265 search results - page 33 / 53 » Universal Trajectory Queries for Moving Object Databases |
135
Voted
GIS
2010
ACM
15 years 1 months ago
2010
ACM
With the prevalence of GPS-embedded mobile devices, enormous amounts of mobility data are being collected in the form of trajectory - a stream of (x,y,t) points. Such trajectories...
245
Voted
ICDE
2009
IEEE
16 years 4 months ago
2009
IEEE
Abstract-- In sensor environments and moving robot applications, the position of an object is often known imprecisely because of measurement error and/or movement of the object. In...
118
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IDEAS
1997
IEEE
15 years 7 months ago
1997
IEEE
The ROL system is a novel deductive object-oriented database system that has been implemented at the University of Regina. It provides a uniform rule-based declarative language fo...
126
Voted
VLDB
1999
ACM
15 years 7 months ago
1999
ACM
We present an optimization method and algorithm designed for three objectives: physical data independence, semantic optimization, and generalized tableau minimization. The method ...
133
Voted
ISCOPE
1997
Springer
15 years 7 months ago
1997
Springer
This paper describes issues encountered in the design and implementation of a parallel object-oriented database system. In particular, we find that the design of a client/server ...