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From "Robert Muir (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-3749) Similarity.java javadocs and simplifications for 4.0
Date Fri, 03 Feb 2012 00:01:06 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-3749?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13199382#comment-13199382
] 

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out of date since norms are no longer required to be single-bytes, etc, etc.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 Still, we can cleanup a few things with the low-level api: fix outdated documentation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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