Keras et TensorBoard - AttributeError: l'objet 'Sequential' n'a pas d'attribut '_get_distribution_strategy'

Question

J'utilise des keras et j'essaie de tracer les journaux en utilisant tensorboard. Ci-dessous, vous pouvez découvrir l'erreur que j'obtiens ainsi que la liste des versions de packages que j'utilise. Je ne peux pas comprendre que cela me donne l'erreur de "Sequential" object has no attribute "_get_distribution_strategy".

Paquet: Keras 2.3.1 Keras-Applications 1.0.8 Keras-Preprocessing 1.1.0 tensorboard 2.1.0 tensorflow 2.1.0 tensorflow-estimator 2.1.0

MODÈLE:

model = Sequential()
    model.add(Embedding(MAX_NB_WORDS, EMBEDDING_DIM, input_shape=(X.shape[1],)))
    model.add(GlobalAveragePooling1D())
    #model.add(Dense(10, activation='sigmoid'))
    model.add(Dense(len(CATEGORIES), activation='softmax'))
    model.summary()
    #opt = 'adam'       # Here we can choose a certain optimizer for our model
    opt = 'rmsprop'
    model.compile(loss='categorical_crossentropy', optimizer=opt, metrics=['accuracy'])                  # Here we choose the loss function, input our optimizer choice, and set our metrics.

    # Create a TensorBoard instance with the path to the logs directory
    tensorboard = TensorBoard(log_dir='logs/{}'.format(time()),
                    histogram_freq = 1,
                    embeddings_freq = 1,
                    embeddings_data = X)

    history = model.fit(X, Y, epochs=epochs, batch_size=batch_size, validation_split=0.1, callbacks=[tensorboard])

ERREUR:

C:\Users\Bruno\AppData\Local\Programs\Python\Python37\lib\site-packages\keras\callbacks\tensorboard_v2.py:102: UserWarning: The TensorBoard callback does not support embeddings display when using TensorFlow 2.0. Embeddings-related arguments are ignored.
  warnings.warn('The TensorBoard callback does not support '
C:\Users\Bruno\AppData\Local\Programs\Python\Python37\lib\site-packages\tensorflow_core\python\framework\indexed_slices.py:433: UserWarning: Converting sparse IndexedSlices to a dense Tensor of unknown shape. This may consume a large amount of memory.
  "Converting sparse IndexedSlices to a dense Tensor of unknown shape. "
Train on 1123 samples, validate on 125 samples
Traceback (most recent call last):
  File ".\NN_Training.py", line 128, in <module>
    history = model.fit(X, Y, epochs=epochs, batch_size=batch_size, validation_split=0.1, callbacks=[tensorboard])    # Feed in the train
set for X and y and run the model!!!
  File "C:\Users\Bruno\AppData\Local\Programs\Python\Python37\lib\site-packages\keras\engine\training.py", line 1239, in fit
    validation_freq=validation_freq)
  File "C:\Users\Bruno\AppData\Local\Programs\Python\Python37\lib\site-packages\keras\engine\training_arrays.py", line 119, in fit_loop
    callbacks.set_model(callback_model)
  File "C:\Users\Bruno\AppData\Local\Programs\Python\Python37\lib\site-packages\keras\callbacks\callbacks.py", line 68, in set_model
    callback.set_model(model)
  File "C:\Users\Bruno\AppData\Local\Programs\Python\Python37\lib\site-packages\keras\callbacks\tensorboard_v2.py", line 116, in set_model
    super(TensorBoard, self).set_model(model)
  File "C:\Users\Bruno\AppData\Local\Programs\Python\Python37\lib\site-packages\tensorflow_core\python\keras\callbacks.py", line 1532, in
set_model
    self.log_dir, self.model._get_distribution_strategy())  # pylint: disable=protected-access
AttributeError: 'Sequential' object has no attribute '_get_distribution_strategy'```

Answer 1

Il semble que votre environnement python) mélange les importations de keras et tensorflow.keras. Essayez d'utiliser Sequential module comme ceci:

model = tensorflow.keras.Sequential()

Ou changez vos importations en quelque chose comme

import tensorflow
layers = tensorflow.keras.layers
BatchNormalization = tensorflow.keras.layers.BatchNormalization
Conv2D = tensorflow.keras.layers.Conv2D
Flatten = tensorflow.keras.layers.Flatten
TensorBoard = tensorflow.keras.callbacks.TensorBoard
ModelCheckpoint = tensorflow.keras.callbacks.ModelCheckpoint

...etc