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From Apache Wiki <wikidi...@apache.org>
Subject [Lucene-hadoop Wiki] Update of "Bigtable&Sawzall" by udanax
Date Mon, 12 Feb 2007 12:17:34 GMT
Dear Wiki user,

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

The following page has been changed by udanax:
http://wiki.apache.org/lucene-hadoop/Bigtable%26Sawzall

------------------------------------------------------------------------------
  
  To help make a business decision, to find a way to meet the need of each customer, or to
find a product or a market that will bring big profits, we group together action logs of users
and create a User Table like the one below.  
  
- ''row [ user ], attribute columns [ search history, item buying log, post scrap log, Page
Viewing log, User neighborhood (blog), User active part (cafe) ]''
+ '''''row [ user ], attribute columns [ search history, item buying log, post scrap log,
Page Viewing log, User neighborhood (blog), User active part (cafe) ]'''''
  
  If we select two columns, the fact table in the above schema can be represented in a two-dimensional
table.
  

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