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Using IS-A Relation Patterns for Factoid Questions in Question Answering Systems.
Bojun Shim
Youngjoong Ko
Jungyun Seo
Published in:
IEICE Trans. Inf. Syst. (2006)
Keyphrases
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question answering systems
question answering
natural language
question classification
information retrieval systems
document retrieval
machine learning
search engine
expert systems
information extraction