4113 search results - page 245 / 823 » Watermarking Relational Databases |
139
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GIS
2002
ACM
15 years 4 months ago
2002
ACM
The focus of this paper is on interoperability issues to achieve data integration in distributed databases for geographic applications. Our concrete application is in the context ...
229
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ICDE
2007
IEEE
16 years 5 months ago
2007
IEEE
In this demo we present X-Time, a prototype for managing schema versioning in relational data warehouses, specifically oriented to support the formulation of crossversion queries,...
VLDB
2007
ACM
15 years 10 months ago
2007
ACM
A relational ranking query uses a scoring function to limit the results of a conventional query to a small number of the most relevant answers. The increasing popularity of this q...
132
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VLDB
1987
ACM
15 years 8 months ago
1987
ACM
A Datalog program can be translated into a system of fixpoint equations of relational algebra; this paper studies how such a system can be solved and optimized for a particular qu...
124
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EUSFLAT
2003
15 years 5 months ago
2003
This paper deals with a problem of multicriteria selection assuming uncertainties including linguistic modifiers both in given data and in queries referring to these data. An app...