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From Sean Owen <sro...@gmail.com>
Subject Re: User based CF
Date Thu, 10 Nov 2011 08:48:40 GMT
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
<vignesh2066@gmail.com> wrote:
> ya WangRamon I have used Slop based Cf algorithm,its slow and time consuming..
>
> On 11/10/11, WangRamon <ramon_wang@hotmail.com> 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: ssc@apache.org
>>> To: user@mahout.apache.org
>>> 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 |
> vignesh2066@gmail.com | www.vipras.com.co.in
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