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Evolutionary Multiobjective Optimization including Practically Desirable Solutions

Miyako Sagawa (), Natsuki Kusuno (), Hernán Aguirre (), Kiyoshi Tanaka () and Masataka Koishi ()

Advances in Operations Research, 2017, vol. 2017, 1-16

Abstract: In many practical situations the decision-maker has to pay special attention to decision space to determine the constructability of a potential solution, in addition to its optimality in objective space. Practically desirable solutions are those around preferred values in decision space and within a distance from optimality. This work investigates two methods to find simultaneously optimal and practically desirable solutions. The methods expand the objective space by adding fitness functions that favor preferred values for some variables. In addition, the methods incorporate a ranking mechanism that takes into account Pareto dominance in objective space and desirability in decision space. One method searches with one population in the expanded space, whereas the other one uses two populations to search concurrently in the original and expanded space. Our experimental results on benchmark and real world problems show that the proposed method can effectively find optimal and practically desirable solutions.

Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlaor:9094514

DOI: 10.1155/2017/9094514

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