On Mon, Aug 22, 2011 at 8:21 AM, Daniel Xiaodan Zhou <[email protected]>wrote:
> I think this is reasonable. Some suggestions:
>
> 1. Instead of using the total number of interactions as cell value, map the
> number to a 1-5 score based on histogram
>
I would map to {0,1} rather than a fake rating scale.
> 2. Use item-item algorithm, which is supposed to work for sparse data.
>
sort of works with sparse data.
> 3. I think the best algorithm to handle sparse data is the SVD algorithm.
>
Yes.
