[jira] [Updated] (SYSTEMML-1679) Add a new threshold utility function

["Glenn Weidner (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SYSTEMML-1679?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Glenn Weidner updated SYSTEMML-1679:
------------------------------------
    Fix Version/s:     (was: SystemML 1.0)
                   SystemML 0.15

> Add a new threshold utility function
> ------------------------------------
>
>                 Key: SYSTEMML-1679
>                 URL: https://issues.apache.org/jira/browse/SYSTEMML-1679
>             Project: SystemML
>          Issue Type: New Feature
>            Reporter: Mike Dusenberry
>            Assignee: Fei Hu
>             Fix For: SystemML 0.15
>
>
> We should add a new {{threshold}} utility function (in {{nn/util.dml}}) that accepts a matrix {{X}} and a threshold parameter {{thresh}} and returns an indicator matrix {{out}} with values in \{0, 1\} depending on whether or not the values in {{X}} are above {{thresh}}.  We could use this, for example, for determining the predicted class in a binary classification problem given the output of a sigmoid layer.
> We should also add a test case in {{nn/test/test.dml}}.



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