97 search results - page 7 / 20 » Distributed Island-Based Query Answering for Expressive Onto... |
VLDB
2004
ACM
14 years 1 months ago
2004
ACM
We consider the problem of estimating set-expression cardinality in a distributed streaming environment where rapid update streams originating at remote sites are continually tran...
AAAI
2007
13 years 10 months ago
2007
The use of ontologies in various application domains, such as Data Integration, the Semantic Web, or ontology-based data management, where ontologies provide the access to large a...
FQAS
2009
Springer
14 years 11 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...
COOPIS
2004
IEEE
13 years 11 months ago
2004
IEEE
Semantically heterogeneous and distributed data sources are quite common in several application domains such as bioinformatics and security informatics. In such a setting, each dat...
GIS
2002
ACM
13 years 7 months ago
2002
ACM
The focus of this paper is on interoperability issues to achieve data integration in distributed databases for geographic applications. Our concrete application is in the context ...