2724 search results - page 165 / 545 » Optimizing Queries on Files |
133
Voted
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...
126
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FUIN
2006
15 years 3 months ago
2006
In this paper we deal with the problem of finding an optimal query execution plan in database systems. We improve the analysis of a polynomial-time approximation algorithm due to M...
160
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CIDR
2011
14 years 7 months ago
2011
For some problems, human assistance is needed in addition to automated (algorithmic) computation. In sharp contrast to existing data management approaches, where human input is ei...
136
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CORR
2012
Springer
13 years 11 months ago
2012
Springer
We propose a novel mechanism for answering sets of counting queries under differential privacy. Given a workload of counting queries, the mechanism automatically selects a differ...
112
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GEOINFORMATICA
2006
15 years 3 months ago
2006
Existing estimation approaches for spatial databases often rely on the assumption that data distribution in a small region is uniform, which seldom holds in practice. Moreover, the...