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<Paper uid="A92-1015">
  <Title>Detecting and Correcting Morpho-syntactic Errors in Real Texts</Title>
  <Section position="2" start_page="0" end_page="0" type="intro">
    <SectionTitle>
1. Introduction
</SectionTitle>
    <Paragraph position="0"> One of the most widely used applications of natural language processing is spell, grammar and style checking. Although most probably semantic analysis is required to obtain entirely satisfactory results, it is never used -- for obvious reasons. Even worse, most language checkers today even restrain from syntactic analysis. This denies them the possibility to find morpho-syntactic errors, which form a large and frequently occurring class of spelling errors. One of the best known systems for English, which does perform syntactic analysis, is Critique (Richardson, 1988).</Paragraph>
    <Paragraph position="1"> In order to detect and correct morpho-syntactic errors a system needs (I) modules for word-level spell checking and correction, (2) a parser which contains a comprehensive grammar and an efficient parsing algorithm, and (3) a mechanism to detect and correct grammatical errors as well as to assist in correcting spelling errors. I will first define the domain of morpho-syntactic errors and motivate the *The author's current address is: Experimental Psychology Unit, Leiden University, P.O. Box 9555,</Paragraph>
  </Section>
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