295 search results - page 34 / 59 » Tuning query performance in mobile sensor databases |
SIGMOD
2010
ACM
14 years 7 months ago
2010
ACM
Tuning tools attempt to configure a database to achieve optimal performance for a given workload. Selecting an optimal set of physical structures is computationally hard since it ...
VLDB
2002
ACM
14 years 9 months ago
2002
ACM
Accurate prediction of operator execution time is a prerequisite for database query optimization. Although extensively studied for conventional disk-based DBMSs, cost modeling in ...
164
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GIS
2007
ACM
15 years 10 months ago
2007
ACM
Continuous spatial queries posted within an environment of moving objects produce as their results a time-varying set of objects. In the most ambitious case both queries and data ...
158
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ICDE
2000
IEEE
15 years 10 months ago
2000
IEEE
In this paper, we study power conservation techniques for multi-attribute queries on wireless data broadcast channels. Indexing data on broadcast channels can improve client filte...
EDBT
2006
ACM
15 years 1 months ago
2006
ACM
Abstract. In wireless data broadcast systems, popular information is repetitively disseminated through possibly multiple communication channels to mobile clients using various type...