On which criteria items are pruned ?
What kind of further information do you need ?
On 10/30/2012 03:59 PM, Sean Owen wrote:
Probably because the item-based one prunes items from consideraiton by
default. You'd have to provide a lot more information to say more.
On Tue, Oct 30, 2012 at 2:55 PM, yamo93 <[email protected]> wrote:
Hi,
My input file contains more items than users, so according to the book
MAI, i expect that user-based recommendation is faster than item-based
recommendation but it's not what i see : item-based is 5 times faster.
Here's some characteristics of my input file
Nb users:258
Nb items:56756
Nb lines:344816
Have you some explanations ?
Thks,
Yann.
