List of mutableCopy() Examples

Examples of mutableCopy()

org.grouplens.lenskit.vectors.SparseVector.mutableCopy()
Return a mutable copy of this sparse vector. The key domain of the mutable vector will be the same as this vector's key domain. @return A mutable sparse vector which can be modified without modifyingthis vector.

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

        if (history == null) {
            history = History.forUser(user);
        }
        SparseVector summary = summarizer.summarize(history);
        VectorTransformation transform = normalizer.makeTransformation(user, summary);
        MutableSparseVector normed = summary.mutableCopy();
        transform.apply(normed);


        scores.clear();
        algorithm.scoreItems(model, normed, scores, scorer);

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

        Cursor<UserHistory<Event>> users = userEventDAO.streamEventsByUser();
        try {
            for (UserHistory<Event> user : users) {
                long uid = user.getUserId();
                SparseVector summary = userSummarizer.summarize(user);
                MutableSparseVector normed = summary.mutableCopy();
                normalizer.normalize(uid, summary, normed);


                for (VectorEntry rating : normed) {
                    final long item = rating.getKey();
                    // get the item's rating accumulator

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

    public void testSelfSimilarity() {
        long keys[] = {1, 5, 7};
        double values[] = {1.5, 2.5, 2};
        SparseVector v = MutableSparseVector.wrap(keys, values).freeze();
        assertThat(sim.similarity(v, v), closeTo(1, EPSILON));
        assertThat(sim.similarity(v, v.mutableCopy().freeze()), closeTo(1, EPSILON));
    }


    @Test
    public void testDisjointSimilarity() {
        long keys[] = {1, 5, 7};

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