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<Paper uid="C04-1172">
  <Title>Emdros a text database engine for analyzed or annotated text</Title>
  <Section position="2" start_page="0" end_page="0" type="intro">
    <SectionTitle>
1 Introduction
</SectionTitle>
    <Paragraph position="0"> As (Abeill*e, 2003) points out, corpus-based linguistics has been largely limited to phenomena that can be accessed via searches on particular words.</Paragraph>
    <Paragraph position="1"> Inquiries about subject inversion or agentless passives are impossible to perform on commonly available corpora (p. xiii).</Paragraph>
    <Paragraph position="2"> Emdros is a text database engine which attempts to remedy this situation in some measure. Emdros' query language is very powerful, allowing the kind of searches which Abeill*e mentions to be formulated quickly and intuitively. Of course, this presupposes a database which is tagged with the data necessary for answering the query.</Paragraph>
    <Paragraph position="3"> Work has been done on supporting complex queries, e.g., (Bird et al., 2000; Cassidy and Bird, 2000; Mengel, 1999; Clarke et al., 1995). Emdros complements these pieces of work, providing a working implementation of many of the features which these systems support.</Paragraph>
    <Paragraph position="4"> In this paper, I present the EMdF text database model on which Emdros rests, and the MQL query language which it implements. In addition, I give an example of how Emdros can be useful in answering questions in computational linguistics.</Paragraph>
  </Section>
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