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Results tagged with tensorflow
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user 54612
TensorFlow is an open source library for machine learning and machine intelligence. TensorFlow uses data flow graphs with tensors flowing along edges. For details, see https://www.tensorflow.org. TensorFlow is released under an Apache 2.0 License.
0
votes
Mixed precision with a keras data generator
Found it! It's a matter of using the cast() method in the rescaling function. eg:
def rescale(img, label):
sc_img=(tf.cast(img, tf.float16) / 127.5)-1
return sc_img, label
0
votes
1
answer
80
views
Mixed precision with a keras data generator
My GPU is RTX so I would also like to use mixed precision training in Tensorflow 2.5.
How do I cast the output images of the generator to float16? I've tried the .cast() method with no success. …
0
votes
Keras early stopping to a target
Comment above to SO post is spot on. A custom callback, as provided in that post, is the solution and the term 'baseline' is not meant to be interpreted as a threshold.
1
vote
1
answer
33
views
Optimizers, loss functions and weights: when do they matter?
I'm training an FCN in TF/Keras with sigmoid focal loss (from TF addons) and saving weights in checkpoints. I will need the inference to be done on another computer that, for the moment, does not hav …
0
votes
0
answers
29
views
Using images with 5 or more channel in a tf.data pipeline
I have a data generator used to train FCNs (eg Unets) that uses tf.data. The image parser followed by the creation of the tf.data dataset for the training images looks like:
def parse_image(img_ …
3
votes
1
answer
320
views