Package si.ijs.kt.clus.util.tools.optimization.de

Class DEAlgorithm

java.lang.Object

si.ijs.kt.clus.util.tools.optimization.OptimizationAlgorithm

si.ijs.kt.clus.util.tools.optimization.de.DEAlgorithm

public class DEAlgorithm
extends OptimizationAlgorithm

Differential evolution algorithm.

Author:

Tea Tusar, Timo Aho Modified for multi target use 10.11.2008

Constructor Summary

Constructors

Constructor	Description
DEAlgorithm(ClusStatManager stat_mgr, OptimizationProblem.OptimizationParameter dataInformation, ClusRuleSet rset)	Constructor for classification and regression optimization.

Method Summary

Modifier and Type	Method	Description
void	checkIfBest(DEIndividual ind)	Checks if the individual is the new best.
ArrayList<Double>	optimize()	Start the actual optimization.
void	OutputLog(DEIndividual ind, int index, PrintWriter wrt)	Print the gene to output file.
void	OutputPop()

Methods inherited from class si.ijs.kt.clus.util.tools.optimization.OptimizationAlgorithm

getSettings, postProcess

Methods inherited from class java.lang.Object

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

Constructor Details

DEAlgorithm

public DEAlgorithm(ClusStatManager stat_mgr,
 OptimizationProblem.OptimizationParameter dataInformation,
 ClusRuleSet rset)

Constructor for classification and regression optimization.

Parameters:

stat_mgr - Statistics

dataInformation - The true values and predictions for the instances. These are used by OptimProbl. The optimization procedure is based on this data information

Method Details

optimize

public ArrayList<Double> optimize()

Description copied from class: OptimizationAlgorithm

Start the actual optimization.

Specified by:

optimize in class OptimizationAlgorithm

Returns:

The weights for the base learners.

OutputPop

public void OutputPop()
               throws IOException

Throws:

IOException

checkIfBest

public void checkIfBest(DEIndividual ind)

Checks if the individual is the new best. Replaces if this is the case.

OutputLog

public void OutputLog(DEIndividual ind,
 int index,
 PrintWriter wrt)

Print the gene to output file.