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tensorneat-mend/examples/func_fit/xor.py

45 lines
1.4 KiB
Python

from tensorneat.pipeline import Pipeline
from tensorneat.algorithm.neat import NEAT
from tensorneat.genome import DefaultGenome, DefaultNodeGene, DefaultMutation
from tensorneat.problem.func_fit import XOR3d
from tensorneat.common import Act, Agg
if __name__ == "__main__":
pipeline = Pipeline(
algorithm=NEAT(
pop_size=10000,
species_size=20,
compatibility_threshold=2,
survival_threshold=0.01,
genome=DefaultGenome(
num_inputs=3,
num_outputs=1,
init_hidden_layers=(),
node_gene=DefaultNodeGene(
activation_default=Act.tanh,
activation_options=Act.tanh,
aggregation_default=Agg.sum,
aggregation_options=Agg.sum,
),
output_transform=Act.standard_sigmoid, # the activation function for output node
mutation=DefaultMutation(
node_add=0.1,
conn_add=0.1,
node_delete=0,
conn_delete=0,
),
),
),
problem=XOR3d(),
generation_limit=500,
fitness_target=-1e-8,
)
# initialize state
state = pipeline.setup()
# print(state)
# run until terminate
state, best = pipeline.auto_run(state)
# show result
pipeline.show(state, best)