source: framspy/evolalg/numerical_example/numerical_islands_example.py @ 1190

Last change on this file since 1190 was 1190, checked in by Maciej Komosinski, 15 months ago

Added the "evolalg" module for evolutionary optimization

File size: 848 bytes
Line 
1import numpy as np
2
3from ..base.experiment_islands_model_abc import ExperimentIslands
4from ..structures.hall_of_fame import HallOfFame
5
6
7class ExperimentNumericalIslands(ExperimentIslands):
8    def __init__(self, hof_size, popsize, number_of_populations, migration_interval, save_only_best) -> None:
9        ExperimentIslands.__init__(self,popsize=popsize,
10                                hof_size=hof_size,
11                                number_of_populations=number_of_populations,
12                                migration_interval=migration_interval,
13                                save_only_best=save_only_best)
14
15    def mutate(self, gen1):
16        return gen1 + np.random.randint(-10, 10, len(gen1))
17
18    def cross_over(self, gen1, gen2):
19        return gen1
20
21    def evaluate(self, genotype):
22        return 1/sum([x*x for x in genotype])
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