33 search results - page 1 / 7 » On Trip Planning Queries in Spatial Databases |
SSD
2005
Springer
13 years 10 months ago
2005
Springer
In this paper we discuss a new type of query in Spatial Databases, called the Trip Planning Query (TPQ). Given a set of points of interest P in space, where each point belongs to ...
EDBT
2009
ACM
13 years 11 months ago
2009
ACM
This paper introduces the problem of modeling urban transportation systems in a database where certain aspects of the data are probabilistic in nature. The transportation network ...
SIGMOD
2010
ACM
13 years 5 months ago
2010
ACM
Trajectory search has long been an attractive and challenging topic which blooms various interesting applications in spatial-temporal databases. In this work, we study a new probl...
SSD
2005
Springer
13 years 10 months ago
2005
Springer
Assume that a franchise plans to open k branches in a city, so that the average distance from each residential block to the closest branch is minimized. This is an instance of the ...
SSD
1999
Springer
13 years 9 months ago
1999
Springer
We provide an evaluation of query execution plans (QEP) in the case of queries with one or two spatial joins. The QEPs assume R -tree indexed relations and use a common set of spat...