Some experimental observations of (μ/μ,λ)-evolution strategies

Abstract

The multi-recombinant (/spl mu///spl mu/,/spl lambda/)-evolution strategy (ES) is investigated on a set of real-valued test functions empirically, in order to obtain guidelines for choosing a potential type of recombination in the framework of ESs. Applying the multi-parent versions of intermediate recombination (/spl mu///spl mu//sub I/,/spl lambda/) and discrete recombination (/spl mu///spl mu//sub D/,/spl lambda/) to both objective variables and strategy parameters, five ESs with different recombination mechanisms are adopted. It has been found that, in most cases, robust performance can be obtained when discrete recombination is applied simultaneously to an object variable-strategy parameter pair.