Evolution Strategies#

Experimental evolution-strategy-like algorithms. Seems to use mutations and cross-over. The following parameters can be changed

recombination_ratio

If 1 then will recombine all of the population, if 0 then won’t use any combinations just mutations

(default = 0)

popsize

The number of individuals in the population

(default = 40)

offsprings

The number of offspring from every generation

(default = None)

only_offsprings

If true then only keep offspring, none of the original population.

(default = False)

ranker

Either ‘simple’ or ‘nsga2’

‘ES’#

recombination_ratio: 0
popsize: 40
offsprings: 60
only_offsprings: True
ranker: 'simple'

recombination_ratio:1
popsize: 40
offsprings: 60
only_offsprings: True
ranker: 'simple'

recombination_ratio: 1
popsize: 40
offsprings: 20
only_offsprings: False
ranker: 'simple'

recombination_ratio: 1
popsize: 40
offsprings: None
only_offsprings: False
ranker: 'simple'

recombination_ratio: 0
popsize: 40
offsprings: 20
only_offsprings: False
ranker: 'simple'

recombination_ratio: 0
popsize: 40
offsprings: None
only_offsprings: False
ranker: 'simple'

recombination_ratio: 0
popsize: 40
offsprings: 60
only_offsprings: True
ranker: "nsga2"