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https://issues.apache.org/jira/browse/SPARK-6002?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Owen resolved SPARK-6002.
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Resolution: Won't Fix
> MLLIB should support the RandomIndexing transform
> -------------------------------------------------
>
> Key: SPARK-6002
> URL: https://issues.apache.org/jira/browse/SPARK-6002
> Project: Spark
> Issue Type: Improvement
> Components: MLlib
> Affects Versions: 1.2.1
> Reporter: Derrick Burns
> Original Estimate: 48h
> Remaining Estimate: 48h
>
> MLLIB offers the HashingTF. However, this simple transform offers no
> guarantees on the relationship between the input and the output.
> Instead of the HashingTF, MLLIB should offer Random Indexing
> (http://en.wikipedia.org/wiki/Random_indexing) which does offer such
> guarantees.
> The K-means clusterer at
> https://github.com/derrickburns/generalized-kmeans-clustering includes an
> implementation of the Random Indexing transform.
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