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    COR
    2006
    53views more  COR 2006»
    Orthogonal packing of rectangular items within arbitrary convex regions by nonlinear optimization
    13 years 4 months ago
    Orthogonal packing of rectangular items within arbitrary convex regions by nonlinear optimization
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    Ernesto G. Birgin, José Mario Martín...
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    COR
    2006
    122views more  COR 2006»
    Experimental Analysis of Approximation Algorithms for the Vertex Cover and Set Covering Problems
    13 years 4 months ago
    Experimental Analysis of Approximation Algorithms for the Vertex Cover and Set Covering Problems
    Download  www.lia.ufc.br
    Several approximation algorithms with proven performance guarantees have been proposed to find approximate solutions to classical combinatorial optimization problems. However, the...
    Fernando C. Gomes, Cláudio Nogueira de Mene...
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    COR
    2006
    86views more  COR 2006»
    Minimizing the earliness-tardiness costs on a single machine
    13 years 4 months ago
    Minimizing the earliness-tardiness costs on a single machine
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    In this paper the one-machine scheduling problem with linear earliness and tardiness costs is considered. The7 cost functions are job dependent and asymmetric. The problem consist...
    Jakub Bauman, Joanna Józefowska
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    COR
    2006
    61views more  COR 2006»
    Exact procedures for solving the discrete ordered median problem
    13 years 4 months ago
    Exact procedures for solving the discrete ordered median problem
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    Natashia Boland, Patricia Domínguez-Mar&iac...
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    COR
    2006
    94views more  COR 2006»
    A comparison of two different formulations for arc routing problems on mixed graphs
    13 years 4 months ago
    A comparison of two different formulations for arc routing problems on mixed graphs
    Download  www.uv.es
    Arc Routing Problems on mixed graphs have been modelled in the literature either using just one variable per edge or associating to each edge two variables, each one representing ...
    Angel Corberán, Enrique Mota, José M...
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    COR
    2006
    108views more  COR 2006»
    Variable neighborhood search and local branching
    13 years 4 months ago
    Variable neighborhood search and local branching
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    In this paper we develop a variable neighborhood search (VNS) heuristic for solving mixed-integer programs (MIPs). It uses CPLEX, the general-purpose MIP solver, as a black-box. N...
    Pierre Hansen, Nenad Mladenovic, Dragan Urosevic
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    COR
    2006
    97views more  COR 2006»
    Evaluating the performance of cost-based discretization versus entropy- and error-based discretization
    13 years 4 months ago
    Evaluating the performance of cost-based discretization versus entropy- and error-based discretization
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    Discretization is defined as the process that divides continuous numeric values into intervals of discrete categorical values. In this article, the concept of cost-based discretiz...
    Davy Janssens, Tom Brijs, Koen Vanhoof, Geert Wets
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    COR
    2006
    122views more  COR 2006»
    Multiple task assignments for cooperating uninhabited aerial vehicles using genetic algorithms
    13 years 4 months ago
    Multiple task assignments for cooperating uninhabited aerial vehicles using genetic algorithms
    Download  www2.ece.ohio-state.edu
    A problem of assigning cooperating uninhabited aerial vehicles to perform multiple tasks on multiple targets is posed as a new combinatorial optimization problem. A genetic algori...
    Tal Shima, Steven J. Rasmussen, Andrew G. Sparks, ...
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    COR
    2006
    65views more  COR 2006»
    Systematic construction of examples for cycling in the simplex method
    13 years 4 months ago
    Systematic construction of examples for cycling in the simplex method
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    Peter Zörnig
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    COR
    2006
    113views more  COR 2006»
    Capacitated facility location problem with general setup cost
    13 years 4 months ago
    Capacitated facility location problem with general setup cost
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    This paper presents an extension of the capacitated facility location problem (CFLP), in which the general setup cost functions and multiple facilities in one site are considered....
    Ling-Yun Wu, Xiang-Sun Zhang, Ju-Liang Zhang
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