97 search results - page 18 / 20 » Characterizing Memory Requirements for Queries over Continuo... |
SERVICES
2008
13 years 6 months ago
2008
Distributed stream query services must simultaneously process a large number of complex, continuous queries with stringent performance requirements while utilizing distributed pro...
IDA
2008
Springer
13 years 5 months ago
2008
Springer
We study the problem of finding frequent items in a continuous stream of itemsets. A new frequency measure is introduced, based on a flexible window length. For a given item, its ...
VLDB
2007
ACM
14 years 5 months ago
2007
ACM
Estimating the cardinality (i.e. number of distinct elements) of an arbitrary set expression defined over multiple distributed streams is one of the most fundamental queries of in...
EDBT
2008
ACM
14 years 5 months ago
2008
ACM
Users often do not require a complete answer to their query but rather only a sample. They expect the sample to be either the largest possible or the most representative (or both)...
ICDE
2007
IEEE
14 years 6 months ago
2007
IEEE
The goal of this paper is to monitor numerical streams, and to find subsequences that are similar to a given query sequence, under the DTW (Dynamic Time Warping) distance. Applica...