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<Paper uid="N06-1052">
  <Title>Language Model Information Retrieval with Document Expansion</Title>
  <Section position="6" start_page="413" end_page="413" type="ackno">
    <SectionTitle>
5 Acknowledgments
</SectionTitle>
    <Paragraph position="0"> This work is in part supported by the National Science Foundation under award number IIS-0347933.</Paragraph>
    <Paragraph position="1"> We thank Xiaoyong Liu for kindly providing us several processed data sets for our performance comparison. We thank Jing Jiang and Azadeh Shakery for helping improve the paper writing, and thank the anonymous reviewers for their useful comments.</Paragraph>
  </Section>
class="xml-element"></Paper>