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A Generalized Markov-Chain Modelling Approach to (1,λ)-ES Linear Optimization

Alexandre Chotard 1, 2 Martin Holeňa 3
1 TAO - Machine Learning and Optimisation
CNRS - Centre National de la Recherche Scientifique : UMR8623, Inria Saclay - Ile de France, UP11 - Université Paris-Sud - Paris 11, LRI - Laboratoire de Recherche en Informatique
Abstract : Several recent publications investigated Markov-chain mod-elling of linear optimization by a (1, λ)-ES, considering both uncon-strained and linearly constrained optimization, and both constant and varying step size. All of them assume normality of the involved random steps, and while this is consistent with a black-box scenario, information on the function to be optimized (e.g. separability) may be exploited by the use of another distribution. The objective of our contribution is to complement previous studies realized with normal steps, and to give suf-ficient conditions on the distribution of the random steps for the success of a constant step-size (1, λ)-ES on the simple problem of a linear func-tion with a linear constraint. The decomposition of a multidimensional distribution into its marginals and the copula combining them is applied to the new distributional assumptions, particular attention being paid to distributions with Archimedean copulas.
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Submitted on : Friday, December 5, 2014 - 3:03:33 PM
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Alexandre Chotard, Martin Holeňa. A Generalized Markov-Chain Modelling Approach to (1,λ)-ES Linear Optimization. Parallel Problem Solving from Nature – PPSN XIII, Sep 2014, Ljubljana, Slovenia. pp.902 - 911, ⟨10.1007/978-3-319-10762-2_89⟩. ⟨hal-01091494⟩

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