braincore.surrogate module

Surrogate Gradient Functions

sigmoid	Spike function with the sigmoid-shaped surrogate gradient.
piecewise_quadratic	Judge spiking state with a piecewise quadratic function [1]_ [2]_ [3]_ [4]_ [5]_.
piecewise_exp	Judge spiking state with a piecewise exponential function [1]_.
soft_sign	Judge spiking state with a soft sign function.
arctan	Judge spiking state with an arctan function.
nonzero_sign_log	Judge spiking state with a nonzero sign log function.
erf	Judge spiking state with an erf function [1]_ [2]_ [3]_.
piecewise_leaky_relu	Judge spiking state with a piecewise leaky relu function [1]_ [2]_ [3]_ [4]_ [5]_ [6]_ [7]_ [8]_.
squarewave_fourier_series	Judge spiking state with a squarewave fourier series.
s2nn	Judge spiking state with the S2NN surrogate spiking function [1]_.
q_pseudo_spike	Judge spiking state with the q-PseudoSpike surrogate function [1]_.
leaky_relu	Judge spiking state with the Leaky ReLU function.
log_tailed_relu	Judge spiking state with the Log-tailed ReLU function [1]_.
relu_grad	Spike function with the ReLU gradient function [1]_.
gaussian_grad	Spike function with the Gaussian gradient function [1]_.
inv_square_grad	Spike function with the inverse-square surrogate gradient.
multi_gaussian_grad	Spike function with the multi-Gaussian gradient function [1]_.
slayer_grad	Spike function with the slayer surrogate gradient function.

Surrogate Gradient Classes

Sigmoid	Spike function with the sigmoid-shaped surrogate gradient.
PiecewiseQuadratic	Judge spiking state with a piecewise quadratic function.
PiecewiseExp	Judge spiking state with a piecewise exponential function.
SoftSign	Judge spiking state with a soft sign function.
Arctan	Judge spiking state with an arctan function.
NonzeroSignLog	Judge spiking state with a nonzero sign log function.
ERF	Judge spiking state with an erf function.
PiecewiseLeakyRelu	Judge spiking state with a piecewise leaky relu function.
SquarewaveFourierSeries	Judge spiking state with a squarewave fourier series.
S2NN	Judge spiking state with the S2NN surrogate spiking function.
QPseudoSpike	Judge spiking state with the q-PseudoSpike surrogate function.
LeakyRelu	Judge spiking state with the Leaky ReLU function.
LogTailedRelu	Judge spiking state with the Log-tailed ReLU function.
ReluGrad	Judge spiking state with the ReLU gradient function.
GaussianGrad	Judge spiking state with the Gaussian gradient function.
InvSquareGrad	Judge spiking state with the inverse-square surrogate gradient function.
MultiGaussianGrad	Judge spiking state with the multi-Gaussian gradient function.
SlayerGrad	Judge spiking state with the slayer surrogate gradient function.