Title

QR*-Tree: An Adaptive Space-Partitioning Index for Monitoring Moving Objects

DOI

10.6688/JISE.2017.33.2.7

Authors

TIEN-KHOI PHAN;HARIM JUNG;HEE YONG YOUN;UNG-MO KIM

Key Words

moving objects ; location sensing ; location-update stream ; location-based services ; range monitoring queries ; query indexing ; mobile/ubiquitous computing

PublicationName

Journal of Information Science and Engineering

Volume or Term/Year and Month of Publication

33卷2期(2017 / 03 / 01)

Page #

385 - 411

Content Language

英文

Chinese Abstract

A continuous range query over moving objects continually retrieves the moving objects that are currently within a given query region of interest. Most existing approaches assume that moving objects continually communicate with the server to report their current locations and the server updates the results of queries continuously. However, this assumption degrades the system performance because the communication cost and the server workload increase when the number of moving objects and queries becomes huge. The QR-tree is a query indexing structure, which helps the server cooperate with the moving objects efficiently by utilizing the available computational resources of the moving objects to improve the overall system performance. In this paper, we propose a variant of the QR-tree, namely, the QR*-tree, which helps reduce (i) the amount of location- update stream generated from moving object and (ii) the server work load for query evaluation. Through a series of comprehensive simulations, we verify the efficiency of the QR*-tree in terms of the wireless communication cost and the server workload.

Topic Category 基礎與應用科學 > 資訊科學
Times Cited
  1. 菲力普克勞茲(2017)。殖民性交易與性經驗作為生命權力的部署。交通大學社會與文化研究所學位論文。2017。1-204。