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Posted to user@mahout.apache.org by 邓路 <de...@xueqiu.com> on 2012/06/06 19:25:44 UTC

Can't get correct co-occurrence count

Hi All:

I can't get correct co-occurrence count from the ItemSimilarity job;

The following parameters are used:   --similarityClassname, "SIMILARITY_COOCCURRENCE", "--booleanData", "true", --maxSimilaritiesPerItem, "60"

I run the job on a pseudo distributed hadoop environment.

The scope of uid:   81916  -  88854 

The scope of itemId : 1000156527 - 9999751116

I am not sure if there is any bug in item index algorithm.







Thanks and regards !

Louis Deng

Re: Can't get correct co-occurrence count

Posted by Sean Owen <sr...@gmail.com>.

This isn't much info  ... ? What counts what is your relevant data. Is it
not simply being pruned ?
On Jun 6, 2012 6:26 PM, "邓路" <de...@xueqiu.com> wrote:

> Hi All:
>
> I can't get correct co-occurrence count from the ItemSimilarity job;
>
> The following parameters are used:   --similarityClassname,
> "SIMILARITY_COOCCURRENCE", "--booleanData", "true",
> --maxSimilaritiesPerItem, "60"
>
> I run the job on a pseudo distributed hadoop environment.
>
> The scope of uid:   81916  -  88854
>
> The scope of itemId : 1000156527 - 9999751116
>
> I am not sure if there is any bug in item index algorithm.
>
>
>
>
>
>
>
> Thanks and regards !
>
> Louis Deng