eISSN 2093-744X
pISSN 1598-2645

Fig. 12.

Surrogate gradient functions which lim_a_{_i→0₊}h_i(u) = dg(u)/du where g(u) is an activation function [42].

International Journal of Fuzzy Logic and Intelligent Systems 2021;21:317~337 https://doi.org/10.5391/IJFIS.2021.21.4.317