2675 search results - page 259 / 535 » From Ontology to Relational Databases |
163
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VLDB
1993
ACM
15 years 10 months ago
1993
ACM
Abstract. We show that production rules and persistent queues together provide a convenient mechanism for maintaining consistency in semantically heterogeneous multidatabase enviro...
169
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ICDE
2007
IEEE
16 years 1 months ago
2007
IEEE
Querying semantically related data sources depends on the ability to map between their schemas. Unfortunately, in most cases matching between schema is still largely performed man...
176
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ICDE
2010
IEEE
15 years 4 months ago
2010
IEEE
Abstract-- Classification hierarchies are trees where links codify the fact that a node lower in the hierarchy contains documents whose contents are more specific than those one le...
259
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ICDE
2003
IEEE
16 years 8 months ago
2003
IEEE
We present a valid-time extension of SQL and investigate its efficient implementation on an Object-Relational database system. We propose an approach where temporal queries are ex...
237
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VLDB
2007
ACM
16 years 7 months ago
2007
ACM
This demonstration showcases the STEP system for natural language access to relational databases. In STEP an administrator authors a highly structured semantic grammar through cou...