edu.stanford.nlp.linalg
Interface Metric

All Known Implementing Classes:

AbstractMetric

public interface Metric

Interface for a set of classes which have a metric function distance(Array i, Array j), which returns a double giving the distance between the two vectors

Method Summary

double	distance(Array i, Array j) returns the distance between i and j according to the metric defined in this class
double	norm(Array i) returns the norm of a vector in this metric
Array	normalize(Array i) normalizes vector i to have length 1 in the norm defined in this class

Method Detail

norm

public double norm(Array i)

returns the norm of a vector in this metric

distance

public double distance(Array i,
                       Array j)

returns the distance between i and j according to the metric defined in this class

normalize

public Array normalize(Array i)

normalizes vector i to have length 1 in the norm defined in this class