face happiness 0.4 0.9 0.3 0.4 2.3 biosignal 0.123 1.12 face 2.5 0.7 joy 0.6 0.2 0.3 0.4 -1.4 1.2 voice 0.0 3.4 friendliness 1.0 0.2 0.5 0.4 0.2 0.8 face 0.5 1.4 happiness 1.0 0.3 0.9 0.4 0.5 -1.4 0.5