Genetic Algorithms in Python
Project description
Big Bird
Big Bird is a (hopefully) useful package designed to facilitate the quick and convenient creation of basic genetic algorithms in python.
Usage
import bigbird
# Big Bird Config
pop_size = 3000
hl_count = 2
layer_counts = [8, 5, 5, 3]
m_r8 = 0.14
step_ratio = 1/3
reinit_r = 0.01
immune = 30
max_generation = 300
population = bigbird.Population(pop_size, hl_count, layer_counts)
for generation in range(max_generation):
for bird in population.birds:
bird_inp = your_input_generation_fn()
bird_out = bird.eval(bird_inp)
decision = output.tolist().index(max(output))
bird.fitness = your_fitness_fn(decision)
champ = sorted(population.birds, key=lambda x: x.fitness)[-1]
champ.save(fname='./hall-of-fame/champ-' + str(generation) + '.json')
population.store(immune)
population.breed()
population.mutate(m_r8, step_ratio, reinit=reinit_r)
population.retrieve()
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