Integrating OpenMI and Uncertweb:managing uncertainty in OpenMI models

Gupta, Tushar, Jones, Richard, Bastin, Lucy and Cornford, Dan (2012). Integrating OpenMI and Uncertweb:managing uncertainty in OpenMI models. IN: International Environmental Modelling and Software Society (iEMSs) 2012 International Congress on Environmental Modelling and Software. Managing Resources of a Limited Planet: Pathways and Visions under Uncertainty, sixth biennial meeting, Leipzig, German. Seppelt, Ralf; Voinov, Alexey A.; Lange, Susanne and Bankamp, Dagmar (eds) Manno (CH): International Environmental Modelling and Software Society.

Abstract

OpenMI is a widely used standard allowing exchange of data between integrated models, which has mostly been applied to dynamic, deterministic models. Within the FP7 UncertWeb project we are developing mechanisms and tools to support the management of uncertainty in environmental models. In this paper we explore the integration of the UncertWeb framework with OpenMI, to assess the issues that arise when propagating uncertainty in OpenMI model compositions, and the degree of integration possible with UncertWeb tools. In particular we develop an uncertainty-enabled model for a simple Lotka-Volterra system with an interface conforming to the OpenMI standard, exploring uncertainty in the initial predator and prey levels, and the parameters of the model equations. We use the Elicitator tool developed within UncertWeb to identify the initial condition uncertainties, and show how these can be integrated, using UncertML, with simple Monte Carlo propagation mechanisms. The mediators we develop for OpenMI models are generic and produce standard Web services that expose the OpenMI models to a Web based framework. We discuss what further work is needed to allow a more complete system to be developed and show how this might be used practically.

Divisions: Engineering & Applied Sciences > Computer Science
Engineering & Applied Sciences > Sustainable environment research group
Engineering & Applied Sciences > Systems analytics research institute (SARI)
Additional Information: The copyright of all papers is an exclusive right of the authors. No work can be reproduced without written permission of the authors.
Event Title: 6th biennial meeting of the International Environmental Modelling and Software Society
Event Type: Other
Event Dates: 2012-07-01 - 2012-07-05
Uncontrolled Keywords: models,OpenMI,uncertainty,visualisation,web services,Software,Environmental Engineering
Full Text Link: http://www.iems ... astin_et_al.pdf
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
Published Date: 2012-12-06
Authors: Gupta, Tushar
Jones, Richard
Bastin, Lucy ( 0000-0003-1321-0800)
Cornford, Dan ( 0000-0001-8787-6758)

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