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https://issues.apache.org/jira/browse/LUCENE-3749?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13199382#comment-13199382
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Robert Muir commented on LUCENE-3749:
-------------------------------------
Thanks Mike: i will prematurely commit, just to make try to make some
incremental improvements.
I think its especially confusing/horrible in trunk after LUCENE-3555 and as the
javadocs are
out of date since norms are no longer required to be single-bytes, etc, etc.
if anyone objects, or has better ideas (ESPECIALLY NAMING: its the worst!),
don't hesitate...
this stuff is really important.
> Similarity.java javadocs and simplifications for 4.0
> ----------------------------------------------------
>
> Key: LUCENE-3749
> URL: https://issues.apache.org/jira/browse/LUCENE-3749
> Project: Lucene - Java
> Issue Type: Task
> Affects Versions: 4.0
> Reporter: Robert Muir
> Fix For: 4.0
>
> Attachments: LUCENE-3749.patch
>
>
> As part of adding additional scoring systems to lucene, we made a lower-level
> Similarity
> and the existing stuff became e.g. TFIDFSimilarity which extends it.
> However, I always feel bad about the complexity introduced here (though I do
> feel there
> are some "excuses", that its a difficult challenge).
> In order to try to mitigate this, we also exposed an easier API
> (SimilarityBase) on top of
> it that makes some assumptions (and trades off some performance) to try to
> provide something
> consumable for e.g. experiments.
> Still, we can cleanup a few things with the low-level api: fix outdated
> documentation and
> shoot for better/clearer naming etc.
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