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- CMA-ES abstract "CMA-ES stands for Covariance Matrix Adaptation Evolution Strategy. Evolution strategies (ES) are stochastic, derivative-free methods for numerical optimization of non-linear or non-convex continuous optimization problems. They belong to the class of evolutionary algorithms and evolutionary computation. An evolutionary algorithm is broadly based on the principle of biological evolution, namely the repeated interplay of variation (via recombination and mutation) and selection: in each generation (iteration) new individuals (candidate solutions, denoted as ) are generated by variation, usually in a stochastic way, of the current parental individuals. Then, some individuals are selected to become the parents in the next generation based on their fitness or objective function value . Like this, over the generation sequence, individuals with better and better -values are generated.In an evolution strategy, new candidate solutions are sampled according to a multivariate normal distribution in the . Recombination amounts to selecting a new mean value for the distribution. Mutation amounts to adding a random vector, a perturbation with zero mean. Pairwise dependencies between the variables in the distribution are represented by a covariance matrix. The covariance matrix adaptation (CMA) is a method to update the covariance matrix of this distribution. This is particularly useful, if the function is ill-conditioned.Adaptation of the covariance matrix amounts to learning a second order model of the underlying objective function similar to the approximation of the inverse Hessian matrix in the Quasi-Newton method in classical optimization. In contrast to most classical methods, fewer assumptions on the nature of the underlying objective function are made. Only the ranking between candidate solutions is exploited for learning the sample distribution and neither derivatives nor even the function values themselves are required by the method.".
- CMA-ES thumbnail Concept_of_directional_optimization_in_CMA-ES_algorithm.png?width=300.
- CMA-ES wikiPageExternalLink evco_11_1_1_0.pdf.
- CMA-ES wikiPageExternalLink cmaartic.pdf.
- CMA-ES wikiPageExternalLink cmaes_inmatlab.html.
- CMA-ES wikiPageExternalLink cmaesintro.html.
- CMA-ES wikiPageExternalLink cmatutorial.pdf.
- CMA-ES wikiPageExternalLink ppsn2004hansenkern.pdf.
- CMA-ES wikiPageExternalLink evco.2007.15.1.1.
- CMA-ES wikiPageExternalLink 1.
- CMA-ES wikiPageExternalLink 1.
- CMA-ES wikiPageExternalLink 2.
- CMA-ES wikiPageID "8143131".
- CMA-ES wikiPageRevisionID "605889836".
- CMA-ES hasPhotoCollection CMA-ES.
- CMA-ES subject Category:Evolutionary_algorithms.
- CMA-ES subject Category:Optimization_algorithms_and_methods.
- CMA-ES subject Category:Stochastic_optimization.
- CMA-ES type Abstraction100002137.
- CMA-ES type Act100030358.
- CMA-ES type Activity100407535.
- CMA-ES type Algorithm105847438.
- CMA-ES type Event100029378.
- CMA-ES type EvolutionaryAlgorithms.
- CMA-ES type OptimizationAlgorithmsAndMethods.
- CMA-ES type Procedure101023820.
- CMA-ES type PsychologicalFeature100023100.
- CMA-ES type Rule105846932.
- CMA-ES type YagoPermanentlyLocatedEntity.
- CMA-ES comment "CMA-ES stands for Covariance Matrix Adaptation Evolution Strategy. Evolution strategies (ES) are stochastic, derivative-free methods for numerical optimization of non-linear or non-convex continuous optimization problems. They belong to the class of evolutionary algorithms and evolutionary computation.".
- CMA-ES label "CMA-ES".
- CMA-ES label "CMA-ES".
- CMA-ES sameAs CMA-ES.
- CMA-ES sameAs m.026t543.
- CMA-ES sameAs Q505588.
- CMA-ES sameAs Q505588.
- CMA-ES sameAs CMA-ES.
- CMA-ES wasDerivedFrom CMA-ES?oldid=605889836.
- CMA-ES depiction Concept_of_directional_optimization_in_CMA-ES_algorithm.png.
- CMA-ES isPrimaryTopicOf CMA-ES.
