295 search results - page 47 / 59 » Tuning query performance in mobile sensor databases |
177
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SIGMOD
2005
ACM
15 years 9 months ago
2005
ACM
Complex queries over high speed data streams often need to rely on approximations to keep up with their input. The research community has developed a rich literature on approximat...
67
Voted
XIMEP
2005
ACM
15 years 3 months ago
2005
ACM
Building an XML store means finding solutions to the problems of representing, accessing, querying and updating XML data. The irregularity of both the structure and usage of XML, ...
156
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SIGMOD
2009
ACM
15 years 9 months ago
2009
ACM
Uncertain data arises in a number of domains, including data integration and sensor networks. Top-k queries that rank results according to some user-defined score are an important...
IDEAS
2008
IEEE
15 years 3 months ago
2008
IEEE
In this paper we show the usefulness and feasibility of applying conventional SQL queries for analyzing a wide spectrum of data streams. As application area we have chosen the ana...
163
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SIGMOD
2009
ACM
15 years 9 months ago
2009
ACM
We consider the problem of collectively approximating a set of sensor signals using the least amount of space so that any individual signal can be efficiently reconstructed within...