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Posted to issues@systemml.apache.org by "Matthias Boehm (JIRA)" <ji...@apache.org> on 2018/01/16 22:35:00 UTC

[jira] [Closed] (SYSTEMML-2058) Incorrect results on sparse-dense, sparse-unsafe unary operations

     [ https://issues.apache.org/jira/browse/SYSTEMML-2058?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matthias Boehm closed SYSTEMML-2058.
------------------------------------
       Resolution: Fixed
         Assignee: Matthias Boehm
    Fix Version/s: SystemML 1.1

> Incorrect results on sparse-dense, sparse-unsafe unary operations
> -----------------------------------------------------------------
>
>                 Key: SYSTEMML-2058
>                 URL: https://issues.apache.org/jira/browse/SYSTEMML-2058
>             Project: SystemML
>          Issue Type: Bug
>            Reporter: Matthias Boehm
>            Assignee: Matthias Boehm
>            Priority: Major
>             Fix For: SystemML 1.1
>
>
> The generalization of NOT to matrices revealed a hidden issue of incorrect results for sparse-dense unary operations. This happens in case of sparse-unsafe operations that produce a zero for each existing non-zero value because this zeros are rejected by the used append functionality.



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