log_sigmoid

class brainstate.nn.log_sigmoid(x)

Log-sigmoid activation function.

Computes the element-wise function:

\[\mathrm{log\_sigmoid}(x) = \log(\mathrm{sigmoid}(x)) = -\log(1 + e^{-x})\]

Parameters:

x (Array | ndarray | bool | number | bool | int | float | complex | Quantity) – Input array.

Returns:

An array with the same shape as the input.

Return type:

Array | Quantity

See also

sigmoid

The sigmoid function.