1196 search results - page 37 / 240 » Keyword Search on Spatial Databases |
ADBIS
2003
Springer
14 years 28 days ago
2003
Springer
Let a tuple of n objects obeying a query graph (QG) be called the n-tuple. The “Ddistance-value” of this n-tuple is the value of a linear function of distances of the n objects...
CORR
2010
Springer
13 years 7 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...
CVPR
1997
IEEE
13 years 12 months ago
1997
IEEE
We describe a new multi-phase, color-based image retrieval system, FOCUS Fast Object Color-based qUery System , with an online user interface which is capable of identifying mult...
GIS
2005
ACM
14 years 8 months ago
2005
ACM
Group nearest neighbor (GNN) queries are a relatively new type of operations in spatial database applications. Different from a traditional kNN query which specifies a single quer...
GEOS
2005
Springer
14 years 1 months ago
2005
Springer
This paper analyses reported difficulties in spatial data retrieval from Internet portals, based on results from an empirical survey. The analysis reveals the problems which cause ...