Thanks guys, I have some reading to do :-)
On Mon, Jan 13, 2014 at 10:45 PM, Ted Dunning <ted.dunn...@gmail.com> wrote: > The reference is to the web site in general. > > If anything, this blog is closest: > > http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.177.3514&rep=rep1&type=pdf > > > On Mon, Jan 13, 2014 at 1:14 PM, Suneel Marthi <suneel_mar...@yahoo.com > >wrote: > > > I think this is the one. Yes, I don't see this paper referenced in the > > code sorry about that. > > http://leon.bottou.org/publications/pdf/compstat-2010.pdf > > > > > > > > > > > > > > > > On Monday, January 13, 2014 3:51 PM, Frank Scholten < > > fr...@frankscholten.nl> wrote: > > > > Do you know which paper it is? He has quite a few publications. I don't > see > > any mention of one of his papers in the code. I only see > > www.eecs.tufts.edu/~dsculley/papers/combined-ranking-and-regression.pdfin > > MixedGradient but this is something different. > > > > > > > > > > On Mon, Jan 13, 2014 at 1:27 PM, Suneel Marthi <suneel_mar...@yahoo.com > > >wrote: > > > > > Mahout's impl is based off of Leon Bottou's paper on this subject. I > > > don't gave the link handy but it's referenced in the code or try google > > > search > > > > > > Sent from my iPhone > > > > > > > On Jan 13, 2014, at 7:14 AM, Frank Scholten <fr...@frankscholten.nl> > > > wrote: > > > > > > > > Hi, > > > > > > > > I followed the Coursera Machine Learning course quite a while ago > and I > > > am > > > > trying to find out how Mahout implements the Logistic Regression cost > > > > function in the code surrounding AbstractOnlineLogisticRegression. > > > > > > > > I am looking at the train method in AbstractOnlineLogisticRegression > > and > > > I > > > > see online gradient descent step where the beta matrix is updated but > > to > > > me > > > > its unclear how matches with the cost function described at: > > > > http://www.holehouse.org/mlclass/06_Logistic_Regression.html > > > > > > > > Perhaps Mahout uses an optimized approach for that does not directly > > map > > > > into the formula at that link? > > > > > > > > Cheers, > > > > > > > > Frank > > > > > >
