176 search results - page 6 / 36 » Active Ontologies for Data Source Queries |
SWAP
2007
13 years 8 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...
FQAS
2009
Springer
14 years 4 days ago
2009
Springer
This paper concerns the design of a workflow which permits to feed and query a data warehouse opened on the Web, driven by a domain ontology. This data warehouse has been built to...
CATA
2003
13 years 9 months ago
2003
The problems of accessing and integrating heterogeneous information sources are becoming centerstage problems. One problem arising from accessing heterogeneous sources is semantic...
DASFAA
2007
IEEE
14 years 1 months ago
2007
IEEE
Abstract. This demonstration presents OntoDB, a prototype that allows to store explicitly in the database not only the data, but also the conceptual model defining the structure o...
DILS
2005
Springer
14 years 1 months ago
2005
Springer
Abstract. We present INDUS (Intelligent Data Understanding System), a federated, query-centric system for knowledge acquisition from autonomous, distributed, semantically heterogen...