tf.keras.backend.is_sparse

tf.keras.backend.is_sparse(tensor)

Defined in tensorflow/python/keras/_impl/keras/backend.py.

Returns whether a tensor is a sparse tensor.

Arguments:

• tensor: A tensor instance.

Returns:

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