Of course it's not meaningless. They provide a basis for ranking items, so you can return top-K recommendations. If it's normally based on similarity and ratings -- and you have no ratings -- similarity is of course the only thing you can base the result on.
On Tue, Apr 16, 2013 at 3:36 PM, Agata Filiana <a.filian...@gmail.com> wrote: > Well right now, I am only using one boolean file -just from from this > history of reading. > So you are saying the values generated in > the GenericBooleanPrefUserBasedRecommender is actually useless in this case > of no ratings and that it is merely based on the similarity only?
