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https://issues.apache.org/jira/browse/SPARK-17459?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15631369#comment-15631369
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Joshua Howard commented on SPARK-17459:
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Got it. Won't touch the fields.
Whenever a committer can get around to it I'd like to participate in bringing
it in.
> Add Linear Discriminant to dimensionality reduction algorithms
> --------------------------------------------------------------
>
> Key: SPARK-17459
> URL: https://issues.apache.org/jira/browse/SPARK-17459
> Project: Spark
> Issue Type: New Feature
> Components: ML
> Reporter: Joshua Howard
> Priority: Minor
>
> The goal is to add linear discriminant analysis as a method of dimensionality
> reduction. The algorithm and code are very similar to PCA, but instead
> project the data set onto vectors that provide class separation. LDA is a
> more effective alternative to PCA in terms of preprocessing for
> classification algorithms.
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