64 search results - page 7 / 13 » Efficient Location Updates for Continuous Queries over Movin... |
COMAD
2008
13 years 9 months ago
2008
Answering aggregate queries like sum, count, min, max over regions containing moving objects is often needed for virtual world applications, real-time monitoring systems, etc. Sin...
SIGMOD
2006
ACM
14 years 7 months ago
2006
ACM
Rapid advancements in positioning systems and wireless communications enable accurate tracking of continuously moving objects. This development poses new challenges to database te...
ICDE
2005
IEEE
14 years 9 months ago
2005
IEEE
Given a region qR and a future timestamp qT, a "range aggregate" query estimates the number of objects expected to appear in qR at time qT. Currently the only methods fo...
DEXA
2008
Springer
13 years 9 months ago
2008
Springer
We address the problem of maintaining continuous skyline queries efficiently over dynamic objects with d dimensions. Skyline queries are an important new search capability for mult...
DASFAA
2007
IEEE
14 years 1 months ago
2007
IEEE
Abstract. Moving object environments are characterized by large numbers of objects continuously sending location updates. At times, data arrival rates may spike up, causing the loa...