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 (μ/μIλ) intermediate recombinative ES

covariance matrix adaptation, cumulative step-size adaptation, evolution strategies, mutative self-adaptation, progress rate
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© 2003 Massachusetts Institute of Technology
2003
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