org.apache.mahout.common.distance
Interfaces 
DistanceMeasure
Classes 
ChebyshevDistanceMeasure
CosineDistanceMeasure
EuclideanDistanceMeasure
MahalanobisDistanceMeasure
ManhattanDistanceMeasure
MinkowskiDistanceMeasure
SquaredEuclideanDistanceMeasure
TanimotoDistanceMeasure
WeightedDistanceMeasure
WeightedEuclideanDistanceMeasure
WeightedManhattanDistanceMeasure