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<Paper uid="C92-3145">
  <Title>A Freely Available Wide Coverage Morphological Analyzer for English*</Title>
  <Section position="2" start_page="0" end_page="0" type="intro">
    <SectionTitle>
1 Introduction
</SectionTitle>
    <Paragraph position="0"> Morphological analysis has experienced great success since the introduction of two-level morphology (Koskenniemi, 1983; Karttunen, 1983). Two-level morphology and its implementation are now well understood both linguistically and eomputationany (Karttunen, 1983; Karttunen and Wittenburg, 1983; Koskenniemi, 1985; Barton et al., 1987; Koskenniemi and Church, 1988). This computational model has proved to be well suited for many languages. Although there are some proprietary wide coverage morphological analyzers for English, to our knowledge those that are freely available provide only very small coverage.</Paragraph>
    <Paragraph position="1"> Working from the 1979 edition of the Collins Dictionary of the English Language available through ACL-DCI (Liberman, 1989), we constructed lexicons for PC-KIMMO (Antworth, 1990), a public domain implementation of a two-level processor. Using the morphological rules for English inflections provided by Karttunen and Wittenburg (1983) and our lexicons, PC-KIMMO outputs all possible analyses of each input word, giving its root form and its inflectional *This work was partially supported by DARPA Grant N001490-31863, ARO Grant DAAL03-89-C-0031, and NSF Grant IPd90-16592. We thank Aravind Joshl for his support for this work. We also thank Evan Antworth, Mark Fo~ter, Laur~ Karttunen, Mark Liberman, and Annie Zaenen for their help and suggestions. ?Visiting from Stanford University.</Paragraph>
  </Section>
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