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     Research Journal of Applied Sciences, Engineering and Technology


Multi-Objective Optimization of a Complex System using GPSIA+DS

1Okafor Ekene Gabriel, 2Sun Youchao and 3Uhuegho Osaretin Kole
1National Research Institute for Chemical Technology, Nigeria
2Nanjing University of Aeronautics and Astronautics, Nanjing, China
3Nigerian College of Aviation Technology, Nigeria
Research Journal of Applied Sciences, Engineering and Technology  2013  24:4621-4629
http://dx.doi.org/10.19026/rjaset.6.3477  |  © The Author(s) 2013
Received: February 02, 2013  |  Accepted: March 02, 2013  |  Published: December 25, 2013

Abstract

In this study, an efficient biologically inspired constrained multi-objective optimization algorithm called Genetic Pareto Set Identification Algorithm plus Different Sex (GPSIA+DS) was developed. A complex system comprising of mixed configuration, k-out-of-n and redundant subsystem was used to validate GPSIA+DS in comparison with Genetic Pareto Set Identification Algorithm (GPSIA) and Fast Non–Dominated Sorting Genetic Algorithm plus Constrain Domination (NSGA-II+CD). The optimization strategy based on Genetic Pareto Set Identification Algorithm (GPSIA) only considered feasible solutions. That is, solutions, which satisfies all constraints conditions. Infeasible solutions could facilitate faster convergence to the true Pareto front. GPSIA+DS, which considers feasible and infeasible solutions in it optimization strategy was shown to outperform GPSIA and NSGA-II for the test problem considered.

Keywords:

Complex system, constrain, Genetic Algorithm (GA), Multi-Objective Optimization (MOO), Pareto set,


References


Competing interests

The authors have no competing interests.

Open Access Policy

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Copyright

The authors have no competing interests.

ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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