Re: [jira] Commented: (MAHOUT-99) Improving speed of KMeans

[Jeff Eastman]

Also why not consider just converting canopy? Which reader is better?


Jeff Eastman wrote:

* PGP Signed: 03/18/09 at 21:37:36

Sure, why don't you go ahead and post a patch?


Pallavi Palleti (JIRA) wrote:

[ https://issues.apache.org/jira/browse/MAHOUT-99?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12683312#action_12683312 ]

Pallavi Palleti commented on MAHOUT-99:
---------------------------------------



Thanks
Pallavi

I have used KeyValueLineRecordReader internally for my code and forgot to revert back to SequenceFileReader. Will that be sufficient to add another patch on the latest code and modify only KMeansDriver to use SequenceFileReader? Kindly let me know.

Improving speed of KMeans
-------------------------

                Key: MAHOUT-99
                URL: https://issues.apache.org/jira/browse/MAHOUT-99
            Project: Mahout
         Issue Type: Improvement
         Components: Clustering
           Reporter: Pallavi Palleti
           Assignee: Grant Ingersoll
            Fix For: 0.1

Attachments: MAHOUT-99-1.patch, Mahout-99.patch, MAHOUT-99.patch Improved the speed of KMeans by passing only cluster ID from mapper to reducer. Previously, whole Cluster Info as formatted s`tring was being sent. Also removed the implicit assumption of Combiner runs only once approach and the code is modified accordingly so that it won't create a bug when combiner runs zero or more than once.

* Jeff Eastman <j...@windwardsolutions.com>
* 0x6BFF1277

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