[Archive-access-cvs] SF.net SVN: archive-access:[2976] trunk/archive-access/projects/nutchwax/ archive/HOWTO-pagerank.txt

[<bi...@us...>]

Revision: 2976
          http://archive-access.svn.sourceforge.net/archive-access/?rev=2976&view=rev
Author:   binzino
Date:     2010-03-18 21:55:45 +0000 (Thu, 18 Mar 2010)

Log Message:
-----------
Updated for NW 0.13.

Modified Paths:
--------------
    trunk/archive-access/projects/nutchwax/archive/HOWTO-pagerank.txt

Modified: trunk/archive-access/projects/nutchwax/archive/HOWTO-pagerank.txt
===================================================================
--- trunk/archive-access/projects/nutchwax/archive/HOWTO-pagerank.txt	2010-03-18 21:51:55 UTC (rev 2975)
+++ trunk/archive-access/projects/nutchwax/archive/HOWTO-pagerank.txt	2010-03-18 21:55:45 UTC (rev 2976)
@@ -1,6 +1,6 @@
 
 HOWTO-pagerank.txt
-2008-12-18
+2010-02-13
 Aaron Binns
 
 Table of Contents
@@ -30,22 +30,20 @@
 simplistic "page rank" information for scoring and sorting documents
 in the full-text search index.
 
-Nutch's 'invertlinks' step inverts links and stores them in the
-'linkdb' directory.  We use these inlinks to boost the Lucene score of
-documents in proportion to the number of inlinks.
+NutchWAX's 'pagerankdb' command inverts and counts links to a page,
+storing the counts in a directory named 'pagerankdb'.  This
+information is then used to update the boost values in the Lucene
+index in proportion to number of inlinks to each document.
 
 
 ======================================================================
 Generate PageRank
 ======================================================================
 
-After the Nutch 'invertlinks' step is performed, run the NutchWAX
-'pagerank' command to extract inlink information from the 'linkdb'
-
 For example
 
-  $ nutch invertlinks linkdb -dir segments
-  $ nutchwax pagerank pagerank.txt linkdb
+  $ nutchwax pagerankdb prdb -dir segments
+  $ nutchwax pagerank pagerank.txt prdb
 
 The resulting "pagerank.txt" file is a simple text file containing
 a count of the number of inlinks followed by the URL. 


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