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Semantic trajectory compression


Schmid, F; Richter, K F; Laube, P (2009). Semantic trajectory compression. In: Mamoulis, N; et al. Advances in spatial and temporal databases. Berlin: Springer, 411-416.

Abstract

In the light of rapidly growing repositories capturing the
movement tra jectories of people in spacetime, the need for tra jectory compression becomes obvious. This paper argues for semantic trajectory compression (STC) as a means of substantially compressing the movement trajectories in an urban environment with acceptable information loss. STC exploits that human urban movement and its large–scale use
(LBS, navigation) is embedded in some geographic context, typically defined by transportation networks. STC achieves its compression rate by replacing raw, highly redundant position information from, for example, GPS sensors with a semantic representation of the tra jectory consisting
of a sequence of events. The paper explains the underlying principles of STC and presents an example use case.

Abstract

In the light of rapidly growing repositories capturing the
movement tra jectories of people in spacetime, the need for tra jectory compression becomes obvious. This paper argues for semantic trajectory compression (STC) as a means of substantially compressing the movement trajectories in an urban environment with acceptable information loss. STC exploits that human urban movement and its large–scale use
(LBS, navigation) is embedded in some geographic context, typically defined by transportation networks. STC achieves its compression rate by replacing raw, highly redundant position information from, for example, GPS sensors with a semantic representation of the tra jectory consisting
of a sequence of events. The paper explains the underlying principles of STC and presents an example use case.

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Additional indexing

Item Type:Book Section, refereed, original work
Communities & Collections:07 Faculty of Science > Institute of Geography
Dewey Decimal Classification:910 Geography & travel
Language:English
Date:2009
Deposited On:23 Jan 2010 17:06
Last Modified:06 Dec 2017 22:44
Publisher:Springer
Series Name:Lecture Notes in Computer Science
Number:5644
ISSN:0302-9743 (P) 1611-3349 (E)
ISBN:978-3-642-02981-3
Additional Information:Proceedings of the 11th international symposium, SSTD 2009, Aalborg, Denmark, July 8-10, 2009. - The original publication is available at www.springerlink.com
Publisher DOI:https://doi.org/10.1007/978-3-642-02982-0_30

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