Amin, G. R. and A. Emrouznejad (2011). “Parametric aggregation in ordered weighted averaging.” International Journal of Approximate Reasoning 52(6): 819-827.

Amin, G. R. and A. Emrouznejad (2011). “Parametric aggregation in ordered weighted averaging.” International Journal of Approximate Reasoning 52(6): 819-827.

Incorporating further information into the orderedweightedaveraging (OWA) operator weights is investigated in this paper. We first prove that for a constant orness the minimax disparity model [13] has unique optimal solution while the modified minimax disparity model [16] has alternative optimal OWA weights. Multiple optimal solutions in modified minimax disparity model provide us opportunity to define a parametricaggregation OWA which gives flexibility to decision makers in the process of aggregation and selecting the best alternative. Finally, the usefulness of the proposed parametricaggregation method is illustrated with an application in metasearch engine.