Exemplo n.º 1
0
 def fit(self, model: keras.models.Model, X, y):
     tensor_board = keras.callbacks.TensorBoard(
         log_dir=self.context.tensor_board_dir, histogram_freq=1)
     early_stopping = keras.callbacks.EarlyStopping(monitor='val_loss',
                                                    mode='auto',
                                                    patience=20)
     model.fit(X,
               y,
               batch_size=self.context.batch_size,
               epochs=self.context.epochs,
               validation_split=self.context.validation_split,
               callbacks=[tensor_board, early_stopping])
     return model
Exemplo n.º 2
0
    def train(self,
              full_model: keras.models.Model,
              input_data,
              epochs=100,
              validation_data=None,
              validation_split=None,
              batch_size=32,
              **kwargs):
        """Train the given autoencoder model with the builder's configuration."""

        given_input_shape = input_data.shape[1:]
        if given_input_shape != self.__input_shape:
            raise ValueError(
                f"Input shape {given_input_shape} does not match {self.__input_shape}"
            )

        callbacks = []

        if self.__early_stopping is not None and (
                validation_data is not None or validation_split is not None):
            callbacks.append(
                keras.callbacks.EarlyStopping(patience=self.__early_stopping))

        return full_model.fit(input_data,
                              input_data,
                              epochs=epochs,
                              batch_size=batch_size,
                              callbacks=callbacks,
                              validation_data=validation_data,
                              validation_split=validation_split,
                              shuffle=True,
                              **kwargs)