176 search results - page 12 / 36 » Active Ontologies for Data Source Queries |
ADBIS
2004
Springer
14 years 29 days ago
2004
Springer
Abstract. Query reformulation techniques based on semantic knowledge have been used in two ways in database management systems, namely for query optimization and for data integrati...
DILS
2005
Springer
14 years 1 months ago
2005
Springer
Publicly available biological resources form a complex maze of highly heterogeneous data sources, interconnected by navigational capabilities and applications. Although it offers ...
DEXAW
2002
IEEE
14 years 15 days ago
2002
IEEE
In the paper we present a methodology for the semiautomated extraction of ontological knowledge from XML data sources in a given domain. We consider an interconnection scenario ov...
SEMWEB
2004
Springer
14 years 27 days ago
2004
Springer
Abstract. This paper describes the design and implementation of Bibster, a Peer-to-Peer system for exchanging bibliographic data among researchers. Bibster exploits ontologies in d...
DAWAK
2005
Springer
14 years 1 months ago
2005
Springer
Extract-Transform-Load (ETL) workflows are data centric workflows responsible for transferring, cleaning, and loading data from their respective sources to the warehouse. Previous ...