def create_LSTM_model(): # instantiate the model model = Sequential() model.add(Input(shape=(X_train.shape[1], X_train.shape[2]))) model.add(Reshape((X_train.shape[1], 1, X_train.shape[2], 1))) # cnn1d Layers model.add(ConvLSTM2D(filters=64, kernel_size=(1,3), activation='relu', padding='same', return_sequences=True)) model.add(Flatten()) model.add(Dropout(0.5)) # 添加lstm层 model.add(LSTM(64, activation = 'relu', return_sequences=True)) model.add(Dropout(0.5)) #添加注意力层 model.add(LSTM(64, activation = 'relu', return_sequences=False)) # 添加dropout model.add(Dropout(0.5)) model.add(Dense(128)) # 输出层 model.add(Dense(1, name='Output')) # 编译模型 model.compile(optimizer='adam', loss='mse', metrics=['mae']) return model # lstm network model = create_LSTM_model() # summary print(model.summary())修改该代码,解决ValueError: Input 0 of layer "lstm_22" is incompatible with the layer: expected ndim=3, found ndim=2. Full shape received: (None, 640)问题

时间: 2023-11-29 12:04:21 浏览: 37
根据错误信息,我们可以看出 "lstm_22" 层的输入维度(ndim)期望是3,但是实际上却是2。这个问题通常是由于输入数据形状(shape)不正确导致的。 在这个问题的代码中,我们可以看到在模型的第一层中添加了一个 Reshape 层,将输入数据的形状更改为 (batch_size, time_steps, features, 1, 1)。这是为了使其可以与 ConvLSTM2D 层兼容。 然而,在后续的层中,我们需要将数据形状转换回 (batch_size, time_steps, features)。因此,我们需要在 Reshape 层之后添加一个 Reshape 层,将数据形状从 (batch_size, time_steps, features, 1, 1) 转换为 (batch_size, time_steps, features)。 下面是修改过后的代码: ```python def create_LSTM_model(): # instantiate the model model = Sequential() # add input layer model.add(Input(shape=(X_train.shape[1], X_train.shape[2]))) # add reshape layer model.add(Reshape((X_train.shape[1], 1, X_train.shape[2], 1))) # cnn1d Layers model.add(ConvLSTM2D(filters=64, kernel_size=(1,3), activation='relu', padding='same', return_sequences=True)) model.add(Flatten()) model.add(Dropout(0.5)) # add reshape layer model.add(Reshape((X_train.shape[1], 64))) # add lstm layer model.add(LSTM(64, activation='relu', return_sequences=True)) model.add(Dropout(0.5)) # add attention layer model.add(LSTM(64, activation='relu', return_sequences=False)) # add dropout layer model.add(Dropout(0.5)) # add dense layers model.add(Dense(128)) model.add(Dense(1, name='Output')) # compile the model model.compile(optimizer='adam', loss='mse', metrics=['mae']) return model # lstm network model model = create_LSTM_model() # summary print(model.summary()) ``` 在上面的修改后的代码中,我们在 Reshape 层之后添加了一个新的 Reshape 层,将数据形状转换回 (batch_size, time_steps, features)。这样可以确保后续的 LSTM 层能够正确处理输入数据。 另外,我们还将 LSTM 层的 return_sequences 参数设置为 True,以确保输出的形状与输入形状相同。这样可以使得后续的层能够正确地处理输出数据。

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def create_LSTM_model(X_train,n_steps,n_length, n_features): # instantiate the model model = Sequential() model.add(Input(shape=(X_train.shape[1], X_train.shape[2]))) X_train = X_train.reshape((X_train.shape[0], n_steps, 1, n_length, n_features)) model.add(ConvLSTM2D(filters=64, kernel_size=(1,3), activation='relu', input_shape=(n_steps, 1, n_length, n_features))) model.add(Flatten()) # cnn1d Layers # 添加lstm层 model.add(LSTM(64, activation = 'relu', return_sequences=True)) model.add(Dropout(0.5)) #添加注意力层 model.add(LSTM(64, activation = 'relu', return_sequences=False)) # 添加dropout model.add(Dropout(0.5)) model.add(Dense(128)) # 输出层 model.add(Dense(1, name='Output')) # 编译模型 model.compile(optimizer='adam', loss='mse', metrics=['mae']) return model # lstm network model = create_LSTM_model(X_train,n_steps,n_length, n_features) # summary print(model.summary())修改该代码,解决ValueError Traceback (most recent call last) <ipython-input-54-536a68c200e5> in <module> 52 return model 53 # lstm network ---> 54 model = create_LSTM_model(X_train,n_steps,n_length, n_features) 55 # summary 56 print(model.summary()) <ipython-input-54-536a68c200e5> in create_LSTM_model(X_train, n_steps, n_length, n_features) 22 X_train = X_train.reshape((X_train.shape[0], n_steps, 1, n_length, n_features)) 23 ---> 24 model.add(ConvLSTM2D(filters=64, kernel_size=(1,3), activation='relu', 25 input_shape=(n_steps, 1, n_length, n_features))) 26 model.add(Flatten()) ~\anaconda3\lib\site-packages\tensorflow\python\trackable\base.py in _method_wrapper(self, *args, **kwargs) 203 self._self_setattr_tracking = False # pylint: disable=protected-access 204 try: --> 205 result = method(self, *args, **kwargs) 206 finally: 207 self._self_setattr_tracking = previous_value # pylint: disable=protected-access ~\anaconda3\lib\site-packages\keras\utils\traceback_utils.py in error_handler(*args, **kwargs) 68 # To get the full stack trace, call: 69 # tf.debugging.disable_traceback_filtering() ---> 70 raise e.with_traceback(filtered_tb) from None 71 finally: 72 del filtered_tb ~\anaconda3\lib\site-packages\keras\engine\input_spec.py in assert_input_compatibility(input_spec, inputs, layer_name) 233 ndim = shape.rank 234 if ndim != spec.ndim: --> 235 raise ValueError( 236 f'Input {input_index} of layer "{layer_name}" ' 237 "is incompatible with the layer: " ValueError: Input 0 of layer "conv_lstm2d_12" is incompatible with the layer: expected ndim=5, found ndim=3. Full shape received: (None, 10, 5)错误

Create a model def create_LSTM_model(X_train,n_steps,n_length, n_features): # instantiate the model model = Sequential() model.add(Input(shape=(X_train.shape[1], X_train.shape[2]))) model.add(Reshape((n_steps, 1, n_length, n_features))) model.add(ConvLSTM2D(filters=64, kernel_size=(1,3), activation='relu', input_shape=(n_steps, 1, n_length, n_features))) model.add(Flatten()) # cnn1d Layers # 添加lstm层 model.add(LSTM(64, activation = 'relu', return_sequences=True)) model.add(Dropout(0.5)) #添加注意力层 model.add(LSTM(64, activation = 'relu', return_sequences=False)) # 添加dropout model.add(Dropout(0.5)) model.add(Dense(128)) # 输出层 model.add(Dense(1, name='Output')) # 编译模型 model.compile(optimizer='adam', loss='mse', metrics=['mae']) return model # lstm network model = create_LSTM_model(X_train,n_steps,n_length, n_features) # summary print(model.summary())修改该代码,解决ValueError Traceback (most recent call last) <ipython-input-56-6c1ed99fa3ed> in <module> 53 # lstm network 54 ---> 55 model = create_LSTM_model(X_train,n_steps,n_length, n_features) 56 # summary 57 print(model.summary()) <ipython-input-56-6c1ed99fa3ed> in create_LSTM_model(X_train, n_steps, n_length, n_features) 17 model = Sequential() 18 model.add(Input(shape=(X_train.shape[1], X_train.shape[2]))) ---> 19 model.add(Reshape((n_steps, 1, n_length, n_features))) 20 21 ~\anaconda3\lib\site-packages\tensorflow\python\trackable\base.py in _method_wrapper(self, *args, **kwargs) 203 self._self_setattr_tracking = False # pylint: disable=protected-access 204 try: --> 205 result = method(self, *args, **kwargs) 206 finally: 207 self._self_setattr_tracking = previous_value # pylint: disable=protected-access ~\anaconda3\lib\site-packages\keras\utils\traceback_utils.py in error_handler(*args, **kwargs) 68 # To get the full stack trace, call: 69 # tf.debugging.disable_traceback_filtering() ---> 70 raise e.with_traceback(filtered_tb) from None 71 finally: 72 del filtered_tb ~\anaconda3\lib\site-packages\keras\layers\reshaping\reshape.py in _fix_unknown_dimension(self, input_shape, output_shape) 116 output_shape[unknown] = original // known 117 elif original != known: --> 118 raise ValueError(msg) 119 return output_shape 120 ValueError: Exception encountered when calling layer "reshape_5" (type Reshape). total size of new array must be unchanged, input_shape = [10, 1], output_shape = [10, 1, 1, 5] Call arguments received by layer "reshape_5" (type Reshape): • inputs=tf.Tensor(shape=(None, 10, 1), dtype=float32)问题

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