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<Paper uid="E89-1004">
  <Title>Dialog Control in a Natural Language System 1</Title>
  <Section position="8" start_page="0" end_page="0" type="concl">
    <SectionTitle>
FUTURE RESEARCH
</SectionTitle>
    <Paragraph position="0"> The method described in this paper is fully implemented and integrated in the complete NL system WISBER. A relatively small set of rules has proved sufficient to guide basic consultation dialogs. Currently we are extending the set of dialog control rules to perform more complex dialogs. Our special interest lies on clarification dialogs to handle misconceptions and inconsistencies. The first steps towards handling inconsistent user goals will be an explicit representation of the interrelationships holding between propositional attitudes, e.g., goals being simultaneous or competing, or one goal being a refinement of another goal. A major question will be specifying the operations necessary to recognize those interrelationships working on the semantic representation of the propositional contents. As our set of rules grows, a more sophisticated control mechanism will become necessary, structuring the derivation process and employing both forward and backward reasoning.</Paragraph>
  </Section>
class="xml-element"></Paper>