where p is the data set, n is the total number of input
nodes, xi(p) is a sampled data present at the ith node,
wij(p) is the weight assigned to the link between the
ith and the jth nodes, bj(p) and wj(p) are the bias
and weight linking between bias and the jth node and
yj(p) is the response at node the jth node. As for the
RBF configuration, equation (3) was employed.