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» On Querying Ontologies and Databases
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AAAI
2007
15 years 9 months ago
Approximate Query Answering in Locally Closed Databases
The Closed-World Assumption (CWA) on databases expresses that an atom not in the database is false. A more appropriate assumption for databases that are sound but partially incomp...
Alvaro Cortés-Calabuig, Marc Denecker, Ofer...
ICDE
2007
IEEE
126views Database» more  ICDE 2007»
16 years 8 months ago
QPIAD: Query Processing over Incomplete Autonomous Databases
Incompleteness due to missing attribute values (aka "null values") is very common in autonomous web databases, on which user accesses are usually supported through media...
Hemal Khatri, Jianchun Fan, Yi Chen, Subbarao Kamb...
SIGMOD
2011
ACM
202views Database» more  SIGMOD 2011»
14 years 9 months ago
Sensitivity analysis and explanations for robust query evaluation in probabilistic databases
Probabilistic database systems have successfully established themselves as a tool for managing uncertain data. However, much of the research in this area has focused on efficient...
Bhargav Kanagal, Jian Li, Amol Deshpande
ER
2004
Springer
72views Database» more  ER 2004»
15 years 12 months ago
Ontological Approaches to Enterprise Applications
Dongkyu Kim, Yuan-Chi Chang, Juhnyoung Lee, Sang-g...
OTM
2007
Springer
16 years 21 days ago
Query Expansion and Interpretation to Go Beyond Semantic P2P Interoperability
Abstract. In P2P data management systems, semantic interoperability between any two peers that do not share the same ontology relyes on ontology matching. The established correspon...
Anthony Ventresque, Sylvie Cazalens, Philippe Lama...