39 search results - page 4 / 8 » Continuous monitoring of top-k queries over sliding windows |
GIS
2007
ACM
14 years 6 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 ...
ICDM
2006
IEEE
13 years 11 months ago
2006
IEEE
Sensor devices are becoming ubiquitous, especially in measurement and monitoring applications. Because of the real-time, append-only and semi-infinite natures of the generated se...
PODS
2003
ACM
14 years 5 months ago
2003
ACM
The sliding window model is useful for discounting stale data in data stream applications. In this model, data elements arrive continually and only the most recent N elements are ...
CIKM
2004
Springer
13 years 10 months 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...
SIGMOD
2005
ACM
14 years 5 months ago
2005
ACM
A defining characteristic of continuous queries over on-line data streams, possibly bounded by sliding windows, is the potentially infinite and time-evolving nature of their input...