dncnwtts / clee_fast Goto Github PK
View Code? Open in Web Editor NEWUses scikit-learn to quickly obtain polarized power spectra as function of tau, r, and A_s.
License: MIT License
Uses scikit-learn to quickly obtain polarized power spectra as function of tau, r, and A_s.
License: MIT License
Currently the speed of calling clee-fast is on the order of calling CAMB directly. This is fine if you don't want to use CAMB itself, but the speed increase of 2-5 that I've observed when going from CAMB to clee-fast is untenable for actual likelihood evaluations, especially when for the matrix inversions we are using, the limiting time scale is O(10 ms).
There are a couple of options for interpolation, one is "kriging", there's also simply fitting a polynomial of some order at each point. I would think that scikit-learn has some module for dealing with this exact problem.
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