brainpy.math.surrogate.InvSquareGrad#

class brainpy.math.surrogate.InvSquareGrad(alpha=100.0)[source]#

Judge spiking state with the inverse-square surrogate gradient function.

See also

inv_square_grad

__init__(alpha=100.0)[source]#

Methods

__init__([alpha])

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.