How does a Polynomial Approximated Function approximate non-polynomial operators? How are the values of f1 and g1 determined? Is there any code to simulate this process?

[yellow123Nike]

How does a Polynomial Approximated Function approximate non-polynomial operators? How are the values of f1 and g1 determined? Is there any code to simulate this process?

[yutation]

Hello,

Thank you for your question.
For the coefficients used in f1 and g1 before training, we use the values provided in the paper.

[yellow123Nike]

is not 《Minimax approximation of sign function by composite polynomial for homomorphic comparison》？

[yutation]

No. Only PAF with alpha=7 uses the coefficients from the paper you mentioned. The settings with f# and g# are from the paper I mentioned in the previous reply.