pl.edu.agh.age.compute.stream.emas

Class EmasAgentComparators

java.lang.Object

pl.edu.agh.age.compute.stream.emas.EmasAgentComparators

public final class EmasAgentComparators
extends java.lang.Object

Comparators for EMAS agents.

Constructor Summary

Constructors

Modifier	Constructor and Description
private	EmasAgentComparators()

Method Summary

Modifier and Type	Method and Description
private static double	getFitnessProportion(EmasAgent first, EmasAgent second) This method returns probability (from [0 ; 1] range) that the first agent should be chosen as the one having bigger fitness than the second agent.
static java.util.Comparator<EmasAgent>	higherFitness() Ordering from higher to lower fitness.
static java.util.Comparator<EmasAgent>	higherFitnessProbabilistic() Higher fitness probabilistic comparator, where agents have winning probability proportional to their fitness.
static java.util.Comparator<EmasAgent>	lowerFitness() Ordering from lower to higher fitness.
static java.util.Comparator<EmasAgent>	lowerFitnessProbabilistic() Lower fitness probabilistic comparator, where agents have winning probability inversely proportional to their fitness.

Methods inherited from class java.lang.Object

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

Constructor Detail

EmasAgentComparators

private EmasAgentComparators()

Method Detail

higherFitness

public static java.util.Comparator<EmasAgent> higherFitness()

Ordering from higher to lower fitness.

lowerFitness

public static java.util.Comparator<EmasAgent> lowerFitness()

Ordering from lower to higher fitness.

higherFitnessProbabilistic

public static java.util.Comparator<EmasAgent> higherFitnessProbabilistic()

Higher fitness probabilistic comparator, where agents have winning probability proportional to their fitness.

lowerFitnessProbabilistic

public static java.util.Comparator<EmasAgent> lowerFitnessProbabilistic()

Lower fitness probabilistic comparator, where agents have winning probability inversely proportional to their fitness.

getFitnessProportion

private static double getFitnessProportion(EmasAgent first,
                                           EmasAgent second)

This method returns probability (from [0 ; 1] range) that the first agent should be chosen as the one having bigger fitness than the second agent.

Parameters:

first - the first agent

second - the second agent

Returns:

the fitness proportion