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Opinion and Generic Question Answering Systems: a Performance Analysis.
Alexandra Balahur
Ester Boldrini
Andrés Montoyo
Patricio Martínez-Barco
Published in:
ACL/IJCNLP (2) (2009)
Keyphrases
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question answering systems
question answering
question classification
document retrieval
natural language
information retrieval systems
sentiment analysis
passage retrieval
high level
query expansion
test collection
search engine
data retrieval