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Improved analysis methods for crossover-based algorithms

Published: 08 July 2009 Publication History

Abstract

We deepen the theoretical analysis of the genetic algorithm for the all-pairs shortest path problem proposed by Doerr, Happ and Klein (GECCO 2008). We show that the growth of the paths through crossover operations can be analyzed without the previously used approach of waiting until all paths of a certain length are present in the population. This allows to prove an improved guarantee for the optimization time of O(n3.25 log1/4(n). We also show that this bound is asymptotically tight. Besides the mere run-time result, our analysis is a step towards understanding how crossover works and how it can be analyzed with rigorous methods.

References

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N. Alon and J. H. Spencer. The Probabilistic Method. Wiley, New York, 1992.
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B. Doerr, E. Happ, and C. Klein. A tight bound for the (1 1)-EA on the single source shortest path problem. In IEEE Congress on Evolutionary Computation 2007, pages 1890--1895, Singapore, 2007. IEEE.
[3]
B. Doerr, E. Happ, and C. Klein. Crossover can provably be useful in evolutionary computation. In C. Ryan and M. Keijzer, editors, Genetic and Evolutionary Computation Conference 2008, pages 539--546, Atlanta, USA, 2008. ACM.
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W. Feller. An introduction to probability theory and its applications. Vol. I. Third edition. John Wiley&Sons Inc., New York, 1968.
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J. Scharnow, K. Tinnefeld, and I. Wegener. Fitness landscapes based on sorting and shortest paths problems. In PPSN, volume 2439 of Lecture Notes in Computer Science, pages 54--63. Springer, 2002.
[6]
J. Scharnow, K. Tinnefeld, and I. Wegener. The analysis of evolutionary algorithms on sorting and shortest paths problems. Journal of Mathematical Modelling and Algorithms, pages 349--66, 2004.

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    cover image ACM Conferences
    GECCO '09: Proceedings of the 11th Annual conference on Genetic and evolutionary computation
    July 2009
    2036 pages
    ISBN:9781605583259
    DOI:10.1145/1569901
    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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    New York, NY, United States

    Publication History

    Published: 08 July 2009

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    Author Tags

    1. combinatorial optimization
    2. crossover
    3. evolutionary algorithm

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    GECCO09
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    GECCO09: Genetic and Evolutionary Computation Conference
    July 8 - 12, 2009
    Québec, Montreal, Canada

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