On Saturday, 25 May 2019 at 14:58:25 UTC, Ola Fosheim Grøstad
wrote:
On Saturday, 25 May 2019 at 12:51:20 UTC, NaN wrote:
I used an evolutionary optimisation algorithm on the table all
at once. So you do a weighted sum of max deviation, and 1st
and 2nd order discontinuity at the joins. And minimise that
across the table as a whole. It seemed you could massively
overweight the discontinuities without really affecting the
curve fitting that much. So perfect joins only cost a little
extra deviation in the fit of the polynomial.
Wow, it is pretty cool that you managed to minimize 2nd order
discontinuity like that! Is there a paper describing the
optimisation algorithm you used?
Its differential evolution, you can pretty much optimise anything
you can quantify.
http://www1.icsi.berkeley.edu/~storn/code.html
