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<Paper uid="P92-1007">
  <Title>A Functional Approach to Generation with TAG 1</Title>
  <Section position="6" start_page="53" end_page="53" type="concl">
    <SectionTitle>
5 Conclusions
</SectionTitle>
    <Paragraph position="0"> In this paper we started with considering the principles underlying the design of any TAG-based generator. We have shown how these principles have been incorporated in our generation system and have compared it with other TAG-based generators.</Paragraph>
    <Paragraph position="1"> The architecture of our generation system incorporates both functional aspects of generation and syntactic aspects. Each of these aspects is handled separately, by two different formalisms which are uniquely combined in our architecture.</Paragraph>
    <Paragraph position="2"> The result is a sentence generation system which has the advantage of incorporating two bodies of knowledge into one system. Our system has several advantages over Mumble-86. In addition to the use of systemic grammar as a theory for realization and a function (rather than syntactic) directed generation process, we have shown that our methodology does not place any special requirements on the input logical form. Our methodology can proceed in a head-driven manner using notions such as the mapping table and the functional root to decide how trees should be combined. These notions allow fine distinctions in form which are not possible in Mumble-86. In addition, our system separates functional from syntactic decisions thus allowing these two bodies to be expanded independently. null A prototype of our system has been implemented in Lucid Common Lisp on a Sun Workstation. Details of the implementation can be found in (Yang, 1991).</Paragraph>
  </Section>
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