265 search results - page 32 / 53 » Logical Queries over Views: Decidability and Expressiveness |
CORR
2008
Springer
14 years 10 months ago
2008
Springer
Abstract. The Ambient Logic (AL) has been proposed for expressing properties of process mobility in the calculus of Mobile Ambients (MA), and as a basis for query languages on semi...
SSDBM
2009
IEEE
15 years 4 months ago
2009
IEEE
We present a novel sensor network query processing architecture that (a) covers all the query optimization phases that are required to map a declarative query to executable code; ...
ICLP
2005
Springer
15 years 3 months ago
2005
Springer
Abstract Description Logics (DLs) are a family of class (concept) based knowledge representation formalisms. They are characterised by the use of various constructors to build comp...
ATAL
2008
Springer
15 years 4 days ago
2008
Springer
A database view is a dynamic virtual table composed of the result set of a query, often executed over different underlying databases. The view maintenance problem concerns how a v...
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SACMAT
2005
ACM
15 years 3 months ago
2005
ACM
We investigate a generalization of the notion of XML security view introduced by Stoica and Farkas [17] and later refined by Fan et al. [8]. The model consists of access control ...