Research Interests
Artificial Intelligence, Computational Linguistics, Dialogue Systems, Machine Learning, Intelligent Tutoring Systems
Education
Ph.D., Computer Science (currently enrolled)
North Carolina State University
M.S., Computer Science (2013)
North Carolina State University
B.S., Computer Science (2008)
North Carolina State University
Cognitive Science Minor
Mathematics Minor
Magna Cum Laude
Journal Articles
Learner Characteristics and Dialogue: Recognizing Effective and Student-Adaptive Tutorial Strategies. Christopher M. Mitchell, Eun Young Ha, Kristy Elizabeth Boyer, James C. Lester. International Journal of Learning Technology (IJLT), Vol. 8, No. 4, 2013, 382-403.
Conference Papers
Evaluating State Representations for Reinforcement Learning of Turn-Taking Policies in Tutorial Dialogue. Christopher M. Mitchell, Kristy Elizabeth Boyer, James C. Lester. Proceedings of the 14th Annual SIGDIAL Meeting on Discourse and Dialogue, Metz, France, 2013, 339-343.
Learning Dialogue Management Models for Task-Oriented Dialogue with Multiple Communicative Channels. Eun Young Ha, Christopher M. Mitchell, Kristy Elizabeth Boyer, James C. Lester. Proceedings of the 14th Annual SIGDIAL Meeting on Discourse and Dialogue, Metz, France, 2013, 204-213.
A Markov Decision Process Model of Tutorial Intervention in Task-Oriented Dialogue. Christopher M. Mitchell, Kristy Elizabeth Boyer, James C. Lester. Proceedings of the 16th International Conference on Artificial Intelligence in Education, Memphis, Tennessee, 2013, 828-831.
From Strangers to Partners: Examining Convergence within a Longitudinal Study of Task-Oriented Dialogue. Christopher M. Mitchell, Kristy Elizabeth Boyer, James C. Lester. Proceedings of the 13th Annual SIGDIAL Meeting on Discourse and Dialogue, Seoul, Republic of Korea, 2012, 94-98.
Combining Verbal and Nonverbal Features to Overcome the ‘Information Gap’ in Task-Oriented Dialogue. Eun Young Ha, Joseph F. Grafsgaard, Christopher M. Mitchell, Kristy Elizabeth Boyer, James C. Lester. Proceedings of the 13th Annual SIGDIAL Meeting on Discourse and Dialogue, Seoul, Republic of Korea, 2012, 247-256.
Recognizing Effective and Student-Adaptive Tutor Moves in Task-Oriented Tutorial Dialogue. Christopher M. Mitchell, Eun Young Ha, Kristy Elizabeth Boyer, James C. Lester. Proceedings of the Intelligent Tutoring Systems Track of the 25th International Conference of the Florida Artificial Intelligence Research Society, Marco Island, Florida, 2012, 450-455.
Refereed Workshop Papers
When to Intervene: Toward a Markov Decision Process Dialogue Policy for Computer Science Tutoring. Christopher M. Mitchell, Kristy Elizabeth Boyer, James C. Lester. Proceedings of the First Workshop on AI-supported Education for Computer Science, Memphis, Tennessee, 2013, 40-49.
Towards a Computational Model of Narrative Visualization. Alok Baikadi, Julius Goth, Christopher M. Mitchell, Eun Young Ha, Bradford W. Mott, James C. Lester. Fourth Workshop on Intelligent Narrative Technologies, Stanford, California, 2011, 2-9.
Projects
JavaTutor: A natural language tutorial dialogue project for 1st year post-secondary computer science education.
Leonardo: Intelligent virtual science notebooks that enable students to create graphical representations to model physical phenomena.
Narrative Theatre: An intelligent creativity-enhancement environment for 6th grade writing education.
Expertiza: An online system allowing for peer review of student assignments and reuse of those assignments as learning tools. Worked on the project during Fall 2007 semester.