ICALT '01 Proceedings of the IEEE International Conference on Advanced Learning Technologies
How tutors characterize students: a study of personal constructs in tutoring
ICLS '96 Proceedings of the 1996 international conference on Learning sciences
Toward an Affect-Sensitive AutoTutor
IEEE Intelligent Systems
Evaluating a Probabilistic Model for Affective Behavior in an Intelligent Tutoring System
ICALT '08 Proceedings of the 2008 Eighth IEEE International Conference on Advanced Learning Technologies
Modeling User Affect from Causes and Effects
UMAP '09 Proceedings of the 17th International Conference on User Modeling, Adaptation, and Personalization: formerly UM and AH
Sensors Model Student Self Concept in the Classroom
UMAP '09 Proceedings of the 17th International Conference on User Modeling, Adaptation, and Personalization: formerly UM and AH
Multimethod assessment of affective experience and expression during deep learning
International Journal of Learning Technology
Proceedings of the 2009 conference on Artificial Intelligence in Education: Building Learning Systems that Care: From Knowledge Representation to Affective Modelling
Affective Gendered Learning Companions
Proceedings of the 2009 conference on Artificial Intelligence in Education: Building Learning Systems that Care: From Knowledge Representation to Affective Modelling
Modeling engagement dynamics in spelling learning
AIED'11 Proceedings of the 15th international conference on Artificial intelligence in education
Modeling confusion: facial expression, task, and discourse in task-oriented tutorial dialogue
AIED'11 Proceedings of the 15th international conference on Artificial intelligence in education
Encouraging students to study more: adapting feedback to personality and affective state
AIED'11 Proceedings of the 15th international conference on Artificial intelligence in education
Towards a Framework for Modelling Engagement Dynamics in Multiple Learning Domains
International Journal of Artificial Intelligence in Education - Best of AIED 2011
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Recent progress has been made by using sensors with Intelligent Tutoring Systems in classrooms in order to predict the affective state of students users If tutors are able to interpret sensor data with new students based on past experience, rather than having to be individually trained, then this will enable tutor developers to evaluate various methods of adapting to each student's affective state using consistent predictions In the past, our classifiers have predicted student emotions with an accuracy between 78% and 87% However, it is still unclear which sensors are best, and the educational technology community needs to know this to develop better than baseline classifiers, e.g ones that use only frequency of emotional occurrence to predict affective state This paper suggests a method to clarify classifier ranking for the purpose of affective models The method begins with a careful collection of a training and testing set, each from a separate population, and concludes with a non-parametric ranking of the trained classifiers on the testing set We illustrate this method with classifiers trained on data collected in the Fall of 2008 and tested on data collected in the Spring of 2009 Our results show that the classifiers for some affective states are significantly better than the baseline model; a validation analysis showed that some but not all classifier rankings generalize to new settings Overall, our analysis suggests that though there is some benefit gained from simple linear classifiers, more advanced methods or better features may be needed for better classification performance.