3456 search results - page 34 / 692 » Semantics in Spatial Databases |
GIS
2010
ACM
13 years 6 months ago
2010
ACM
It is cost-effective for data owners to publicize their spatial databases via database outsourcing; however, data privacy and query integrity are major challenges. In this demonst...
SIGMOD
2008
ACM
14 years 8 months ago
2008
ACM
CIKM
1994
Springer
14 years 1 days ago
1994
Springer
In a spatial database, an object may extend arbitrarily in space. As a result, many spatial data structures e.g., the quadtree, the cell tree, the R+-tree represent an object by p...
IEAAIE
2010
Springer
13 years 5 months ago
2010
Springer
This paper details the behavioral evaluation of a qualitative image categorisation and retrieval approach using semantic features of images. Content based image retrieval and class...
AI
2000
Springer
13 years 7 months ago
2000
Springer
This paper reports the new steps undertaken in our work aimed to demonstrate the effectiveness of an omnidirectional vision sensor when conjugated with the Spatial Semantic Hierarc...