Angle-Based Crowding Degree Estimation for Many-Objective Optimization

Yani Xue*, Miqing Li, Xiaohui Liu

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Many-objective optimization, which deals with an optimization problem with more than three objectives, poses a big challenge to various search techniques, including evolutionary algorithms. Recently, a meta-objective optimization approach (called bi-goal evolution, BiGE) which maps solutions from the original high-dimensional objective space into a bi-goal space of proximity and crowding degree has received increasing attention in the area. However, it has been found that BiGE tends to struggle on a class of many-objective problems where the search process involves dominance resistant solutions, namely, those solutions with an extremely poor value in at least one of the objectives but with (near) optimal values in some of the others. It is difficult for BiGE to get rid of dominance resistant solutions as they are Pareto nondominated and far away from the main population, thus always having a good crowding degree. In this paper, we propose an angle-based crowding degree estimation method for BiGE (denoted as aBiGE) to replace distance-based crowding degree estimation in BiGE. Experimental studies show the effectiveness of this replacement.

Original languageEnglish
Title of host publicationAdvances in Intelligent Data Analysis XVIII - 18th International Symposium on Intelligent Data Analysis, IDA 2020, Proceedings
EditorsMichael R. Berthold, Ad Feelders, Georg Krempl
PublisherSpringer Vieweg
Pages574-586
Number of pages13
ISBN (Print)9783030445836
DOIs
Publication statusPublished - 2020
Event18th International Conference on Intelligent Data Analysis, IDA 2020 - Konstanz, Germany
Duration: 27 Apr 202029 Apr 2020

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume12080 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference18th International Conference on Intelligent Data Analysis, IDA 2020
Country/TerritoryGermany
CityKonstanz
Period27/04/2029/04/20

Bibliographical note

Publisher Copyright:
© 2020, The Author(s).

Keywords

  • Angle-based crowding degree estimation
  • Bi-goal evolution
  • Evolutionary algorithm
  • Many-objective optimization

ASJC Scopus subject areas

  • Theoretical Computer Science
  • General Computer Science

Fingerprint

Dive into the research topics of 'Angle-Based Crowding Degree Estimation for Many-Objective Optimization'. Together they form a unique fingerprint.

Cite this