2043 search results - page 240 / 409 » The Limits of Querying Ontologies |
182
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SIGMOD
1997
ACM
15 years 10 months ago
1997
ACM
Data warehouses store materialized views over base data from external sources. Clients typically perform complex read-only queries on the views. The views are refreshed periodical...
180
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COOPIS
2004
IEEE
15 years 10 months ago
2004
IEEE
Querying and integrating sources of structured data from the Web in most cases requires similarity-based concepts to deal with data level conflicts. This is due to the often errone...
199
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DGCI
2000
Springer
15 years 10 months ago
2000
Springer
We consider the problem of finding the best match for a given query shape among candidate shapes stored in a shape base. This is central to a wide range of applications, such as, d...
217
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OWLED
2008
15 years 8 months ago
2008
Abstract. We present Owlgres, a DL-Lite reasoner implementation written for PostgreSQL, a mature open source database. Owlgres is an OWL reasoner that provides consistency checking...
175
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SYRCODIS
2008
15 years 8 months ago
2008
Several native approaches to storing large XML data sets exist. In all of these approaches the internal data representation is designed to support any ad-hoc XQuery query. In this...