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January 3, 2019 22:01
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if save_model_flag: | |
# Add optimization method, loss function and optimization value | |
model.compile(loss='categorical_crossentropy', | |
optimizer='adam', metrics=['accuracy']) | |
# "Fit the model" (train model), using training data (80% of datset) | |
model.fit(x_train, y_train, batch_size=batch_size, | |
epochs=epochs, validation_data=(x_test, y_test)) | |
# Save model to json file | |
model_json = model.to_json() | |
with open(model_name + ".json", "w") as json_file: | |
json_file.write(model_json) | |
# serialize weights to HDF5 | |
model.save_weights(model_name + ".h5") | |
else: | |
# load json and create model | |
json_file = open(model_name + '.json', 'r') | |
loaded_model_json = json_file.read() | |
json_file.close() | |
model = model_from_json(loaded_model_json) | |
# load weights into new model | |
model.load_weights(model_name + ".h5") | |
# evaluate loaded model on test data | |
model.compile(loss='categorical_crossentropy', | |
optimizer='adam', metrics=['accuracy']) | |
# Evaluate the trained model, using the test data (20% of the dataset) | |
score = model.evaluate(x_test, y_test, batch_size=batch_size) |
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