Reduction and  identification of dynamic models. Simple example: Generic receptor  model

Heikki Haario; Leonid Kalachev; Marko Laine

doi:10.3934/dcdsb.2013.18.417

Article Contents

2013, Volume 18, Issue 2: 417-435. Doi: 10.3934/dcdsb.2013.18.417

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Reduction and identification of dynamic models. Simple example: Generic receptor model

1.
Department of Mathematics and Physics, Lappeenranta University of Technology, P.O.Box 20, FIN-53851 Lappeenranta
2.
32 Campus Drive, Department of Mathematical Sciences, University of Montana, Missoula, MT 59812
3.
Finnish Meteorological Institute, P.O. Box 503, FI-00101 Helsinki

Received: February 28, 2011

Revised: December 31, 2011

Published: February 2013

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Abstract

Identification of biological models is often complicated by the fact that the available experimental data from field measurements is noisy or incomplete. Moreover, models may be complex, and contain a large number of correlated parameters. As a result, the parameters are poorly identified by the data, and the reliability of the model predictions is questionable. We consider a general scheme for reduction and identification of dynamic models using two modern approaches, Markov chain Monte Carlo sampling methods together with asymptotic model reduction techniques. The ideas are illustrated using a simple example related to bio-medical applications: a model of a generic receptor. In this paper we want to point out what the researchers working in biological, medical, etc., fields should look for in order to identify such problematic situations in modelling, and how to overcome these problems.

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Mathematics Subject Classification: 37N25, 34E10, 78M34, 94A20.

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