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From "Edward J. Yoon" <edwardy...@apache.org>
Subject Get the pairs of all row key combinations w/o repetition
Date Wed, 13 Aug 2008 12:16:23 GMT
Hi communities,

Do you have any idea how to get the pairs of all row key combinations
w/o repetition on Map/Reduce as describe below?

Input : (MapFile or Hbase Table)

<Key1, Value or RowResult>
<Key2, Value or RowResult>
<Key3, Value or RowResult>
<Key4, Value or RowResult>

Output :

<Key1, Key2>
<Key1, Key3>
<Key1, Key4>
<Key2, Key3>
<Key2, Key4>
<Key3, Key4>

It would be nice if someone can review my pseudo code of traditional
CF using cosine similarity.
http://wiki.apache.org/hama/TraditionalCollaborativeFiltering

Thanks.
-- 
Best regards, Edward J. Yoon
edwardyoon@apache.org
http://blog.udanax.org

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