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Alignment-based surface patterns for factoid question answering systems.
Cheng-Lung Sung
Cheng-Wei Lee
Hsu-Chun Yen
Wen-Lian Hsu
Published in:
Integr. Comput. Aided Eng. (2009)
Keyphrases
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question answering
question answering systems
open domain
question classification
passage retrieval
information extraction
natural language processing
natural language
syntactic information
answer extraction
data mining techniques
semantic roles
information retrieval
candidate answers