\form#0:$ f(z) = \max(0, z) $ \form#1:$ f(z) = \frac{1}{1+e^{-z}} $ \form#2:$ f(z)_j = \frac{e^{-z_j}}{\sum_{i=0}^{K}e^{-z_i}} $ \form#3:$ f(z) = \frac{e^{z}-e^{-z}}{e^{z}+e^{-z}} $ \form#4:$ y^i = \frac{x^i}{(1+\frac{\alpha}{N}\sum^{\min(N-1, i+N/2)}_{j=\max(0, i-N/2)}x^j)^\beta} $ \form#5:$x^i$ \form#6:$\alpha$ \form#7:$\beta$