MISSION
PEOPLE
PUBLICATIONS
DEMOS
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The research project will:
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develop tools for building tutoring systems
that conduct
explanation-based natural language dialogs
-
use the tools to develop tutoring systems for
at least two
task domains, and
-
evaluate their effectiveness compared to
expert human tutors
and to versions of the systems that use constrained language instead of
natural language.
Our basic approach is to combine a shallow,
statistical approach
with deep, symbolic approaches. Although prototypes of these
components
have been developed in our earlier work, all require significant
extensions
to handle explanation-based tutorial dialogs. We believe our
hybrid
approach will yield both the robustness and depth of understanding that
explanation-based tutorial dialogs require.
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