3456 search results - page 154 / 692 » Semantics in Spatial Databases |
PAKDD
2009
ACM
14 years 3 months ago
2009
ACM
It is a challenging and important task to retrieve images from a large and highly varied image data set based on their visual contents. Problems like how to fill the semantic gap b...
GIS
2008
ACM
14 years 9 months ago
2008
ACM
It has been pointed out repeatedly that spatial operations must be extended to include support for 3D and moving objects. The attempt to code by hand each spatial operation for ea...
TKDE
2002
13 years 8 months ago
2002
Spatial data mining is the discovery of interesting relationships and characteristics that may exist implicitly in spatial databases. To this end, this paper has three main contrib...
CORR
2010
Springer
13 years 8 months ago
2010
Springer
Sub-image search with high accuracy in natural images still remains a challenging problem. This paper proposes a new feature vector called profile for a keypoint in a bag of visual...
CALCO
2007
Springer
14 years 2 months ago
2007
Springer
We motivate and present a logical semantic approach to types for concurrency and to the soundness of related systems. The approach is illustrated by the development of a generic ty...