Please use this identifier to cite or link to this item: http://hdl.handle.net/1783.1/2503

Spatio-temporal aggregation using sketches

Authors Tao, Y.
Kollios, G.
Considine, J.
Li, F.
Papadias, D.
Issue Date 2004
Source Proceedings - International Conference on Data Engineering , v. 20, 2004, p. 214-225
Summary Several spatio-temporal applications require the retrieval of summarized information about moving objects that lie in a query region during a query interval (e.g., the number of mobile users covered by a cell, traffic volume in a district, etc.). Existing solutions have the distinct counting problem: if an object remains in the query region for several timestamps during the query interval, it will be counted multiple times in the result. The paper solves this problem by integrating spatio-temporal indexes with sketches, traditionally used for approximate query processing. The proposed techniques can also be applied to reduce the space requirements of conventional spatio-temporal data and to mine spatio-temporal association rules.
Subjects
Rights © 2004 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.
Language English
Format Conference paper
Access View full-text via Scopus
Find@HKUST
Files in this item:
File Description Size Format
papadias6.pdf 165268 B Adobe PDF