On a Generic Uncertainty Model for Position Information

contributor	Institut für Maschinelle Sprachverarbeitung (IMS)
	Institut für Parallele und Verteilte Systeme, Verteilte Systeme

creator	Lange, Ralph
	Weinschrott, Harald
	Geiger, Lars
	Blessing, Andre
	Dürr, Frank
	Rothermel, Kurt
	Schütze, Hinrich
date	2009-06

description	Position information of moving as well as stationary objects is generally subject to uncertainties due to inherent measuring errors of positioning technologies, explicit tolerances of position update protocols, and approximations by interpolation algorithms. There exist a variety of approaches for specifying these uncertainties by mathematical uncertainty models such as tolerance regions or the Dilution of Precision (DOP) values of GPS. In this paper we propose a principled generic uncertainty model that integrates the different approaches and derive a comprehensive query interface for processing spatial queries on uncertain position information of different sources based on this model. Finally, we show how to implement our approach with prevalent existing uncertainty models.

identifier

language	eng
publisher	University of Stuttgart : Collaborative Research Center SFB 627 (Nexus: World Models for Mobile Context-Based Systems)
	Springer
source	In: Proceedings of the 1st International Workshop on Quality of Context, pp. 1-12
subject	Database Applications (CR H.2.8)
	data uncertainty
	position information
	position accuracy
	spatial queries
title	On a Generic Uncertainty Model for Position Information
type	Text
	Article in Proceedings