3456 search results - page 110 / 692 » Semantics in Spatial Databases |
IGARSS
2009
13 years 5 months ago
2009
High resolution remote sensing (HR RS) images allow discriminating between different objects in a scene. Spatial reasoning techniques can be used to interpret and describe the sce...
COSIT
2011
Springer
12 years 8 months ago
2011
Springer
Abstract. We propose CLP(QS), a declarative spatial reasoning framework capable of representing and reasoning about high-level, qualitative spatial knowledge about the world. We sy...
CIVR
2005
Springer
14 years 1 months ago
2005
Springer
Automatic image annotation has attracted a lot of attention recently as a method for facilitating semantic indexing and text-based retrieval of visual content. In this paper, we pr...
GIS
2005
ACM
14 years 9 months ago
2005
ACM
Databases of moving objects are important for air traffic control, ground traffic, and battlefield configurations. We introduce the (historical and spatial) range close-pair query...
PODS
1993
ACM
14 years 8 days ago
1993
ACM
In this paper, we motivate four di erent user de ned window query classes and derive a probabilistic model for each of them. For each model, we characterize the e ciency of spatia...