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https://issues.apache.org/jira/browse/LUCENE-1360?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Timm updated LUCENE-1360:
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Attachment: ShortFieldNormSimilarity.java
> A Similarity class which has unique length norms for numTerms <= 10
> -------------------------------------------------------------------
>
> Key: LUCENE-1360
> URL: https://issues.apache.org/jira/browse/LUCENE-1360
> Project: Lucene - Java
> Issue Type: Improvement
> Reporter: Sean Timm
> Priority: Trivial
> Attachments: ShortFieldNormSimilarity.java
>
>
> A Similarity class which extends DefaultSimilarity and simply overrides
> lengthNorm. lengthNorm is implemented as a lookup for numTerms <= 10, else
> as {{1/sqrt(numTerms)}}. This is to avoid term counts below 11 from having
> the same lengthNorm after stored as a single byte in the index.
> This is useful if your search is only on short fields such as titles or
> product descriptions.
> See mailing list discussion:
> http://www.nabble.com/How-to-boost-the-score-higher-in-case-user-query-matches-entire-field-value-than-just-some-words-within-a-field-td19079221.html
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