de.tud.ke.mrapp.rulelearning.core.heuristics

Class Heuristic.Comparator<T extends Measurable>

java.lang.Object

de.tud.ke.mrapp.rulelearning.core.heuristics.Heuristic.Comparator<T>

Type Parameters:

T - The type of the Measurables that are compared by the comparator

All Implemented Interfaces:

java.io.Serializable, java.util.Comparator<T>

Enclosing class:

Heuristic

public static class Heuristic.Comparator<T extends Measurable>
extends java.lang.Object
implements java.util.Comparator<T>, java.io.Serializable

A comparator that allows to compare Measurables based on their heuristic values according to a certain Heuristic. This takes into account whether the heuristic is a gain or a loss metric, i.e. confusion matrices with heuristic values that are considered to be better are always sorted before those with heuristic values that are considered to be worse.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
Comparator(@NotNull Heuristic heuristic) Creates a new comparator that allows to compare Measurables.
Comparator(@NotNull Heuristic heuristic, @Nullable TieBreaker<T> tieBreaker) Creates a new comparator that allows to compare Measurables and uses a specific TieBreaker.

Method Summary

Modifier and Type	Method and Description
int	compare(T o1, T o2)

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

Constructor Detail

Comparator

public Comparator(@NotNull
                  @NotNull Heuristic heuristic)

Creates a new comparator that allows to compare Measurables.

Parameters:

heuristic - The heuristic that is used to compare the Measurables

Comparator

public Comparator(@NotNull
                  @NotNull Heuristic heuristic,
                  @Nullable
                  @Nullable TieBreaker<T> tieBreaker)

Creates a new comparator that allows to compare Measurables and uses a specific TieBreaker.

Parameters:

heuristic - The heuristic that is used to compare the Measurables

tieBreaker - The tie breaker that should be used to decide which one of two Measurables that evaluate to the same heuristic value is considered to be better

Method Detail

compare

public int compare(T o1,
                   T o2)

Specified by:

compare in interface java.util.Comparator<T extends Measurable>