Sensor-free automated detection of affect in a Cognitive Tutor for Algebra.
Ryan Shaun Joazeiro de BakerSujith M. GowdaMichael WixonJessica KalkaAngela Z. WagnerAatish SalviVincent AlevenGail KusbitJaclyn OcumpaughLisa M. RossiPublished in: EDM (2012)