191 search results - page 17 / 39 » Nondeterministic Queries in a Relational Grid Information Se... |
BDA
2007
13 years 9 months ago
2007
Pervasive information systems give an overview of what digital environments should look like in the future. From a data-centric point of view, traditional databases have to be use...
CCS
2007
ACM
14 years 1 months ago
2007
ACM
In this paper, we study the maintenance of role-based access control (RBAC) models in database environments using transitive closure relations. In particular, the algorithms that ...
MM
2009
ACM
14 years 2 months ago
2009
ACM
In this technical demonstration we show a web video search engine based on ontologies, the Sirio1 system, that has been developed within the EU VidiVideo project. The goal of the ...
ESWA
2002
13 years 7 months ago
2002
A universal agent should be capable of gathering information from arbitrary heterogeneous sites and offer intelligent information services on its own based on information so gathe...
TMM
2002
13 years 7 months ago
2002
Abstract--The Internet provides a universal platform for largescale distribution of information and supports inter-organizational services, system integration, and collaboration. U...