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https://issues.apache.org/jira/browse/SYSTEMML-984?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16143059#comment-16143059
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Janardhan commented on SYSTEMML-984:
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Recently, when I am trying to find the literature for implementing scalable 
{{eigen}}, I came across this paper "Parallelization of Principal Component 
Analysis (using Eigen Value Decomposition) on Scalable Multi-core 
Architecture". 

[~niketanpansare] can you please comment on whether we need scalar wrapper, if 
we could find a situation where we can implement PCA scalably with scalable 
{{eigen}}. 

> Add mllearn and scala wrappers for PCA
> --------------------------------------
>
>                 Key: SYSTEMML-984
>                 URL: https://issues.apache.org/jira/browse/SYSTEMML-984
>             Project: SystemML
>          Issue Type: Task
>          Components: APIs
>            Reporter: Niketan Pansare
>              Labels: Hacktoberfest, starter
>
> See 
> https://apache.github.io/incubator-systemml/algorithms-matrix-factorization.html#principle-component-analysis
>  for usage



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