model_zoo.py 文件源码

def create(self):

        assert self._config.textual_embedding_dim == 0, \
                'Embedding cannot be learnt but must be fixed'

        language_forward = Sequential()
        language_forward.add(self._config.recurrent_encoder(
            self._config.hidden_state_dim, return_sequences=False,
            input_shape=(self._config.max_input_time_steps, self._config.input_dim)))
        self.language_forward = language_forward

        language_backward = Sequential()
        language_backward.add(self._config.recurrent_encoder(
            self._config.hidden_state_dim, return_sequences=False,
            go_backwards=True,
            input_shape=(self._config.max_input_time_steps, self._config.input_dim)))
        self.language_backward = language_backward

        self.add(Merge([language_forward, language_backward]))
        self.deep_mlp()
        self.add(Dense(self._config.output_dim))
        self.add(Activation('softmax'))