[SciPy-Dev] restarting the discussion about sparse SVD

David Warde-Farley dwf@cs.toronto....
Thu Mar 18 13:55:08 CDT 2010


A friend of mine yesterday was a bit shocked/annoyed when he realized  
there was no way currently in SciPy to compute the SVD of a sparse  
matrix.

This has come up a number of times, so maybe we should organize our  
thoughts and figure out what exactly needs to get done.

- I remember hearing that ARPACK contained a sparse SVD routine but I  
can't seem to find mention of it in the docs.

- It also looks like the code in Divisi ( http:// 
divisi.media.mit.edu ) would be helpful, and looking in the archives   
it looks like the authors may be receptive to relicensing bits of it  
for use in SciPy.

Other thoughts?

David


More information about the SciPy-Dev mailing list