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Proceedings Paper

An improved trajectory query on moving objects in a spatio-temporal database
Author(s): Jing Tang; Tao Liu
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Paper Abstract

The ideal spatio-temporal database not only has the normal functions essential to every spatial database, but also has the ability for keeping track of dynamic data changing with time. Some analyses based on spatio-temporal database, such as spatial network analyses based on different timestamps, should firstly do efficient querying work. With the convenience and improvement in tracking of moving objects, trajectroy can be easily recorded and many novel services have been proposed. So we should provide an efficient technique to finish trajectroy query on moving objects. In this paper, we focus on improving the existing trajectory query. Firstly, this paper states the current research approaches of dynamic query in spatio-temporal database. Secondly, it gives a classification of current query methods and a description of the trajectory representation. Based on the foregoing groundworks, we propose our improved methods and give an example to set forth the advantage of the method in details. Finally, we look ahead and propose a new vista of research in this area.

Paper Details

Date Published: 15 October 2009
PDF: 10 pages
Proc. SPIE 7492, International Symposium on Spatial Analysis, Spatial-Temporal Data Modeling, and Data Mining, 749230 (15 October 2009); doi: 10.1117/12.838061
Show Author Affiliations
Jing Tang, Wuhan Univ. (China)
Tao Liu, Wuhan Univ. (China)

Published in SPIE Proceedings Vol. 7492:
International Symposium on Spatial Analysis, Spatial-Temporal Data Modeling, and Data Mining
Yaolin Liu; Xinming Tang, Editor(s)

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