How to determine over-fitting from non linear least square optimization tool?
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I have developed a non-linear equation. It has 4 parameters to be optimized. I have trained the function with 10 experimental data using non-linear least square error optimization method. How can I determine whether my fitting is over-fitting or normal fitting?
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Alan Weiss
il 8 Gen 2018
One typical way to do this is by cross-validation, which means fitting a subset of the data and then checking the resulting error against the remaining data for multiple subsets of the data. See, for example, Optimize a Cross-Validated SVM Classifier Using Bayesian Optimization or examples in the crossval function reference page.
Alan Weiss
MATLAB mathematical toolbox documentation
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