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<Paper uid="H93-1046">
  <Title>MEASURES AND MODELS FOR PHRASE RECOGNITION</Title>
  <Section position="2" start_page="0" end_page="0" type="intro">
    <SectionTitle>
ABSTRACT
</SectionTitle>
    <Paragraph position="0"> I present an entropy measure for evaluating parser performance. The measure is fine-grained, and permits us to evaluate performance at the level of individual phrases. The parsing problem is characterized as statistically approximating the Penn Treebank annotations. I consider a series of models to &amp;quot;calibrate&amp;quot; the measure by determining what scores can be achieved using the most obvious kinds of information. I also relate the entropy measure to measures of recall/precision and grammar coverage.</Paragraph>
  </Section>
class="xml-element"></Paper>