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From Ted Dunning <ted.dunn...@gmail.com>
Subject Re: [jira] [Updated] (MAHOUT-1157) AbstractCluster.formatVector iteration bug.
Date Fri, 08 Mar 2013 11:55:13 GMT
Thanks for the patch. 

Sent from my iPhone

On Mar 8, 2013, at 1:22 AM, "Adam Bozanich (JIRA)" <jira@apache.org> wrote:

> 
>     [ https://issues.apache.org/jira/browse/MAHOUT-1157?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
> 
> Adam Bozanich updated MAHOUT-1157:
> ----------------------------------
> 
>    Attachment: mahout.patch
> 
>> AbstractCluster.formatVector iteration bug.
>> -------------------------------------------
>> 
>>                Key: MAHOUT-1157
>>                URL: https://issues.apache.org/jira/browse/MAHOUT-1157
>>            Project: Mahout
>>         Issue Type: Bug
>>         Components: Clustering
>>   Affects Versions: 0.7
>>           Reporter: Adam Bozanich
>>        Attachments: mahout.patch
>> 
>> 
>> AbstractCluster.formatVector's use of the size field of the given vector causes problems
when the vector is sparse.
>> When reading WeightedVectorWriteables from the clusteredPoints directory that was
created by running kmeans with the -cl flag, the embedded RandomAccessSparseVector is being
instantiated with 
>> I clustered a handful of vectors which had been initialized with a cardinality of
Integer.MAX_VALUE. Running seqdump on the resulting clusteredPoints took over four minutes.
> 
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