122 search results - page 10 / 25 » Spatial Joins and R-trees |
SIGMOD
2003
ACM
14 years 7 months ago
2003
ACM
Spatial database operations are typically performed in two steps. In the filtering step, indexes and the minimum bounding rectangles (MBRs) of the objects are used to quickly dete...
SIGMOD
2000
ACM
14 years 1 days ago
2000
ACM
We discovered a surprising law governing the spatial join selectivity across two sets of points. An example of such a spatial join is "find the libraries that are within 10 m...
ADBIS
2003
Springer
14 years 28 days ago
2003
Springer
Let a tuple of n objects obeying a query graph (QG) be called the n-tuple. The “Ddistance-value” of this n-tuple is the value of a linear function of distances of the n objects...
ICDE
2006
IEEE
14 years 9 months ago
2006
IEEE
A system that enables real time query processing on large spatial networks is demonstrated. The system provides functionality for processing a wide range of spatial queries such a...
DEXA
2006
Springer
13 years 9 months ago
2006
Springer
Geographic information systems (GIS) must support large georeferenced data sets. Due to the size of these data sets finding exact answers to spatial queries can be very time consum...