How can I print the values of Keras tensors?

Question

I am implementing own Keras loss function. How can I access tensor values?

What I\'ve tried

def loss_fn(y_true, y_pred):
    print y_true
         


        

Answer 1

You can't get the values from the tensor symbolic variable directly. Yo need to write a theano function to extract the value. Don't forget to choose theano as backend of Keras.

Check the notebook link to get some basic of theano variables and functions : get tensor value in call function of own layers