8763 search results - page 201 / 1753 » Querying Database Knowledge |
254
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ICDT
1995
ACM
15 years 8 months ago
1995
ACM
Abstract. Extension of the relational database model to represent complex data has been a focus of much research in recent years. At the same time, an alternative extension of the ...
127
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ESWS
2008
Springer
15 years 6 months ago
2008
Springer
The goal of this paper is to give an overview of the basics of the theory of RDF databases. We provide a formal definition of RDF that includes the features that distinguish this m...
137
Voted
DEXAW
1999
IEEE
15 years 8 months ago
1999
IEEE
This work addresses a problem of optimal query processing in heterogeneous and distributed multidatabase systems. The objective is to nd a method for opimization of global query p...
159
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MMSP
2008
IEEE
15 years 11 months ago
2008
IEEE
—Illumination distortion due to uncontrolled lighting can severely degrade the color appearance of a photo. Frequently, the desired colors for objects in a newly taken query imag...
128
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DEBU
2007
15 years 4 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...