Hey all,
When using a discrete rating scale (e.g. likes / dislikes), what are the
things that I should consider when using Mahout for Collaborative Filtering?
If I'm not mistaking I've read a mail a week or two ago from this mailing
list stating that one should avoid using 0 (disl
to have a fix rating scale while running
> recommendations or it can be dynamic based on the users' data ?
>
> Many Thanks
>
> On Mon, Feb 4, 2013 at 3:56 PM, Zia mel wrote:
> > Hi , is there a necessity to have a fix rating scale while running
> > recommendations or it can be dynamic based on the users' data ?
> >
> > Many Thanks
>
ave users rate on a 1-5 scale one day, and 1-100
> > tomorrow (unless you go back and normalize the old data to 1-100).
> >
> > On Mon, Feb 4, 2013 at 3:56 PM, Zia mel wrote:
> > > Hi , is there a necessity to have a fix rating scale while running
> > > recommendations or it can be dynamic based on the users' data ?
> > >
> > > Many Thanks
> >
>
> > It wouldn't work to have users rate on a 1-5 scale one day, and 1-100
> > > tomorrow (unless you go back and normalize the old data to 1-100).
> > >
> > > On Mon, Feb 4, 2013 at 3:56 PM, Zia mel
> wrote:
> > > > Hi , is there a necessity to have a fix rating scale while running
> > > > recommendations or it can be dynamic based on the users' data ?
> > > >
> > > > Many Thanks
> > >
> >
>
> Yutaka
>> >
>> >
>> >
>> > 2013/2/5 Sean Owen
>> >
>> > > You don't have to fix a scale. But your data needs to be consistent.
>> > > It wouldn't work to have users rate on a 1-5 scale one day, and 1-100
>> > > tomorrow (unless you go back and normalize the old data to 1-100).
>> > >
>> > > On Mon, Feb 4, 2013 at 3:56 PM, Zia mel
>> wrote:
>> > > > Hi , is there a necessity to have a fix rating scale while running
>> > > > recommendations or it can be dynamic based on the users' data ?
>> > > >
>> > > > Many Thanks
>> > >
>> >
>>
SVD recommender is more suitable for this purpose.
> >> > Apprecaite your advise.
> >> > Yutaka
> >> >
> >> >
> >> >
> >> > 2013/2/5 Sean Owen
> >> >
> >> > > You don't have to fix a scale. But your data needs to be consistent.
> >> > > It wouldn't work to have users rate on a 1-5 scale one day, and
> 1-100
> >> > > tomorrow (unless you go back and normalize the old data to 1-100).
> >> > >
> >> > > On Mon, Feb 4, 2013 at 3:56 PM, Zia mel
> >> wrote:
> >> > > > Hi , is there a necessity to have a fix rating scale while running
> >> > > > recommendations or it can be dynamic based on the users' data ?
> >> > > >
> >> > > > Many Thanks
> >> > >
> >> >
> >>
>
7;t have to fix a scale. But your data needs to be consistent.
> > > It wouldn't work to have users rate on a 1-5 scale one day, and 1-100
> > > tomorrow (unless you go back and normalize the old data to 1-100).
> > >
> > > On Mon, Feb 4, 2013 at 3:56 PM, Zia mel
> wrote:
> > > > Hi , is there a necessity to have a fix rating scale while running
> > > > recommendations or it can be dynamic based on the users' data ?
> > > >
> > > > Many Thanks
> > >
> >
>
4:21 PM, Floris Devriendt wrote:
> Hey all,
>
> When using a discrete rating scale (e.g. likes / dislikes), what are the
> things that I should consider when using Mahout for Collaborative
> Filtering?
>
> If I'm not mistaking I've read a mail a week or two ago fr
:21 AM, Floris Devriendt wrote:
> Hey all,
>
> When using a discrete rating scale (e.g. likes / dislikes), what are the
> things that I should consider when using Mahout for Collaborative
> Filtering?
>
> If I'm not mistaking I've read a mail a week or two ago from t
kelihood are True/False, but False means "not
> interacted". Having "dislike = False" would be extremely misleading.
>
> For all the other algorithms, I'd say one should make similar
> considerations.
>
> Cheers
> Mario
>
>
> On Mon, Jul 14, 2
ng that into the DSL as we speak.
>
>
>
> On Mon, Jul 14, 2014 at 7:21 AM, Floris Devriendt <
> florisdevrie...@gmail.com
> > wrote:
>
> > Hey all,
> >
> > When using a discrete rating scale (e.g. likes / dislikes), what are the
> > things t
commendation. Pat is working
> > on bringing that into the DSL as we speak.
> >
> >
> >
> > On Mon, Jul 14, 2014 at 7:21 AM, Floris Devriendt <
> > florisdevrie...@gmail.com
> > > wrote:
> >
> > > Hey all,
> > >
> > > Wh
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