Source code for nupic.tensorflow.callbacks.boost_strength

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# Numenta Platform for Intelligent Computing (NuPIC)
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from tensorflow import keras

from nupic.tensorflow.layers.k_winners import KWinnersBase


class UpdateBoostStrength(keras.callbacks.Callback):
    """
    Callback used to update KWinner modules boost strength after each epoch.
    """

    def __init__(self):
        super(UpdateBoostStrength, self).__init__()

    def on_epoch_end(self, epoch, logs=None):
        for layer in self.model.layers:
            if isinstance(layer, KWinnersBase):
                layer.update_boost_strength()