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https://issues.apache.org/jira/browse/MADLIB-1061?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Frank McQuillan updated MADLIB-1061:
------------------------------------
    Description: 
Follow on to
https://issues.apache.org/jira/browse/MADLIB-927
which uses brute force.

Determine other k-NN algos to implement.  From 
http://scikit-learn.org/stable/modules/neighbors.html
candidates are:

* K-D Tree
* Ball Tree
* Other?

This JIRA is to implement K-D tree.


  was:
Follow on to
https://issues.apache.org/jira/browse/MADLIB-927
which uses brute force.

Determine other k-NN algos to implement.  From 
http://scikit-learn.org/stable/modules/neighbors.html
candidates are:

* K-D Tree
* Ball Tree
* Other?

Look at how to implement in a distributed way.  Also may want to revisit 
current brute force approach to see if there are improvements to make on 
parallelism - testing is in serial currently.



> Additional computation methods for k-NN - kd tree
> -------------------------------------------------
>
>                 Key: MADLIB-1061
>                 URL: https://issues.apache.org/jira/browse/MADLIB-1061
>             Project: Apache MADlib
>          Issue Type: New Feature
>          Components: k-NN
>            Reporter: Frank McQuillan
>            Assignee: Orhan Kislal
>            Priority: Major
>              Labels: starter
>             Fix For: v1.16
>
>         Attachments: Sheet1-KNN-perf-num-features.pdf, 
> Sheet2-KNN-tree-construction.pdf, Sheet3-KNN-tree-depth.pdf
>
>
> Follow on to
> https://issues.apache.org/jira/browse/MADLIB-927
> which uses brute force.
> Determine other k-NN algos to implement.  From 
> http://scikit-learn.org/stable/modules/neighbors.html
> candidates are:
> * K-D Tree
> * Ball Tree
> * Other?
> This JIRA is to implement K-D tree.



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