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https://issues.apache.org/jira/browse/LUCENE-7486?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Uwe Schindler updated LUCENE-7486:
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Attachment: LUCENE-7486.patch
New patch with test. Test fails without the NEGATIVE_INFINITY fix. The trick
was to use a BoostQuery with negative boost.
> DisjunctionMaxScorer Initializes scoreMax to Zero Preventing From Using
> Negative Scores
> ---------------------------------------------------------------------------------------
>
> Key: LUCENE-7486
> URL: https://issues.apache.org/jira/browse/LUCENE-7486
> Project: Lucene - Core
> Issue Type: Bug
> Components: core/search
> Affects Versions: 5.5.2
> Reporter: Ivan Provalov
> Assignee: Uwe Schindler
> Attachments: LUCENE-7486.patch, LUCENE-7486.patch
>
>
> We are using a log of probability for scoring, which gives us negative
> scores.
> DisjunctionMaxScorer initializes scoreMax in the score(...) function to zero
> preventing us from using negative scores. Is there a reason it couldn't be
> initialized to something like this:
> float scoreMax = Float.MAX_VALUE * -1;
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