173 search results - page 33 / 35 » Continuous Query Processing of Spatio-temporal Data Streams ... |
DMSN
2009
ACM
14 years 1 months ago
2009
ACM
Generating a good execution plan for a declarative query has long been a central problem in data management research. With the rise in interest in wireless sensor networks (WSNs) ...
CIKM
2004
Springer
14 years 25 days ago
2004
Springer
We explore join optimizations in the presence of both timebased constraints (sliding windows) and value-based constraints (punctuations). We present the first join solution named...
VLDB
2004
ACM
14 years 23 days ago
2004
ACM
We consider the problem of estimating set-expression cardinality in a distributed streaming environment where rapid update streams originating at remote sites are continually tran...
CIDR
2007
13 years 9 months ago
2007
Data management in wireless sensor networks has been an area of significant research in recent years. Many existing sensor data management systems view sensor data as a continuou...
ICDE
2005
IEEE
14 years 8 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...