137 search results - page 12 / 28 » Query optimization for ontology-based information integratio... |
ICWE
2005
Springer
15 years 4 months ago
2005
Springer
There is an apparent need for specifying the integration of multiple knowledge sources during the design of Web Information Systems (WIS) where the actual data is often retrieved f...
103
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DKE
2010
14 years 11 months ago
2010
We describe the Consistency Extractor System (ConsEx) that computes consistent answers to Datalog queries with negation posed to relational databases that may be inconsistent with...
111
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JAPLL
2010
14 years 9 months ago
2010
Answering queries over an incomplete database w.r.t. a set of constraints is an important computational task with applications in fields as diverse as information integration and ...
189
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VLDB
2005
ACM
15 years 11 months ago
2005
ACM
The emergence of a large number of bioinformatics datasets on the Internet has resulted in the need for flexible and efficient approaches to integrate information from multiple bio...
103
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ESWS
2008
Springer
15 years 25 days ago
2008
Springer
In this contribution a system is presented, which provides access to distributed data sources using Semantic Web technology. While it was primarily designed for data sharing and sc...