How to find the quantitative evaluation of density preservation?

[Jianlan0816]

I read the paper and wondering how to compute the correlation between the log local radii in the original dataset. Could you let me know which file descripts it?

[anashwin]

Hi! If you initialize the densMAP or denSNE Python wrapper with the final_dens=True option, then the output of fit_transform will be a tuple of three numpy arrays. The first is the embedding; the second contains the log local radii of the original dataset; and the third contains the log local radii in the embedding.

You can then calculate the correlation between the second and third arrays to get that correlation.

Let me know if that helps!

[Jianlan0816]

Thanks so much!