tf.keras.backend.zeros_like

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Instantiates an all-zeros variable of the same shape as another tensor.

Arguments
x Keras variable or Keras tensor.
dtype dtype of returned Keras variable. None uses the dtype of x.
name name for the variable to create.
Returns
A Keras variable with the shape of x filled with zeros.

Example:

from tensorflow.keras import backend as K
kvar = K.variable(np.random.random((2,3)))
kvar_zeros = K.zeros_like(kvar)
K.eval(kvar_zeros)
# array([[ 0.,  0.,  0.], [ 0.,  0.,  0.]], dtype=float32)

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Code samples licensed under the Apache 2.0 License.
https://www.tensorflow.org/versions/r1.15/api_docs/python/tf/keras/backend/zeros_like