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ICDE
2012
IEEE
11 years 8 months ago
2012
IEEE
— Uncertainties in data arise for a number of reasons: when the data set is incomplete, contains conflicting information or has been deliberately perturbed or coarsened to remov...
ER
2007
Springer
14 years 7 days ago
2007
Springer
XML Schema supports the specification of occurrence constraints by declaring values for its min/maxOccurs attributes. These constraints are structural in the sense that they rest...
ICDT
2001
ACM
13 years 10 months ago
2001
ACM
In fast OLAP applications it is often advantageous to provide approximate answers to range queries in order to achieve very high performances. A possible solution is to inquire sum...
VLDB
2000
ACM
13 years 9 months ago
2000
ACM
Strict consistency of replicated data is infeasible or not required by many distributed applications, so current systems often permit stale replication, in which cached copies of ...
EDBT
2009
ACM
13 years 10 months ago
2009
ACM
We investigate the problem of refining SQL queries to satisfy cardinality constraints on the query result. This has applications to the many/few answers problems often faced by da...