2223 search results - page 124 / 445 » Query Optimization in an OODBMS |
152
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ODBIS
2007
Springer
15 years 9 months ago
2007
Springer
Supporting SPARQL queries over relational databases becomes an active topic recently. However, it has not received enough consideration when SPARQL queries include restrictions on...
139
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SIGMOD
2001
ACM
16 years 3 months ago
2001
ACM
We study the problem of generating e cient, equivalent rewritings using views to compute the answer to a query. We take the closed-world assumption, in which views are materialize...
194
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SAS
2001
Springer
15 years 8 months ago
2001
Springer
This paper addresses the following question: Do scalable control-flow-insensitive pointer analyses provide the level of precision required to make them useful in compiler optimiza...
144
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FOCS
2000
IEEE
15 years 8 months ago
2000
IEEE
We consider the planar point location problem from the perspective of expected search time. We are given a planar polygonal subdivision S and for each polygon of the subdivision t...
133
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MDM
2005
Springer
15 years 9 months ago
2005
Springer
In this paper we propose a query-driven approach for tuning the time/energy trade-off in sensor networks with mobile sensors. The tuning factors include re-positioning of mobile s...