Hi All:
Does anybody know this? and give me some hints? it is a little bit
emergent. many thanks.
Best
Wei
On Wed, Sep 24, 2014 at 2:06 PM, Wei Li <[email protected]> wrote:
> Hi All:
>
> In RowSimilairtyJob, I see the main functionality of countObservations
> job is to aggregate the number of users for each item, is that right? if
> so, why not directly calculate the counts, just like the WordCount logic.
> In current implementations, we initialized a RandomAccessSparseVector,
> which may cause the OutOfMemory issue when the number of users is large. Am
> I understanding correctly? thanks.
>
>
> Best
> Wei
>
