Keras: Typeerror: run() bekam ein unerwartetes Stichwort Argument 'kernel_regularizer'

Question

I tensorflow==1.2.1 und Keras==2.0.6 bin mit einem Modell bauen:

input_num = X_norm_keras[:,2:].shape[1] 
model_keras = Sequential() 
model_keras.add(Dense(10, input_dim=input_num, activation='relu')) 
model_keras.add(Dense(1, activation='linear')) 
kernel_regularizer=regularizers.l2(0.2), optimizer='adam') 
model_keras.compile(loss='mean_squared_error', kernel_regularizer=regularizers.l2(0.2), optimizer='adam') 
model_keras.fit(X_norm_train[:,2:], y_norm_train, batch_size=25, epochs=250) 

bekam aber die folgenden Fehler:

Using TensorFlow backend. 
total data points = (25, 106) 
Epoch 1/250 
--------------------------------------------------------------------------- 
TypeError         Traceback (most recent call last) 
<ipython-input-4-4cbd897903e7> in <module>() 

    102  model_keras.compile(loss='mean_squared_error', kernel_regularizer=regularizers.l2(0.2), optimizer='adam') 
--> 103  model_keras.fit(X_norm_train[:,2:], y_norm_train, batch_size=25, epochs=250) 

/usr/local/lib/python3.4/dist-packages/keras/models.py in fit(self, x, y, batch_size, epochs, verbose, callbacks, validation_split, validation_data, shuffle, class_weight, sample_weight, initial_epoch, **kwargs) 
    861        class_weight=class_weight, 
    862        sample_weight=sample_weight, 
--> 863        initial_epoch=initial_epoch) 
    864 
    865  def evaluate(self, x, y, batch_size=32, verbose=1, 

/usr/local/lib/python3.4/dist-packages/keras/engine/training.py in fit(self, x, y, batch_size, epochs, verbose, callbacks, validation_split, validation_data, shuffle, class_weight, sample_weight, initial_epoch, **kwargs) 
    1428        val_f=val_f, val_ins=val_ins, shuffle=shuffle, 
    1429        callback_metrics=callback_metrics, 
-> 1430        initial_epoch=initial_epoch) 
    1431 
    1432  def evaluate(self, x, y, batch_size=32, verbose=1, sample_weight=None): 

/usr/local/lib/python3.4/dist-packages/keras/engine/training.py in _fit_loop(self, f, ins, out_labels, batch_size, epochs, verbose, callbacks, val_f, val_ins, shuffle, callback_metrics, initial_epoch) 
    1077     batch_logs['size'] = len(batch_ids) 
    1078     callbacks.on_batch_begin(batch_index, batch_logs) 
-> 1079     outs = f(ins_batch) 
    1080     if not isinstance(outs, list): 
    1081      outs = [outs] 

/usr/local/lib/python3.4/dist-packages/keras/backend/tensorflow_backend.py in __call__(self, inputs) 
    2266   updated = session.run(self.outputs + [self.updates_op], 
    2267        feed_dict=feed_dict, 
-> 2268        **self.session_kwargs) 
    2269   return updated[:len(self.outputs)] 
    2270 

TypeError: run() got an unexpected keyword argument 'kernel_regularizer' 

Am Ich vermisse etwas hier? Vielen Dank!

Answer 1

Der Regularizer kernel_regularizer=regularizers.l2(0.2) sollte ein Argument von Dense() sein, nicht model.compile().

Aus der Dokumentation von model.compile():

**kwargs: When using the Theano/CNTK backends, these arguments are passed into K.function. When using the TensorFlow backend, these arguments are passed into tf.Session.run.

Deshalb sollten Sie einen Fehler sehen aus run() kommen.