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<Paper uid="P95-1005">
  <Title>Discourse Processing of Dialogues with Multiple Threads</Title>
  <Section position="9" start_page="37" end_page="37" type="concl">
    <SectionTitle>
5 Conclusions and Future Directions
</SectionTitle>
    <Paragraph position="0"> In this paper we have demonstrated one way in which TST is not adequate for describing the structure of discourses with multiple threads in a perspicuous manner. While this study only explores the structure of negotiation dialogues, its results have implications for other types of discourse as well. This study indicates that it is not a structural property of discourse that Attentional State is constrained to exhibit stack like behavior. We intend to extend this research by exploring more fully the implications of our extension to TST in terms of discourse focus more generally. It is clear that it will need to be limited by a model of resource bounds of attentional capacity (Walker 1993) in order to avoid overgenerating.</Paragraph>
    <Paragraph position="1"> We have also described our extension to TST in terms of a practical application of it in our implemented discourse processor. We demonstrated that our extension to TST yields an increase in performance in our implementation.</Paragraph>
  </Section>
class="xml-element"></Paper>