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From Manish Amde <manish...@gmail.com>
Subject Re: Status of MLLib exporting models to PMML
Date Fri, 14 Nov 2014 06:35:42 GMT
@Aris, we are closely following the PMML work that is going on and as
Xiangrui mentioned, it might be easier to migrate models such as logistic
regression and then migrate trees. Some of the models get fairly large (as
pointed out by Sung Chung) with deep trees as building blocks and we might
have to consider a distributed storage and prediction strategy.


On Tuesday, November 11, 2014, Xiangrui Meng <mengxr@gmail.com> wrote:

> Vincenzo sent a PR and included k-means as an example. Sean is helping
> review it. PMML standard is quite large. So we may start with simple
> model export, like linear methods, then move forward to tree-based.
> -Xiangrui
>
> On Mon, Nov 10, 2014 at 11:27 AM, Aris <arisofalaska@gmail.com
> <javascript:;>> wrote:
> > Hello Spark and MLLib folks,
> >
> > So a common problem in the real world of using machine learning is that
> some
> > data analysis use tools like R, but the more "data engineers" out there
> will
> > use more advanced systems like Spark MLLib or even Python Scikit Learn.
> >
> > In the real world, I want to have "a system" where multiple different
> > modeling environments can learn from data / build models, represent the
> > models in a common language, and then have a layer which just takes the
> > model and run model.predict() all day long -- scores the models in other
> > words.
> >
> > It looks like the project openscoring.io and jpmml-evaluator are some
> > amazing systems for this, but they fundamentally use PMML as the model
> > representation here.
> >
> > I have read some JIRA tickets that Xiangrui Meng is interested in getting
> > PMML implemented to export MLLib models, is that happening? Further,
> would
> > something like Manish Amde's boosted ensemble tree methods be
> representable
> > in PMML?
> >
> > Thank you!!
> > Aris
>
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