All Questions
Tagged with pythontensorflow
4,658 questions
666votes
28answers
494kviews
How to save/restore a model after training?
After you train a model in Tensorflow: How do you save the trained model? How do you later restore this saved model?
373votes
16answers
290kviews
How to prevent tensorflow from allocating the totality of a GPU memory?
I work in an environment in which computational resources are shared, i.e., we have a few server machines equipped with a few Nvidia Titan X GPUs each. For small to moderate size models, the 12 GB of ...
780votes
11answers
698kviews
Your CPU supports instructions that this TensorFlow binary was not compiled to use: AVX AVX2
I have recently installed tensorflow (Windows CPU version) and received the following message: Successfully installed tensorflow-1.4.0 tensorflow-tensorboard-0.4.0rc2 Then when I tried to run import ...
723votes
61answers
999kviews
TensorFlow not found using pip
I'm trying to install TensorFlow using pip: $ pip install tensorflow --user Collecting tensorflow Could not find a version that satisfies the requirement tensorflow (from versions: ) No matching ...
234votes
13answers
326kviews
Keras, How to get the output of each layer?
I have trained a binary classification model with CNN, and here is my code model = Sequential() model.add(Convolution2D(nb_filters, kernel_size[0], kernel_size[1], border_mode=...
316votes
25answers
652kviews
How to print the value of a Tensor object in TensorFlow?
I have been using the introductory example of matrix multiplication in TensorFlow. matrix1 = tf.constant([[3., 3.]]) matrix2 = tf.constant([[2.],[2.]]) product = tf.matmul(matrix1, matrix2) When I ...
346votes
13answers
1.0mviews
Convert a tensor to numpy array in Tensorflow?
How to convert a tensor into a numpy array when using Tensorflow with Python bindings?
360votes
21answers
350kviews
Disable Tensorflow debugging information
By debugging information I mean what TensorFlow shows in my terminal about loaded libraries and found devices etc. not Python errors. I tensorflow/stream_executor/dso_loader.cc:105] successfully ...
486votes
9answers
263kviews
What are logits? What is the difference between softmax and softmax_cross_entropy_with_logits?
In the tensorflow API docs they use a keyword called logits. What is it? A lot of methods are written like: tf.nn.softmax(logits, name=None) If logits is just a generic Tensor input, why is it named ...
16votes
3answers
6kviews
Keras not training on entire dataset
So I've been following Google's official tensorflow guide and trying to build a simple neural network using Keras. But when it comes to training the model, it does not use the entire dataset (with ...
11votes
2answers
7kviews
Keras Dense layer's input is not flattened
This is my test code: from keras import layers input1 = layers.Input((2,3)) output = layers.Dense(4)(input1) print(output) The output is: <tf.Tensor 'dense_2/add:0' shape=(?, 2, 4) dtype=float32&...
48votes
3answers
82kviews
Make a custom loss function in keras
Hi I have been trying to make a custom loss function in keras for dice_error_coefficient. It has its implementations in tensorboard and I tried using the same function in keras with tensorflow but it ...
166votes
19answers
488kviews
Tensorflow - ValueError: Failed to convert a NumPy array to a Tensor (Unsupported object type float)
Continuation from previous question: Tensorflow - TypeError: 'int' object is not iterable My training data is a list of lists each comprised of 1000 floats. For example, x_train[0] = [0.0, 0.0,...
454votes
32answers
901kviews
How to tell if tensorflow is using gpu acceleration from inside python shell?
I have installed tensorflow in my ubuntu 16.04 using the second answer here with ubuntu's builtin apt cuda installation. Now my question is how can I test if tensorflow is really using gpu? I have a ...
243votes
16answers
455kviews
How to get current available GPUs in tensorflow?
I have a plan to use distributed TensorFlow, and I saw TensorFlow can use GPUs for training and testing. In a cluster environment, each machine could have 0 or 1 or more GPUs, and I want to run my ...