20878 search results - page 327 / 4176 » Database |
187
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WISE
2003
Springer
15 years 12 months ago
2003
Springer
In this paper, we further develop a proposed layered approach for the Semantic Web. Our objective is to build a specific solution to the problem of providing data interoperability...
168
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DANTE
1999
IEEE
15 years 11 months ago
1999
IEEE
Many current multimedia database management systems perform content-based retrieval of images by extracting the values of various features from every object stored in their system...
114
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VLDB
1990
ACM
15 years 10 months ago
1990
ACM
Remotebackup copies of databasesare often maintained to ensureavailability of dataevenin thepresenceof extensive failures, for which local replication mechanismsmay be inadequate....
170
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CORR
2010
Springer
15 years 6 months ago
2010
Springer
In this paper we present a simple database definition language: that of categories and functors. A database schema is a category and a state is a set-valued functor. We show that m...
159
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DEBU
2007
15 years 6 months ago
2007
Knowing the origin of data (i.e., where the data was copied or created from)—its provenance—is vital for assessing the trustworthiness of contemporary scientific databases su...