333 search results - page 13 / 67 » Read-Once Functions and Query Evaluation in Probabilistic Da... |
140
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EDBT
2009
ACM
15 years 2 months ago
2009
ACM
Range queries for querying the current and future positions of the moving objects have received growing interests in the research community. Existing methods, however, assume that...
115
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EDBT
2006
ACM
15 years 11 months ago
2006
ACM
In this paper we present a novel approach for estimating the selectivity of XML twig queries. Such a technique is useful for approximate query answering as well as for determining...
90
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PODS
2002
ACM
15 years 11 months ago
2002
ACM
Decision support system users typically submit batches of range-sum queries simultaneously rather than issuing individual, unrelated queries. We propose a wavelet based technique ...
ICDT
2010
ACM
15 years 9 months ago
2010
ACM
Sources of data uncertainty and imprecision are numerous. A way to handle this uncertainty is to associate probabilistic annotations to data. Many such probabilistic database mode...
ICDE
2008
IEEE
15 years 6 months ago
2008
IEEE
— In the context of adaptive query processing (AQP), several techniques have been proposed for dynamically adapting/redistributing processor load assignments throughout a computa...