An Entropy-Based Multiobjective Evolutionary Algorithm with an Enhanced Elite Mechanism

Multiobjective optimization problem (MOP) is an important and challenging topic in the fields of industrial design and scientific research. Multi-objective evolutionary algorithm (MOEA) has proved to be one of the most efficient algorithms solving the multi-objective optimization. In this paper, we...

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Main Authors: Yufang Qin, Junzhong Ji, Chunnian Liu
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:Applied Computational Intelligence and Soft Computing
Online Access:http://dx.doi.org/10.1155/2012/682372
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author Yufang Qin
Junzhong Ji
Chunnian Liu
author_facet Yufang Qin
Junzhong Ji
Chunnian Liu
author_sort Yufang Qin
collection DOAJ
description Multiobjective optimization problem (MOP) is an important and challenging topic in the fields of industrial design and scientific research. Multi-objective evolutionary algorithm (MOEA) has proved to be one of the most efficient algorithms solving the multi-objective optimization. In this paper, we propose an entropy-based multi-objective evolutionary algorithm with an enhanced elite mechanism (E-MOEA), which improves the convergence and diversity of solution set in MOPs effectively. In this algorithm, an enhanced elite mechanism is applied to guide the direction of the evolution of the population. Specifically, it accelerates the population to approach the true Pareto front at the early stage of the evolution process. A strategy based on entropy is used to maintain the diversity of population when the population is near to the Pareto front. The proposed algorithm is executed on widely used test problems, and the simulated results show that the algorithm has better or comparative performances in convergence and diversity of solutions compared with two state-of-the-art evolutionary algorithms: NSGA-II, SPEA2 and the MOSADE.
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institution Kabale University
issn 1687-9724
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language English
publishDate 2012-01-01
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spelling doaj-art-9f35d3d758634b7082622c55e7c3ebf32025-02-03T01:30:17ZengWileyApplied Computational Intelligence and Soft Computing1687-97241687-97322012-01-01201210.1155/2012/682372682372An Entropy-Based Multiobjective Evolutionary Algorithm with an Enhanced Elite MechanismYufang Qin0Junzhong Ji1Chunnian Liu2Beijing Municipal Key Laboratory of Multimedia and Intelligent Software Technology, College of Computer Science and Technology, Beijing University of Technology, Beijing 100124, ChinaBeijing Municipal Key Laboratory of Multimedia and Intelligent Software Technology, College of Computer Science and Technology, Beijing University of Technology, Beijing 100124, ChinaBeijing Municipal Key Laboratory of Multimedia and Intelligent Software Technology, College of Computer Science and Technology, Beijing University of Technology, Beijing 100124, ChinaMultiobjective optimization problem (MOP) is an important and challenging topic in the fields of industrial design and scientific research. Multi-objective evolutionary algorithm (MOEA) has proved to be one of the most efficient algorithms solving the multi-objective optimization. In this paper, we propose an entropy-based multi-objective evolutionary algorithm with an enhanced elite mechanism (E-MOEA), which improves the convergence and diversity of solution set in MOPs effectively. In this algorithm, an enhanced elite mechanism is applied to guide the direction of the evolution of the population. Specifically, it accelerates the population to approach the true Pareto front at the early stage of the evolution process. A strategy based on entropy is used to maintain the diversity of population when the population is near to the Pareto front. The proposed algorithm is executed on widely used test problems, and the simulated results show that the algorithm has better or comparative performances in convergence and diversity of solutions compared with two state-of-the-art evolutionary algorithms: NSGA-II, SPEA2 and the MOSADE.http://dx.doi.org/10.1155/2012/682372
spellingShingle Yufang Qin
Junzhong Ji
Chunnian Liu
An Entropy-Based Multiobjective Evolutionary Algorithm with an Enhanced Elite Mechanism
Applied Computational Intelligence and Soft Computing
title An Entropy-Based Multiobjective Evolutionary Algorithm with an Enhanced Elite Mechanism
title_full An Entropy-Based Multiobjective Evolutionary Algorithm with an Enhanced Elite Mechanism
title_fullStr An Entropy-Based Multiobjective Evolutionary Algorithm with an Enhanced Elite Mechanism
title_full_unstemmed An Entropy-Based Multiobjective Evolutionary Algorithm with an Enhanced Elite Mechanism
title_short An Entropy-Based Multiobjective Evolutionary Algorithm with an Enhanced Elite Mechanism
title_sort entropy based multiobjective evolutionary algorithm with an enhanced elite mechanism
url http://dx.doi.org/10.1155/2012/682372
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