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https://issues.apache.org/jira/browse/MADLIB-1293?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16773568#comment-16773568
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Frank McQuillan commented on MADLIB-1293:
-----------------------------------------
https://github.com/apache/madlib/pull/352
> Additional computation methods for k-NN - kd tree v2
> ----------------------------------------------------
>
> Key: MADLIB-1293
> URL: https://issues.apache.org/jira/browse/MADLIB-1293
> Project: Apache MADlib
> Issue Type: New Feature
> Components: k-NN
> Reporter: Frank McQuillan
> Assignee: Orhan Kislal
> Priority: Major
> Labels: starter
> Fix For: v1.16
>
>
> Follow on to
> https://issues.apache.org/jira/browse/MADLIB-1061
> which uses a basic kd-tree implementation at the leaf node level.
> This JIRA is to improve upon the basic K-D tree and add backtracking or other
> methods to increase accuracy. This is an approximate method that will run
> faster than brute-force, ideally for #dims up to 20-30.
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