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<Paper uid="M93-1007">
  <Title>MUC-5 EVALUATION METRIC S</Title>
  <Section position="1" start_page="0" end_page="0" type="intro">
    <SectionTitle>
INTRODUCTION
</SectionTitle>
    <Paragraph position="0"> The metrics used for the Fifth Message Understanding Conference (MUC-5) evaluation are a major update to those used for MUC-4 in 1992. The official MUC-5 metrics express error rates while the official MUC-4 metric s express performance in terms of recall and precision (used for MUC-5 only as &amp;quot;unofficial&amp;quot; metrics) . This paper discusses the current metrics and the reasons for their adoption .</Paragraph>
  </Section>
class="xml-element"></Paper>