Figure 7

The rescaled AICc values are plotted with respect to the number of HMM states and Gaussian mixtures. (a) The simplest model with ΔAICc < 0.25 is at Q = 3 and M = 2. In this model, the reduced feature space consists of 2-D wavelet coefficients. (b) With the 4-D wavelet and rate of change features established using mRMR, the simplest model with ΔAICc < 0.25 is found at Q = 5, M = 3.