Factorization with uncertainty and missing data

[temuller]

Hi, I would like to apply NMF to a dataset with missing values and uncertainties. I know there exists this package: https://github.com/guangtunbenzhu/NonnegMFPy, but it hasn't been updated in a long time, so I am not sure if I trust it.

Nimfa should be able to do the same, right? However, I don't find anywhere in the documentation this application. Is it actually possible to do this with nimfa? Otherwise, I think I would need to hard code this.

Is it possible to obtain uncertainties for the H and/or W matrices?

Thanks in advanced