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Query relaxation using malleable schemas.
Xuan Zhou
Julien Gaugaz
Wolf-Tilo Balke
Wolfgang Nejdl
Published in:
SIGMOD Conference (2007)
Keyphrases
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query relaxation
knowledge driven
data integration
query answering
databases
web databases
xml schema
data sources
microarray
xml documents
data exchange
schema mappings
rdf data
approximate answers