168 search results - page 19 / 34 » Spatiotemporal Compression Techniques for Moving Point Objec... |
SIGMOD
2006
ACM
14 years 7 months ago
2006
ACM
We present our prototype system, OMCAT, which optimizes the reevaluation of a set of pending continuous spatio-temporal queries on trajectory data, when some of the trajectories a...
MDM
2009
Springer
14 years 1 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...
COMPGEOM
2005
ACM
13 years 9 months ago
2005
ACM
We consider the problem of discovering a smooth unknown surface S bounding an object O in R3 . The discovery process consists of moving a point probing device in the free space ar...
ICIP
2007
IEEE
14 years 9 months ago
2007
IEEE
Rotational types of motion can often be seen in video sequences. However, not a lot of research has been done to investigate rotational motion models for use in video. Analysing t...
SIGMOD
2005
ACM
14 years 7 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...