172 search results - page 20 / 35 » Continuous Medoid Queries over Moving Objects |
WALCOM
2007
IEEE
13 years 9 months ago
2007
IEEE
Abstract. Computing visible information, such as a visible surface determination, is a significant problem and has been mainly studied in the fields of computational geometry and...
SIGMOD
2000
ACM
14 years 29 days ago
2000
ACM
We consider spatio-temporal databases supporting spatial objects with continuously changing position and extent, termed moving objects databases. We formally define a data model f...
VLDB
2004
ACM
14 years 1 months ago
2004
ACM
The emergence of location-aware services calls for new real-time spatio-temporal query processing algorithms that deal with large numbers of mobile objects and queries. In this de...
DEXA
2006
Springer
14 years 8 days ago
2006
Springer
Moving range queries over mobile objects are important in many location management applications. There have been quite a few research works in this area. However, all existing solu...
SIGMOD
2006
ACM
14 years 8 months ago
2006
ACM
We present our prototype system, OMCAT, which optimizes the reevaluation of a set of pending continuous spatio-temporal queries on trajectory data, when some of the trajectories a...