705483.fig.009a
(a)
705483.fig.009b
(b)
Figure 9: A pictorial representation of the “frequency-based grouping” process. The first step of the process, as shown in (a), is to determine a relative threshold time constant (Tau) for the reduced network, reduced by “dynamics-deprived neuron elimination” process, followed by grouping the neurons in the architecture based on the frequency of the output produced by individual neuron (i.e., the neurons with time constant less than the relative threshold are clustered into high frequency group, and neurons with time constants more than the relative threshold are clustered into low frequency group) as shown in (b).