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From Denis Magda <dma...@apache.org>
Subject Re: Add support of distributed matrices for OLS regression. (PR #3030 / IGNITE-5846)
Date Thu, 16 Nov 2017 22:35:02 GMT
Hi Alex,

Impressive, thanks for sharing this with us. Btw, do we need to tweak the existing OLS documentation
to mention the contributed changes? 
https://apacheignite.readme.io/docs/ols-multiple-linear-regression

—
Denis

> On Nov 16, 2017, at 5:55 AM, Alexey Zinoviev <zaleslaw.sin@gmail.com> wrote:
> 
> Hello,
> 
> I've added support of distributed OLS regression per
> IGNITE-5846 [1] and would want to push these to master.
> 
> Changes impact "ml" module, more details of portion of code can be
> found in PR #3030 [2]. Yury Babak [3], Oleg Ignatenko[4] did review and
> sanity
> check.
> 
> The main idea was to keep OLS Regression as algorithm and add support of
> many operations on SparseDistributedMatrix and SparseBlockDistributedMatrix.
> 
> To implement this functionality I added SparseBlockDistributedVector and
> SparseDistributedVector classes. Also a few operations on distributed
> vectors and matrices were implemented using power of affinity.
> 
> The successful build could be found here [5]
> 
> 
> [1]  <goog_1261495998>https://issues.apache.org/jira/browse/IGNITE-5846
> [2]  <goog_1261495993>https://github.com/apache/ignite/pull/3030
> [3] https://github.com/ybabak
> [4] https://github.com/oignatenko
> [5]
> https://ci.ignite.apache.org/viewLog.html?buildId=945536&buildTypeId=Ignite20Tests_IgniteMl&tab=buildResultsDiv
> 
> Sincerely yours,
> Alex


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