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    IPCO
    2008
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    The Stable Roommates Problem with Choice Functions
    14 years 29 days ago
    The Stable Roommates Problem with Choice Functions
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    Tamás Fleiner
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    IPCO
    2008
    131views Optimization» more  IPCO 2008»
    Modeling Disjunctive Constraints with a Logarithmic Number of Binary Variables and Constraints
    14 years 29 days ago
    Modeling Disjunctive Constraints with a Logarithmic Number of Binary Variables and Constraints
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    Juan Pablo Vielma, George L. Nemhauser
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    IPCO
    2008
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    Can Pure Cutting Plane Algorithms Work?
    14 years 29 days ago
    Can Pure Cutting Plane Algorithms Work?
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    We discuss an implementation of the lexicographic version of Gomory's fractional cutting plane method and of two heuristics mimicking the latter. In computational testing on a...
    Arrigo Zanette, Matteo Fischetti, Egon Balas
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    IPCO
    2008
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    Binary Positive Semidefinite Matrices and Associated Integer Polytopes
    14 years 29 days ago
    Binary Positive Semidefinite Matrices and Associated Integer Polytopes
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    We consider the positive semidefinite (psd) matrices with binary entries. We give a characterisation of such matrices, along with a graphical representation. We then move on to co...
    Adam N. Letchford, Michael M. Sørensen
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    IPCO
    2008
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    Constraint Orbital Branching
    14 years 29 days ago
    Constraint Orbital Branching
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    Orbital branching is a method for branching on variables in integer programming that reduces the likelihood of evaluating redundant, isomorphic nodes in the branch-and-bound proce...
    James Ostrowski, Jeff Linderoth, Fabrizio Rossi, S...
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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 29 days 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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    IPCO
    2008
    136views Optimization» more  IPCO 2008»
    Computing with Multi-row Gomory Cuts
    14 years 29 days ago
    Computing with Multi-row Gomory Cuts
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    Recent advances on the understanding of valid inequalities from the infinite group relaxation has opened the possibility of finding a computationally effective extension to GMI cu...
    Daniel G. Espinoza
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    IPCO
    2008
    103views Optimization» more  IPCO 2008»
    Lifting Integer Variables in Minimal Inequalities Corresponding to Lattice-Free Triangles
    14 years 29 days ago
    Lifting Integer Variables in Minimal Inequalities Corresponding to Lattice-Free Triangles
    Download  www2.isye.gatech.edu
    Recently, Andersen et al. [1] and Borozan and Cornu
    Santanu S. Dey, Laurence A. Wolsey
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    IPCO
    2008
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    A New Approach to Splitting-Off
    14 years 29 days ago
    A New Approach to Splitting-Off
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    Attila Bernáth, Tamás Király
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    IPCO
    2008
    143views Optimization» more  IPCO 2008»
    Primal-Dual Schema for Capacitated Covering Problems
    14 years 29 days ago
    Primal-Dual Schema for Capacitated Covering Problems
    Download  people.orie.cornell.edu
    Tim Carnes, David B. Shmoys
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