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<Paper uid="E87-1015">
  <Title>MULTILEVEL SEMANTIC ANALYSIS IN AN AU'I~MATIC SPEECH UNDERSTANDING AND DIALOG SYSTEM</Title>
  <Section position="6" start_page="89" end_page="89" type="concl">
    <SectionTitle>
5. Conclusion
</SectionTitle>
    <Paragraph position="0"> In this paper a semantic analysis for spoken speech is presented.</Paragraph>
    <Paragraph position="1"> The most important additional problem which arises in comparison to a written input is the combinatorial explosion due to the many word hypotheses produced by the word recognition module. Because of this problem one has to cope with many word ambiguities. For solving these problems we need scores.</Paragraph>
    <Paragraph position="2"> Problems arise with time adjuncts and anaphora. Also hierarchically structured sentences cannot be analyzed with the method of pre-selection of groups, for exampl~ &amp;quot;Could you please look for the best connection to Hamburg?&amp;quot;  Until now two combinations are found but they have bad scores because they cover too 1~ of the speech signal. They cannot be combined together.</Paragraph>
    <Paragraph position="3"> Could I you I look I for the best connection and for the best connection I to Hamburg It is planned to expand the pre-selection in a way that also this problem could be solved.</Paragraph>
    <Paragraph position="4"> The semantic analysis is implemented in LISP at a VAX 11/730.</Paragraph>
  </Section>
class="xml-element"></Paper>