org.apache.ignite.ml.genetic

Class CrossOverJob

java.lang.Object

org.apache.ignite.compute.ComputeJobAdapter

org.apache.ignite.ml.genetic.CrossOverJob

All Implemented Interfaces:

Serializable, Callable<Object>, ComputeJob

public class CrossOverJob
extends ComputeJobAdapter

Responsible for performing 'crossover' genetic operation for 2 X 'parent' chromosomes.

It relies on the GAConfiguration.getCrossOverRate() to determine probability rate of crossover for pair of chromosome.
CrossOverJob will randomly pick a start index j in Chromosome.getGenes[] and continue swapping until end of genes[] array.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
CrossOverJob(Long key1, Long key2, double crossOverRate)

Method Summary

Modifier and Type	Method and Description
Object	execute() Perform crossover operation

Methods inherited from class org.apache.ignite.compute.ComputeJobAdapter

argument, arguments, call, cancel, isCancelled, setArguments

Methods inherited from class java.lang.Object

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

Constructor Detail

CrossOverJob

public CrossOverJob(Long key1,
                    Long key2,
                    double crossOverRate)

Parameters:

key1 - Primary key for 1st chromosome

key2 - Primary key for 2nd chromosome

crossOverRate - CrossOver rate

Method Detail

execute

public Object execute()
               throws IgniteException

Perform crossover operation

Returns:

Job execution result (possibly null). This result will be returned in ComputeJobResult.getData() method passed into ComputeTask.result(ComputeJobResult, List) task method on caller node.

Throws:

IgniteException - If job execution caused an exception. This exception will be returned in ComputeJobResult.getException() method passed into ComputeTask.result(ComputeJobResult, List) task method on caller node. If execution produces a RuntimeException or Error, then it will be wrapped into IgniteCheckedException.