37 search results - page 7 / 8 » Approximate Spatial Query Processing using Raster Signatures |
MOBIHOC
2003
ACM
14 years 5 months ago
2003
ACM
Spatial query execution is an essential functionality of a sensor network, where a query gathers sensor data within a specific geographic region. Redundancy within a sensor networ...
GIS
2009
ACM
14 years 10 days ago
2009
ACM
In this paper, we formalize the novel concept of Constrained Reverse k-Nearest Neighbor (CRkNN) search on mobile objects (clients) performed at a central server. The CRkNN query c...
VLDB
2007
ACM
14 years 5 months ago
2007
ACM
Given a multidimensional point q, a reverse k nearest neighbor (RkNN) query retrieves all the data points that have q as one of their k nearest neighbors. Existing methods for proc...
SIGMOD
2004
ACM
14 years 5 months ago
2004
ACM
Database system architectures are undergoing revolutionary changes. Most importantly, algorithms and data are being unified by integrating programming languages with the database ...
GIS
2010
ACM
13 years 4 months ago
2010
ACM
In this paper we focus on the problem of continuously monitoring the set of Reverse k-Nearest Neighbors (RkNNs) of a query object in a moving object database using a client server...