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<Paper uid="A97-1007">
  <Title>Insights into the Dialogue Processing of VERBMOBIL</Title>
  <Section position="11" start_page="38" end_page="38" type="relat">
    <SectionTitle>
7 Related Work
</SectionTitle>
    <Paragraph position="0"> In the speech-to-speech translation system JANUS (Lavie et al., 1996), two different approaches, a plan based and an automaton based, to model dialogues have been implemented. Currently, only one is used at a time. For VERBMOBIL, (Alexandersson and Reithinger, 1995) showed that the descriptive power of the plan recognizer and the predictive power of the statistical component makes the automaton obsolete. null The automatic acquisition of a dialogue model from a corpus is reported in (Kita et al., 1996).</Paragraph>
    <Paragraph position="1"> They extract a probabilistic automaton using an annotated corpus of up to 60 dialogues. The transitions correspond to dialogue acts. This method captures only local discourse structures, whereas the plan based approach of VERBMOBIL also allows for the description of global structures. Comparable structures are also defined in the dialogue processing of TaAINS (Traum and Allen, 1992). However, they are defined manually and have not been tested on larger data sets.</Paragraph>
  </Section>
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