Weighted Method Based Trust Region-Particle Swarm Optimization for Multi-Objective Optimization
American Journal of Applied Mathematics
Volume 3, Issue 3, June 2015, Pages: 81-89
Received: Feb. 28, 2015; Accepted: Apr. 3, 2015; Published: Apr. 14, 2015
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M. A. El-Shorbagy, Department of Basic Engineering Science, Faculty of Engineering, Menoufiya University, Shebin El-Kom, Egypt
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In this study, a hybrid approach combining trust region (TR) algorithm and particle swarm optimization (PSO) is proposed to solve multi-objective optimization problems (MOOPs). The proposed approach integrates the merits of both TR and PSO. Firstly, the MOOP converting by weighted method to a single objective optimization problem (SOOP) and some of the points in the search space are generated. Secondly, TR algorithm is applied to solve the SOOP to obtain a point on the Pareto frontier. Finally, all the points that have been obtained by TR are used as particles position for PSO; where homogeneous PSO is applied to get all nondominated solutions on the Pareto frontier. In addition, to restrict velocity of the particles and control it, a dynamic constriction factor is presented. Various kinds of multiobjective (MO) benchmark problems have been reported to show the importance of hybrid algorithm in generating Pareto optimal set. The results have demonstrated the superiority of the proposed algorithm to solve MOOPs.
Multi-Objective Optimization, Trust Region algorithm, Particle Swarm Optimization, Pareto Optimal Set, Weighted Method
To cite this article
M. A. El-Shorbagy, Weighted Method Based Trust Region-Particle Swarm Optimization for Multi-Objective Optimization, American Journal of Applied Mathematics. Vol. 3, No. 3, 2015, pp. 81-89. doi: 10.11648/j.ajam.20150303.11
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