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https://issues.apache.org/jira/browse/LUCENE-5294?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael McCandless resolved LUCENE-5294.
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Resolution: Fixed
Fix Version/s: 5.0
4.6
I put the wrong issue (LUCENE-4998) in the commit log so the commits are on
that issue ...
Thanks Areek!
> Suggester Dictionary implementation that takes expressions as term weights
> --------------------------------------------------------------------------
>
> Key: LUCENE-5294
> URL: https://issues.apache.org/jira/browse/LUCENE-5294
> Project: Lucene - Core
> Issue Type: New Feature
> Components: core/search
> Reporter: Areek Zillur
> Fix For: 4.6, 5.0
>
> Attachments: LUCENE-5294.patch
>
>
> It would be nice to have a Suggester Dictionary implementation that could
> compute the weights of the terms consumed by the suggester based on an
> user-defined expression (using lucene's expression module).
> It could be an extension of the existing DocumentDictionary (which takes
> terms, weights and (optionally) payloads from the stored documents in the
> index). The only exception being that instead of taking the weights for the
> terms from the specified weight fields, it could compute the weights using an
> user-defn expression, that uses one or more NumicDocValuesField from the
> document.
> Example:
> let the document have
> - product_id
> - product_name
> - product_popularity
> - product_profit
> Then this implementation could be used with an expression of
> "0.2*product_popularity + 0.8*product_profit" to determine the weights of the
> terms for the corresponding documents (optionally along with a payload
> (product_id))
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