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Tammie Dudley <[log in to unmask]>
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PhD Student <[log in to unmask]>
Thu, 22 Oct 2009 13:59:14 -0400
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Dear All,

Departmental Colloquium

Automatic Modeling of Procedural Knowledge and Feedback Generation
in a Tutoring System for Computer Science

Dr. Davide Fossati
Computing Innovation Research Fellow
School of Interactive Computing
Georgia Institute of Technology

This research takes place in the larger context of the study of 
one-on-one tutoring, a form of instruction that has been shown to be 
very effective. We conducted a study of human tutoring in the domain of 
Computer Science data structures, to understand which features and 
strategies of human tutoring are important for learning. We developed an 
Intelligent Tutoring System, iList, that helps students learn linked 
lists. One of the main advancements in iList is the presence of a 
Procedural Knowledge Model automatically extracted from student data. 
This model allows iList to provide effective reactive and proactive 
procedural feedback while a student is solving a problem. We tested five 
different versions of iList, differing in the level of feedback they can 
provide, in multiple classrooms, with a total of more than 200 students. 
The evaluation study showed that iList is effective in helping students 
learn; students liked working with the system; and the feedback 
generated by the most sophisticated versions of the system is helpful in 
keeping the students on the right path.

About the Speaker: Davide Fossati received his Ph.D. in Computer Science 
at the University of Illinois at Chicago in summer 2009. He also holds 
an M.Sc. degree in Computer Engineering from the Politecnico di Milano, 
Italy (2004), and an M.Sc. in Computer Science from the University of 
Illinois at Chicago (2003). His research focuses on applications of 
Artificial Intelligence in education, such as Intelligent Tutoring 
Systems, and computational models and tools to support formative 
assessment in Computer Science education.

Friday, October 23, 2009
1:00 p.m.3:00 p.m.
Department Conference Room


yanqing zhang