step function of SState
Piet Kerckhove
Piet.Kerckhove at rug.ac.be
Thu Jul 11 11:37:48 EDT 2002
This is indeed what happens, this makes the steadystate algortihm fast but not
very robust when facing local optima (due to a lack of diversity). It might be
better using IncrementalGA or SimpleGA.
Citeren Sanne Houweling <sanne at blade030.cs.vu.nl>:
> Dear all,
>
> I am confused about the step() function of the SStateGA, in
> particular the selection.
>
> The comment says: "If a genome in the tmp population is worse
> than one in the main population, the genome in the main
> population will be replaced regardless of its better score."
>
> But what happens is adding the members of tmp_pop
> (containing offspring) to main_pop (containing preceeding
> pop), evaluating this union and then removing the worst
> tmp_pop_size individuals.
>
> Regards, Sanne.
>
>
> ** Sanne Houweling - (+31)207705488 - sanne at cs.vu.nl **
> ** Faculty of Exact Sciences - Vrije Universiteit Amsterdam**
>
>
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piet.kerckhove at rug.ac.be
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