27 search results - page 2 / 6 » Monitoring Aggregate k-NN Objects in Road Networks |
SIGMOD
2005
ACM
14 years 5 months ago
2005
ACM
Given a set of objects P and a query point q, a k nearest neighbor (k-NN) query retrieves the k objects in P that lie closest to q. Even though the problem is well-studied for sta...
DKE
2008
13 years 5 months ago
2008
GIS
2008
ACM
14 years 6 months ago
2008
ACM
In this paper, we consider the following scenario: a set of mobile objects continuously track their positions in a road network and are able to communicate with a central server. ...
MDM
2009
Springer
13 years 12 months ago
2009
Springer
Location monitoring systems are used to detect human activities and provide monitoring services, e.g., aggregate queries. In this paper, we consider an aggregate location monitori...
INFOCOM
2010
IEEE
13 years 3 months ago
2010
IEEE
— Self-monitoring the sensor statuses such as liveness, node density and residue energy is critical for maintaining the normal operation of the sensor network. When building the ...