Table 2: Comparisons using AUC values in 5 groups (Hybrid: combining face and speech data, FF: using full features, FS: using feature selection).

MethodFemale-20Female-30Female-50Male-30Male-50

Hybrid-FS0.890.640.750.720.78
Hybrid-FF0.670.590.670.670.69
Face-FS0.770.670.690.730.71
Face-FF0.620.590.630.630.62
Speech-FS0.690.570.580.670.73
Speech-FF0.60.480.540.590.64