An Analysis of the Preferences of Distribution Indicators in Evolutionary Multi-Objective Optimization

Fuente: arXiv
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Autori principali: Falcón-Cardona, Jesús Guillermo, Nezhadmoghaddam, Mahboubeh, Bernal-Zubieta, Emilio
Natura: Preprint
Pubblicazione: 2024
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author Falcón-Cardona, Jesús Guillermo
Nezhadmoghaddam, Mahboubeh
Bernal-Zubieta, Emilio
author_facet Falcón-Cardona, Jesús Guillermo
Nezhadmoghaddam, Mahboubeh
Bernal-Zubieta, Emilio
contents The distribution of objective vectors in a Pareto Front Approximation (PFA) is crucial for representing the associated manifold accurately. Distribution Indicators (DIs) assess the distribution of a PFA numerically, utilizing concepts like distance calculation, Biodiversity, Entropy, Potential Energy, or Clustering. Despite the diversity of DIs, their strengths and weaknesses across assessment scenarios are not well-understood. This paper introduces a taxonomy for classifying DIs, followed by a preference analysis of nine DIs, each representing a category in the taxonomy. Experimental results, considering various PFAs under controlled scenarios (loss of coverage, loss of uniformity, pathological distributions), reveal that some DIs can be misleading and need cautious use. Additionally, DIs based on Biodiversity and Potential Energy show promise for PFA evaluation and comparison of Multi-Objective Evolutionary Algorithms.
format Preprint
id arxiv_https___arxiv_org_abs_2403_14838
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle An Analysis of the Preferences of Distribution Indicators in Evolutionary Multi-Objective Optimization
Falcón-Cardona, Jesús Guillermo
Nezhadmoghaddam, Mahboubeh
Bernal-Zubieta, Emilio
Neural and Evolutionary Computing
The distribution of objective vectors in a Pareto Front Approximation (PFA) is crucial for representing the associated manifold accurately. Distribution Indicators (DIs) assess the distribution of a PFA numerically, utilizing concepts like distance calculation, Biodiversity, Entropy, Potential Energy, or Clustering. Despite the diversity of DIs, their strengths and weaknesses across assessment scenarios are not well-understood. This paper introduces a taxonomy for classifying DIs, followed by a preference analysis of nine DIs, each representing a category in the taxonomy. Experimental results, considering various PFAs under controlled scenarios (loss of coverage, loss of uniformity, pathological distributions), reveal that some DIs can be misleading and need cautious use. Additionally, DIs based on Biodiversity and Potential Energy show promise for PFA evaluation and comparison of Multi-Objective Evolutionary Algorithms.
title An Analysis of the Preferences of Distribution Indicators in Evolutionary Multi-Objective Optimization
topic Neural and Evolutionary Computing
url https://arxiv.org/abs/2403.14838