to break ties an idea would be to select the parameters that lead to lowest variance i.e. not just look at the mean score across folds
my 0.03 euros... Alex On Wed, Mar 14, 2012 at 10:25 PM, David Warde-Farley <[email protected]> wrote: > On Wed, Mar 14, 2012 at 10:08:43PM +0100, Andreas wrote: >> Like Emanuel said, the full grid is already available. >> If someone really cares about their parameter selection, they should >> have a look >> and decide themselves. > > Okay, if the full grid is available then nevermind returning a list. > It would be nice to notify the user that there were ties, somehow, so they'd > know to go looking. > >> I think 'best_estimator' should be chosen in the easiest way possible. >> >> I agree with David, that this should not happen in practice and so I think >> it is of little relevance. I disagree on returning a list, though, >> since that would make the usage a bit more awkward and will >> be of use only in some degenerate cases. >> >> I am a bit against random choice as that would make the >> GridSearch have a random_state, which is a bit unexpected. > > I think randomly breaking ties is a bad idea too. Arbitrarily breaking ties, > however, is fairly normal (first or last one encountered) and quite > forgivable. > >> just my .02 euro > > No fair, that's like $10 USD! :) > > David > > ------------------------------------------------------------------------------ > Virtualization & Cloud Management Using Capacity Planning > Cloud computing makes use of virtualization - but cloud computing > also focuses on allowing computing to be delivered as a service. > http://www.accelacomm.com/jaw/sfnl/114/51521223/ > _______________________________________________ > Scikit-learn-general mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/scikit-learn-general ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ Scikit-learn-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/scikit-learn-general
