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VLDB
1989
ACM
13 years 11 months ago
1989
ACM
Deductive conceptualmodels(DCMs) aim at providing a complete specification of information systems,expressing only its logic component.It hasbeenshownthatDCMs have some advantagesw...
ASIAN
2005
Springer
14 years 1 months ago
2005
Springer
Abstract. Data integrity is an assurance that data has not been modified in an unknown or unauthorized manner. The goal of this paper is to allow a user to leverage a small amount...
IPPS
1999
IEEE
13 years 12 months ago
1999
IEEE
Multidimensional Analysis and On-Line Analytical Processing (OLAP) uses summary information that requires aggregate operations along one or more dimensions of numerical data value...
SSDBM
2009
IEEE
14 years 2 months ago
2009
IEEE
As the size of scientific and commercial datasets grows, it becomes imperative that an expressive metadata framework to be developed to facilitate access to the semantics of the d...
DEXAW
1999
IEEE
13 years 12 months ago
1999
IEEE
Web based systems have been shown to be useful tools for supporting educational communication for teachers and students. In this paper we present such a system, which is an Integr...