303 search results - page 11 / 61 » Supporting spatial aggregation in sensor network databases |
SAC
2009
ACM
14 years 2 months ago
2009
ACM
We present a GPU-based algorithm for computing discretized distance functions on road networks. As applications, we provide algorithms for computing discrete Order-k Network Voron...
SIGMOD
2007
ACM
14 years 7 months ago
2007
ACM
In-network sensor query processing systems (ISQPs), or sensor databases, have been developed to acquire, process and aggregate data from wireless sensor networks (WSNs). Because W...
GIS
2008
ACM
14 years 8 months ago
2008
ACM
By embedding sensors in mobile devices, it is possible to exploit the ubiquitous presence of these devices to construct applications for large-scale sensing and monitoring of envi...
SIGMOD
2005
ACM
14 years 7 months ago
2005
ACM
Existing energy-efficient approaches to in-network aggregation in sensor networks can be classified into two categories, tree-based and multi-path-based, with each having unique s...
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...