我正在尝试将包含20个特征的序列馈送到LSTM网络中,如代码所示。但是我遇到了一个错误,提示我的Input0与LSTM输入不兼容。不确定如何更改我的层结构以适应数据。
def build_model(features, aux1=None, aux2=None):
# create model
features[0] = np.asarray(features[0])
main_input = Input(shape=features[0].shape, dtype='float32', name='main_input')
main_out = LSTM(40, activation='relu')
aux1_input = Input(shape=(len(aux1[0]),), dtype='float32', name='aux1_input')
aux1_out = Dense(len(aux1[0]))(aux1_input)
aux2_input = Input(shape=(len(aux2[0]),), dtype='float32', name='aux2_input')
aux2_out = Dense(len(aux2[0]))(aux2_input)
x = concatenate([aux1_out, main_out, aux2_out])
x = Dense(64, activation='relu')(x)
x = Dropout(0.5)(x)
output = Dense(1, activation='sigmoid', name='main_output')(x)
model = Model(inputs=[aux1_input, aux2_input, main_input], outputs= [output])
return model
特征变量是一个形状为(1456,20)的数组,我有1456天,每天有20个变量。