165 search results - page 3 / 33 » Incremental Evaluation of Sliding-window Queries over Data S... |
JIIS
2008
13 years 6 months ago
2008
In this paper, we study the incremental update of Frequent Closed Itemsets (FCIs) over a sliding window in a high-speed data stream. We propose the notion of semi-FCIs, which is to...
SSDBM
2003
IEEE
13 years 11 months ago
2003
IEEE
Although traditional databases and data warehouses have been exploited widely to manage persistent data, a large number of applications from sensor network need functional support...
PODC
2006
ACM
14 years 7 days ago
2006
ACM
We study the problem of maintaining sketches of recent elements of a data stream. Motivated by applications involving network data, we consider streams that are asynchronous, in w...
CIKM
2009
Springer
14 years 26 days ago
2009
Springer
We study the problem of continuous monitoring of top-k queries over multiple non-synchronized streams. Assuming a sliding window model, this general problem has been a well addres...
ICDE
2005
IEEE
14 years 7 months ago
2005
IEEE
We consider the problem of efficiently computing the skyline against the most recent N elements in a data stream seen so far. Specifically, we study the n-of-N skyline queries; th...