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From Jeff Eastman <>
Subject Re: syntheticcontroldata clustering example failure due to combiner
Date Thu, 11 Jun 2009 03:54:33 GMT
r783617 removed the CanopyCombiner and refactored its semantics back 
into the reducer. Updated unit tests pass and Synthetic Control with 
Canopy produces 6 clusters. Kmeans also runs produces 6 clusters too. I 
really don't like doing stuff in close() but see no practical 
alternative. Ideas are still welcomed.


Jeff Eastman wrote:
> Adil Aijaz wrote:
>> 2. There is a bug in 
>> examples/src/main/java/org/apache/mahout/clustering/syntheticcontrol/kmeans/

>> that called runJob from main function with my provided arguments 
>> transposed. So, my convergenceDelta was interpreted as t1, t1 as t2, 
>> and t2 as convergenceDelta. I will commit a patch as soon as I get 
>> approval for opensource commits from my employer, however, I thought 
>> I'd put it out there in case someone else is going through the same 
>> issue.
> r783585 fixed the parameter ordering bug. Still working on the 
> Combiner problem.
> Thanks Adil,
> Jeff

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