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On finding representative non-dominated points for bi-objective integer network flow problems

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<mark>Journal publication date</mark>1/08/2014
<mark>Journal</mark>Computers and Operations Research
Number of pages10
Pages (from-to)1-10
Publication StatusPublished
Early online date25/02/14
<mark>Original language</mark>English


This paper proposes a new algorithm to find a representation of the set of all non-dominated points of the bi-objective integer network flow problem. The algorithm solves a sequence of ε-constraint problems with a branch-and-bound algorithm to find a subset of non-dominated points that represents the set of all non-dominated points well in the sense of coverage or uniformity. At each iteration of the algorithm, one non-dominated point, determined by solving one ε-constraint problem, is added to the representation until it is guaranteed that the representation has the desired quality. Computational experiments on different problem types show the efficacy of the algorithm.