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Posted to user@mahout.apache.org by Simon Franz <si...@googlemail.com> on 2012/02/21 19:47:16 UTC
Collaborative Filtering without ratings
Hi there,
I'm very new to Mahout and recommender systems. I have made my first
steps with mahout in java and mahout is really nice and quite "simple"
to use.
In my scenario I want to use Mahout as recommender for music. I have
many tracks and users and a set of what each user has listen at a
particular timestamp. Does Mahout support a recommender who can
recommender for a datafile without ratings? Something like
<userid>,<trackid> ?
Thanks in advance.
Best Regards
Simon
Re: Collaborative Filtering without ratings
Posted by Lance Norskog <go...@gmail.com>.
You just use the same value for all ratings, like '1.0' v.s. '0.0' for
no rating found.
On Tue, Feb 21, 2012 at 1:25 PM, Manuel Blechschmidt
<Ma...@gmx.de> wrote:
> Hi Simon,
> yes, this is possible. The following demo project is doing that:
>
> https://github.com/ManuelB/facebook-recommender-demo
>
> If you replace the Demo file with your data file you are ready to go.
> https://github.com/ManuelB/facebook-recommender-demo/blob/master/src/main/resources/DemoFriendsLikes.csv
> (Actually only the first to entries are needed)
>
> Here is a well documented EJB which is doing the complete recommender part:
> https://github.com/ManuelB/facebook-recommender-demo/blob/master/src/main/java/de/apaxo/bedcon/FacebookRecommender.java
>
> Hope that helps
> Manuel
>
> On 21.02.2012, at 19:47, Simon Franz wrote:
>
>> Hi there,
>> I'm very new to Mahout and recommender systems. I have made my first
>> steps with mahout in java and mahout is really nice and quite "simple"
>> to use.
>> In my scenario I want to use Mahout as recommender for music. I have
>> many tracks and users and a set of what each user has listen at a
>> particular timestamp. Does Mahout support a recommender who can
>> recommender for a datafile without ratings? Something like
>> <userid>,<trackid> ?
>>
>> Thanks in advance.
>> Best Regards
>> Simon
>
> --
> Manuel Blechschmidt
> Dortustr. 57
> 14467 Potsdam
> Mobil: 0173/6322621
> Twitter: http://twitter.com/Manuel_B
>
--
Lance Norskog
goksron@gmail.com
Re: Collaborative Filtering without ratings
Posted by Manuel Blechschmidt <Ma...@gmx.de>.
Hi Simon,
yes, this is possible. The following demo project is doing that:
https://github.com/ManuelB/facebook-recommender-demo
If you replace the Demo file with your data file you are ready to go.
https://github.com/ManuelB/facebook-recommender-demo/blob/master/src/main/resources/DemoFriendsLikes.csv
(Actually only the first to entries are needed)
Here is a well documented EJB which is doing the complete recommender part:
https://github.com/ManuelB/facebook-recommender-demo/blob/master/src/main/java/de/apaxo/bedcon/FacebookRecommender.java
Hope that helps
Manuel
On 21.02.2012, at 19:47, Simon Franz wrote:
> Hi there,
> I'm very new to Mahout and recommender systems. I have made my first
> steps with mahout in java and mahout is really nice and quite "simple"
> to use.
> In my scenario I want to use Mahout as recommender for music. I have
> many tracks and users and a set of what each user has listen at a
> particular timestamp. Does Mahout support a recommender who can
> recommender for a datafile without ratings? Something like
> <userid>,<trackid> ?
>
> Thanks in advance.
> Best Regards
> Simon
--
Manuel Blechschmidt
Dortustr. 57
14467 Potsdam
Mobil: 0173/6322621
Twitter: http://twitter.com/Manuel_B
Re: Collaborative Filtering without ratings
Posted by VIGNESH PRAJAPATI <vi...@gmail.com>.
Yes, Simon Franz
Mahout also supports recommender for a datafile without ratings ..Here
is one tutorial as your requirement..check it out
http://code.google.com/p/unresyst/wiki/CreateMahoutRecommender
Thanks vignesh,
On Wed, Feb 22, 2012 at 12:17 AM, Simon Franz
<si...@googlemail.com>wrote:
> Hi there,
> I'm very new to Mahout and recommender systems. I have made my first
> steps with mahout in java and mahout is really nice and quite "simple"
> to use.
> In my scenario I want to use Mahout as recommender for music. I have
> many tracks and users and a set of what each user has listen at a
> particular timestamp. Does Mahout support a recommender who can
> recommender for a datafile without ratings? Something like
> <userid>,<trackid> ?
>
> Thanks in advance.
> Best Regards
> Simon
>
--
*Vignesh Prajapati*
Tel: 9427415949 |
vignesh2066@gmail.com | www.vipras.com.co.in
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