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tf.keras.backend.is_sparse

TensorFlow 2 version View source on GitHub

Returns whether a tensor is a sparse tensor.

tensor A tensor instance.

A boolean.

Example:

from keras import backend as K
a = K.placeholder((2, 2), sparse=False)
print(K.is_sparse(a))
False
b = K.placeholder((2, 2), sparse=True)
print(K.is_sparse(b))
True