Using mathematical programming heuristics in a multicriteria network flow context

J Figueira (), H M'Silti () and P Tolla ()
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J Figueira: LAMSADE, Université Paris-Dauphine
H M'Silti: LAMSADE, Université Paris-Dauphine
P Tolla: LAMSADE, Université Paris-Dauphine

Journal of the Operational Research Society, 1998, vol. 49, issue 8, 878-885

Abstract: Abstract In this paper, we propose a local search procedure to test the robustness of a specific ‘satisfying point’ neighbourhood. It consists of the following steps: (1) build an indifference area around the satisfying point in the criteria space by using thresholds (this takes into account the possible uncertainty, vagueness and/or inaccuracy of data); (2) find some points in the satisfying point neighbourhood and the corresponding solutions in the decision variables space; (3) test the quality of these solutions from the point of view of user preference. The indifference area is defined by adding constraints to the network model. This approach, which allows us to verify the adequacy of the model, has been applied to a set of multicriteria network flow problems. A heuristic method, based on Lagrangian duality and subgradient techniques, exploits the combinatorial structure of network flow problems in order to find certain feasible points.

Keywords: combinatorial analysis; heuristics; multi-objective; network and graphs; integer programming (search for similar items in EconPapers)
Date: 1998
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DOI: 10.1057/palgrave.jors.2600571

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