I'm looking for practical multi-task (multi-response) linear regression code, that can run on dense data, with a few 1000s of samples and 500K to 2M features. Doesn't matter if it's kernel methods, penalized regression, whatever.

I can throw about 40 cores and 512GB RAM at it, as long as doesn't take weeks (taking into account cross-validation and tuning of parameters). I want to get actual results from this, this is not a bakeoff to see which method converges faster on some toy problem ;)

asked Feb 18 '13 at 00:15

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