keras tuner
pip install -U keras-tunerkeras tuner
pip install -U keras-tunerkeras tuner
from tensorflow import keras
from tensorflow.keras import layers
from kerastuner.tuners import RandomSearch
def build_model_function(hp):
model = keras.Sequential()
model.add(layers.Dense(units=hp.Int('units', min_value=32,
max_value=512, step=32), activation='relu'))
model.add(layers.Dense(10, activation='softmax'))
model.compile(optimizer=keras.optimizers.Adam(
hp.Choice('learning_rate',values=[1e-2, 1e-3, 1e-4])),
loss='sparse_categorical_crossentropy',
metrics=['accuracy'])
return model
tuner = RandomSearch(
build_model_function,
objective='val_accuracy',
max_trials=5,
executions_per_trial=3,
directory='my_dir',
project_name='helloworld')
# You can print a summary of the search space:
tuner.search_space_summary()
# The call to search has the same signature as model.fit()
tuner.search(x, y, epochs=5, validation_data=(val_x, val_y))
# When search is over, you can retrieve the best model(s):
models = tuner.get_best_models(num_models=2)
# Or print a summary of the results:
tuner.results_summary()Copyright © 2021 Codeinu
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