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» Merging Databases Under Constraints
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PODS
1997
ACM
124views Database» more  PODS 1997»
15 years 7 months ago
Languages for Relational Databases over Interpreted Structures
We rework parts of the classical relational theory when the underlying domain is a structure with some interpreted operations that can be used in queries. We identify parts of the...
Michael Benedikt, Leonid Libkin
PODS
2010
ACM
197views Database» more  PODS 2010»
15 years 3 months ago
When data dependencies over SQL tables meet the logics of paradox and S-3
We study functional and multivalued dependencies over SQL tables with NOT NULL constraints. Under a no-information interpretation of null values we develop tools for reasoning. We...
Sven Hartmann, Sebastian Link
COMPUTE
2010
ACM
15 years 7 months ago
Mining periodic-frequent patterns with maximum items' support constraints
The single minimum support (minsup) based frequent pattern mining approaches like Apriori and FP-growth suffer from“rare item problem”while extracting frequent patterns. That...
R. Uday Kiran, P. Krishna Reddy
ICDT
2009
ACM
135views Database» more  ICDT 2009»
15 years 9 months ago
Repair checking in inconsistent databases: algorithms and complexity
Managing inconsistency in databases has long been recognized as an important problem. One of the most promising approaches to coping with inconsistency in databases is the framewo...
Foto N. Afrati, Phokion G. Kolaitis
RIDE
1998
IEEE
15 years 7 months ago
On Periodic Resource Scheduling for Continuous Media Databases
The Enhanced Pay-Per-View (EPPV) model for providing continuous-media services associates with each continuous-media clip a display frequency that depends on the clip's popula...
Minos N. Garofalakis, Banu Özden, Abraham Sil...