Masaki TakahashiMasahide NaemuraMahito FujiiShin'ichi Satoh 0001Estimation of Attentiveness of People Watching TV Based on Their Emotional Behaviors.809-8142013ACIIhttps://doi.org/10.1109/ACII.2013.151https://doi.ieeecomputersociety.org/10.1109/ACII.2013.151conf/acii/2013db/conf/acii/acii2013.html#TakahashiNFS13