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https://issues.apache.org/jira/browse/SYSTEMML-2367?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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LI Guobao closed SYSTEMML-2367.
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> Extend scheme Disjoint_Random
> -----------------------------
>
> Key: SYSTEMML-2367
> URL: https://issues.apache.org/jira/browse/SYSTEMML-2367
> Project: SystemML
> Issue Type: Sub-task
> Reporter: LI Guobao
> Assignee: LI Guobao
> Priority: Major
> Fix For: SystemML 1.2
>
>
> It aims to extend the scheme of data partition.
> * Disjoint_Random: for each worker, use a permutation multiply {{P[beg:end,]
> %*% X}}, where P is constructed for example with
> {{P=table(seq(1,nrow(X)),sample(nrow(X), nrow(X)))}}, i.e., sampling without
> replacement to ensure disjointness
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