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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-2886) Adaptive Frame Of Reference
Date Fri, 04 Feb 2011 03:22:24 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-2886?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12990439#comment-12990439
] 

Robert Muir commented on LUCENE-2886:
-------------------------------------

We are still not using 2 of the simple64 selectors, but in the simple64 paper it discusses
using these wasted bits to represent 120 and 240 "all ones"... I think we should do this?


> 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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