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Posted to user@mahout.apache.org by "Paul, Seby" <Se...@searshc.com> on 2011/02/04 23:19:07 UTC

recommendation help

There is no user preference in our data file.   i can create
recommendations with mhaout using LogLikelihoodSimilarity and
TanimotoCoefficientSimilarity.

Is it possible to use any other similarity metrics without the
preference value?


Thank you
Seby Paul

Re: recommendation help

Posted by gustavo salazar <gu...@gmail.com>.

Could I use Spearman correlation without preference values?

2011/2/4 Sean Owen <sr...@gmail.com>

> If you are referring to implementations like PearsonCorrelationSimilarity
> --
> no. Those algorithms only make sense with preference values.
>
> On Fri, Feb 4, 2011 at 10:19 PM, Paul, Seby <Se...@searshc.com> wrote:
>
> >
> > There is no user preference in our data file.   i can create
> > recommendations with mhaout using LogLikelihoodSimilarity and
> > TanimotoCoefficientSimilarity.
> >
> > Is it possible to use any other similarity metrics without the
> > preference value?
> >
> >
> > Thank you
> > Seby Paul
> >
> >
> >
> >
>



-- 
Gustavo Salazar Loor
Estudiante de Ing. Telemática - Espol

Re: recommendation help

Posted by Sean Owen <sr...@gmail.com>.

If you are referring to implementations like PearsonCorrelationSimilarity --
no. Those algorithms only make sense with preference values.

On Fri, Feb 4, 2011 at 10:19 PM, Paul, Seby <Se...@searshc.com> wrote:

>
> There is no user preference in our data file.   i can create
> recommendations with mhaout using LogLikelihoodSimilarity and
> TanimotoCoefficientSimilarity.
>
> Is it possible to use any other similarity metrics without the
> preference value?
>
>
> Thank you
> Seby Paul
>
>
>
>