316 search results - page 21 / 64 » Top-K aggregation queries over large networks |
SSDBM
2007
IEEE
15 years 4 months ago
2007
IEEE
In stream join processing with limited memory, uniform random sampling is useful for approximate query evaluation. In this paper, we address the problem of reservoir sampling over...
ISCC
2009
IEEE
15 years 4 months ago
2009
IEEE
Abstract—With the increasing deployment of wireless technologies, such as WLAN, HSDPA, and WiMAX, it is often the case that simultaneous coverage of several access networks is av...
161
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SIGMOD
2008
ACM
15 years 10 months ago
2008
ACM
Today's enterprise databases are large and complex, often relating hundreds of entities. Enabling ordinary users to query such databases and derive value from them has been o...
152
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SIGMOD
2007
ACM
15 years 10 months ago
2007
ACM
This paper describes query processing in the DBO database system. Like other database systems designed for ad-hoc, analytic processing, DBO is able to compute the exact answer to ...
ESA
2010
Springer
14 years 11 months ago
2010
Springer
As sensor networks increase in size and number, efficient techniques are required to process the very large data sets that they generate. Frequently, sensor networks monitor object...