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Improvements to multivariate output emulator #12

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jgomezdans opened this issue Apr 19, 2017 · 1 comment
Open

Improvements to multivariate output emulator #12

jgomezdans opened this issue Apr 19, 2017 · 1 comment
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@jgomezdans
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It would be advantageous to train multi-angle, spectral output emulators with the same basis functions. Basically, the PCA is done in a fairly large number of multi-angle spectra, including a significant amount of ground (LAI=0) spectra. Additionally, we could use the first two basis functions to be the soil, an then add the actual PCA components (so that we have direct access to the soil spectra).

A second thing is that for a multivariate emulator where all individual emulators have the same input training set, the distance metric is the same, so we can re-use this calculation of the K matrix for all emulators

@jgomezdans jgomezdans self-assigned this Apr 19, 2017
@jgomezdans
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I guess that the distance metric calculation would require quite a lot of recalculations, as the hyperparameters are brought right in...

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