Merge "Update suggestion ranking model coefficients." into oc-dr1-dev

    // by training a binary classifier to detect the clicked items. The higher the obtained

    // relevance metric, the higher chance of getting clicked.

    private static final Map<String, Double> WEIGHTS = new HashMap<String, Double>() {{

        put(SuggestionFeaturizer.FEATURE_IS_SHOWN, 4.07506758256);

        put(SuggestionFeaturizer.FEATURE_IS_DISMISSED, 2.11535473578);

        put(SuggestionFeaturizer.FEATURE_IS_CLICKED, 1.21885461304);

        put(SuggestionFeaturizer.FEATURE_TIME_FROM_LAST_SHOWN, 3.18832024515);

        put(SuggestionFeaturizer.FEATURE_TIME_FROM_LAST_DISMISSED, 1.09902706645);

        put(SuggestionFeaturizer.FEATURE_TIME_FROM_LAST_CLICKED, 0.262631082877);

        put(SuggestionFeaturizer.FEATURE_SHOWN_COUNT, -220.4361849);

        put(SuggestionFeaturizer.FEATURE_IS_SHOWN, 5.05140842519);

        put(SuggestionFeaturizer.FEATURE_IS_DISMISSED, 2.29641455171);

        put(SuggestionFeaturizer.FEATURE_IS_CLICKED, -2.98812233623);

        put(SuggestionFeaturizer.FEATURE_TIME_FROM_LAST_SHOWN, 5.02807250202);

        put(SuggestionFeaturizer.FEATURE_TIME_FROM_LAST_DISMISSED, 2.49589700842);

        put(SuggestionFeaturizer.FEATURE_TIME_FROM_LAST_CLICKED, -4.3377039948);

        put(SuggestionFeaturizer.FEATURE_SHOWN_COUNT, -2.35993512546);

    }};

    private final SuggestionFeaturizer mSuggestionFeaturizer;