Human-Computer Interaction
The impact of three pedagogical agent roles
AAMAS '03 Proceedings of the second international joint conference on Autonomous agents and multiagent systems
Towards a Standard for Mobile E-Learning
ICNICONSMCL '06 Proceedings of the International Conference on Networking, International Conference on Systems and International Conference on Mobile Communications and Learning Technologies
New Generation of E-Learning Technologies
IMSCCS '06 Proceedings of the First International Multi-Symposiums on Computer and Computational Sciences - Volume 2 (IMSCCS'06) - Volume 02
Human-Computer Interaction (3rd Edition)
Human-Computer Interaction (3rd Edition)
Designing agents to support learning by explaining
Computers & Education
FIE '00 Proceedings of the 30th Annual Frontiers in Education - Volume 02
Efficiency of multimodal metaphors in the presentation of learning information
BCS-HCI '08 Proceedings of the 22nd British HCI Group Annual Conference on People and Computers: Culture, Creativity, Interaction - Volume 2
Emotionally expressive avatars for chatting, learning and therapeutic intervention
HCI'07 Proceedings of the 12th international conference on Human-computer interaction: intelligent multimodal interaction environments
Multimodal metaphors for note taking in e-learning
SEPADS'11 Proceedings of the 10th WSEAS international conference on Software engineering, parallel and distributed systems
Improving gestural communication in virtual characters
AMDO'12 Proceedings of the 7th international conference on Articulated Motion and Deformable Objects
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This paper introduces an experimental study performed to investigate the usability aspects of e-learning interfaces that incorporate the use of avatar as a virtual lecturer. A within-subject experiment has been conducted using three different e-learning interfaces which were developed from scratch and tested by a group of 48 users. Each of these three interfaces involved the use of a human-like avatar as a virtual lecturer to present one of three different lessons about class diagram notation usually used in the software engineering process. The scope of this paper is to report and discuss the experimental results related to users' satisfaction and views in regard to a set of facial expressions and body gestures when used by a virtual lecturer in the presence and absence of interactive context in e-learning interfaces. These results highlighted that some facial expressions as well as some body gestures were perceived by the users more positively than other expressions and gestures. Consequently, it could be used to improve the attractiveness of virtual lecturers which in turn will be reflected in increasing users' motivation and interest about the presented learning material.