Table 1:
Parameters Used in the Simulations.
| Parameter | tmax | N(1) | N(2) | N(3) |  (N<400) |
| Value | 107 | 2N | N |  | 2.7 |
| Parameter | p(1)conn | p(2)conn |  | peq |  ( ) |
| Value | 0.8 | 0.3 | 0.003 | 0.2 | 1.0 |
| Parameter | tmax | N(1) | N(2) | N(3) | (N<400) |
| Value | 107 | 2N | N | | 2.7 |
| Parameter | p(1)conn | p(2)conn | | peq | () |
| Value | 0.8 | 0.3 | 0.003 | 0.2 | 1.0 |
Note: N: Input vector size; N(k): size of layer k; tmax : number of steps of
simulation; peq: probability of equal inputs; p(k)conn:
probability of connection from the kth layer to the
(k+1)th layer; 
: sigmoid slope; 
: learning rate.