If an item is not similar to anyone else, and a user only connects with this item, this user doesnt get any recommended items.
This is just one example. Peng Zhang -- Sent from my iPhone > On Aug 25, 2014, at 2:22 PM, Wei Li <wei.le...@gmail.com> wrote: > > Hi Mahout users: > > We have tried the item-based CF recommender with a user_id, item_id, > rating data. while the recommendation output is less than our expected, for > example, if we have 1000 users, the output should have 1000 records, one > for each user, right? > > Best > Wei
