hex.knn

Class CosineDistance

java.lang.Object

water.Iced<KNNDistance>

hex.knn.KNNDistance

hex.knn.CosineDistance

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable, java.lang.Cloneable, water.Freezable<KNNDistance>

public class CosineDistance
extends KNNDistance

See Also:

Serialized Form

Field Summary

Fields inherited from class hex.knn.KNNDistance

values, valuesLength

Constructor Summary

Constructors

Constructor and Description
CosineDistance()

Method Summary

Modifier and Type	Method and Description
void	calculateValues(double v1, double v2) Method to cumulate partial calculations of distance between two vectors and save it to values array.
double	nom(double v1, double v2) Method to calculate the distance between two points from two vectors.
double	result() Calculate the result from cumulated values.

Methods inherited from class hex.knn.KNNDistance

initializeValues

Methods inherited from class water.Iced

asBytes, clone, copyOver, frozenType, read, readExternal, readJSON, reloadFromBytes, toJsonBytes, toJsonString, write, writeExternal, writeJSON

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CosineDistance

public CosineDistance()

Method Detail

nom

public double nom(double v1,
                  double v2)

Description copied from class: KNNDistance

Method to calculate the distance between two points from two vectors.

Specified by:

nom in class KNNDistance

Parameters:

v1 - value of an item in the first vector

v2 - value of an item in the second vector

calculateValues

public void calculateValues(double v1,
                            double v2)

Description copied from class: KNNDistance

Method to cumulate partial calculations of distance between two vectors and save it to values array.

Specified by:

calculateValues in class KNNDistance

Parameters:

v1 - value of an item in the first vector

v2 - value of an item in the second vector

result

public double result()

Description copied from class: KNNDistance

Calculate the result from cumulated values.

Specified by:

result in class KNNDistance

Returns:

Final distance calculation.