Collaborative learning is question-driven and open-ended by nature. Many of the techniques developed for intelligent tutoring are applicable only in more structured settings, but f...
Inspired by Hill and Hollan’s original work [6], we have been developing a theory of interaction history and building tools to apply this theory to navigation in a complex infor...
With the growing interest in modular ontology languages to address the need for collaborative development, integration, and use of ontologies on the Web, there is an urgent need fo...
This paper argues for a joint development of an eye gaze -based, on-line communication aid running on a standard PC with a web -camera. Tracking software is to be provided as open...
John Paulin Hansen, Dan Witzner Hansen, Anders Sew...
A smile may communicate different meanings depending on subtle characteristics of the facial expression. In this article, we have studied the morphological and dynamic characteris...