47 search results - page 4 / 10 » Convoy Queries in Spatio-Temporal Databases |
VL
1999
IEEE
13 years 10 months ago
1999
IEEE
In this paper we propose a visual interface for the specification of predicates to be used in queries on spatio-temporal databases. The approach is based on a visual specification...
ICDE
2004
IEEE
14 years 7 months ago
2004
IEEE
Several spatio-temporal applications require the retrieval of summarized information about moving objects that lie in a query region during a query interval (e.g., the number of m...
ICDE
2004
IEEE
14 years 7 months ago
2004
IEEE
Moving objects (e.g., vehicles in road networks) continuously generate large amounts of spatio-temporal information in the form of data streams. Efficient management of such strea...
VLDB
2005
ACM
13 years 11 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
2005
IEEE
13 years 12 months ago
2005
IEEE
Sensor networks are an emerging technology that provide new means to monitor and understand various phenomena. Nodes in a sensor network typically have a limited power supply, thu...