99 search results - page 8 / 20 » Approximate Aggregation Techniques for Sensor Databases |
ICDE
2008
IEEE
14 years 8 months ago
2008
IEEE
In a massive stream of sequential events such as stock feeds, sensor readings, or IP traffic measurements, tuples pertaining to recent events are typically more important than olde...
IPSN
2007
Springer
14 years 1 months ago
2007
Springer
We consider the problem of approximating a family of isocontours in a sensor field with a topologically-equivalent family of simple polygons. Our algorithm is simple and distribu...
ICDE
2008
IEEE
14 years 8 months ago
2008
IEEE
Abstract-- We present COLR-Tree, an abstraction layer designed to support efficient spatio-temporal queries on live data gathered from a large collection of sensors. We use COLR-Tr...
INFOCOM
2010
IEEE
13 years 6 months ago
2010
IEEE
—Upon the occurrence of a phenomenon of interest in a wireless sensor network, multiple sensors may be activated, leading to data implosion and redundancy. Data aggregation and/o...
SIGMOD
2002
ACM
14 years 7 months ago
2002
ACM
Recent years have witnessed an increasing interest in designing algorithms for querying and analyzing streaming data (i.e., data that is seen only once in a fixed order) with only...