InvalidateFitnessOp with Breeder Tree?

[Jeannief]

Hi Christian,

Does the InvalidateFitnessOp work with a breeder tree? I have tried putting it in after the StatsCalculateOp but it does not seem to work: on start-up the system reports that

a lot of standard startup parameters are not registered. The operator functions fine without a breeder tree?

Also, am I correct in saying that in order to implement elitism we need to use a breeder tree with either a Generational or SteadyStateOp? The param ec.elite.keepsize is not registered otherwise? Ideally I would like to have elitism and fitness invalidation without using a breeder tree.

thanks in advance,

jeannie

[Christian Gagné]

Hi Jeannie,

On 2013-04-18, at 5:56 AM, Jeannief <jeanniemf...@gmail.com> wrote:

> Does the InvalidateFitnessOp work with a breeder tree? I have tried putting it in after the StatsCalculateOp but it does not seem to work: on start-up the system reports that
> a lot of standard startup parameters are not registered. The operator functions fine without a breeder tree?

InvalidateFitnessOp should work within a breeder tree, as it inherits from BreederOp. It should also work outside a breeder tree, as a usual operator in the Bootstrap and Mainloop operators sets.

> Also, am I correct in saying that in order to implement elitism we need to use a breeder tree with either a Generational or SteadyStateOp? The param ec.elite.keepsize is not registered otherwise? Ideally I would like to have elitism and fitness invalidation without using a breeder tree.

That's correct, elitism is implemented only using breeder trees, for example by using GenerationalOp or SteadyStateOp.

Best,

Christian


--
Christian Gagné
http://vision.gel.ulaval.ca/~cgagne