124 search results - page 4 / 25 » Concept-based querying in mediator systems |
SIGMOD
1999
ACM
13 years 12 months ago
1999
ACM
Existing data-integration systems based on the mediation architecture employ a variety of mechanisms to describe the query-processing capabilities ofsources. However, these system...
DILS
2005
Springer
14 years 1 months ago
2005
Springer
BioMediator is a data integration system that provides a common interface to multiple Internet-accessible databases containing information about genetics and molecular biology. Ont...
PDIS
1996
IEEE
13 years 11 months ago
1996
IEEE
Users today are struggling to integrate a broad range of information sources providing di erent levels of query capabilities. Currently, data sources with di erent and limitedcapa...
ECAI
2000
Springer
13 years 12 months ago
2000
Springer
In this paper, we study unsatisfiable queries posed to a mediator in an information integration system and expressed in the logical formalism of the information integration system...
GIS
2004
ACM
14 years 8 months ago
2004
ACM
Despite various interoperability recommendations, heterogeneity of Geographic Information Systems (GIS) is still an issue. This led to an increasing need for a data integration sy...