Theoretical and empirical study of the (1 + (?, ?)) Ea on the leadingones problem

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Abstract

In this work we provide a theoretical and empirical study of the (1 + (?, ?)) EA on the LeadingOnes problem. We prove an upper bound of O(n2) fitness evaluations on the expected runtime for all population sizes ? < n. This asymptotic bound does not depend on the parameter ?. We show via experiments that the value of ? has a small influence on the runtime (less than a factor of two). The value of ? that optimizes the runtime is small relative to n. We propose an extension of the existing (1 + (?, ?)) EA by using different population sizes in the mutation and in the crossover phase of the algorithm and show via experiments that this modification can outperform the original algorithm by a small constant factor.

Original languageEnglish
Title of host publicationGECCO 2019 Companion - Proceedings of the 2019 Genetic and Evolutionary Computation Conference Companion
PublisherAssociation for Computing Machinery, Inc
Pages2036-2039
Number of pages4
ISBN (Electronic)9781450367486
DOIs
Publication statusPublished - 13 Jul 2019
Event2019 Genetic and Evolutionary Computation Conference, GECCO 2019 - Prague, Czech Republic
Duration: 13 Jul 201917 Jul 2019

Publication series

NameGECCO 2019 Companion - Proceedings of the 2019 Genetic and Evolutionary Computation Conference Companion

Conference

Conference2019 Genetic and Evolutionary Computation Conference, GECCO 2019
Country/TerritoryCzech Republic
CityPrague
Period13/07/1917/07/19

Keywords

  • Crossover
  • Runtime Analysis
  • Theory

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