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Posted to dev@lucene.apache.org by "Tom Burton-West (JIRA)" <ji...@apache.org> on 2013/08/14 23:09:47 UTC

[jira] [Comment Edited] (LUCENE-5175) Add parameter to lower-bound TF normalization for BM25 (for long documents)

    [ https://issues.apache.org/jira/browse/LUCENE-5175?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13740186#comment-13740186 ] 

Tom Burton-West edited comment on LUCENE-5175 at 8/14/13 9:09 PM:
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I downloaded the luceneutils benchmark suite and the enwiki data and tried to run the out-of-the-box demo.  I need to ask our sysadmins to upgrade python versions on our dev machines. 

Tom 
                
      was (Author: tburtonwest):
    I downloaded the luceneutils benchmark suite and the enwiki data and tried to run the default out-of-the-box demo that gets copied into localrun.py and got the errors below.   I suspect maybe the python version on our dev machine is old or I need to set up some env variables.

Is there anything obvious in the message below?   Should I be asking questions about benchmark on the dev list or is there a separate list for that?

Tom

python localrun.py 
Traceback (most recent call last):
  File "localrun.py", line 18, in ?
    from competition import Competition
  File "/htsolr/lss-dev/data/4/LuceneBench/bench/util/competition.py", line 19, in ?
    import searchBench
  File "/htsolr/lss-dev/data/4/LuceneBench/bench/util/searchBench.py", line 25, in ?
    import benchUtil
  File "/htsolr/lss-dev/data/4/LuceneBench/bench/util/benchUtil.py", line 761
    with open(fullLogFile, 'rb') as f:

                  
> Add parameter to lower-bound TF normalization for BM25 (for long documents)
> ---------------------------------------------------------------------------
>
>                 Key: LUCENE-5175
>                 URL: https://issues.apache.org/jira/browse/LUCENE-5175
>             Project: Lucene - Core
>          Issue Type: Improvement
>          Components: core/search
>            Reporter: Tom Burton-West
>            Priority: Minor
>         Attachments: LUCENE-5175.patch
>
>
> In the article "When Documents Are Very Long, BM25 Fails!" a fix for the problem is documented.  There was a TODO note in BM25Similarity to add this fix. I will attach a patch that implements the fix shortly.

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