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From Sean Owen <>
Subject Re: Need to reduce execution time of RowSimilarityJob
Date Thu, 20 Sep 2012 09:21:11 GMT
Yes, what he means is that item-item similarity is just a subset of
what a recommender does. You can use an in memory rec based on
item-item similarity and just ask it for those similarities.

On Thu, Sep 20, 2012 at 10:19 AM, yamo93 <> wrote:
> Exactly, but i need to improve perf and i thought that an in-memory impl
> will be a solution (as mentionned in my first post).
> So Seb suggested to use recommender for that but i'm afraid he sent me on a
> wrong way ...

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