[jira] [Updated] (LUCENE-3749) Similarity.java javadocs and simplifications for 4.0

["Robert Muir (Updated) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENE-3749?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Muir updated LUCENE-3749:
--------------------------------

    Attachment: LUCENE-3749.patch

patch
                
> 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 Still, we can cleanup a few things with the low-level api: fix outdated documentation and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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