2492 search results - page 70 / 499 » Ontology-based Database Access |
SACMAT
2010
ACM
14 years 3 months ago
2010
ACM
Access to distributed databases containing tuples collected about mobile physical objects requires information about the objects’ trajectories. Existing access control models ca...
ADC
2009
Springer
14 years 5 months ago
2009
Springer
This paper presents a model for privacy preserving access control which is based on variety of purposes. Conditional purpose is applied along with allowed purpose and prohibited p...
DEXAW
2003
IEEE
14 years 3 months ago
2003
IEEE
The Semantic Web, also known as the Web of meaning, is considered the new generation of the Web. Its objective is to enable computers and people to work in cooperation. A requisit...
ADC
2008
Springer
14 years 12 days ago
2008
Springer
Many existing access controls use node filtering or querying rewriting techniques. These techniques require rather time-consuming processes such as parsing, labeling, pruning and/...
TPDS
1998
13 years 10 months ago
1998
—We suggest a method of controlling the access to a secure database via quorum systems. A quorum system is a collection of sets (quorums) every two of which have a nonempty inter...