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Seminario Dottorato: PAINT: PAreto front INTerpolation for solving wastewater treatment problems

Wednesday 23 May 2012 - Markus Hartikainen

ARGOMENTI: Seminari Dottorato

SEMINARIO DOTTORATO
Wednesday 23 May 2012 h. 15:00, room 2BC30
Markus Hartikainen (Jyvaskyla University, Finland)
"PAINT: PAreto front INTerpolation for solving wastewater treatment problems"

-Abstract
In many real life problems, one seeks for an optimal solution in accordance with several criteria, which can be conflicting (for example, you want a fast car but you don't want to spend too much). These situations are approached mathematically by the theory of multiobjective optimization. In the solution of multiobjective optimization problems, interactive methods have been proven effective. In such methods, an iterative procedure is used to improve the solutions available to satisfy the preferences of a decision maker. Because of the lack of closed form equations for many real-life quantities to be optimized, simulation may have to be used to compute the values of objectives for various values of the decision variables. As a consequence, multiobjective optimization problems may be computationally expensive. We have developed a method called PAINT, which constructs an interpolation between a set of given Pareto optimal solutions. In this talk, we demonstrate how the PAINT method works and can be applied to a multiobjective wastewater treatment planning problem.

Rif. int. C. Marastoni, T. Vargiolu

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