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https://issues.apache.org/jira/browse/LUCENE-7486?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15575339#comment-15575339
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ASF subversion and git services commented on LUCENE-7486:
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Commit b5a98cc52c29dbcb79299396d44db6b604c2c422 in lucene-solr's branch 
refs/heads/branch_6x from [~jpountz]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=b5a98cc ]

LUCENE-7486: Explain() should initialize maxScore to NEGATIVE_INFINITY too.


> 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
>             Fix For: 6.x, master (7.0), 6.3
>
>         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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