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https://issues.apache.org/jira/browse/SOLR-69?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ryan McKinley updated SOLR-69:
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Attachment: SOLR-69-MoreLikeThisRequestHandler.patch
Updating with a bunch of minor changes...
1. Got rid of the "exclude" parameter and it is now using standard fq filters
2. If only one field is specified, it uses the fields analizyer as Ken
suggested in:
http://www.nabble.com/MoreLikeThis-and-term-vectors---documentation-suggestion-tf3295459.html#a9188723
3. set termVectors="true" for 'cat' in the example solrconfig.xml and added a
comment describing 'termVectors'
4. Added standard debug info
5. Fixed 'score' issue -- it was squaking because the original match did not
have a score field...
> PATCH:MoreLikeThis support
> --------------------------
>
> Key: SOLR-69
> URL: https://issues.apache.org/jira/browse/SOLR-69
> Project: Solr
> Issue Type: Improvement
> Components: search
> Reporter: Bertrand Delacretaz
> Priority: Minor
> Attachments: lucene-queries-2.0.0.jar, lucene-queries-2.1.1-dev.jar,
> SOLR-69-MoreLikeThisRequestHandler.patch,
> SOLR-69-MoreLikeThisRequestHandler.patch,
> SOLR-69-MoreLikeThisRequestHandler.patch, SOLR-69.patch, SOLR-69.patch,
> SOLR-69.patch, SOLR-69.patch
>
>
> Here's a patch that implements simple support of Lucene's MoreLikeThis class.
> The MoreLikeThisHelper code is heavily based on (hmm..."lifted from" might be
> more appropriate ;-) Erik Hatcher's example mentioned in
> http://www.mail-archive.com/[EMAIL PROTECTED]/msg00878.html
> To use it, add at least the following parameters to a standard or dismax
> query:
> mlt=true
> mlt.fl=list,of,fields,which,define,similarity
> See the MoreLikeThisHelper source code for more parameters.
> Here are two URLs that work with the example config, after loading all
> documents found in exampledocs in the index (just to show that it seems to
> work - of course you need a larger corpus to make it interesting):
> http://localhost:8983/solr/select/?stylesheet=&q=apache&qt=standard&mlt=true&mlt.fl=manu,cat&mlt.mindf=1&mlt.mindf=1&fl=id,score
> http://localhost:8983/solr/select/?stylesheet=&q=apache&qt=dismax&mlt=true&mlt.fl=manu,cat&mlt.mindf=1&mlt.mindf=1&fl=id,score
> Results are added to the output like this:
> <response>
> ...
> <lst name="moreLikeThis">
> <result name="UTF8TEST" numFound="1" start="0" maxScore="1.5293242">
> <doc>
> <float name="score">1.5293242</float>
> <str name="id">SOLR1000</str>
> </doc>
> </result>
> <result name="SOLR1000" numFound="1" start="0" maxScore="1.5293242">
> <doc>
> <float name="score">1.5293242</float>
> <str name="id">UTF8TEST</str>
> </doc>
> </result>
> </lst>
> I haven't tested this extensively yet, will do in the next few days. But
> comments are welcome of course.
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