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From "Michael McCandless (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-7974) Add N-dimensional FloatPoint K-nearest-neighbor implementation
Date Mon, 02 Oct 2017 14:40:00 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-7974?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16188199#comment-16188199
] 

Michael McCandless commented on LUCENE-7974:
--------------------------------------------

Oh yes that makes sense [~steve_rowe], thanks!

> Add N-dimensional FloatPoint K-nearest-neighbor implementation
> --------------------------------------------------------------
>
>                 Key: LUCENE-7974
>                 URL: https://issues.apache.org/jira/browse/LUCENE-7974
>             Project: Lucene - Core
>          Issue Type: New Feature
>          Components: modules/sandbox
>            Reporter: Steve Rowe
>            Assignee: Steve Rowe
>            Priority: Minor
>             Fix For: 7.1, master (8.0)
>
>         Attachments: LUCENE-7974.patch
>
>
> From LUCENE-7069:
> {quote}
> KD trees (used by Lucene's new dimensional points) excel at finding "nearest neighbors"
to a given query point ... I think we should add this to Lucene's sandbox
> [...]
> It could also be generalized to more than 2 dimensions, but for now I'm making the class
package private in sandbox for just the geo2d (lat/lon) use case.
> {quote}
> This issue is to generalize {{LatLonPoint.nearest()}} to more than 2 dimensions.



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