Use breeze simplex which inturn uses apache maths simplex...if you want to use interior point method you can use ecos https://github.com/embotech/ecos-java-scala ...spark summit 2014 talk on quadratic solver in matrix factorization will show you example integration with spark. ecos runs as jni process in every executor. On Nov 1, 2015 9:52 AM, "Zhiliang Zhu" <zchl.j...@yahoo.com.invalid> wrote:
> Hi Ted Yu, > > Thanks very much for your kind reply. > Do you just mean that in spark there is no specific package for simplex > method? > > Then I may try to fix it by myself, do not decide whether it is convenient > to finish by spark, before finally fix it. > > Thank you, > Zhiliang > > > > > On Monday, November 2, 2015 1:43 AM, Ted Yu <yuzhih...@gmail.com> wrote: > > > A brief search in code base shows the following: > > TODO: Add simplex constraints to allow alpha in (0,1). > ./mllib/src/main/scala/org/apache/spark/mllib/clustering/LDA.scala > > I guess the answer to your question is no. > > FYI > > On Sun, Nov 1, 2015 at 9:37 AM, Zhiliang Zhu <zchl.j...@yahoo.com.invalid> > wrote: > > Dear All, > > As I am facing some typical linear programming issue, and I know simplex > method is specific in solving LP question, > I am very sorry that whether there is already some mature package in spark > about simplex method... > > Thank you very much~ > Best Wishes! > Zhiliang > > > > > >
