115 search results - page 7 / 23 » Adaptable Query Optimization and Evaluation in Temporal Midd... |
161
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ICDE
2008
IEEE
15 years 11 months ago
2008
IEEE
Abstract-- We present COLR-Tree, an abstraction layer designed to support efficient spatio-temporal queries on live data gathered from a large collection of sensors. We use COLR-Tr...
162
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ICDE
2001
IEEE
15 years 11 months ago
2001
IEEE
Semi-join reducers were introduced in the late seventies as a means to reduce the communication costs of distributed database systems. Subsequent work in the eighties showed, howe...
EDBT
2004
ACM
15 years 10 months ago
2004
ACM
Abstract. Non-contiguous subsequence pattern queries search for symbol instances in a long sequence that satisfy some soft temporal constraints. In this paper, we propose a methodo...
SIGMOD
2003
ACM
15 years 10 months ago
2003
ACM
In this paper, we study whether the need for efficient XML publishing brings any new requirements for relational query engines, or if sorting query results in the relational engin...
WLP
2000
Springer
15 years 1 months ago
2000
Springer
In this paper, a dynamic approach to deductive query evaluation is presented which combines the e ects of di erent SIP strategies used for the magic set rewriting technique. Given...