3225 search results - page 359 / 645 » Query Optimization by Stored Queries |
189
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EDBT
2006
ACM
15 years 10 months ago
2006
ACM
As data management applications grow more complex, they may need efficient distributed query processing, but also subscription management, data archival etc. To enact such applicat...
190
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GIS
1995
ACM
15 years 10 months ago
1995
ACM
An algorithm is presented to answer window queries in a quadtree-based spatial database environment by retrieving the covering blocks in the underlying spatial database. It works ...
181
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DASFAA
2007
IEEE
15 years 8 months ago
2007
IEEE
As data of an unprecedented scale are becoming accessible, skyline queries have been actively studied lately, to retrieve “interesting” data objects that are not dominated by a...
219
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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...
167
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CORR
2008
Springer
15 years 6 months ago
2008
Springer
We present two general methods for proving lower bounds on the query complexity of nonadaptive quantum algorithms. Both methods are based on the adversary method of Ambainis. We sh...