Sciweavers

148 search results - page 2 / 30
» Distributed Continuous Range Query Processing on Moving Obje...
Sort
View
JSS
2011
114views more  JSS 2011»
12 years 8 months ago
An approach to process continuous location-dependent queries on moving objects with support for location granules
Location-based services have attracted the attention of important research in the field of mobile computing. Specifically, different mechanisms have been proposed to process loc...
Sergio Ilarri, Carlos Bobed, Eduardo Mena
DEXA
2007
Springer
107views Database» more  DEXA 2007»
13 years 9 months ago
When Mobile Objects' Energy Is Not So Tight: A New Perspective on Scalability Issues of Continuous Spatial Query Systems
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...
Tai T. Do, Fuyu Liu, Kien A. Hua
MOBIDE
2005
ACM
13 years 11 months ago
Context-aware optimization of continuous range queries maintenance for trajectories
This work addresses the problem of efficient maintenance of the (correct) answers to the continuous spatio-temporal range queries in Moving Objects Databases (MOD), which represen...
Goce Trajcevski, Hui Ding, Peter Scheuermann
ICDE
2005
IEEE
107views Database» more  ICDE 2005»
14 years 6 months ago
Venn Sampling: A Novel Prediction Technique for Moving Objects
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...
Yufei Tao, Dimitris Papadias, Jian Zhai, Qing Li
MDM
2004
Springer
13 years 10 months ago
Processing Range-Monitoring Queries on Heterogeneous Mobile Objects
We consider in this paper how to leverage heterogeneous mobile computing capability for efficient processing of real-time range-monitoring queries. In our environment, each mobil...
Ying Cai, Kien A. Hua, Guohong Cao