162 search results - page 19 / 33 » SPARQL query rewriting for implementing data integration ove... |
ESWS
2008
Springer
13 years 9 months ago
2008
Springer
Abstract. The Semantic Web is an effort by the W3C to enable integration and sharing of information across different applications and organizations using annotations by means of on...
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PVLDB
2008
13 years 7 months ago
2008
The old problem of managing the history of database information is now made more urgent and complex by fast spreading web information systems, such as Wikipedia. Our PRIMA system ...
ICDE
2012
IEEE
11 years 10 months ago
2012
IEEE
— Uncertainties in data arise for a number of reasons: when the data set is incomplete, contains conflicting information or has been deliberately perturbed or coarsened to remov...
SSDBM
2008
IEEE
14 years 1 months ago
2008
IEEE
Random sampling is a popular technique for providing fast approximate query answers, especially in data warehouse environments. Compared to other types of synopses, random sampling...
DASFAA
2009
IEEE
13 years 10 months ago
2009
IEEE
—Database security has become a vital issue in modern Web applications. Critical business data in databases is an evident target for attack. Therefore, ensuring the confidentiali...