Package org.grouplens.lenskit.data.pref

Examples of org.grouplens.lenskit.data.pref.PreferenceDomainBuilder

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        rs.add(Ratings.make(3, 9, 4));

        LenskitConfiguration config = new LenskitConfiguration();
        config.bind(EventDAO.class).to(EventCollectionDAO.create(rs));
        config.bind(ItemScorer.class).to(SlopeOneItemScorer.class);
        config.bind(PreferenceDomain.class).to(new PreferenceDomainBuilder(1, 5)
                                                       .setPrecision(1)
                                                       .build());
        ItemScorer predictor = LenskitRecommenderEngine.build(config)
                                                       .createRecommender()
                                                       .getItemScorer();
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        rs.add(Ratings.make(3, 7, 1.5));

        LenskitConfiguration config = new LenskitConfiguration();
        config.bind(EventDAO.class).to(EventCollectionDAO.create(rs));
        config.bind(ItemScorer.class).to(SlopeOneItemScorer.class);
        config.bind(PreferenceDomain.class).to(new PreferenceDomainBuilder(1, 5)
                                                       .setPrecision(1)
                                                       .build());
        ItemScorer predictor = LenskitRecommenderEngine.build(config)
                                                       .createRecommender()
                                                       .getItemScorer();
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        rs.add(Ratings.make(3, 9, 4));

        LenskitConfiguration config = new LenskitConfiguration();
        config.bind(EventDAO.class).to(EventCollectionDAO.create(rs));
        config.bind(ItemScorer.class).to(WeightedSlopeOneItemScorer.class);
        config.bind(PreferenceDomain.class).to(new PreferenceDomainBuilder(1, 5)
                                                       .setPrecision(1)
                                                       .build());
        ItemScorer predictor = LenskitRecommenderEngine.build(config)
                                                       .createRecommender()
                                                       .getItemScorer();
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        rs.add(Ratings.make(3, 7, 1.5));

        LenskitConfiguration config = new LenskitConfiguration();
        config.bind(EventDAO.class).to(EventCollectionDAO.create(rs));
        config.bind(ItemScorer.class).to(WeightedSlopeOneItemScorer.class);
        config.bind(PreferenceDomain.class).to(new PreferenceDomainBuilder(1, 5)
                                                       .setPrecision(1)
                                                       .build());
        ItemScorer predictor = LenskitRecommenderEngine.build(config)
                                                       .createRecommender()
                                                       .getItemScorer();
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     * @param args The arguments.
     * @return The preference domain.
     * @see org.grouplens.lenskit.data.pref.PreferenceDomain
     */
    public PreferenceDomain prefDomain(Map<String,Object> args) {
        return GroovyUtils.buildObject(new PreferenceDomainBuilder(), args);
    }
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Related Classes of org.grouplens.lenskit.data.pref.PreferenceDomainBuilder

  • org.grouplens.lenskit.config.BindingDSL
  • org.grouplens.lenskit.slopeone.SlopeOneItemScorerTest
  • org.grouplens.lenskit.slopeone.WeightedSlopeOneItemScorerTest
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