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Emergent mating topologies in spatially structured genetic algorithms

Published: 08 July 2006 Publication History

Abstract

The application of network analysis to emergent mating topologies in spatially structured genetic algorithms is presented in this preliminary study as a framework for inferring evolutionary dynamics in recombinant evolutionary search. Emergent mating topologies of populations evolving on regular, scale-free, and small-world imposed spatial topologies are analyzed. When the population evolves on a scale-free imposed spatial topology, the topology of mating interactions is also found to be scale-free. However, due to the random initial placement of individuals in the spatial topology, the scale-free mating topology lacks correlation between fitness and vertex connectivity, resulting in highly variable convergence rates. Scale-free mating topologies are also shown to emerge on regular imposed spatial topologies under high selection pressure. Since these scale-free emergent mating topologies self-organize such that the most-fit individuals are inherently located in highly connected vertices, such emergent mating topologies are shown to promote rapid convergence on the test problem considered herein. The emergent mating topologies of populations evolving on small-world imposed spatial topologies are not found to possess scale-free or small-world characteristics. However, due to the decrease in the characteristic path length of the emergent mating topology, the rate of population convergence is shown to increase as the imposed spatial topology is tuned from regular to small-world.

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    cover image ACM Conferences
    GECCO '06: Proceedings of the 8th annual conference on Genetic and evolutionary computation
    July 2006
    2004 pages
    ISBN:1595931864
    DOI:10.1145/1143997
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    Publication History

    Published: 08 July 2006

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    Author Tags

    1. emergence
    2. genetic algorithms
    3. mating topologies
    4. network

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    GECCO06: Genetic and Evolutionary Computation Conference
    July 8 - 12, 2006
    Washington, Seattle, USA

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    GECCO '06 Paper Acceptance Rate 205 of 446 submissions, 46%;
    Overall Acceptance Rate 1,669 of 4,410 submissions, 38%

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    • (2014)Dynamic and Partially Connected Ring Topologies for Evolutionary Algorithms with Structured PopulationsApplications of Evolutionary Computation10.1007/978-3-662-45523-4_54(665-677)Online publication date: 29-Nov-2014
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    • (2013)Evolutionary Algorithms Based on Game Theory and Cellular Automata with CoalitionsHandbook of Optimization10.1007/978-3-642-30504-7_19(481-503)Online publication date: 2013
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    • (2012)Study of different small-world topology generation mechanisms for Genetic Algorithms2012 IEEE Congress on Evolutionary Computation10.1109/CEC.2012.6256543(1-8)Online publication date: Jun-2012
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    • (2010)Estimation of Bayesian networks algorithms in a class of complex networksIEEE Congress on Evolutionary Computation10.1109/CEC.2010.5586511(1-8)Online publication date: Jul-2010
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