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https://issues.apache.org/jira/browse/SOLR-8542?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15555378#comment-15555378
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Michael Nilsson commented on SOLR-8542:
---------------------------------------
Hello everyone! We have just made a push to the [Solr LTR contrib module pull
request|https://github.com/apache/lucene-solr/pull/40] in preparation for
upstreaming into Solr's master branch. We've [made a lot of
changes|https://github.com/bloomberg/lucene-solr/pulls?q=is%3Apr+is%3Aclosed]
since May. We're up to date with the latest master, and ant validate passes.
We fixed ant documentation-lint issues encountered in the contrib module, but
linting stopped in changes.html so there might be some lingering lint issues.
We welcome any comments on the contrib module, and please feel free to take a
look at the
[README|https://github.com/bloomberg/lucene-solr/tree/master-ltr-plugin-develop/solr/contrib/ltr]
to get started. We will also be at this year's [Lucene Solr
Revolution|http://lucenerevolution.org/] if you want to stop by and ask us
anything in person as well!
> Integrate Learning to Rank into Solr
> ------------------------------------
>
> Key: SOLR-8542
> URL: https://issues.apache.org/jira/browse/SOLR-8542
> Project: Solr
> Issue Type: New Feature
> Reporter: Joshua Pantony
> Assignee: Christine Poerschke
> Priority: Minor
> Attachments: SOLR-8542-branch_5x.patch, SOLR-8542-trunk.patch
>
>
> This is a ticket to integrate learning to rank machine learning models into
> Solr. Solr Learning to Rank (LTR) provides a way for you to extract features
> directly inside Solr for use in training a machine learned model. You can
> then deploy that model to Solr and use it to rerank your top X search
> results. This concept was previously [presented by the authors at Lucene/Solr
> Revolution
> 2015|http://www.slideshare.net/lucidworks/learning-to-rank-in-solr-presented-by-michael-nilsson-diego-ceccarelli-bloomberg-lp].
> [Read through the
> README|https://github.com/bloomberg/lucene-solr/tree/master-ltr-plugin-release/solr/contrib/ltr]
> for a tutorial on using the plugin, in addition to how to train your own
> external model.
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