373 search results - page 51 / 75 » Querying Priced Information in Databases: The Conjunctive Ca... |
108
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DBPL
1993
Springer
15 years 1 months ago
1993
Springer
In this paper we study the expressive power of query languages for nested bags. We de ne the ambient bag language by generalizing the constructs of the relational language of Brea...
122
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DEXA
2009
Springer
14 years 7 months ago
2009
Springer
Most information retrieval settings, such as web search, are typically precision-oriented, i.e. they focus on retrieving a small number of highly relevant documents. However, in sp...
84
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ISCIS
2009
Springer
15 years 4 months ago
2009
Springer
—With the development of improved and cost-effective technologies, it is now possible to detect thousands of metabolites in biofluids or specific organs, and reliably quantify th...
102
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PODS
2008
ACM
15 years 9 months ago
2008
ACM
We present a novel definition of privacy in the framework of offline (retroactive) database query auditing. Given information about the database, a description of sensitive data, ...
ESWS
2008
Springer
14 years 11 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...