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From "Tim Armstrong (JIRA)" <>
Subject [jira] Created: (LUCENE-1540) Improvements to contrib.benchmark for TREC collections
Date Tue, 10 Feb 2009 23:57:59 GMT
Improvements to contrib.benchmark for TREC collections

                 Key: LUCENE-1540
             Project: Lucene - Java
          Issue Type: Improvement
          Components: contrib/benchmark
    Affects Versions: 2.4
            Reporter: Tim Armstrong
            Priority: Minor

The benchmarking utilities for  TREC test collections ( are quite limited
and do not support some of the variations in format of older TREC collections.  

I have been doing some benchmarking work with Lucene and have had to modify the package to
* Older TREC document formats, which the current parser fails on due to missing document headers.
* Variations in query format - newlines after <title> tag causing the query parser to
get confused.
* Ability to detect and read in uncompressed text collections
* Storage of document numbers by default without storing full text.

I can submit a patch if there is interest, although I will probably want to write unit tests
for the new functionality first.

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