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https://issues.apache.org/jira/browse/LUCENE-8012?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16308084#comment-16308084
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ASF subversion and git services commented on LUCENE-8012:
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Commit a56cb42fde41422c99108ff2749c29080bb94e36 in lucene-solr's branch
refs/heads/master from [~romseygeek]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=a56cb42 ]
LUCENE-8012: LTR contrib needs to use float values in explanations
> Improve Explanation class
> -------------------------
>
> Key: LUCENE-8012
> URL: https://issues.apache.org/jira/browse/LUCENE-8012
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Robert Muir
> Labels: newdev
> Fix For: master (8.0)
>
> Attachments: LUCENE-8012.patch, LUCENE-8012.patch
>
>
> Explanation class is currently nice and simple, and float matches the scoring
> api, but this does not work well for debugging numerical errors of internal
> calculations (it usually makes practical sense to use 64-bit double to avoid
> issues).
> Also it makes for nasty formatting of integral values such as number of
> tokens in the collection or even document's length, its just noise to see
> {{10.0}} there instead of {{10}}, and scientific notation for e.g. number of
> documents is just annoying.
> One idea is to take Number instead of float? Then you could pass in the
> correct numeric type (int,long,double,float) for internal calculations,
> parameters, statistics, etc, and output would look nice.
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