73 search results - page 2 / 15 » Spatial Range Querying for Gaussian-Based Imprecise Query Ob... |
SSD
2007
Springer
13 years 11 months ago
2007
Springer
The ability to continuously monitor the positions of mobile objects is important in many applications. While most past work has been set in Euclidean spaces, the mobile objects rel...
SSD
2009
Springer
13 years 11 months ago
2009
Springer
The range nearest-neighbor (NN) query is an important query type in location-based services, as it can be applied to the case that an NN query has a spatial region, instead of a lo...
PODS
1993
ACM
13 years 9 months 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...
MDM
2010
Springer
13 years 9 months ago
2010
Springer
—Range query processing is an important technology in spatial databases. Current studies mainly focus on range queries in outdoor space based on the Euclidean or network distance...
SSD
2005
Springer
13 years 10 months ago
2005
Springer
We study the problem of answering spatial queries in databases where objects exist with some uncertainty and they are associated with an existential probability. The goal of a thre...