List of keysByValue() Examples

Examples of keysByValue()

org.grouplens.lenskit.vectors.SparseVector.keysByValue()
Return the keys of this vector sorted by value. @return A list of keys in nondecreasing order of value. @see #keysByValue(boolean)

Examples of org.grouplens.lenskit.vectors.SparseVector.keysByValue()

        if (predictions == null) {
            return null;
        }


        SparseVector ratings = user.getTestRatings();
        LongList ideal = ratings.keysByValue(true);
        LongList actual = predictions.keysByValue(true);
        double idealGain = computeDCG(ideal, ratings);
        double gain = computeDCG(actual, ratings);
        double score = gain / idealGain;
        context.add(score);

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Examples of org.grouplens.lenskit.vectors.SparseVector.keysByValue()

        if (predictions == null) {
            return null;
        }


        SparseVector ratings = user.getTestRatings();
        LongList ideal = ratings.keysByValue(true);
        LongList actual = predictions.keysByValue(true);
        double idealUtility = computeHLU(ideal, ratings);
        double actualUtility = computeHLU(actual, ratings);
        double u = actualUtility / idealUtility;

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Examples of org.grouplens.lenskit.vectors.SparseVector.keysByValue()

        if (recommendations == null) {
            return null;
        }


        SparseVector ratings = user.getTestRatings();
        LongList ideal = ratings.keysByValue(true);
        if (ideal.size() > listSize) {
            ideal = ideal.subList(0, listSize);
        }
        double idealGain = computeDCG(ideal, ratings);

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