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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HORN-9) Add activations package and ReLU function
Date Mon, 23 Nov 2015 19:09:11 GMT

    [ https://issues.apache.org/jira/browse/HORN-9?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15022770#comment-15022770
] 

ASF GitHub Bot commented on HORN-9:
-----------------------------------

GitHub user ZJaffee opened a pull request:

    https://github.com/apache/incubator-horn/pull/8

    Quick fix from HORN-9

    I noticed another error that was brought in, the derivative of the Sigmoid function is
supposed to be 
    ```
    f(x) = 1.0 / (1 + Math.exp(-x))
    df(x)/dx = f(x)(1-f(x))
    ```
    currently the class has the functions written as 
    ```
    apply(x) = 1.0 / (1 + Math.exp(-x))
    applyDerivative(x) = (x)(1-x)
    ```

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/ZJaffee/incubator-horn master

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/incubator-horn/pull/8.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #8
    
----
commit 99c3f4e8ab393ba19355a280ac141d4827fb7140
Author: Zachary Jaffee <zjaffee@us.ibm.com>
Date:   2015-11-23T19:02:46Z

    Quick fix from HORN-9

----


> Add activations package and ReLU function
> -----------------------------------------
>
>                 Key: HORN-9
>                 URL: https://issues.apache.org/jira/browse/HORN-9
>             Project: Apache Horn
>          Issue Type: New Feature
>            Reporter: Edward J. Yoon
>            Assignee: Edward J. Yoon
>
> Adding activation function implementations.



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