Ted Sullivan created SOLR-7539:
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Summary: 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
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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