yeah, column normalizarion. for some of the datasets, without doing this, it will not be converged.
Sincerely, DB Tsai ------------------------------------------------------- My Blog: https://www.dbtsai.com LinkedIn: https://www.linkedin.com/in/dbtsai On Fri, Oct 24, 2014 at 3:46 PM, Debasish Das <debasish.da...@gmail.com> wrote: > You mean row/column normalization of data ? how much performance gain you > saw using that ? > > > On Fri, Oct 24, 2014 at 3:14 PM, DB Tsai <dbt...@dbtsai.com> wrote: >> >> oh, we just train the model in the standardized space which will help >> the convergence of LBFGS. Then we convert the weights to original >> space so the whole thing is transparent to users. >> >> Sincerely, >> >> DB Tsai >> ------------------------------------------------------- >> My Blog: https://www.dbtsai.com >> LinkedIn: https://www.linkedin.com/in/dbtsai >> >> >> On Fri, Oct 24, 2014 at 3:13 PM, Debasish Das <debasish.da...@gmail.com> >> wrote: >> > @dbtsai for condition number what did you use ? Diagonal preconditioning >> > of >> > the inverse of B matrix ? But then B matrix keeps on changing...did u >> > condition it after every few iterations ? >> > >> > Will it be possible to put that code in Breeze since it will be very >> > useful >> > to condition other solvers as well... >> > >> > On Fri, Oct 24, 2014 at 3:02 PM, DB Tsai <dbt...@dbtsai.com> wrote: >> >> >> >> We don't have SVMWithLBFGS, but you can check out how we implement >> >> LogisticRegressionWithLBFGS, and we also deal with some condition >> >> number improving stuff in LogisticRegressionWithLBFGS which improves >> >> the performance dramatically. >> >> >> >> Sincerely, >> >> >> >> DB Tsai >> >> ------------------------------------------------------- >> >> My Blog: https://www.dbtsai.com >> >> LinkedIn: https://www.linkedin.com/in/dbtsai >> >> >> >> >> >> On Fri, Oct 24, 2014 at 2:39 PM, k.tham <kevins...@gmail.com> wrote: >> >> > Oh, I've only seen SVMWithSGD, hadn't realized LBFGS was implemented. >> >> > I'll >> >> > try it out when I have time. Thanks! >> >> > >> >> > >> >> > >> >> > -- >> >> > View this message in context: >> >> > >> >> > http://apache-spark-user-list.1001560.n3.nabble.com/Spark-LIBLINEAR-tp5546p17240.html >> >> > Sent from the Apache Spark User List mailing list archive at >> >> > Nabble.com. >> >> > >> >> > --------------------------------------------------------------------- >> >> > To unsubscribe, e-mail: user-unsubscr...@spark.apache.org >> >> > For additional commands, e-mail: user-h...@spark.apache.org >> >> > >> >> >> >> --------------------------------------------------------------------- >> >> To unsubscribe, e-mail: user-unsubscr...@spark.apache.org >> >> For additional commands, e-mail: user-h...@spark.apache.org >> >> >> > > > --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@spark.apache.org For additional commands, e-mail: user-h...@spark.apache.org
