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https://issues.apache.org/jira/browse/SPARK-2335?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14213380#comment-14213380
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Kaushik Ranjan commented on SPARK-2335:
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Hi [~bgawalt], [~yu_ishikawa]
PFA the code for knnJoin
https://github.com/kaushikranjan/knnJoin
It's in accordance to Algorithm1 from the paper cited below
http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5447837&tag=1
Regards,
[~Kaushik619]
[~Rusty]
> k-Nearest Neighbor classification and regression for MLLib
> ----------------------------------------------------------
>
> Key: SPARK-2335
> URL: https://issues.apache.org/jira/browse/SPARK-2335
> Project: Spark
> Issue Type: New Feature
> Components: MLlib
> Reporter: Brian Gawalt
> Priority: Minor
> Labels: features
>
> The k-Nearest Neighbor model for classification and regression problems is a
> simple and intuitive approach, offering a straightforward path to creating
> non-linear decision/estimation contours. It's downsides -- high variance
> (sensitivity to the known training data set) and computational intensity for
> estimating new point labels -- both play to Spark's big data strengths: lots
> of data mitigates data concerns; lots of workers mitigate computational
> latency.
> We should include kNN models as options in MLLib.
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