2070 search results - page 213 / 414 » Querying Communities in Relational Databases |
190
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ICDE
2006
IEEE
16 years 1 months ago
2006
IEEE
"Sparse" data, in which relations have many attributes that are null for most tuples, presents a challenge for relational database management systems. If one uses the no...
ICDT
1995
ACM
15 years 3 months ago
1995
ACM
A tuple t1 of relation R subsumes tuple t2 of R, with respect to a query Q if for every database, tuple t1 derives all, and possibly more, answers to query Q than derived by tuple ...
WEBDB
2005
Springer
15 years 5 months ago
2005
Springer
The World Wide Web is a medium for publishing data used by collaborating groups and communities of shared interest. This paper proposes mechanisms to support the accuracy and auth...
102
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BMCBI
2008
14 years 11 months ago
2008
Background: The integration of biomedical information is essential for tackling medical problems. We describe a data model in the domain of flow cytometry (FC) allowing for massiv...
110
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ADC
2003
Springer
15 years 5 months ago
2003
Springer
Selectivity estimation of queries not only provides useful information to the query processing optimization but also may give users a preview of processing results. In this paper,...