CkNN query processing over moving objects with uncertain speeds in road networks

Guohui Li, Yanhong Li, Lih-Chyun Shu, Ping Fan

研究成果: Conference contribution

13 引文 斯高帕斯(Scopus)

摘要

This paper focuses on processing continuous k nearest neighbor queries over objects moving at uncertain speeds (CUkNN) in road networks. We present a novel model to estimate the distances between objects and a query, both of which move at variable speeds in the road network. Based on the proposed distance model, we present a CUkNN query monitoring method to continuously find the objects that could potentially be the k-nearest neighbors (kNN) of the query. We propose an efficient method to calculate the probability of each object being a kNN of a query. The key thing about the method is that the probability of an object being a kNN of query q is shown to be equivalent to the probability of a special line segment being one of the k-nearest lines from q, which greatly simplifies the probability calculation.

原文English
主出版物標題Web Technologies and Applications - 13th Asia-Pacific Web Conference, APWeb 2011, Proceedings
頁面65-76
頁數12
DOIs
出版狀態Published - 2011 四月 28
事件13th Asia-Pacific Conference on Web Technology, APWeb 2011 - Beijing, China
持續時間: 2011 四月 182011 四月 20

出版系列

名字Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
6612 LNCS
ISSN(列印)0302-9743
ISSN(電子)1611-3349

Other

Other13th Asia-Pacific Conference on Web Technology, APWeb 2011
國家/地區China
城市Beijing
期間11-04-1811-04-20

All Science Journal Classification (ASJC) codes

  • 理論電腦科學
  • 電腦科學(全部)

指紋

深入研究「CkNN query processing over moving objects with uncertain speeds in road networks」主題。共同形成了獨特的指紋。

引用此