© 2000 Todd Neller.
A.I.M.A. t
ext
figures
© 1995 Prentice Hall.
Used by
permission.
Activation Functions
•
(a) t = step threshold (can replace with extra input
weight W
0,i
= t & fixed a
0
= -1)
•
(c) sigmoid(x) = 1/(1 + e
-x
)
