How you compute the second order optimization partial derivatives ?

[jcyk]

Hi, Thanks for open-sourcing your awesome work!

I just got a little confused. In the paper, you mentioned that "This process requires second order optimization partial derivatives, which can be computed by any automatic differentiation library".

However, I did not find any code related to second order derivatives. Am I missing something? could you please kindly point out how you compute the second order derivatives?

[zlinao]

Hi, thanks for the questions.

Yes, you are right. In this repo, we only implement the first-order approximation.

[jcyk]

@zlinao Great! thank you very much for your quick response.