Designing Web-Based Adaptive Support for Debate with Dialogue Modelling
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Designing Web-Based Adaptive Support for Debate
with Dialogue Modelling
John Cook
Learning Technology Research Institute
www.unl.ac.uk/ltri/
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Structure of talk
Introduction
Approach to designing computer-based pedagogical
agents
Dialogue analysis and modelling
Future work
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e
internet
intranet
browser
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Introduction
Agent is needed when students are preparing to
engage in an online debate
Individual contributions online debate worth 40%
Defending open-ended evaluation criteria using
Collabra
Addressing implementation challenges in real-world
situations
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Approach to designing computer-based pedagogical
agents Limitations in the available methods for building models of open-
ended debates, our approach:
Theoretical framework
Analysis techniques of interaction data
Computational model, i.e. system design.
Computer implementation, e.g. MetaMuse
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Dialogue analysis and modelling
Analysing the interaction data for occurrences of
categories of goals drawn from our theoretical
framework
Patterns of goals will be modelled as state transition
networks
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2 3 4 6TA: motivation encouragement
8
TA: Task
7
LA: critical clarification
TA: critical probing TA: Task
TA: critical give reasons
TA: motivation encouragement
5
TA: motivation encouragement
TA: motivation encouragement LA: critical
clarification
TA: Task
TA: critical give reasons
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Dialogues from 1999 put online as a vicarious
learning resource for 2000 students
Used WebCT this year
Approximately 1500 postings in 10 day debate
4 tutors and over 100 students
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Future work
Analyse 2000 debate to build debating skills agent
Simulate some of the debates to further assist
vicarious learning