tf.keras.backend.hard_sigmoid

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Segment-wise linear approximation of sigmoid.

tf.keras.backend.hard_sigmoid(
    x
)

Faster than sigmoid. Returns 0. if x < -2.5, 1. if x > 2.5. In -2.5 <= x <= 2.5, returns 0.2 * x + 0.5.

Arguments:

• x: A tensor or variable.

Returns:

A tensor.