265 search results - page 27 / 53 » Universal Trajectory Queries for Moving Object Databases |
ICDE
2010
IEEE
14 years 7 months ago
2010
IEEE
Given a positive value r, a circular range query returns the objects that lie within the distance r of the query location. In this paper, we study the circular range queries that c...
SSD
2001
Springer
14 years 1 days ago
2001
Springer
In dynamic spatio-temporal environments where objects may continuously move in space, maintaining consistent information about the location of objects and processing motion-speciï¬...
EDBT
2010
ACM
14 years 2 months ago
2010
ACM
The wide adaptation of GPS and cellular technologies has created many applications that collect and maintain large repositories of data in the form of trajectories. Previous work ...
EDBT
2011
ACM
12 years 11 months ago
2011
ACM
GPS devices allow recording the movement track of the moving object they are attached to. This data typically consists of a stream of spatio-temporal (x,y,t) points. For applicati...
MDM
2007
Springer
14 years 1 months ago
2007
Springer
This work tackles the problem of answer-aggregation for continuous spatio-temporal range queries in distributed settings. We assume a grid-like coverage of the spatial universe of...