373 search results - page 23 / 75 » Minimum-hot-spot query trees for wireless sensor networks |
GIS
2010
ACM
13 years 5 months ago
2010
ACM
Research on Moving Object Databases (MOD) has resulted in sophisticated query mechanisms for moving objects and regions. Wireless Sensor Networks (WSN) support a wide range of app...
DCOSS
2006
Springer
13 years 11 months ago
2006
Springer
Abstract. We present a comparative mathematical analysis of two important distinct approaches to hybrid push-pull querying in wireless sensor networks: structured hash-based data-c...
ICASSP
2009
IEEE
14 years 2 months ago
2009
IEEE
This work presents a class of unidirectional lifting-based wavelet transforms for an arbitrary communication graph in a wireless sensor network. These transforms are unidirectiona...
ADHOCNOW
2008
Springer
13 years 9 months ago
2008
Springer
This paper presents a novel method for optimizing sliding window based continuous queries. We deal with two categories of aggregation operations: stepwise aggregation (e.g. COUNT) ...
SENSYS
2003
ACM
14 years 1 months ago
2003
ACM
Wireless sensor networks enable dense sensing of the environment, offering unprecedented opportunities for observing the physical world. Centralized data collection and analysis a...