402 search results - page 38 / 81 » Nearest Surrounder Queries |
CIKM
2007
Springer
14 years 1 months ago
2007
Springer
Spatial queries for extracting data from wireless sensor networks are important for many applications, such as environmental monitoring and military surveillance. One such query i...
VLDB
2005
ACM
14 years 1 months ago
2005
ACM
This paper introduces a novel type of query, what we name Spatio-temporal Pattern Queries (STP). Such a query specifies a spatiotemporal pattern as a sequence of distinct spatial...
EDBT
2009
ACM
13 years 11 months ago
2009
ACM
Given a set of n query points in a general metric space, a metricspace skyline (MSS) query asks what are the closest points to all these query points in the database. Here, consid...
ICDE
2005
IEEE
14 years 9 months ago
2005
IEEE
In this paper we introduce the idea of snapshot queries for energy efficient data acquisition in sensor networks. Network nodes generate models of their surrounding environment th...
VLDB
2007
ACM
14 years 8 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...