Hello - I noticed something that I think might be a problem with the userSimilarity computation in the AbstractSimilarity class. After updating the running sums, the method checks the value of compare and moves to the next preference value in the list that has the smaller item index, or both if they are both on the same item. It breaks out of the loop if it is at the end of the preference list(s) that it needs to get the next value of. The problem is that it doesn't take into account if there is a preference inferrer -- if it is at the end of one of the lists, it will break out of the loop even if there is a preference inferrer. This results in ignoring the rest of the items in the other users preferences.
Am I missing something or does this need to be corrected? Thanks for your help, -Abigail
