If there are no suitable recommendations for a user, the output will not contain any records related to this user.
Peng Zhang On Aug 25, 2014, at 4:38 PM, Wei Li <[email protected]> wrote: > thanks Peng's answers. Yes, I know this case, but RecommenderJob does not > output these records? > > > On Mon, Aug 25, 2014 at 3:37 PM, Peng Zhang <[email protected]> wrote: > >> 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 <[email protected]> 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 >>
