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From "Otis Gospodnetic (JIRA)" <j...@apache.org>
Subject [jira] Created: (MAHOUT-95) UserSimilarity-based NearestNNeighborhood
Date Fri, 07 Nov 2008 18:04:54 GMT
UserSimilarity-based NearestNNeighborhood
-----------------------------------------

                 Key: MAHOUT-95
                 URL: https://issues.apache.org/jira/browse/MAHOUT-95
             Project: Mahout
          Issue Type: Improvement
          Components: Collaborative Filtering
            Reporter: Otis Gospodnetic
            Priority: Minor
         Attachments: UserSimilarityNearestNUserNeighborhood.java

A variation of NearestNUserNeighborhood.  This version adds the minSimilarity parameter, which
is the primary factor for including/excluding other users from the target user's neighbourhood.
 Additionally, the 'n' parameter was renamed to maxHoodSize and is used to optionally limit
the size of the neighbourhood.

The patch is for a brand new class, but we may really want just a single class (either keep
this one and axe NearestNUserNeighborhood or add this functionality to NearestNUserNeighborhood),
if this sounds good.

I'll update the unit test and provide a patch for that if others think this can go in.

Thoughts?


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