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https://issues.apache.org/jira/browse/SYSTEMML-1254?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matthias Boehm resolved SYSTEMML-1254.
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Resolution: Done
Fix Version/s: SystemML 0.13
> New simplification rewrites for stratstats
> ------------------------------------------
>
> Key: SYSTEMML-1254
> URL: https://issues.apache.org/jira/browse/SYSTEMML-1254
> Project: SystemML
> Issue Type: Sub-task
> Components: Compiler
> Reporter: Matthias Boehm
> Assignee: Matthias Boehm
> Fix For: SystemML 0.13
>
>
> 1) colSums(X%*%Y) -> colSums(X) %*% Y
> 2) rowSums(X%*%Y) -> X %*% rowSums(Y)
> 3) a=t(X), b=t(X^2) -> a=t(X), b=t(X)^2
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