deep_autoencoder.py 文件源码

def _create_layers(self, input_layer):

        """ Create the encoding and the decoding layers of the deep autoencoder.
        :param input_layer: Input size.
        :return: self
        """

        encode_layer = input_layer
        for i, l in enumerate(self.n_hidden):
            encode_layer = Dense(units=l,
                                 name='encoder_%d' % i,
                                 activation=self.enc_activation[i],
                                 kernel_regularizer=l1_l2(self.l1_reg[i], self.l2_reg[i]),
                                 bias_regularizer=l1_l2(self.l1_reg[i], self.l2_reg[i]))(encode_layer)

        self._decode_layer = encode_layer
        for i, l in enumerate(self.n_hidden[-2:-(len(self.n_hidden)+1):-1] + [K.int_shape(input_layer)[1]]):
            self._decode_layer = Dense(units=l,
                                       name='decoder_%d' % i,
                                       activation=self.dec_activation[i])(self._decode_layer)