Articles (page 2)

Mar 19, 2010 8:00 AM The NEF ver. 1.0.2 has been released

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stabilized nefPF algorithm (scaling weights for proper normalization)
added evalLogPDF to nefGaussianRV
replaced the likelihood and transPDF by logLikelihood and logTransPDF in nefEqSystem
added some checks of the noises to nefEqSystem
removed critical bug in PF preventing resampling from being executed in some cases
added optimalized code for additive systems in all derivative free filters
removed bug in nefUDKalman when the prediction was not properly updated for all measurement elements
nefUD completely rewritten and renamed to nefUDKalman
added nefSKalman implementing Square-root Kalman filter
nefItFilter and nefGSM can use any of the local filters

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Initial public release, stabilized API of the new framework.

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method @pmpdf/plot incorporated allowing to plot point-mass pdfs
small changes to the internal and public api of nfFunction and nfSymfunction
- new internal atribute of the function classes mappingDimension and new public property dimension
- nfSymFunction has new public properties firstDerivatives and secondDerivatives containing string representation of first and second partial derivatives
all function classes (including those in examples) has implemented method nfsecpad for evaluation of second partial derivatives
the Second Order Filter is again part of the toolbox
modified API of the Gaussian Sum Filter (gsm) in order to be unambiquous
it is possible to create the instance of gsm class without specifying the maximal number of filtering pdf mixture terms (i.e. the number of terms could grow unrestricted)

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fixed problem with case sensitivity in MATLAB 6.5.x on Windows platform
corrected last minute bug in the nfdiff methods where the variable numberOfVariables was not set

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