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Add Usage Example to Keras Nadam Optimizer #35984

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merged 10 commits into from Nov 26, 2020
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Add Usage Example to Keras Nadam Optimizer #35984

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Add Usage Example to Keras Nadam Optimizer
jedlimlx Jan 17, 2020
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9 changes: 8 additions & 1 deletion tensorflow/python/keras/optimizer_v2/nadam.py
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Expand Up @@ -33,7 +33,6 @@
@keras_export('keras.optimizers.Nadam')
class Nadam(optimizer_v2.OptimizerV2):
r"""Optimizer that implements the NAdam algorithm.

Much like Adam is essentially RMSprop with momentum, Nadam is Adam with
Nesterov momentum.

Expand All @@ -51,6 +50,14 @@ class Nadam(optimizer_v2.OptimizerV2):
`"clipnorm"` (float) clips gradients by norm; `"clipvalue"` (float) clips
gradients by value.

Usage Example:
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I would really like to see examples like this:
https://github.com/tensorflow/tensorflow/blob/master/tensorflow/python/keras/optimizer_v2/adam.py#L73-L79

>>> opt = tf.keras.optimizers.Nadam(learning_rate=0.2)
>>> var1 = tf.Variable(10.0)
>>> loss = lambda: (var1 ** 2) / 2.0
>>> step_count = opt.minimize(loss, [var1]).numpy()
>>> "{:.1f}".format(var1.numpy())
9.8
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Reference:
- [Dozat, 2015](http://cs229.stanford.edu/proj2015/054_report.pdf).
"""
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