Yes, but those are only estimates for top items. You may not see an estimate for the items in your test set.
Yes also look at Sebastian's suggestion. 2011/10/17 WangRamon <[email protected]>: > > Hi Sean Thanks for the quick reply. I'm running > org.apache.mahout.cf.taste.hadoop.item.RecommenderJob on Hadoop, actually, i > think the result of this job are the estimated prefs for each user, right? So > for the evaluation, i plan to keep some real data, just as you said 5% of > all, and then run computation on the other 95%, then the recommend result is > something like these: User1 like: item2, item3, item4user2 like: item3, > item4, item5 But the real data(the 5%) are:User1 like: item3, item4, > item1User2 like: item5, item6, item7 Then i do a comparation for these two > dataset, am i right? CheersRamon > > Date: Mon, 17 Oct 201
