Rosé, C., Bhembe, D., Roque, A., Siler, S., Srivastava, R., & VanLehn, K. A. (2002). Hybrid Language Understanding Approach for Robust Selection of Tutoring Goals. In S. A. Cerri, G. Gouarderes, & F. Paraguacu (Eds.), Intelligent Tutoring Systems, 2002, 6th International Conference (pages 552-561).

In this paper we explore the problem of selecting appropriate knowledge construction dialogues (KCDs) for the purpose of encouraging students to include important points in their qualitative physics  explanations that are missing.  We describe a hybrid symbolic / statistical approach developed in the context of the WHY2 conceptual physics tutor.  Our preliminary results demonstrate that our hybrid approach outperforms both the symbolic approach and the statistical approach by themselves.

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