Mathematical model extraction from NARX net?

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Håvard Kråkenes
Håvard Kråkenes 2020-10-1
回答： Raunak Gupta 2020-10-3
I have a NARX net with 15 hidden layers, which has 22 inputs and one output. It is predicting heat rate for the next timestep in a lng engine.
I was wondering if it is possible to extract a mathematical model/equation from this neural network? Either a linear or non-linear model in the form Yk+1 = ....

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回答（1 个）

Raunak Gupta
Raunak Gupta 2020-10-3
Hi,
The mathematical model will be very complicated for 15 hidden layers and that too for Non-linear modelling that is being done in NARX net. Still the mathematical equations are possible to write but will not convey any meaningful information since the equations will be convoluted due to 15 layers’ weight multiplication and a time delay that is involved.

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