556 search results - page 21 / 112 » Evaluation of probabilistic queries in moving objects databa... |
ICDE
2008
IEEE
14 years 8 months ago
2008
IEEE
Existing prediction methods in moving objects databases cannot forecast locations accurately if the query time is far away from the current time. Even for near future prediction, m...
DAGSTUHL
2007
13 years 8 months ago
2007
Abstract. Moving objects produce trajectories, which are stored in databases by means of finite samples of time-stamped locations. When also speed limitations in these sample poin...
GEOINFORMATICA
2006
13 years 6 months ago
2006
With the rapid advancements in positioning technologies such as the Global Positioning System (GPS) and wireless communications, the tracking of continuously moving objects has bec...
DEXA
2007
Springer
13 years 10 months ago
2007
Springer
The two dominant costs in continuous spatial query systems are the wireless communication cost for location update, and the evaluation cost for query processing. Existing works add...
ICDE
2005
IEEE
14 years 8 months ago
2005
IEEE
Index structures are designed to optimize search performance, while at the same time supporting efficient data updates. Although not explicit, existing index structures are typica...