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<Paper uid="N06-1027">
  <Title>Learning to Detect Conversation Focus of Threaded Discussions</Title>
  <Section position="8" start_page="214" end_page="214" type="ackno">
    <SectionTitle>
Acknowledgements
</SectionTitle>
    <Paragraph position="0"> The work was supported in part by DARPA grant DOI-NBC Contract No. NBCHC050051, Learning by Reading, and in part by a grant from the Lord Corporation Foundation to the USC Distance Education Network.</Paragraph>
    <Paragraph position="1"> The authors want to thank Deepak Ravichandran, Feng Pan, and Rahul Bhagat for their helpful suggestions with the manuscript. We would also like to thank the HLT-NAACL reviewers for their valuable comments.</Paragraph>
  </Section>
class="xml-element"></Paper>