91 search results - page 5 / 19 » Optimizing Moving Queries over Moving Object Data Streams |
SAC
2008
ACM
13 years 8 months ago
2008
ACM
We address aggregate queries over GIS data and moving object data, where non-spatial information is stored in a data warehouse. We propose a formal data model and query language t...
WISES
2003
13 years 10 months ago
2003
The purpose of our on going research would be to track entities, which enter their field of vision over the sensor network. Based on their sightings, they maintain a dynamic cache ...
GEOINFORMATICA
2007
13 years 8 months ago
2007
Nearest Neighbor (NN) search has been in the core of spatial and spatiotemporal database research during the last decade. The literature on NN query processing algorithms so far d...
ADBIS
2009
Springer
14 years 3 months ago
2009
Springer
Abstract. In moving object databases, many authors assume that number and position of objects to be processed are always known in advance. Detecting an unknown moving object and pu...
CSE
2009
IEEE
14 years 1 months ago
2009
IEEE
— The ubiquity of mobile devices has led to a rising demand for location-based services and applications. A major part of these services is based on the location-detection capabi...