org.hu.hom.api.algorithm.object.impl.selection

Class TruncationSelection

java.lang.Object

org.hu.hom.api.algorithm.object.impl.selection.TruncationSelection

All Implemented Interfaces:

SelectionStrategy<HigherOrderMutant>

public class TruncationSelection
extends java.lang.Object
implements SelectionStrategy<HigherOrderMutant>

Implements selection of n candidates from a population by simply selecting the n candidates with the highest fitness scores (the rest are discarded). A candidate is never selected more than once.

Author:

Daniel Dyer, Asendar

Constructor Summary

Constructors

Constructor and Description
TruncationSelection()

Method Summary

Modifier and Type	Method and Description
java.util.List<HigherOrderMutant>	select(Population<HigherOrderMutant> population, int selectionSize) Select the specified number of candidates from the population.

Methods inherited from class java.lang.Object

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

Constructor Detail

TruncationSelection

public TruncationSelection()

Method Detail

select

public java.util.List<HigherOrderMutant> select(Population<HigherOrderMutant> population,
                                                int selectionSize)

Description copied from interface: SelectionStrategy

Select the specified number of candidates from the population. Implementations may assume that the population is sorted in descending order according to fitness (so the fittest individual is the first item in the list).

It is an error to call this method with an empty or null population.

Specified by:

select in interface SelectionStrategy<HigherOrderMutant>

Parameters:

population - The Population from which to select.

selectionSize - The number of individual selections to make.

Returns:

A list containing the selected candidates.