94 search results - page 12 / 19 » Verifying spatial queries using Voronoi neighbors |
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...
ICDE
2008
IEEE
14 years 9 months ago
2008
IEEE
Many applications require finding objects closest to a specified location that contains a set of keywords. For example, online yellow pages allow users to specify an address and a ...
MOBIDE
2010
ACM
13 years 7 months ago
2010
ACM
Traditional location-based services recommend nearest objects to the user by considering their spatial proximity. However, an object not only has its distance but also has its dir...
ICDE
2009
IEEE
14 years 9 months ago
2009
IEEE
The popularity of location-based services and the need to do real-time processing on them has led to an interest in performing queries on transportation networks, such as finding s...
PODS
1989
ACM
13 years 11 months ago
1989
ACM
In this paper we propose the use of fractals and especially the Hilbert curve, in order to design good distance-preserving mappings. Such mappings improve the performance of secon...