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<Paper uid="M91-1004">
  <Title>MUC-3 LINGUISTIC PHENOMENA TEST EXPERIMEN T</Title>
  <Section position="1" start_page="0" end_page="0" type="abstr">
    <SectionTitle>
INTRODUCTION
</SectionTitle>
    <Paragraph position="0"> The evaluation of data extraction systems can be supplemented by determinin g performance of the systems on a representative selection of linguistic phenomena .</Paragraph>
    <Paragraph position="1"> The experiment performed as part of the MUC-3 evaluation was aimed at determinin g whether linguistic phenomena can be tested in isolation for state-of-the-art dat a extraction . Although not all of the methods of data extraction used by the participants in MUC-3 directly process linguistic phenomena, the methods are dealing with those phenomena in some manner because they are present in the input .</Paragraph>
    <Paragraph position="2"> Phenomena testing in MUC-3 is testing according to the characteristics of th e messages rather than characteristics of the systems processing those messages .</Paragraph>
    <Paragraph position="3"> In order to determine the validity of phenomena testing at the current level of syste m performance, an experiment was run . The results of the experiment indicate that linguistic phenomena are isolatable and that performance for linguistic phenomen a can be measured using the MUC-3 scoring system .</Paragraph>
  </Section>
class="xml-element"></Paper>