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From "Peter Szantai-Kis (JIRA)" <>
Subject [jira] [Commented] (LUCENE-7974) Add N-dimensional FloatPoint K-nearest-neighbor implementation
Date Mon, 02 Oct 2017 11:20:00 GMT


Peter Szantai-Kis commented on LUCENE-7974:

Hi [~steve_rowe],

"ant precommit" build seems to be failing for me on a -document-lint step. 
The line that seems suspicious: [|;a=blob;f=lucene/sandbox/src/java/org/apache/lucene/document/;h=d3360a838c9733bc41ab30e37e55b1cfddf5509a;hb=d52564c#l206]

{code:title=failure message}
     [echo] checking for broken html...
    [jtidy] Checking for broken html (such as invalid tags)...
   [delete] Deleting directory ~/dev/src/lucene-solr/lucene/build/jtidy_tmp
     [echo] Checking for broken links...
     [exec] Crawl/parse...
     [exec] Verify...
     [exec] file:///build/docs/sandbox/org/apache/lucene/document/FloatPointNearestNeighbor.html
     [exec]   BROKEN LINK: file:///build/docs/core/org/apache/lucene/document/FloatPointNearestNeighbor.NearestHit.html
     [exec]   BROKEN LINK: file:///build/docs/core/org/apache/lucene/document/FloatPointNearestNeighbor.NearestHit.html
     [exec] Broken javadocs links were found! Common root causes:
     [exec] * A typo of some sort for manually created links.
     [exec] * Public methods referencing non-public classes in their signature.


> Add N-dimensional FloatPoint K-nearest-neighbor implementation
> --------------------------------------------------------------
>                 Key: LUCENE-7974
>                 URL:
>             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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