What is it about?
As Analytic Hierarchy Process (AHP) relies on decision makers (DM) pairwise comparisons, a problem may occur if some comparisons are not well done. This issue, known as inconsistency, appears when an inconsistency threshold is violated. One way to deal with inconsistency is to redo all judgments, as many times as needed, in order to reach acceptable levels.
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Why is it important?
This work proposes a nonlinear programming model that reduces inconsistency to zero or near zero, without needing to redo all judgments. The reduction is achieved by adjusting the original judgments in a minimum way, keeping the DM’s decisions within a tolerable range. Only discrete values are generated, so the solution respects the limits of the Saaty scale (1–9).
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This page is a summary of: Nonlinear programming applied to the reduction of inconsistency in the AHP method, Annals of Operations Research, November 2014, Springer Science + Business Media,
DOI: 10.1007/s10479-014-1750-z.
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