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https://issues.apache.org/jira/browse/SPARK-2336?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15882187#comment-15882187
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Nick Pentreath commented on SPARK-2336:
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I think it's safe to say that this now lives in a Spark package (that seems
reasonable actively maintained which is great) so is anyone wants this that is
where to look. I further think it's safe to say this is not going to be
prioritised for MLlib, so shall we close this ticket?
> Approximate k-NN Models for MLLib
> ---------------------------------
>
> Key: SPARK-2336
> URL: https://issues.apache.org/jira/browse/SPARK-2336
> Project: Spark
> Issue Type: New Feature
> Components: MLlib
> Reporter: Brian Gawalt
> Priority: Minor
> Labels: clustering, features
>
> After tackling the general k-Nearest Neighbor model as per
> https://issues.apache.org/jira/browse/SPARK-2335 , there's an opportunity to
> also offer approximate k-Nearest Neighbor. A promising approach would involve
> building a kd-tree variant within from each partition, a la
> http://www.autonlab.org/autonweb/14714.html?branch=1&language=2
> This could offer a simple non-linear ML model that can label new data with
> much lower latency than the plain-vanilla kNN versions.
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