856 search results - page 43 / 172 » Location-based Spatial Queries |
ADC
2003
Springer
14 years 4 months ago
2003
Springer
Selectivity estimation of queries not only provides useful information to the query processing optimization but also may give users a preview of processing results. In this paper,...
IDEAS
2002
IEEE
14 years 3 months ago
2002
IEEE
Based on the recent progress of digital cartography, global positioning systems (GPSs), and hand-held devices, there are growing needs of technology that provides neighborhood inf...
DASFAA
2010
IEEE
14 years 5 months ago
2010
IEEE
Abstract. Besides topological relations and approximate relations, cardinal directions have turned out to be an important class of qualitative spatial relations. In spatial databas...
ICDE
2007
IEEE
15 years 10 days ago
2007
IEEE
Traditional approaches for efficiently processing historical queries, where a history is a multidimensional timeseries, employ a two step filter-and-refine scheme. In the filter s...
ISD
1999
Springer
14 years 3 months ago
1999
Springer
The successful development of any geographic information system project needs the careful design and implementation of spatial databases via conceptual and logical data-modeling. T...