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Posted to dev@mahout.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2008/11/08 16:12:44 UTC
[jira] Commented: (MAHOUT-95) UserSimilarity-based
NearestNNeighborhood
[ https://issues.apache.org/jira/browse/MAHOUT-95?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12645989#action_12645989 ]
Sean Owen commented on MAHOUT-95:
---------------------------------
Looks OK to me. I agree it makes sense to maintain only 1 class if it encapsulates the other two. I changed the original today so you may want to look at the original again.
> 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: 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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