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Posted to dev@lucene.apache.org by "Michael McCandless (JIRA)" <ji...@apache.org> on 2016/06/20 09:24:05 UTC
[jira] [Commented] (LUCENE-7347) Remove queryNorm and coords
[ https://issues.apache.org/jira/browse/LUCENE-7347?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15339223#comment-15339223 ]
Michael McCandless commented on LUCENE-7347:
--------------------------------------------
+1
> Remove queryNorm and coords
> ---------------------------
>
> Key: LUCENE-7347
> URL: https://issues.apache.org/jira/browse/LUCENE-7347
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Adrien Grand
> Assignee: Adrien Grand
>
> These two features are specific to TF-IDF and introduce some complexity (see eg. handling of coords in BooleanWeight) and bugs/corner-cases (see eg. how taking the query norm into account causes scoring challenges on LUCENE-7337).
> Since we made BM25 the default in 6.0, I propose that we remove these TF-IDF-specific features in 7.0.
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