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https://issues.apache.org/jira/browse/SOLR-11943?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16607639#comment-16607639
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Steve Rowe commented on SOLR-11943:
-----------------------------------
Under Maven, compilation was failing due to this issue causing the solr-core
module to start using commons-math3 classes in a compile scope, while declaring
it as test scope in the ivy.xml.
This didn’t cause a problem for the Ant build, since all Solrj’s compile-scope
dependencies are included in solr-core’s compilation classpath. The Maven
build was affected because the POMs are automatically generated from the Ant
build’s *direct* classpaths.
I fixed the problem by switching the scope of the solr-core commons-math3
dependency from test to compile scope in solr-core’s ivy.xml, so that the Maven
POMs would be correctly generated.
> Add machine learning functions for location data
> ------------------------------------------------
>
> Key: SOLR-11943
> URL: https://issues.apache.org/jira/browse/SOLR-11943
> Project: Solr
> Issue Type: New Feature
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Joel Bernstein
> Assignee: Joel Bernstein
> Priority: Major
> Fix For: master (8.0), 7.5
>
> Attachments: SOLR-11943.patch
>
>
> This ticket will add the following functions / features:
> 1) *latlonVectors* function: Reads a list of tuples that contain a *location*
> field type of lat, lon pairs and returns a *matrix* of lat,lon vectors.
> 2) Add support for *haversinMeters* distance measure.
> With the addition of these two functions we'll have the ability to do various
> distance based machine learning algorithms (distance matrices, clustering,
> knn regression etc...) with location data.
>
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