146 search results - page 21 / 30 » Medoid Queries in Large Spatial Databases |
SSD
1993
Springer
13 years 11 months ago
1993
Springer
Topological relationships between spatial objects represent important knowledge that users of geographic information systems expect to retrieve from a spatial database. A di cult t...
WEBDB
2007
Springer
14 years 1 months ago
2007
Springer
A large volume of geospatial data is available on the web through various forms of applications. However, access to these data is limited by certain types of queries due to restric...
Publication
Existing location-based services provide specialized services to their customers based on the knowledge of their exact locations. With untrustworthy servers, location-based service...
GEOINFORMATICA
2008
13 years 7 months ago
2008
Topological relationships like overlap, inside, meet, and disjoint uniquely characterize the relative position between objects in space. For a long time, they have been a focus of...
ICDT
1999
ACM
13 years 12 months ago
1999
ACM
A large number of database index structures have been proposed over the last two decades, and little consensus has emerged regarding their relative e ectiveness. In order to empir...