856 search results - page 50 / 172 » Location-based Spatial Queries |
ICMI
2009
Springer
14 years 5 months ago
2009
Springer
Spatial language video retrieval is an important real-world problem that forms a test bed for evaluating semantic structures for natural language descriptions of motion on natural...
SIGMOD
1999
ACM
14 years 3 months ago
1999
ACM
Selectivity estimation of queries is an important and wellstudied problem in relational database systems. In this paper, we examine selectivity estimation in the context of Geogra...
SSD
2009
Springer
14 years 5 months ago
2009
Springer
Abstract. Location-based services (LBS) are receiving increasing popularity as they provide convenience to mobile users with on-demand information. The use of these services, howev...
EDBT
2006
ACM
14 years 11 months ago
2006
ACM
Abstract. Comparison of images requires a distance metric that is sensitive to the spatial location of objects and features. Such sensitive distance measures can, however, be compu...
VLDB
1994
ACM
14 years 3 months ago
1994
ACM
Global clustering has rarely been investigated in the area of spatial database systems although dramatic performance improvements can be achieved by using suitable techniques. In ...