brainpy.math.surrogate.SoftSign

class brainpy.math.surrogate.SoftSign(alpha=1.0, forward_use_surrogate=False)

Judge spiking state with a soft sign function.

See also

soft_sign

__init__(alpha=1.0, forward_use_surrogate=False)

Methods

__init__([alpha, forward_use_surrogate])
call(x)	Call the function for surrogate gradient propagation.
surrogate_fun(x)	The surrogate function.
surrogate_grad(dz, x)	The gradient for the surrogate function.
true_fun(x)	The original true function.