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From "Fei Hu (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (SYSTEMML-1679) Add a new threshold utility function
Date Fri, 16 Jun 2017 18:36:00 GMT

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

Fei Hu reassigned SYSTEMML-1679:
--------------------------------

    Assignee: Fei Hu  (was: Mike Dusenberry)

> Add a new threshold utility function
> ------------------------------------
>
>                 Key: SYSTEMML-1679
>                 URL: https://issues.apache.org/jira/browse/SYSTEMML-1679
>             Project: SystemML
>          Issue Type: Sub-task
>            Reporter: Mike Dusenberry
>            Assignee: Fei Hu
>
> 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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