reservoirpy.activationsfunc.softplus

reservoirpy.activationsfunc.softplus(x)

Softplus activation function.

\[f(x) = \mathrm{ln}(1 + e^{x})\]

Can be used as a smooth version of ReLU.

Parameters:

x (array) – Input array.

Returns:

Activated vector.

Return type:

array