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From Peng Zhang <pzhang.x...@gmail.com>
Subject Re: RecommenderJob
Date Mon, 25 Aug 2014 08:41:38 GMT
If there are no suitable recommendations for a user, the output will not contain any records
related to this user.


Peng Zhang


On Aug 25, 2014, at 4:38 PM, Wei Li <wei.lee04@gmail.com> wrote:

> thanks Peng's answers. Yes, I know this case, but RecommenderJob does not
> output these records?
> 
> 
> On Mon, Aug 25, 2014 at 3:37 PM, Peng Zhang <pzhang.xjtu@gmail.com> wrote:
> 
>> If an item is not similar to anyone else, and a user only connects with
>> this item, this user doesnt get any recommended items.
>> 
>> This is just one example.
>> 
>> Peng Zhang
>> 
>> --
>> Sent from my iPhone
>> 
>>> On Aug 25, 2014, at 2:22 PM, Wei Li <wei.lee04@gmail.com> wrote:
>>> 
>>> Hi Mahout users:
>>> 
>>>   We have tried the item-based CF recommender with a user_id, item_id,
>>> rating data. while the recommendation output is less than our expected,
>> for
>>> example, if we have 1000 users, the output should have 1000 records, one
>>> for each user, right?
>>> 
>>> Best
>>> Wei
>> 


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