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From "Renaud Delbru (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-2886) Adaptive Frame Of Reference
Date Fri, 04 Feb 2011 14:44:28 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-2886?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12990568#comment-12990568
] 

Renaud Delbru commented on LUCENE-2886:
---------------------------------------

Hi Michael, 
the first results are not that impressive. 
* Could you tell me what is BulkVInt ? Is it the simple VInt codec implemented on top of the
Bulk branch ?
* What the difference between '+united +states' and '+nebraska +states' ? Is nebraska a low
frequency term ?

> Adaptive Frame Of Reference 
> ----------------------------
>
>                 Key: LUCENE-2886
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2886
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: Codecs
>            Reporter: Renaud Delbru
>             Fix For: 4.0
>
>         Attachments: LUCENE-2886_simple64.patch, LUCENE-2886_simple64_varint.patch, lucene-afor.tar.gz
>
>
> We could test the implementation of the Adaptive Frame Of Reference [1] on the lucene-4.0
branch.
> I am providing the source code of its implementation. Some work needs to be done, as
this implementation is working on the old lucene-1458 branch. 
> I will attach a tarball containing a running version (with tests) of the AFOR implementation,
as well as the implementations of PFOR and of Simple64 (simple family codec working on 64bits
word) that has been used in the experiments in [1].
> [1] http://www.deri.ie/fileadmin/documents/deri-tr-afor.pdf

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