You mean "slope-one"? That is a non-distributed algorithm. It also slows down as the number of items, not users, increases, so would not be helpful.
He is asking about distributed Hadoop-based algorithms though. There are certainly user-based non-distributed algorithms. On Thu, Nov 10, 2011 at 8:32 AM, VIGNESH PRAJAPATI <[email protected]> wrote: > ya WangRamon I have used Slop based Cf algorithm,its slow and time consuming.. > > On 11/10/11, WangRamon <[email protected]> wrote: >> >> Thanks Sebastian, can i assume that if there are more items than users, item >> based CF will be slow. >> > Date: Thu, 10 Nov 2011 08:43:53 +0100 >>> From: [email protected] >>> To: [email protected] >>> Subject: Re: User based CF >>> >>> There is no such implementation. Literature suggests that an item-based >>> approach is usually both faster and more accurate. >>> >>> --sebastian >>> >>> >>> On 10.11.2011 08:34, WangRamon wrote: >>> > >>> > >>> > >>> > >>> > Hi All Dose mahout provide a user based CF implementation on Hadoop? >>> > Currently i only see an item based hadoop implementations. Thanks. >>> > CheersRamon >>> >> > > > -- > > > *Vignesh Prajapati* > Tel: 9427415949 | > [email protected] | www.vipras.com.co.in > MYTK [image: Facebook] <https://www.facebook.com/vigs143> [image: > Twitter]<http://twitter.com/#%21/vigs143> [image: > LinkedIn] <http://www.linkedin.com/pub/vignesh-prajapati/37/756/46a> [image: > about.me] > <http://www.way4fun.tk><http://r1.wisestamp.com/r/landing?promo=7&dest=http%3A%2F%2Fwww.wisestamp.com%2Femail-install%3Futm_source%3Dextension%26utm_medium%3Demail%26utm_campaign%3Dpromo_7> >
