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From Lance Norskog <>
Subject Re: Using SVD for recommendations with Hadoop
Date Wed, 01 Dec 2010 22:32:23 GMT
Buy this early access download.

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On Wed, Dec 1, 2010 at 8:08 AM, Stefano Bellasio
<> wrote:
> Hi guys, i'm going ahead with some tests with Hadoop and Mahout. Right now my goal is
to use SVD to recommend on my Movielens data set, but i have some questions:
> 1) i have a .txt movielens data set right now, composed as UserID, itemID, PreferenceValue.
How can i convert this to use SVD? I think i need to create a matrix, is there some tool or
class that i can use?
> 2) the final goal is using DistributedLanczosSolver with Hadoop, are there some suggestions
or info that i need to know about this one?
> Thank you! regards

Lance Norskog

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