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https://issues.apache.org/jira/browse/LUCENE-4345?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14200174#comment-14200174
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Tommaso Teofili commented on LUCENE-4345:
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bq. But I can't find solr/contrib/classification in dev/trunk. Is it not
checked in?
correct, that was not checked in as this only referred to the stuff to go in
Lucene
bq. Is it possible to also check in it to Solr?
this would have to be discussed in a separate (Solr) issue I think, also the
code that I have for that is 2 years old so it'd probably need some cleaning /
refactoring, however that should be easy.
> Create a Classification module
> ------------------------------
>
> Key: LUCENE-4345
> URL: https://issues.apache.org/jira/browse/LUCENE-4345
> Project: Lucene - Core
> Issue Type: New Feature
> Reporter: Tommaso Teofili
> Assignee: Tommaso Teofili
> Priority: Minor
> Fix For: Trunk
>
> Attachments: LUCENE-4345.patch, LUCENE-4345_2.patch, SOLR-3700.patch,
> SOLR-3700_2.patch
>
>
> Lucene/Solr can host huge sets of documents containing lots of information in
> fields so that these can be used as training examples (w/ features) in order
> to very quickly create classifiers algorithms to use on new documents and /
> or to provide an additional service.
> So the idea is to create a contrib module (called 'classification') to host a
> ClassificationComponent that will use already seen data (the indexed
> documents / fields) to classify new documents / text fragments.
> The first version will contain a (simplistic) Lucene based Naive Bayes
> classifier but more implementations should be added in the future.
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