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https://issues.apache.org/jira/browse/SOLR-7539?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15010967#comment-15010967
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Ted Sullivan commented on SOLR-7539:
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Thanks [~jmlucjav] - we seem to be on the same page. Thanks for the reference
link to your blog. You make some very interesting and useful points. To answer
your question, the query autofilter has a configuration to exclude fields that
you don't want to be autofiltered. This may also be useful to protect the FST
lookup in cases where the field has a very large number of values.
> Add a QueryAutofilteringComponent for query introspection using indexed
> metadata
> --------------------------------------------------------------------------------
>
> Key: SOLR-7539
> URL: https://issues.apache.org/jira/browse/SOLR-7539
> Project: Solr
> Issue Type: New Feature
> Reporter: Ted Sullivan
> Priority: Minor
> Fix For: Trunk
>
> Attachments: SOLR-7539.patch, SOLR-7539.patch, SOLR-7539.patch
>
>
> The Query Autofiltering Component provides a method of inferring user intent
> by matching noun phrases that are typically used for faceted-navigation into
> Solr filter or boost queries (depending on configuration settings) so that
> more precise user queries can be met with more precise results.
> The algorithm uses a "longest contiguous phrase match" strategy which allows
> it to disambiguate queries where single terms are ambiguous but phrases are
> not. It will work when there is structured information in the form of String
> fields that are normally used for faceted navigation. It works across fields
> by building a map of search term to index field using the Lucene FieldCache
> (UninvertingReader). This enables users to create free text, multi-term
> queries that combine attributes across facet fields - as if they had searched
> and then navigated through several facet layers. To address the problem of
> exact-match only semantics of String fields, support for synonyms (including
> multi-term synonyms) and stemming was added.
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