Corrupted Graph in Keras models when they are converted to TensorFlow graph











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I developed two keras models inside two unit tests. I converted the models into tensorflow graph (using https://github.com/amir-abdi/keras_to_tensorflow) to store on disk. When the tests are run separately, the models are loaded fine and work as they are expected to do. But when I run the test through unittest discover, I got the following error running the second test:



Tensor dense_2_target:0, specified in either feed_devices or fetch_devices was not found in the Graph.



I am wondering if it is a cause of any open resources or dependencies between the generated graphs? Any help is appreciated.



Here is the source code for the two models.



Model 1:



model = Sequential(name="Regressor")
model.add(Dense(10, input_dim=2, activation='relu'))
model.add(Dense(10, activation='relu'))
model.add(Dense(1, activation=None))
model.compile(loss='mean_absolute_error', optimizer='adam')
model.fit(X, y, verbose=0)
convert_to_tensorflow_graph() # as described in https://github.com/amir-abdi/keras_to_tensorflow.


Model 2:



model = Sequential(name="classifier")
model.add(Dense(10, input_dim=4, activation='relu'))
model.add(Dense(1, activation='sigmoid'))
model.compile(loss='binary_crossentropy', optimizer='adam')
model.fit(X, y, verbose=0)
convert_to_tensorflow_graph()


As you see, the structure of the models are not the same.










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    up vote
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    down vote

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    I developed two keras models inside two unit tests. I converted the models into tensorflow graph (using https://github.com/amir-abdi/keras_to_tensorflow) to store on disk. When the tests are run separately, the models are loaded fine and work as they are expected to do. But when I run the test through unittest discover, I got the following error running the second test:



    Tensor dense_2_target:0, specified in either feed_devices or fetch_devices was not found in the Graph.



    I am wondering if it is a cause of any open resources or dependencies between the generated graphs? Any help is appreciated.



    Here is the source code for the two models.



    Model 1:



    model = Sequential(name="Regressor")
    model.add(Dense(10, input_dim=2, activation='relu'))
    model.add(Dense(10, activation='relu'))
    model.add(Dense(1, activation=None))
    model.compile(loss='mean_absolute_error', optimizer='adam')
    model.fit(X, y, verbose=0)
    convert_to_tensorflow_graph() # as described in https://github.com/amir-abdi/keras_to_tensorflow.


    Model 2:



    model = Sequential(name="classifier")
    model.add(Dense(10, input_dim=4, activation='relu'))
    model.add(Dense(1, activation='sigmoid'))
    model.compile(loss='binary_crossentropy', optimizer='adam')
    model.fit(X, y, verbose=0)
    convert_to_tensorflow_graph()


    As you see, the structure of the models are not the same.










    share|improve this question


























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I developed two keras models inside two unit tests. I converted the models into tensorflow graph (using https://github.com/amir-abdi/keras_to_tensorflow) to store on disk. When the tests are run separately, the models are loaded fine and work as they are expected to do. But when I run the test through unittest discover, I got the following error running the second test:



      Tensor dense_2_target:0, specified in either feed_devices or fetch_devices was not found in the Graph.



      I am wondering if it is a cause of any open resources or dependencies between the generated graphs? Any help is appreciated.



      Here is the source code for the two models.



      Model 1:



      model = Sequential(name="Regressor")
      model.add(Dense(10, input_dim=2, activation='relu'))
      model.add(Dense(10, activation='relu'))
      model.add(Dense(1, activation=None))
      model.compile(loss='mean_absolute_error', optimizer='adam')
      model.fit(X, y, verbose=0)
      convert_to_tensorflow_graph() # as described in https://github.com/amir-abdi/keras_to_tensorflow.


      Model 2:



      model = Sequential(name="classifier")
      model.add(Dense(10, input_dim=4, activation='relu'))
      model.add(Dense(1, activation='sigmoid'))
      model.compile(loss='binary_crossentropy', optimizer='adam')
      model.fit(X, y, verbose=0)
      convert_to_tensorflow_graph()


      As you see, the structure of the models are not the same.










      share|improve this question















      I developed two keras models inside two unit tests. I converted the models into tensorflow graph (using https://github.com/amir-abdi/keras_to_tensorflow) to store on disk. When the tests are run separately, the models are loaded fine and work as they are expected to do. But when I run the test through unittest discover, I got the following error running the second test:



      Tensor dense_2_target:0, specified in either feed_devices or fetch_devices was not found in the Graph.



      I am wondering if it is a cause of any open resources or dependencies between the generated graphs? Any help is appreciated.



      Here is the source code for the two models.



      Model 1:



      model = Sequential(name="Regressor")
      model.add(Dense(10, input_dim=2, activation='relu'))
      model.add(Dense(10, activation='relu'))
      model.add(Dense(1, activation=None))
      model.compile(loss='mean_absolute_error', optimizer='adam')
      model.fit(X, y, verbose=0)
      convert_to_tensorflow_graph() # as described in https://github.com/amir-abdi/keras_to_tensorflow.


      Model 2:



      model = Sequential(name="classifier")
      model.add(Dense(10, input_dim=4, activation='relu'))
      model.add(Dense(1, activation='sigmoid'))
      model.compile(loss='binary_crossentropy', optimizer='adam')
      model.fit(X, y, verbose=0)
      convert_to_tensorflow_graph()


      As you see, the structure of the models are not the same.







      python tensorflow machine-learning keras deep-learning






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      edited Nov 20 at 15:59

























      asked Nov 19 at 18:16









      mehdi

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