model.add(LSTM(input_shape=(1,), input_dim=1, output_dim=15, return_sequences=True)) model.add(LSTM(input_shape=(1,), input_dim=1, output_dim=15, return_sequences=False)) model.add(Dense(1)) model.add(Activation('linear'))
model.add(LSTM(input_shape=(1,), input_dim=1, output_dim=15, return_sequences=True)) model.add(LSTM(input_shape=(1,), input_dim=1, output_dim=15, return_sequences=False)) model.add(Dense(1)) model.add(Activation('linear'))