Clustering Analysis for the Pareto Optimal Front in Multi-Objective Optimization

Bio-inspired algorithms are a suitable alternative for solving multi-objective optimization problems. Among different proposals, a widely used approach is based on the Pareto front. In this document, a proposal is made for the analysis of the optimal front for multi-objective optimization problems u...

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Main Authors: Lilian Astrid Bejarano, Helbert Eduardo Espitia, Carlos Enrique Montenegro
Format: Article
Language:English
Published: MDPI AG 2022-03-01
Series:Computation
Subjects:
Online Access:https://www.mdpi.com/2079-3197/10/3/37
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author Lilian Astrid Bejarano
Helbert Eduardo Espitia
Carlos Enrique Montenegro
author_facet Lilian Astrid Bejarano
Helbert Eduardo Espitia
Carlos Enrique Montenegro
author_sort Lilian Astrid Bejarano
collection DOAJ
description Bio-inspired algorithms are a suitable alternative for solving multi-objective optimization problems. Among different proposals, a widely used approach is based on the Pareto front. In this document, a proposal is made for the analysis of the optimal front for multi-objective optimization problems using clustering techniques. With this approach, an alternative is sought for further use and improvement of multi-objective optimization algorithms considering solutions and clusters found. To carry out the clustering, the methods k-means and fuzzy c-means are employed, in such a way that there are two alternatives to generate the possible clusters. Regarding the results, it is observed that both clustering algorithms perform an adequate separation of the optimal Pareto continuous fronts; for discontinuous fronts, k-means and fuzzy c-means obtain results that complement each other (there is no superior algorithm). In terms of processing time, k-means presents less execution time than fuzzy c-means.
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spelling doaj.art-3ea4e724487543da9097eccb076bf6032023-11-24T00:49:59ZengMDPI AGComputation2079-31972022-03-011033710.3390/computation10030037Clustering Analysis for the Pareto Optimal Front in Multi-Objective OptimizationLilian Astrid Bejarano0Helbert Eduardo Espitia1Carlos Enrique Montenegro2Facultad de Ingeniería, Universidad Distrital Francisco José de Caldas, Bogotá 110231, ColombiaFacultad de Ingeniería, Universidad Distrital Francisco José de Caldas, Bogotá 110231, ColombiaFacultad de Ingeniería, Universidad Distrital Francisco José de Caldas, Bogotá 110231, ColombiaBio-inspired algorithms are a suitable alternative for solving multi-objective optimization problems. Among different proposals, a widely used approach is based on the Pareto front. In this document, a proposal is made for the analysis of the optimal front for multi-objective optimization problems using clustering techniques. With this approach, an alternative is sought for further use and improvement of multi-objective optimization algorithms considering solutions and clusters found. To carry out the clustering, the methods k-means and fuzzy c-means are employed, in such a way that there are two alternatives to generate the possible clusters. Regarding the results, it is observed that both clustering algorithms perform an adequate separation of the optimal Pareto continuous fronts; for discontinuous fronts, k-means and fuzzy c-means obtain results that complement each other (there is no superior algorithm). In terms of processing time, k-means presents less execution time than fuzzy c-means.https://www.mdpi.com/2079-3197/10/3/37clusteringc-meansfuzzyPareto frontmulti-objectiveoptimization
spellingShingle Lilian Astrid Bejarano
Helbert Eduardo Espitia
Carlos Enrique Montenegro
Clustering Analysis for the Pareto Optimal Front in Multi-Objective Optimization
Computation
clustering
c-means
fuzzy
Pareto front
multi-objective
optimization
title Clustering Analysis for the Pareto Optimal Front in Multi-Objective Optimization
title_full Clustering Analysis for the Pareto Optimal Front in Multi-Objective Optimization
title_fullStr Clustering Analysis for the Pareto Optimal Front in Multi-Objective Optimization
title_full_unstemmed Clustering Analysis for the Pareto Optimal Front in Multi-Objective Optimization
title_short Clustering Analysis for the Pareto Optimal Front in Multi-Objective Optimization
title_sort clustering analysis for the pareto optimal front in multi objective optimization
topic clustering
c-means
fuzzy
Pareto front
multi-objective
optimization
url https://www.mdpi.com/2079-3197/10/3/37
work_keys_str_mv AT lilianastridbejarano clusteringanalysisfortheparetooptimalfrontinmultiobjectiveoptimization
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AT carlosenriquemontenegro clusteringanalysisfortheparetooptimalfrontinmultiobjectiveoptimization