@Before public void setUp() throws Exception { ItemScorer scorer = PrecomputedItemScorer.newBuilder() .addScore(40, 1, 4.0) .addScore(40, 2, 5.5) .addScore(40, 3, -1) .build(); PreferenceDomain domain = new PreferenceDomain(1, 5, 1); pred = new SimpleRatingPredictor(scorer, domain); unclamped = new SimpleRatingPredictor(scorer, null); }