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From "Otis Gospodnetic (JIRA)" <>
Subject [jira] Updated: (MAHOUT-95) UserSimilarity-based NearestNNeighborhood
Date Fri, 07 Nov 2008 18:06:51 GMT


Otis Gospodnetic updated MAHOUT-95:

    Attachment: MAHOUT-95-diff-against-nearestN.txt

> UserSimilarity-based NearestNNeighborhood
> -----------------------------------------
>                 Key: MAHOUT-95
>                 URL:
>             Project: Mahout
>          Issue Type: Improvement
>          Components: Collaborative Filtering
>            Reporter: Otis Gospodnetic
>            Priority: Minor
>         Attachments: MAHOUT-95-diff-against-nearestN.txt, MAHOUT-95.patch,
> 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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