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<Paper uid="E91-1024">
  <Title>cation of default inheritance mechanisms. In</Title>
  <Section position="3" start_page="0" end_page="0" type="intro">
    <SectionTitle>
2 REPRESENTATION OF LEXICAL
INFORMATION
</SectionTitle>
    <Paragraph position="0"> The formalism of PATR offers two possible means of representing lexical information. First of all, the information can be encoded in feature structures directly. Except for computational tractability, none of the other criteria are met. The second facility consists of macros or templates which assemble the lingnistic information so that it can be reused in various places in the lexicon. This meets the most important of the above-mentioned conditions and reduces redundancy. But the encoded information is inherited monotonically, i.e. only regularities can be expressed. In order to structure lexical information adequately, other relations like subregularities and exceptions should also be expressible.</Paragraph>
    <Paragraph position="1"> Macros fail to achieve this, whereas default inheritance networks are well-suited for the purpose. In the following section we give an overview of one such network formalism which was primarily designed for representing lexical information.</Paragraph>
    <Paragraph position="2"> We assume that certain conditions must be met by an adequate representation of lexical information. The most important of these is that it captures linguistic generalizations, which - 137 -</Paragraph>
  </Section>
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