Which categories do algorithmic optimizations fall under? For example:

Strassen algorithm for matrix multiplication https://en.wikipedia.org/wiki/Strassen_algorithm

FFT convolution https://dsp.stackexchange.com/a/63211

Winograd convolution https://www.cv-foundation.org/openaccess/content_cvpr_2016/p...

And of course optimization algorithms themselves.

Partial evaluation on the symbolic structure of the problem.