
109views VLSI» more  VLSID 2002»
14 years 8 months ago
Probabilistic Analysis of Rectilinear Steiner Trees
Steiner tree is a fundamental problem in the automatic interconnect optimization for VLSI design. We present a probabilistic analysis method for constructing rectilinear Steiner t...
Chunhong Chen
DAC
2006
ACM
14 years 8 months ago
Circuit simulation based obstacle-aware Steiner routing
Steiner routing is a fundamental yet NP-hard problem in VLSI design and other research fields. In this paper, we propose to model the routing graph by an RC network with routing t...
Yiyu Shi, Paul Mesa, Hao Yu, Lei He
IPCO
2007
94views Optimization» more  IPCO 2007»
13 years 9 months ago
Infrastructure Leasing Problems
Consider the following Steiner Tree leasing problem. Given a graph G = (V, E) with root r, and a sequence of terminal sets Dt ⊆ V for each day t ∈ [T]. A feasible solution to t...
Barbara M. Anthony, Anupam Gupta