optimizer_adam needs an acces to the legacy optimizer tf.keras.optimizers.legacy.Adam

[erdeyl]

The error message I get

Error in py_call_impl(callable, dots$args, dots$keywords) :
ValueError: decay is deprecated in the new Keras optimizer, pleasecheck the docstring for valid arguments, or use the legacy optimizer, e.g., tf.keras.optimizers.legacy.Adam.

Thank you

[t-kalinowski]

Hi,

Thanks for reporting. I can reproduce with Tensorflow 2.11.

Until this is fixed on main and released to CRAN, you can temporarily workaround it by
using the Optimizer constructors directly.

E.g., instead of

optimizer_sgd()

use:

optimizers <- keras::keras$optimizers
optimizers$SGD()

The documentation for the new optimizers can be found here: https://www.tensorflow.org/api_docs/python/tf/keras/optimizers

[erdeyl]

Thank you very much!