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<Paper uid="C90-3014">
  <Title>A Phonological</Title>
  <Section position="6" start_page="0" end_page="0" type="concl">
    <SectionTitle>
5. Feature Works
</SectionTitle>
    <Paragraph position="0"> At present it is not clear just how to classify and integrate all the knowledge we have accumulated about the natural phonological processes into the grammars of individual languages. We introduced a unification-based grammar formalism for phonology. We verify that unification-based grammar formalism is a very useful theory for constructing the computational speech processing system, similar to a syntactical system.</Paragraph>
    <Paragraph position="1"> In order to construct speech recognition and synthesis system, we need a number of various knowledge sources : acoustic, phonetics, phonology, prosody, morphology, syntax, semantics, and pragmatics. 'Fhe problem is how to represent and use those knowledges. The knowledge representation must keep the transparency among the knowledges with a unified way. Unification-based grammar formalism satisfy the above requirements.</Paragraph>
    <Paragraph position="2"> We also attemp to describe the English phonological knowledge base system with a unification-based formalism, and are implementing the Korean speech recognition /synthesis system\[8\] with the KPSG.</Paragraph>
  </Section>
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