On Wed, Mar 21, 2012 at 06:42:36PM +0100, Alexandre Gramfort wrote:
> > In short, I think it could be interesting to implement the scout method too:
> > "We show that ridge regression, the lasso, and the elastic net are
> > special cases of covariance-regularized regression"
> > http://www-stat.stanford.edu/~tibs/ftp/WittenTibshirani2008.pdf

> being more general is neat but the price you might have to pay is less
> efficiency for the simpler problems.

That's my gut feeling too. I'd prefer a really fast solver for l1 and l2
penalized regression with the standard losses (square, hinge and
logistic), in the case n >> p. They are different papers mentioning
techniques for that.

My 2 cents,

Gael

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