39 search results - page 4 / 8 » Capturing Uncertainty in Spatial Queries over Imprecise Data |
ICDE
2008
IEEE
14 years 8 months ago
2008
IEEE
Probabilistic data have recently become popular in applications such as scientific and geospatial databases. For images and other spatial datasets, probabilistic values can capture...
PVLDB
2010
13 years 5 months ago
2010
The location-aware keyword query returns ranked objects that are near a query location and that have textual descriptions that match query keywords. This query occurs inherently i...
DEXAW
2000
IEEE
13 years 12 months ago
2000
IEEE
Current models for cardinal directions, such as north and northeast, are either point-based or region-based, but no models exist that apply equally, independent of the geometric d...
ICDE
2000
IEEE
14 years 8 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...
TKDE
2008
13 years 7 months ago
2008
The importance of query processing over uncertain data has recently arisen due to its wide usage in many real-world applications. In the context of uncertain databases, previous wo...