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https://issues.apache.org/jira/browse/SOLR-2641?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13061584#comment-13061584
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Erik Hatcher commented on SOLR-2641:
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There's loads of room for improvement here, and likely there's better ways to
go about even the simple stuff I've done in this initial patch. Some ideas for
improvement: pluggable implementations to determine the "best" facets to
auto-select given the current request and results, ability to tailor the
parameters for each field selected for faceting (should facets be sorted by
index or count order? mincount? limit? how to determine these for each
field?).
> Auto Facet Selection component
> ------------------------------
>
> Key: SOLR-2641
> URL: https://issues.apache.org/jira/browse/SOLR-2641
> Project: Solr
> Issue Type: Improvement
> Components: SearchComponents - other
> Reporter: Erik Hatcher
> Assignee: Erik Hatcher
> Priority: Minor
> Attachments: SOLR_2641.patch
>
>
> It sure would be nice if you could have Solr automatically select field(s)
> for faceting based dynamically off the profile of the results. For example,
> you're indexing disparate types of products, all with varying attributes
> (color, size - like for apparel, memory_size - for electronics, subject - for
> books, etc), and a user searches for "ipod" where most products match
> products with color and memory_size attributes... let's automatically facet
> on those fields.
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