A parametric approach to solving bicriterion shortest path problems

A parametric approach to solving bicriterion shortest path problems

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Article ID: iaor19931953
Country: Netherlands
Volume: 53
Issue: 1
Start Page Number: 81
End Page Number: 92
Publication Date: Jul 1991
Journal: European Journal of Operational Research
Authors: , ,
Abstract:

In this paper a new algorithm is developed to solve bicriterion shortest path problems. This algorithm first relaxes the integrality conditions and solves a simple bicriterion network problem. The bicriterion network problem is solved parametrically, exploiting properties associated with adjacent basis trees. Those Pareto-optimal paths not obtained by solving the LP relaxation are obtained using a label correcting procedure. Computational results comparing the parametric approach to the label setting approach and the K-th shortest path approach are also presented. They indicate that the parametric approach is orders of magnitude faster than the K-th shortest path approach for most problems tested. For problems with a positive correlation between the two coefficients, the parametric approach is seen to be significantly faster than the label setting approach.

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