Re: [jgap-users] keep population evolving
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From: Kurt W. <kur...@gm...> - 2014-07-23 16:03:48
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Thanks for the information everyone. I may explore these ideas sometime in the future. For now though, what I tried suits my needs. For any individual that had been around for too many generations, I just basically killed it and randomly assigned the values of all of the genes. I'm getting the behavior I want now, and I found multiple solutions which match what I was looking for. Best, Kurt On Wed, Jul 23, 2014 at 8:55 AM, GPMatias <ign...@gm...> wrote: > Hi Kurt, It does not matter if you give them a low fitness value > really, If you want to explore the as much as you can the different > solutions you should use weightroulette as natural selector to get > diversity. And to avoid the population to be stuck in a local minimum > or maximum you may want to add a mutation operator, that would do the > trick ;). > > How is your configuration now?. > > Best regards, Matias. > > On Sun, Jul 20, 2014 at 8:23 PM, Kurt Whittemore > <kur...@gm...> wrote: > > I'm using jgap to evolve some solutions. If a solution has already been > > found, then I assign a really low fitness value because I want to find > the > > maximum number of different "good" solutions. After several generations, > > all of the individuals in my population have the same configuration and > they > > don't change, but they all have a low fitness score. I thought that the > > population would just keep randomly moving around if all of the > individuals > > had a low fitness score, but they just seem to stay the same How should > I > > prevent the population from becoming "locked" like this. > > > > For now, I think I will just kind of have my program manually change a > > chromosome to a random configuration if the lowest fitness value is > > assigned. I'm just curious if there are other solutions though. > > > > Thanks for any help and information you have to offer! > > > > Best, > > Kurt > > > > > ------------------------------------------------------------------------------ > > Want fast and easy access to all the code in your enterprise? Index and > > search up to 200,000 lines of code with a free copy of Black Duck > > Code Sight - the same software that powers the world's largest code > > search on Ohloh, the Black Duck Open Hub! Try it now. > > http://p.sf.net/sfu/bds > > _______________________________________________ > > jgap-users mailing list > > jga...@li... > > https://lists.sourceforge.net/lists/listinfo/jgap-users > > > |