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Posted to issues@lucene.apache.org by "Alessandro Benedetti (Jira)" <ji...@apache.org> on 2020/02/07 16:09:00 UTC
[jira] [Commented] (SOLR-12238) Synonym Query Style Boost By
Payload
[ https://issues.apache.org/jira/browse/SOLR-12238?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17032489#comment-17032489 ]
Alessandro Benedetti commented on SOLR-12238:
---------------------------------------------
hi [~dsmiley], [~romseygeek], first of all, thank you again for your patience and very useful insights.
The child Lucene issue and pull request have been updated incorporating Alan's suggestions.
> Synonym Query Style Boost By Payload
> ------------------------------------
>
> Key: SOLR-12238
> URL: https://issues.apache.org/jira/browse/SOLR-12238
> Project: Solr
> Issue Type: Improvement
> Components: query parsers
> Affects Versions: 7.2
> Reporter: Alessandro Benedetti
> Priority: Major
> Attachments: SOLR-12238.patch, SOLR-12238.patch, SOLR-12238.patch, SOLR-12238.patch
>
> Time Spent: 2h 50m
> Remaining Estimate: 0h
>
> This improvement is built on top of the Synonym Query Style feature and brings the possibility of boosting synonym queries using the payload associated.
> It introduces two new modalities for the Synonym Query Style :
> PICK_BEST_BOOST_BY_PAYLOAD -> build a Disjunction query with the clauses boosted by payload
> AS_DISTINCT_TERMS_BOOST_BY_PAYLOAD -> build a Boolean query with the clauses boosted by payload
> This new synonym query styles will assume payloads are available so they must be used in conjunction with a token filter able to produce payloads.
> An synonym.txt example could be :
> # Synonyms used by Payload Boost
> tiger => tiger|1.0, Big_Cat|0.8, Shere_Khan|0.9
> leopard => leopard, Big_Cat|0.8, Bagheera|0.9
> lion => lion|1.0, panthera leo|0.99, Simba|0.8
> snow_leopard => panthera uncia|0.99, snow leopard|1.0
> A simple token filter to populate the payloads from such synonym.txt is :
> <filter class="solr.DelimitedPayloadTokenFilterFactory" encoder="float" delimiter="|"/>
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