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https://issues.apache.org/jira/browse/MAHOUT-840?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ikumasa Mukai updated MAHOUT-840:
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Attachment: regression.patch
Hi.
I made a new patch!
> 1. (int) on a double means Math.floor(double). Would it make more sense to
> round up or down?
I think we can (int) because most parts using cast(double->int) are for the
index of the categorical attributes. To make them clear, I added comments on on
every parts.
Would you please tell me your thought about this?
> 2. Leaf.hashCode() needs a matching equals().
> ・The equals() should compare with an epsilon.
> ・clamping to (int) is probably not a very good hash function
I fixed with the way you advised me!
> 3. Please add both a unit test and an example.
I added them!
Regards,
> Decision Forests should support Regression problems
> ---------------------------------------------------
>
> Key: MAHOUT-840
> URL: https://issues.apache.org/jira/browse/MAHOUT-840
> Project: Mahout
> Issue Type: New Feature
> Components: Classification
> Reporter: Deneche A. Hakim
> Assignee: Deneche A. Hakim
> Attachments: regression.patch, regression.patch
>
>
> Improve Decision Forest code in order to handle numerical targets, thus
> supporting regression problems
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