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<Paper uid="W06-2903">
  <Title>Non-Local Modeling with a Mixture of PCFGs</Title>
  <Section position="7" start_page="19" end_page="19" type="concl">
    <SectionTitle>
5 Conclusions
</SectionTitle>
    <Paragraph position="0"> We examined the sorts of rule correlations that may be found in natural language corpora, discovering non-local correlations not captured by traditional models. We found that using a model capable of representing these non-local features gives improvement in parsing accuracy and data likelihood. This improvement is modest, however, primarily because local correlations are so much stronger than non-local ones.</Paragraph>
  </Section>
class="xml-element"></Paper>