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<Paper uid="W00-1315">
  <Title>Empirical Term Weighting and Expansion Frequency</Title>
  <Section position="9" start_page="122" end_page="122" type="ackno">
    <SectionTitle>
Acknowdedgement
</SectionTitle>
    <Paragraph position="0"> Authors thank Prof. Mitchell P. Marcus of University of Pennsylvania for the valuable discussion about noise reduction in context of information retrieval. This reseach is supported by Sumitomo Electric.</Paragraph>
  </Section>
class="xml-element"></Paper>