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https://issues.apache.org/jira/browse/MAHOUT-1493?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14060102#comment-14060102
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Christoph Viebig edited comment on MAHOUT-1493 at 7/13/14 1:01 PM:
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As part of an university course homework at TU Berlin, Germany, we (a group of
students) got the task to continue the work done on this issue. To achieve that
we ported Sebastian's code to a recent mahout master revision.
Following changes were applied to Sebastian's patch right now:
- StandardThetaTrainer removed
- trainNB method parameter trainComplementary removed
- method call {{dense}} was changed to
{{org.apache.mahout.math.scalabindings}} method {{dense}}
- method call {{colSums}} was changed to {{new MatrixOps(_).colSums}}
- method call {{rowSums}} was changed to {{new MatrixOps(_).rowSums}}
- {{weightsPerLabelAndFeature(labelIndex, :: ) }} was changed to
{{weightsPerLabelAndFeature.viewRow(labelIndex)}} as it seems to be not
supported by the java class
We noticed that you refactored the code a lot in the mean time. Shall we move
the patch code and the one of the used classes from mrlegacy to another
location?
was (Author: cviebig):
As part of an university course homework at TU Berlin, Germany, we (a group of
students) got the task to continue the work done on this issue. To achieve that
we ported Sebastian's code to a recent mahout master revision.
Following changes were applied:
- StandardThetaTrainer removed
- trainNB method parameter trainComplementary removed
- method call {{dense}} was changed to
{{org.apache.mahout.math.scalabindings}} method {{dense}}
- method call {{colSums}} was changed to {{new MatrixOps(_).colSums}}
- method call {{rowSums}} was changed to {{new MatrixOps(_).rowSums}}
- {{weightsPerLabelAndFeature(labelIndex, :: ) }} was changed to
{{weightsPerLabelAndFeature.viewRow(labelIndex)}} as it seems to be not
supported by the java class
We noticed that you refactored the code a lot in the mean time. Shall we move
the patch code and the one of the used classes from mrlegacy to another
location?
> Port Naive Bayes to the Spark DSL
> ---------------------------------
>
> Key: MAHOUT-1493
> URL: https://issues.apache.org/jira/browse/MAHOUT-1493
> Project: Mahout
> Issue Type: Bug
> Components: Classification
> Reporter: Sebastian Schelter
> Assignee: Sebastian Schelter
> Fix For: 1.0
>
> Attachments: MAHOUT-1493.patch, MAHOUT-1493.patch, MAHOUT-1493.patch,
> MAHOUT-1493.patch
>
>
> Port our Naive Bayes implementation to the new spark dsl. Shouldn't require
> more than a few lines of code.
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