1542 search results - page 87 / 309 » Redundancy in Spatial Databases |
ICDE
2000
IEEE
14 years 9 months ago
2000
IEEE
Optimizing queries that involve operations on spatial data requires estimating the selectivity and cost of these operations. In this paper, we focus on estimating the cost of spat...
ICPR
2002
IEEE
14 years 8 months ago
2002
IEEE
Color and color neighborhood statistics have been used extensively in image matching and retrieval. However, the effective incorporation of color layout information remains a chal...
SSD
2009
Springer
14 years 2 months ago
2009
Springer
Abstract. Location-based services (LBS) are receiving increasing popularity as they provide convenience to mobile users with on-demand information. The use of these services, howev...
ICDE
2007
IEEE
14 years 2 months ago
2007
IEEE
With the proliferation of mobile devices (e.g., PDAs, cell phones, etc.), location-based services have become more and more popular in recent years. However, users have to reveal ...
SOFSEM
1998
Springer
13 years 12 months ago
1998
Springer
Abstract. Formal methods based on the mathematical theory of partially ordered sets (i.e., posets) have been used in the database field for the modelling of spatial data since many...