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From "Christine Poerschke (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-8542) Integrate Learning to Rank into Solr
Date Wed, 11 Jan 2017 12:47:59 GMT

    [ https://issues.apache.org/jira/browse/SOLR-8542?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15818223#comment-15818223
] 

Christine Poerschke commented on SOLR-8542:
-------------------------------------------

Hi Cassandra and Markus - thanks for your input. ["Result Reranking"|https://cwiki.apache.org/confluence/display/solr/Result+Reranking]
remains very much a tentative name, happy to change it.

How about "Learning To Rank" as a sub-page of the ["Query Re-Ranking"|https://cwiki.apache.org/confluence/display/solr/Query+Re-Ranking]
i.e.

{code}
* Searching
  * ...
  * Query Re-Ranking
    * Learning To Rank
  * Transforming Result Documents
  * ...
  * Result Grouping
  * Result Clustering
  * ...
{code}

instead of the current

{code}
* Searching
  * ...
  * Query Re-Ranking
  * Transforming Result Documents
  * ...
  * Result Grouping
  * Result Clustering
  * ...
  * Result Reranking
{code}

where the tentatively named "Result Reranking" is tentatively a sibling of "Result Grouping"
and "Result Clustering"?
.
Regarding the alternative of "Machine Learned Ranking", how about reserving that for future
use (similar to the ["Parameter Substitution"|https://cwiki.apache.org/confluence/display/solr/Parameter+Substitution]
reservation) e.g. for it to become a "routing page" directing users to the "Learning To Rank"
page, the "Logistic Regression Text Classification" content mentioned in ["Streaming Expressions"|https://cwiki.apache.org/confluence/display/solr/Streaming+Expressions]
and whatever else will come along in future in terms of machine learned ranking?

> 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
>             Fix For: master (7.0), 6.4
>
>         Attachments: SOLR-8542-branch_5x.patch, SOLR-8542-trunk.patch, SOLR-8542.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].
> ----
> Solr Reference Guide documentation:
> * https://cwiki.apache.org/confluence/display/solr/Result+Reranking
> Source code and README files:
> * [solr/contrib/ltr|https://github.com/apache/lucene-solr/blob/master/solr/contrib/ltr]
> * [solr/contrib/ltr/example|https://github.com/apache/lucene-solr/blob/master/solr/contrib/ltr/example]



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