199 search results - page 6 / 40 » Quete: Ontology-Based Query System for Distributed Sources |
VLDB
2007
ACM
14 years 7 months ago
2007
ACM
This paper focuses on the problem of improving distributed query throughput of the RDBMS-based data integration system that has to inherit the query execution model of the underly...
DEXA
2004
Springer
14 years 28 days ago
2004
Springer
Data integration is a significant challenge: relevant data objects are split across multiple information sources, and often owned by different organizations. The sources represent...
OWLED
2008
13 years 9 months ago
2008
In this paper we present the basic requirements and initial design of a system which manages and facilitates changes to an OWL ontology in a multi-editor environment. This system u...
ESWS
2011
Springer
12 years 11 months ago
2011
Springer
Driven by the success of the Linked Open Data initiative today’s Semantic Web is best characterized as a Web of interlinked datasets. Hand in hand with this structure new challen...
AMAI
2005
Springer
13 years 7 months ago
2005
Springer
Mediator systems integrate distributed, heterogeneous and autonomous data sources, but their e ective use requires the solution of hard query optimization problems. This is usuall...