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From Sebastian Schelter <ssc.o...@googlemail.com>
Subject Re: Documentation for ParallelALSFactorizationJob
Date Mon, 12 Nov 2012 15:49:05 GMT
Hi Kris,

There is no such code. You can partially built that from what we have.
You can use ItemSimilarityJob to compute item similarities, load the
results into the non-distributed recommenders using a FileDataModel and
do the evaluation there.

Best,
Sebastian

On 12.11.2012 16:42, Kris Jack wrote:
> Thanks guys, I've got that working now.  I was interested to find that
> there is code that helps to evaluate the results of AWS.  Out of interest,
> is there similar code in Mahout that helps with evaluating matrix
> multiplication (e.g. org.apache.mahout.cf.taste.hadoop.item.RecommenderJob)?
> 
> Best,
> Kris
> 
> 
> 
> 
> 
> 2012/10/18 Sebastian Schelter <ssc@apache.org>
> 
>>> I don't know if there is code,
>>> probably not, but conceptually that is all that it involves.
>>
>> Once you factorized your interaction matrix, you can use
>>
>> org.apache.mahout.cf.taste.hadoop.als.RecommenderJob
>>
>> to compute recommendations in parallel.
>>
>> Best,
>> Sebastian
>>
>>
>>
>>
> 
> 


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