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From "Frank Scholten (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAHOUT-845) Make cluster top terms code more reusable
Date Thu, 01 Dec 2011 08:49:41 GMT

    [ https://issues.apache.org/jira/browse/MAHOUT-845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13160744#comment-13160744
] 

Frank Scholten commented on MAHOUT-845:
---------------------------------------

I agree that the original solution is too invasive and the feature you are describing is nice
for inspection.

One suggestion I have is to separate the JSON formatting from retrieving the top terms.


                
> Make cluster top terms code more reusable
> -----------------------------------------
>
>                 Key: MAHOUT-845
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-845
>             Project: Mahout
>          Issue Type: Improvement
>          Components: Clustering
>    Affects Versions: 0.5
>            Reporter: Frank Scholten
>            Priority: Minor
>             Fix For: 0.6
>
>         Attachments: MAHOUT-845.patch, MAHOUT-845.patch, MAHOUT-845.patch
>
>
> When working with Mahout text clustering I find that I keep writing code similar to the
contents of
> public static String getTopFeatures(Cluster cluster, String[] dictionary, int numTerms)
> in ClusterDumper in order to determine cluster labels.
> I think it would be useful if (parts of) this code are added to the cluster or vector
API so that you could do something like
> Cluster cluster = ... // get the cluster from seq file iterable
> String clusterLabel = cluster.getTopTerms(1, dictionary); // Do something with the label
 
> I think this would make it easier to export and post-process clustering results, like
indexing or storing them elsewhere.
> Thoughts?

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