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    IPCO
    2008
    91views Optimization» more  IPCO 2008»
    New Geometry-Inspired Relaxations and Algorithms for the Metric Steiner Tree Problem
    14 years 4 months ago
    New Geometry-Inspired Relaxations and Algorithms for the Metric Steiner Tree Problem
    Download  www.cc.gatech.edu
    Abstract. Determining the integrality gap of the bidirected cut relaxation for the metric Steiner tree problem, and exploiting it algorithmically, is a long-standing open problem. ...
    Deeparnab Chakrabarty, Nikhil R. Devanur, Vijay V....
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    RANDOM
    2001
    Springer
    117views Theoretical Computer Science» more  RANDOM 2001»
    On the Equivalence between the Primal-Dual Schema and the Local-Ratio Technique
    14 years 7 months ago
    On the Equivalence between the Primal-Dual Schema and the Local-Ratio Technique
    Download  www.math.tu-berlin.de
    We discuss two approximation approaches, the primal-dual schema and the local-ratio technique. We present two relatively simple frameworks, one for each approach, which extend know...
    Reuven Bar-Yehuda, Dror Rawitz
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