title: Qualms regarding the optimality of cumulative path length control in CSA/CMA-evolution strategies.
abstract: Cumulative step-size adaptation (CSA) based on path length control is regarded as a robust alternative to the standard mutative self-adaptation technique in evolution strategies (ES), guaranteeing an almost optimal control of the mutation operator. This paper shows that the underlying basic assumption in CSA--the perpendicularity of expected consecutive steps--does not necessarily guarantee optimal progress performance for (mu/mu(I), lambda) intermediate recombinative ES.
authors.affiliation: Department of Computer Science XI, University of Dortmund, D-44221 Dortmund, Germany. beyer@LS11.cs.uni-dortmund.de
authors.forename: Hans-Georg
authors.initials: HG
authors.lastname: Beyer
authors.forename: Dirk V
authors.initials: DV
authors.lastname: Arnold
mesh_terms: D000465:Algorithms; D005075:Biological Evolution; D003198:Computer Simulation; D008957:Models, Genetic; D015233:Models, Statistical