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https://issues.apache.org/jira/browse/LUCENE-5350?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13835546#comment-13835546
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Michael McCandless commented on LUCENE-5350:
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I think a context aware suggester is a great idea!
I wonder ... how this approach (stuff the context in front of each suggestion &
then build "normally") compares to simply creating N separate suggesters, one
per context? Like, I wonder how much better FST compression we get by using a
single FST vs N? Lookup wise, it seems like we are just doing N separate
lookups so that part should be similar?
> Add Context Aware Suggester
> ---------------------------
>
> Key: LUCENE-5350
> URL: https://issues.apache.org/jira/browse/LUCENE-5350
> Project: Lucene - Core
> Issue Type: New Feature
> Components: core/search
> Reporter: Areek Zillur
> Fix For: 5.0, 4.7
>
> Attachments: LUCENE-5350.patch
>
>
> It would be nice to have a Context Aware Suggester (i.e. a suggester that
> could return suggestions depending on some specified context(s)).
> Use-cases:
> - location-based suggestions:
> -- returns suggestions which 'match' the context of a particular area
> --- suggest restaurants names which are in Palo Alto (context ->
> Palo Alto)
> - category-based suggestions:
> -- returns suggestions for items that are only in certain
> categories/genres (contexts)
> --- suggest movies that are of the genre sci-fi and adventure
> (context -> [sci-fi, adventure])
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