315 search results - page 25 / 63 » Runtime Optimization of Continuous Queries |
115
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PODS
2004
ACM
15 years 12 months ago
2004
ACM
Continuous queries in a Data Stream Management System (DSMS) rely on time as a basis for windows on streams and for defining a consistent semantics for multiple streams and updata...
ISPAN
2002
IEEE
15 years 4 months ago
2002
IEEE
Abstract— In this paper, we propose an ontology specification for JavaBean programs, the object component model of Java. Our specification is written using the DAML+OIL languag...
106
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ICDT
2012
ACM
13 years 2 months ago
2012
ACM
The problems of query containment, equivalence, and minimization are recognized as very important in the context of query processing, specifically of query optimization. In their...
173
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ICDE
2000
IEEE
16 years 1 months ago
2000
IEEE
Execution plans produced by traditional query optimizers for data integration queries may yield poor performance for several reasons. The cost estimates may be inaccurate, the mem...
73
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DEXAW
2010
IEEE
15 years 25 days ago
2010
IEEE
Given a set of keywords, we find a maximum Web query (containing the most keywords possible) that respects userdefined bounds on the number of returned hits. We assume a real-world...