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https://issues.apache.org/jira/browse/SOLR-12780?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16647342#comment-16647342
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Kamuela Lau commented on SOLR-12780:
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Thanks [~cpoerschke] for the comment and updated patch!
I had no idea that Math.tanh exists in Java itself; intriguing indeed!
I think that you are right; there are fewer Math.exp calls, and the use of
Math.tanh is also more succinct and easier to understand.
> Add support for Leaky ReLU and TanH activations in LTR contrib module
> ---------------------------------------------------------------------
>
> Key: SOLR-12780
> URL: https://issues.apache.org/jira/browse/SOLR-12780
> Project: Solr
> Issue Type: New Feature
> Security Level: Public(Default Security Level. Issues are Public)
> Components: contrib - LTR
> Reporter: Kamuela Lau
> Priority: Minor
> Labels: ltr
> Attachments: SOLR-12780.patch, SOLR-12780.patch
>
>
> Add support for Leaky ReLU and TanH activation functions in
> NeuralNetworkModel.
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