Christopher M. Mitchell

Ph.D. Student
Department of Computer Science
North Carolina State University

E-mail: cmmitch2 AT ncsu.edu

Address:
Department of Computer Science
North Carolina State University
Engineering Building II, room 2290
890 Oval Drive
Raleigh, NC 27695-8206
U.S.A.

Research Interests

Artificial Intelligence, Computational Linguistics, Dialogue Systems, Machine Learning, Intelligent Tutoring Systems

 

Education

Ph.D., Computer Science (expected 2014)
   Deriving Effective Dialogue Strategies from Human Tutoring with Reinforcement Learning
   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

A Trialogue-Based Spoken Dialogue System for Assessment of English Language Learners. Christopher M. Mitchell, Keelan Evanini, Klaus Zechner. Fifth International Workshop on Spoken Dialog Systems, Napa, California, 2014, 194-200.

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.