Examples of org.grouplens.lenskit.vectors.MutableSparseVector.unset()

Class org.grouplens.lenskit.vectors.MutableSparseVector

Examples of org.grouplens.lenskit.vectors.MutableSparseVector.unset()

org.grouplens.lenskit.vectors.MutableSparseVector.unset()
Unset the value for a key. The key remains in the key domain, but is removed from the key set. @param key The key to unset. @throws IllegalArgumentException if the key is not in the key domain.

                assert currentRow.containsKey(colItem);
                currentRow.set(colItem, similarity.similarity(rowItem, vec1, colItem, vec2));
            }


            // Remove the current item (it is not its own neighbor)
            currentRow.unset(rowItem);


            // Normalize and truncate the row
            MutableSparseVector normalized = rowNormalizer.normalize(rowItem, currentRow, null);
            truncator.truncate(normalized);

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            Preference p = r.getPreference();
            if (p != null) {
                // save the preference
                msv.set(id, p.getValue());
            } else {
                msv.unset(id);
            }
        }


        return msv;
    }

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