2492 search results - page 384 / 499 » Ontology-based Database Access |
174
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DPD
1998
15 years 5 months ago
1998
To meet users’ growing needs for accessing pre-existing heterogeneous databases, a multidatabase system (MDBS) integrating multiple databases has attracted many researchers recen...
146
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CIKM
2010
Springer
15 years 4 months ago
2010
Springer
Most database systems allow query processing over attributes that are derived at query runtime (e.g., user-defined functions and remote data calls to web services), making them e...
172
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SIGMOD
2010
ACM
15 years 3 months ago
2010
ACM
Tuning tools attempt to configure a database to achieve optimal performance for a given workload. Selecting an optimal set of physical structures is computationally hard since it ...
263
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ICDE
2007
IEEE
16 years 6 months ago
2007
IEEE
Active Data Warehousing has emerged as an alternative to conventional warehousing practices in order to meet the high demand of applications for up-to-date information. In a nutsh...
261
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ICDE
2003
IEEE
16 years 6 months ago
2003
IEEE
We present a query architecture in which join operators are decomposed into their constituent data structures (State Modules, or SteMs), and dataflow among these SteMs is managed ...