Not really. See my previous posting.
The best way to get fast recommendations is to use an item-based
recommender. Pre-computing recommendations for all users is not usually a
win because you wind up doing a lot of wasted work and you still don't have
anything for new users who appear between refreshes. If you build up a
service to handle the new users, you might as well just serve all users
from that service so that you get up to date recommendations for everyone.
There IS a large off-line computation. But that doesn't produce
recommendations for USER's. It typically produces recommendations for
ITEM's. Then those item-item recommendations are combined to produce
recommendations for users.
On Sun, Mar 25, 2012 at 12:28 PM, Razon, Oren <[EMAIL PROTECTED]> wrote: