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The tolerance approach in multiobjective linear fractional programming. (English) Zbl 0892.90150

Summary: When solving a multiobjective programming problem by the weighted sum approach, weights represent the relative importance associated to the objectives. As these values are usually imprecise, it is important to analyze the sensitivity of the solution under possible deviations on the estimated values. In this sense, the tolerance approach provides a direct measure of how weights may vary simultaneously and independently from their estimated values while still retaining the same efficient solution.

This paper provides an explicit expression to the maximum tolerance on weights in a multiobjective linear fractional programming problem when all the denominators are equal. An application is also presented to illustrate how the results may help the decision maker to choose a most satisfactory solution in a production problem.

MSC:
90C29Multi-objective programming; goal programming
90B50Management decision making, including multiple objectives
90C31Sensitivity, stability, parametric optimization
90C32Fractional programming
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