org.encog.ml.ea.sort

Interface GenomeComparator

All Superinterfaces:

java.util.Comparator<Genome>

All Known Implementing Classes:

AbstractGenomeComparator, MaximizeAdjustedScoreComp, MaximizeScoreComp, MinimizeAdjustedScoreComp, MinimizeScoreComp

public interface GenomeComparator
extends java.util.Comparator<Genome>

Defines methods for comparing genomes. Also provides methods to apply bonuses and penalties.

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.
boolean	isBetterThan(Genome genome1, Genome genome2) Determine if one genome is better than the other genome.
boolean	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

Method Detail

applyBonus

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.

Parameters:

value - The current value.

bonus - The bonus.

Returns:

The resulting value.

applyPenalty

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.

Parameters:

value - The current value.

bonus - The penalty.

Returns:

The resulting value.

isBetterThan

boolean isBetterThan(double d1,
                     double d2)

Determine if one score is better than the other.

Parameters:

d1 - The first score to compare.

d2 - The second score to compare.

Returns:

True if d1 is better than d2.

isBetterThan

boolean isBetterThan(Genome genome1,
                     Genome genome2)

Determine if one genome is better than the other genome.

Parameters:

genome1 - The first genome.

genome2 - The second genome.

Returns:

True, if genome1 is better than genome2.

shouldMinimize

boolean shouldMinimize()

Returns:

Returns true if the score should be minimized.