When determining the optimal number of synergies, in general, some criteria were applied based on the reconstruction VAF curve. The main criterion is global VAF (VAF_g). Once the VAF is above a predefined threshold, the extracted synergy number is chosen. that's right and understandable. Apart from this criterion, we also require an additional supplementary criterion.
The second usual criterion is incremental VAF (VAF_i). In addition to satisfying the global VAF, according to this criterion when adding an additional synergy to the chosen number, the increase of the VAF should be below a predefined threshold.
what the last sentence means? let's have an example.
EXAMPLE1: VAF_g=90, VAF_i=%5
VAF1=82, VAF2=84, VAF3=91, VAF4=94, and VAF5=97
in this example VAF3=91 ; adding an additional synergy to 3, the increase of the VAF is below %5. Now the optimal number of synergies is 3 or 4 ????
EXAMPLE2: VAF_g=90, VAF_i=%5
VAF1=82, VAF2=84, VAF3=91, VAF4=97, and VAF5=98
in this example VAF3=91 ; adding an additional synergy to 3, the increase of the VAF is above %5. Now the optimal number of synergies is 3 or 4 ????
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