137 search results - page 2 / 28 » Query optimization for ontology-based information integratio... |
SWAP
2007
13 years 5 months ago
2007
Abstract. Recent research showed the benefits of adopting formal ontologies as a means for accessing heterogeneous data sources. The use of an ontology not only provides a uniform...
COOPIS
2002
IEEE
13 years 9 months ago
2002
IEEE
In this paper we propose a mediator architecture for the querying and integration of Web-accessible XML data sources. Our contributions are (i) the definition of a simple but expr...
GEOS
2009
Springer
13 years 9 months ago
2009
Springer
With the specifications defined through the Sensor Web Enablement initiative of the Open Geospatial Consortium, flexible integration of sensor data is becoming a reality. Challe...
APWEB
2005
Springer
13 years 10 months ago
2005
Springer
With the explosive emerged Web services, the Web becomes a world of information and applications. So portals whose goal is presenting a structured view onto the Web should provide ...
IIWAS
2004
13 years 6 months ago
2004
Abstract: To enable efficient access to multimedia content, the media data has to be augmented by semantic metadata and functionality. The semantic representation has to be integra...