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From Sean Owen <>
Subject Re: Taste-GenericItemBasedRecommender
Date Fri, 04 Dec 2009 18:59:19 GMT
On Fri, Dec 4, 2009 at 6:04 PM, Jake Mannix <> wrote:
> How would you do this?  Take the rows of v_i cross v_i and add them
> up?  Isn't that another MR job?

No I suppose I meant take each row of A'A, one at a time, and dot with
h. That's computing the recommendation vector with only one row in
memory at a time.

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