[Generic] learning algorithm [Neural Network] Hebbian, back propagation [Classifier System] bucket brigade [Autocatalytic Network] approach to attractor [Immunity Network] 
clonal selection
a n t i b o d y t y p e
f r e e a n t i b o d y
c h e m i c a l r e a c t i o n
r e a c t i o n a f f i n i t y
b e l l - s h a p e d
c l o n a l s e l e c t i o n
g e n e t i c a l g o r i t h m s