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Some Advanced Features Of Cc's Poweranswer

  • Dan Moldovan
  • Marius Pasca
  • Mihai Surdeanu
Part of the Text, Speech and Language Technology book series (TLTB, volume 32)

Key factors determining the accuracy and usefulness of a question answering system span across several dimensions: depth of linguistic techniques, ability to answer general or domain-specific questions, coverage of textual and other multimedia document sources, support for static local collections and dynamic collections like the Web. This chapter illustrates how advanced features can be added to LCC’s state-of-the-art question answering system to support a wide range of questions along all these dimensions. The impact of each feature is assessed by extracting answers from large text collections and from Web documents.

Keywords

Parse Tree Question Answering Exact Answer Answer Type Question Answering System 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer 2008

Authors and Affiliations

  • Dan Moldovan
    • 1
  • Marius Pasca
    • 2
  • Mihai Surdeanu
    • 1
  1. 1.Language Computer CorporationRichardsonUSA
  2. 2.Google Inc.Mountain ViewUSA

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