public static double max(Vector column) {
double max = -Double.MAX_VALUE;
for (VectorEntry vectorEntry : column) {
max = Math.max(max, vectorEntry.getValue());
}
return max;
}
public static double min(Vector column) {
double min = Double.MAX_VALUE;
for (VectorEntry vectorEntry : column) {
min = Math.min(min, vectorEntry.getValue());
}
return min;
}
public Set<IndexedTermSimilarityRelation> relationsTo(final IndexedTerm target) {
final int targetIndex = target.getIndex();
final LinkedHashSet<IndexedTermSimilarityRelation> result =
new LinkedHashSet<IndexedTermSimilarityRelation>();
// Walk the columns of the matrix to get the relation.
for (VectorEntry entry : this.similarities.getColumn(targetIndex)) {
final double similarity = entry.getValue();
if (similarity != 0.0) {
final IndexedTerm source = this.termIndex.getIndexedTerm(entry.getIndex());
result.add(new IndexedTermSimilarityRelation(source, target, similarity));
}
// else - We ignore zero similarities.
}
return result;
}