3836 search results - page 301 / 768 » Semantics of Database Transformations |
149
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WWW
2003
ACM
16 years 5 months ago
2003
ACM
The Semantic Web envisions a World Wide Web in which data is described with rich semantics and applications can pose complex queries. To this point, researchers have defined new l...
139
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DEXA
2005
Springer
15 years 10 months ago
2005
Springer
In relational database systems a combination of privileges and views is employed to limit a user’s access and to hide non-public data. The data privacy problem is to decide wheth...
165
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ER
1998
Springer
15 years 9 months ago
1998
Springer
Data warehouses are complex systems that have to deliver highly-aggregated, high quality data from heterogeneous sources to decision makers. Due to the dynamic change in the requir...
161
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DEXA
2006
Springer
15 years 8 months ago
2006
Springer
This paper presents a new framework for users to select relevant data from an XML document and store it in an existing relational database, as opposed to previous approaches that s...
115
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IJIS
2002
15 years 4 months ago
2002
In search of semantic richer and more flexible database modelling and database querying techniques, different approaches based on fuzzy set theory have been developed. Among the m...