Reference : Predicting biomass and grain protein content using Bayesian methods
Scientific journals : Article
Engineering, computing & technology : Multidisciplinary, general & others
http://hdl.handle.net/2268/179734
Predicting biomass and grain protein content using Bayesian methods
English
Mansouri, Majdi mailto [Université de Liège - ULiège > Sciences et technologie de l'environnement > Agriculture de précision >]
Destain, Marie-France mailto [Université de Liège - ULiège > Sciences et technologie de l'environnement > Agriculture de précision >]
2015
Stochastic Environmental Research and Risk Assessment
Springer Science & Business Media B.V.
Yes (verified by ORBi)
International
1436-3240
1436-3259
[en] Crop model ; Particle filter ; Prediction
[en] This paper deals with the problem of predicting biomass and grain protein content using improved particle filtering (IPF) based on minimizing the Kullback–Leibler divergence. The performances of IPF are compared with those of the conventional particle filtering (PF) in two
comparative studies. In the first one, we apply IPF and PF at a simple dynamic crop model with the aim to predict a single state variable, namely the winter wheat biomass, and to estimate
several model parameters. In the second study, the proposed IPF and the PF are applied to a complex crop model (AZODYN) to predict a winter-wheat quality criterion, namely the grain protein content. The results of both comparative studies reveal that the IPF method provides a better estimation accuracy than the PF method. The benefit of the IPF method lies in its ability to provide accuracy related advantages over the PF method since, unlike the PF which depends on the choice of the sampling distribution used to estimate the posterior distribution, the IPF yields an optimum choice of this sampling distribution, which also utilizes the observed data. The performance of the proposed method is evaluated in terms of estimation accuracy, root mean square error, mean absolute error and execution times.
http://hdl.handle.net/2268/179734
10.1007/s00477-015-1038-0

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Open access
RevisedManuscript.pdfPublisher postprint267.23 kBView/Open

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.