rs.add(Ratings.make(4, 5, 1));
rs.add(Ratings.make(4, 7, 1));
rs.add(Ratings.make(4, 10, 1));
EventCollectionDAO dao = new EventCollectionDAO(rs);
LenskitConfiguration config = new LenskitConfiguration();
config.bind(EventDAO.class).to(dao);
config.bind(GlobalItemScorer.class).to(ItemItemGlobalScorer.class);
// this is the default
config.bind(UserVectorNormalizer.class)
.to(DefaultUserVectorNormalizer.class);
config.bind(VectorNormalizer.class)