it works fine if I use this code:
public Recommender buildRecommender(DataModel dataModel) throws
TasteException {
UserSimilarity userSimilarity = new
PearsonCorrelationSimilarity(dataModel);
UserNeighborhood neighborhood =
new NearestNUserNeighborhood(10, userSimilarity, dataModel);
Recommender recommender =
new GenericUserBasedRecommender(dataModel, neighborhood,
userSimilarity);
return recommender;
}
but if I create a dataModel objects here that it doesn't work. I think the
reason is that I have two dataModel objects created and the one that is
passed to the evalautor is not separated.
I get a result of 1.04. Are you sure your data file is right? Should be
using ua.base from that data set.
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