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tensorneat-mend/examples/xor.py
2023-07-24 19:25:02 +08:00

37 lines
982 B
Python

import jax
import numpy as np
from config import Config, BasicConfig, NeatConfig
from pipeline import Pipeline
from algorithm import NEAT, NormalGene, NormalGeneConfig
xor_inputs = np.array([[0, 0], [0, 1], [1, 0], [1, 1]], dtype=np.float32)
xor_outputs = np.array([[0], [1], [1], [0]], dtype=np.float32)
def evaluate(forward_func):
"""
:param forward_func: (4: batch, 2: input size) -> (pop_size, 4: batch, 1: output size)
:return:
"""
outs = forward_func(xor_inputs)
outs = jax.device_get(outs)
fitnesses = 4 - np.sum((outs - xor_outputs) ** 2, axis=(1, 2))
return fitnesses
if __name__ == '__main__':
config = Config(
basic=BasicConfig(
fitness_target=3.99999,
pop_size=10000
),
neat=NeatConfig(
maximum_nodes=50,
maximum_conns=100,
)
)
algorithm = NEAT(config, NormalGene)
pipeline = Pipeline(config, algorithm)
pipeline.auto_run(evaluate)