RyanFeatureVector result = new RyanFeatureVector(-1, -1, null);
TIntDoubleIterator hmIter = hm.iterator();
while (hmIter.hasNext()) {
hmIter.advance();
result = new RyanFeatureVector(hmIter.key(), hmIter.value(), result);
}
return result;
}
public static double dotProduct(RyanFeatureVector fv1, RyanFeatureVector fv2) {