tf.keras.ops.sparse_sigmoid

Sparse sigmoid activation function.

View aliases

Main aliases

tf.keras.ops.nn.sparse_sigmoid

tf.keras.ops.sparse_sigmoid(
    x
)

It is defined as

f(x) = 0 for x <= -1, f(x) = 0.5 * (x + 1) for -1 < x < 1, f(x) = 1 for x >= 1.

Args
x	Input tensor.

Returns
A tensor with the same shape as x.

Example:

x = keras.ops.convert_to_tensor([-6.0, 1.0, 0.0, 1.0, 6.0])
keras.ops.sparse_sigmoid(x)
array([0. , 1. , 0.5, 1. , 1. ], dtype=float32)