7576 search results - page 365 / 1516 » On Querying Ontologies and Databases |
218
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SIGMOD
2011
ACM
14 years 9 months ago
2011
ACM
In this paper we consider the problem of answering queries using views, which is important for data integration, query optimization, and data warehouses. We consider its simplest ...
173
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CIKM
2008
Springer
15 years 8 months ago
2008
Springer
Simple word matching between the user query and document is common, as are mis-matches of meaning that occur as a consequence, and errors in recall. These defects in the "bag...
169
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SEMWEB
2010
Springer
15 years 4 months ago
2010
Springer
Abstract. We extend our recent work on evaluating incomplete reasoners by introducing strict testing bases. We show how they can be used in practice to identify ontologies and quer...
189
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PVLDB
2010
15 years 1 months ago
2010
Database evolution is the process of updating the schema of a database or data warehouse (schema evolution) and evolving the data to the updated schema (data evolution). Database ...
173
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DEXA
2004
Springer
16 years 7 days ago
2004
Springer
Much work has been done on characterizing the workload of a database system. Previous studies focused on providing different types of statistical summaries, and modeling the run-ti...