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<Paper uid="P04-2008">
  <Title>Improving the Accuracy of Subcategorizations Acquired from Corpora</Title>
  <Section position="1" start_page="0" end_page="0" type="abstr">
    <SectionTitle>
Abstract
</SectionTitle>
    <Paragraph position="0"> This paper presents a method of improving the accuracy of subcategorization frames (SCFs) acquired from corpora to augment existing lexicon resources. I estimate a confidence value of each SCF using corpus-based statistics, and then perform clustering of SCF confidence-value vectors for words to capture co-occurrence tendency among SCFs in the lexicon. I apply my method to SCFs acquired from corpora using lexicons of two large-scale lexicalized grammars.</Paragraph>
    <Paragraph position="1"> The resulting SCFs achieve higher precision and recall compared to SCFs obtained by naive frequency cut-off.</Paragraph>
  </Section>
class="xml-element"></Paper>