EVOLUTION STRATEGY
\ɪvəlˈuːʃən stɹˈatəd͡ʒi], \ɪvəlˈuːʃən stɹˈatədʒi], \ɪ_v_ə_l_ˈuː_ʃ_ə_n s_t_ɹ_ˈa_t_ə_dʒ_i]\
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(ES) A kind of evolutionary algorithm where individuals(potential solutions) are encoded by a set of real-valued"object variables" (the individual's "genome"). For eachobject variable an individual also has a "strategy variable"which determines the degree of mutation to be applied to thecorresponding object variable. The strategy variables alsomutate, allowing the rate of mutation of the object variablesto vary.An ES is characterised by the population size, thenumber of offspring produced in each generation and whetherthe new population is selected from parents and offspring oronly from the offspring.ES were invented in 1963 by Ingo Rechenberg, Hans-PaulSchwefel at the Technical University of Berlin (TUB) whilesearching for the optimal shapes of bodies in a flow.
By Denis Howe
Word of the day
Dopamine Acetyltransferase
- An enzyme that catalyzes the of groups from acetyl-CoA to arylamines. They have wide specificity for aromatic amines, particularly serotonin, and can also catalyze acetyl transfer between arylamines without CoA. EC 2.3.1.5.