427 search results - page 11 / 86 » Conjunctive Query Answering in EL using a Database System |
DEXAW
2008
IEEE
13 years 10 months ago
2008
IEEE
With the increasing development of real applications using Semantic Web Technologies, it is necessary to provide scalable and efficient ontology querying and reasoning systems. In ...
ICDE
2008
IEEE
14 years 10 months ago
2008
IEEE
We study the problem of auditing a batch of SQL queries: Given a forbidden view of a database that should have been kept confidential, a batch of queries that were posed over this ...
ESWS
2009
Springer
14 years 3 months ago
2009
Springer
We consider the problem of a user querying semistructured data such as RDF without knowing its structure. In these circumstances, it is helpful if the querying system can perform a...
CIKM
2010
Springer
13 years 7 months ago
2010
Springer
The cost of reachability query computation using traditional algorithms such as depth first search or transitive closure has been found to be prohibitive and unacceptable in mass...
ICDE
2007
IEEE
14 years 10 months ago
2007
IEEE
In recent years there has been a great deal of interest in developing effective techniques for ad-hoc search and retrieval in structured repositories such as relational databases ...