ai.libs.jaicore.search.algorithms.standard.uncertainty.paretosearch

Class CosinusDistanceComparator<T,V extends java.lang.Comparable<V>>

java.lang.Object

ai.libs.jaicore.search.algorithms.standard.uncertainty.paretosearch.CosinusDistanceComparator<T,V>

All Implemented Interfaces:

java.util.Comparator<Node<T,V>>

public class CosinusDistanceComparator<T,V extends java.lang.Comparable<V>>
extends java.lang.Object
implements java.util.Comparator<Node<T,V>>

Field Summary

Fields

Modifier and Type	Field and Description
double	x1
double	x2

Constructor Summary

Constructors

Constructor and Description
CosinusDistanceComparator(double x1, double x2)

Method Summary

Modifier and Type	Method and Description
int	compare(Node<T,V> first, Node<T,V> second) Compares the cosine distance of two nodes to x.
double	cosineSimilarity(double f, double u) Cosine similarity to x.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Field Detail

x1

public final double x1

x2

public final double x2

Constructor Detail

CosinusDistanceComparator

public CosinusDistanceComparator(double x1,
                                 double x2)

Method Detail

compare

public int compare(Node<T,V> first,
                   Node<T,V> second)

Compares the cosine distance of two nodes to x.

Specified by:

compare in interface java.util.Comparator<Node<T,V extends java.lang.Comparable<V>>>

Parameters:

first -

second -

Returns:

negative iff first < second, 0 iff first == second, positive iff first > second

cosineSimilarity

public double cosineSimilarity(double f,
                               double u)

Cosine similarity to x.

Parameters:

f -

u -

Returns: