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<Paper uid="P91-1052">
  <Title>Modifying Beliefs in a Plan-Based Dialogue Model</Title>
  <Section position="1" start_page="0" end_page="0" type="abstr">
    <SectionTitle>
1 Introduction
</SectionTitle>
    <Paragraph position="0"> Previous models of discourse have inadequately accounted for how beliefs change during a conversation.</Paragraph>
    <Paragraph position="1"> This paper outlines a model of dialogue which maintains and updates a user's multi-level belief model as the discourse proceeds. This belief model is used in a plan-recognition framework to identify communicative goals such as expressing surprise.</Paragraph>
  </Section>
class="xml-element"></Paper>