An estimation method for concave additive utility functions in multiobjective linear programming

An estimation method for concave additive utility functions in multiobjective linear programming

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Article ID: iaor19921930
Country: France
Volume: 24
Start Page Number: 331
End Page Number: 349
Publication Date: May 1990
Journal: RAIRO Operations Research
Authors: ,
Abstract:

In an important class of multiobjective linear programming methods the determination of a satisfactory solution is realized by the maximization of the decision maker’s utility function. Several methods have been proposed for the assessment of utility functions. These methods require different types of information (cardinal or ordinal) and rely on different assumptions for the utility function, such as linearity, additivity and concavity. The latter property, although restrictive for the decision maker’s preferences, provides a sufficient condition for a global optimum. In this paper an extension of the algorithm UTASTAR to the assessment of concave utility functions is presented. The new algorithm is illustrated by a numerical example. Finally, the degree to which the concavity restriction influences the results of the assessment process is studied and discussed.

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