2010
DOI: 10.1287/ijoc.1090.0342
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A Recursive Algorithm for Finding All Nondominated Extreme Points in the Outcome Set of a Multiobjective Integer Programme

Abstract: International audienceIn this paper, we present two versions of an algorithm for the computation of all nondominated extreme points in the outcome set of a multiobjective integer programme. We define adjacency of these points based on weight space decomposition. Thus, our algorithms generalise the well-known dichotomic scheme to compute the set of nondominated extreme points in the outcome set of a biobjective programme. Both algorithms are illustrated with and numerically tested on instances of the assignment… Show more

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Cited by 80 publications
(69 citation statements)
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“…A reason why this work has not yet been realized is that the first phase of the 2PPLS with three or more objective is more complicated, because the correspondance between the geometrical and the algebraic interpretation of the weight sets is not more valid (Przybylski et al 2007). Experiments should be done to see if the use of a sophisticated method as first phase will be yet worthwhile, or if a simple method based on randomly or uniformly generated weight sets would be sufficient.…”
Section: Resultsmentioning
confidence: 99%
“…A reason why this work has not yet been realized is that the first phase of the 2PPLS with three or more objective is more complicated, because the correspondance between the geometrical and the algebraic interpretation of the weight sets is not more valid (Przybylski et al 2007). Experiments should be done to see if the use of a sophisticated method as first phase will be yet worthwhile, or if a simple method based on randomly or uniformly generated weight sets would be sufficient.…”
Section: Resultsmentioning
confidence: 99%
“…In a more general case of a linear but unknown utility function, it is sufficient to identify all extreme supported nondominated objective vectors, since the optimal solution must come from this set. Przybylski et al [2010b], Özpeynirci and Köksalan [2010] propose similar algorithms to identify all extreme nondominated objective vectors for the MOIP problem. Both algorithms use a weighted single objective function and partition the weight space in order to enumerate the extreme supported nondominated set; an approach first proposed for Multi-Objective Linear Programming (MOLP) by Sun [2000, 2002].…”
Section: Literaturementioning
confidence: 99%
“…Among these, the Evans-Steuer algorithm [15] is implemented as a software called ADBASE [31]. The idea of decomposing the parameter set is also used to solve multiobjective integer programs, see for instance [26].In [27], Ruszczyński and Vanderbei developed an algorithm to solve LVOPs with two objectives and the efficiency of this algorithm is equivalent to solving a single scalar linear program by the parametric simplex algorithm. Indeed, the algorithm is a modification of the parametric simplex method and it produces a subset of efficient solutions that generate the whole efficient frontier in case the problem is bounded.Apart from the algorithms that work in the variable or parameter space, there are algorithms working in the objective space.…”
mentioning
confidence: 99%