Hard sigmoid activation function.

The hard sigmoid activation is defined as:

• 0 if if x <= -3

• 1 if x >= 3

• (x/6) + 0.5 if -3 < x < 3

It's a faster, piecewise linear approximation of the sigmoid activation.

Usage

activation_hard_sigmoid(x)

Arguments

x

Input tensor.

Value

A tensor, the result from applying the activation to the input tensor x.

Reference

• Wikipedia "Hard sigmoid"

See also

• https://keras.io/api/layers/activations#hardsigmoid-function

Other activations:
activation_elu()
activation_exponential()
activation_gelu()
activation_leaky_relu()
activation_linear()
activation_log_softmax()
activation_mish()
activation_relu()
activation_relu6()
activation_selu()
activation_sigmoid()
activation_silu()
activation_softmax()
activation_softplus()
activation_softsign()
activation_tanh()