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From Sean Owen <sro...@gmail.com>
Subject Re: Can Mahout make recommendations while the recommender is being refreshed?
Date Sun, 21 Nov 2010 12:46:24 GMT
Agree with Ted's solution in practice.
Stuff should already be using floats, or have the option to use floats, for
this reason. The precision is usually not helpful in this context.

On Sun, Nov 21, 2010 at 4:44 AM, Lance Norskog <goksron@gmail.com> wrote:

> Another option is to change the Double arrays to Floats.
>
> I tried this on one of the Recommenders (can't remember which one) and
> the speed and result value were exactly the same.
>
> On Fri, Nov 19, 2010 at 1:46 PM, Ted Dunning <ted.dunning@gmail.com>
> wrote:
> > If you are running that close to full, then running more than one
> > recommender might be a preferable solution.  You can take one off-line,
> > update it, bring it back, update the other.  This decreases redundancy
> for a
> > small period, but that is usually an acceptable risk.
> >
> > On Fri, Nov 19, 2010 at 1:44 PM, Sebastian Schelter <ssc@apache.org>
> wrote:
> >
> >> Good thing to talk about that issue, it's really not an ideal situation
> >> to have FileDataModel need double memory at refresh time as it
> >> effectively cuts in a half the amount of preferences that can be loaded
> >> into per memory per machine.
> >>
> >
>
>
>
> --
> Lance Norskog
> goksron@gmail.com
>

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