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Author Topic: Grey Box NN
devil Posted: 07-Dec-10 04:55
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Hi there,

I would like to build up a NN which predicts the conditions of a machine after a certain time period. My idea was to build up kind of a grey box model since some of the functional connections between input and output are know (e.g. linear function between certain input and output parameters), but not their coefficients. For some connections also the direction (input A influences output in a positive way) is known. Up to now I only found grey box models, which are based on dynamic behaviour (Matlab System Identification Toolbox).
Do you know if NN with such a grey box are existing and are there any tools available?

Thanks,
Devil
 
pejman Posted: 08-Dec-10 19:02
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Devil,

I am not sure if I understand your use case correctly, but you may
want to look at Recurrent Networks.
In Matlab look for newelm, newhop or newlrn

Hope that helps.

-Pejman
 

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