<?xml version="1.0" standalone="yes"?>
<Paper uid="C92-1049">
  <Title>USING LINGUISTIC, WORLD, AND CONTEXTUAL KNOWLEDGE IN A PLAN RECOGNITION MODEL OF DIALOGUE ~</Title>
  <Section position="3" start_page="0" end_page="0" type="intro">
    <SectionTitle>
1 Introduction
</SectionTitle>
    <Paragraph position="0"> Recognizing the roles that utterances play in a dialogue and how the utterances should be interpreted in the context of preceding dialogue is a crucial part of a robust model of understanding. In order to perform this recognition, our tripartite plan-based model of dialogue identifies not only domain and problem-solving actions but also discourse or communicative actions that determine how utterances relate to each other.</Paragraph>
    <Paragraph position="1"> For this communicative action recognition, we combine information gleaned from a variety of knowledge sources: contextual, linguistic, and world knowledge.</Paragraph>
    <Paragraph position="2"> The combination of these different knowledge sources enables the recognition of complex communicative actions such as expressing donbt. Although our tripartite model recognizes three different kinds of actions (domain, problem-solving, and discourse), the focus of this paper will be the recognition of discourse actions and how a combination of knowledge sonrces enables us to perform this recognition.</Paragraph>
  </Section>
class="xml-element"></Paper>