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https://issues.apache.org/jira/browse/MAHOUT-825?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13120668#comment-13120668
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Paritosh Ranjan edited comment on MAHOUT-825 at 10/5/11 5:31 AM:
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I have attached a new patch (canopy-clusterFilter-t1), which checks whether it
needs to apply dist < t1 or not. Which means, whether it needs to cluster all
points, or, it should cluster only points within t1 ( based on user specified
clusterFilter variable ).
I have also added test cases, demonstrating clustering of both cases, (based on
clusterFilter variable)
1) all points being clustered
2) only points with dist < t1 being clustered
was (Author: paritoshranjan):
I have attached a new patch, which checks whether it needs to apply dist <
t1 or not. Which means, whether it needs to cluster all points, or, it should
cluster only points within t1 ( based on user specified clusterFilter variable
).
I have also added test cases, demonstrating clustering of both cases, (based on
clusterFilter variable)
1) all points being clustered
2) only points with dist < t1 being clustered
> Canopies grouping records outside t1
> ------------------------------------
>
> Key: MAHOUT-825
> URL: https://issues.apache.org/jira/browse/MAHOUT-825
> Project: Mahout
> Issue Type: Bug
> Components: Clustering
> Affects Versions: 0.6
> Environment: windows, linux
> Reporter: Paritosh Ranjan
> Labels: features, newbie, patch
> Fix For: 0.6
>
> Attachments: canopy-clusterFilter-t1, canopy-outside-t1-points-patch-1
>
>
> While finding closest canopy, there is no check to ensure that it returns
> canopies which are within distance t1 from the point. This results in
> incorrect result i.e. Points outside t1 are grouped in canopies.
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