org.encog.ml.ea.sort

Class AbstractGenomeComparator

java.lang.Object

org.encog.ml.ea.sort.AbstractGenomeComparator

All Implemented Interfaces:

java.io.Serializable, java.util.Comparator<Genome>, GenomeComparator

Direct Known Subclasses:

MaximizeAdjustedScoreComp, MaximizeScoreComp, MinimizeAdjustedScoreComp, MinimizeScoreComp

public abstract class AbstractGenomeComparator
extends java.lang.Object
implements GenomeComparator, java.io.Serializable

Provides base functionality for comparing genomes. Specifically the ability to add bonuses and penalties.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
AbstractGenomeComparator()

Method Summary

Modifier and Type	Method and Description
double	applyBonus(double value, double bonus) Apply a bonus, this is a simple percent that is applied in the direction specified by the "should minimize" property of the score function.
double	applyPenalty(double value, double bonus) Apply a penalty, this is a simple percent that is applied in the direction specified by the "should minimize" property of the score function.
boolean	isBetterThan(double d1, double d2) Determine if one score is better than the other.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.encog.ml.ea.sort.GenomeComparator

isBetterThan, shouldMinimize

Methods inherited from interface java.util.Comparator

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

Constructor Detail

AbstractGenomeComparator

public AbstractGenomeComparator()

Method Detail

applyBonus

public double applyBonus(double value,
                         double bonus)

Apply a bonus, this is a simple percent that is applied in the direction specified by the "should minimize" property of the score function.

Specified by:

applyBonus in interface GenomeComparator

Parameters:

value - The current value.

bonus - The bonus.

Returns:

The resulting value.

applyPenalty

public double applyPenalty(double value,
                           double bonus)

Apply a penalty, this is a simple percent that is applied in the direction specified by the "should minimize" property of the score function.

Specified by:

applyPenalty in interface GenomeComparator

Parameters:

value - The current value.

bonus - The penalty.

Returns:

The resulting value.

isBetterThan

public boolean isBetterThan(double d1,
                            double d2)

Determine if one score is better than the other.

Specified by:

isBetterThan in interface GenomeComparator

Parameters:

d1 - The first score to compare.

d2 - The second score to compare.

Returns:

True if d1 is better than d2.