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From "Robert Muir (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (LUCENE-3749) Similarity.java javadocs and simplifications for 4.0
Date Thu, 02 Feb 2012 20:38:56 GMT
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Still, we can cleanup a few things with the low-level api: fix outdated documentation and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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