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From Apache Wiki <>
Subject [Lucene-java Wiki] Update of "SearchQualityReports" by DoronCohen
Date Tue, 08 Jan 2008 23:44:57 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Lucene-java Wiki" for change notification.

The following page has been changed by DoronCohen:

New page:
= Reports on Search Quality Experiments with Lucene =

This page is for Lucene users and developers to report on experiments of measuring or improving
Lucene search quality.

== Search Quality? ==

First question is how to define the search quality. 
While each new experiment reported herein may define different measures,
few standard ones are
 * MAP - Mean Average Precision.
 * MRR - Mean Reciprocal Precision.
 * P@n - Precision at n, where sometimes interesting n values are 1, 5, 10, and 20.
See also [ wikipedia/ir].

== How to Measure? ==

In Lucene's contrib benchmark, the
 search quality package]
can be used for quality tests. 
The package comes with ready to use TREC evaluation and query parsing
code, as well as submission reports creation for submitting to TREC, 
but is open for extension to any other evaluation data and queries.

== The experiments ==

These are the experiments reported so far.
Please add yours!

* ["TREC 2007 1MQ Track - IBM Haifa Team"].

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