org.uncommons.watchmaker.framework.islands
Class RingMigration

java.lang.Object
  org.uncommons.watchmaker.framework.islands.RingMigration

All Implemented Interfaces:

Migration

public class RingMigration
extends Object
implements Migration

Migrates a fixed number of individuals from each island to the adjacent island. Operates as if the islands are arranged in a ring with migration occurring in a clockwise direction. The individuals to be migrated are chosen completely at random.

Author:

Daniel Dyer

Constructor Summary

RingMigration()

Method Summary

<T> void

migrate(List<List<EvaluatedCandidate<T>>> islandPopulations, int migrantCount, Random rng) Migrates a fixed number of individuals from each island to the adjacent island.

Methods inherited from class java.lang.Object

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

Constructor Detail

RingMigration

public RingMigration()

Method Detail

migrate

public <T> void migrate(List<List<EvaluatedCandidate<T>>> islandPopulations,
                        int migrantCount,
                        Random rng)

Migrates a fixed number of individuals from each island to the adjacent island. Operates as if the islands are arranged in a ring with migration occurring in a clockwise direction. The individuals to be migrated are chosen completely at random.

Specified by:

migrate in interface Migration

Type Parameters:

T - The type of entity being evolved.

Parameters:

islandPopulations - A list of the populations of each island.

migrantCount - The number of (randomly selected) individuals to be moved on from each island.

rng - A source of randomness.