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<Paper uid="P01-1028">
  <Title>Generating with a Grammar Based on Tree Descriptions: a Constraint-Based Approach</Title>
  <Section position="7" start_page="0" end_page="0" type="concl">
    <SectionTitle>
7 Conclusion
</SectionTitle>
    <Paragraph position="0"> We have shown that modulo some minor changes, the constraint-based approach to parsing presented in (Duchier and Thater, 1999) could also be used for generation. Furthermore, we have argued that the resulting generator, when combined with a TAG-like grammar and a flat semantics, had some interesting features: it exhibits the lexicalist aspects of bottom-up approaches thereby avoiding the non-termination problems connected with top-down approaches; it includes enough</Paragraph>
    <Section position="1" start_page="0" end_page="0" type="sub_section">
      <SectionTitle>
Example CP Time
</SectionTitle>
      <Paragraph position="0"> The cat likes a fox 1 1.2s The little brown cat likes a yellow fox 2 1.8s The fierce little brown cat likes a yellow fox 2 5.5s The fierce little brown cat likes a tame yellow fox 3 8.0s  top-down guidance from the TAG trees to avoid typical bottom-up shortcomings such as the requirement for grammar semantic monotonicity and by implementing an axiomatic view of grammar, it supports a near-deterministic treatment of intersective modifiers.</Paragraph>
      <Paragraph position="1"> It would be interesting to see whether other axiomatic constraint-based treatments of grammar could be use to support both parsing and generation. In particular, we intend to investigate whether the dependency grammar presented in (Duchier, 1999), once equipped with a semantics, could be used not only for parsing but also for generating. And similarly, whether the description based treatment of discourse parsing sketched in (Duchier and Gardent, 2001) could be used to generate discourse.</Paragraph>
    </Section>
  </Section>
class="xml-element"></Paper>