39 search results - page 4 / 8 » Join-distinct aggregate estimation over update streams |
GIS
2007
ACM
14 years 9 months ago
2007
ACM
Handling streams of positional updates from numerous moving objects has become a challenging task for many monitoring applications. Several algorithms have been recently proposed ...
GLOBECOM
2006
IEEE
14 years 2 months ago
2006
IEEE
—The current best-effort Internet does not guarantee the bandwidth availability between a receiver and a sender, and so renders any quality-of-service (QoS) control difficult, if...
ICDE
2005
IEEE
14 years 10 months ago
2005
IEEE
Efficient one-pass computation of F0, the number of distinct elements in a data stream, is a fundamental problem arising in various contexts in databases and networking. We consid...
ICDE
2010
IEEE
14 years 8 months ago
2010
IEEE
In today's Internet applications or sensor networks we often encounter large amounts of data spread over many physically distributed nodes. The sheer volume of the data and ba...
PVLDB
2008
13 years 8 months ago
2008
Summaries of massive data sets support approximate query processing over the original data. A basic aggregate over a set of records is the weight of subpopulations specified as a ...