art.cs
Class Classifier

java.lang.Object
  art.ga.Chromosome
      art.cs.Classifier

All Implemented Interfaces:

Author, GaSolution

public class Classifier

extends Chromosome

implements Author

The Classifier consists in a string of fixed length and binary alphabet. The classifier is the basic object of a CS and is divided in two part: action and condition.

From a internal point of view it is implemented as a chromosome with 2 genomes, the genome 0 is the condition part and the genome 1 is the action part.

Author:

Marco Lamieri and Gianluigi Ferraris

Constructor Summary

Classifier(CsConfiguration configuration, Population population)
Constructor of the class.

Method Summary

void	addActivatorToList(Author author) Add the author to the activators list.
void	clearActivatorsList() Clear the activators list.
void	collect(double money) The implementing class collect the money payed by the winner of the auction to it's author.
double	computeBid() Compute the bid for auction if not already computed.
Gene[]	getAction() Return the action part (genome 1)
java.util.ArrayList	getActivatorsList() List of message that activate the classifier.
java.lang.String	getAlleleWithWildcard(int a) Return the allele in a printable format.
double	getBid() Get the bid for auction, compute it first.
Gene[]	getCondition() Return the condition part (genome 0)
double	getSpecificity() Specificity of the chromosome.
void	initializeChromosome() Initialize the Chromosome with generated genomes.
boolean	isBidComputed() Check if bid has been computed.
boolean	isSpecificityEvaluated() Check if specificity has been computed.
double	payBidTax() Pay bid tax for auction.
double	payLifeTax() Pay life tax at every cycle.
void	payToActivators() Pay bid/numberOfActivators to each activator of the classifier (BucketBrigade algorithm)
void	print() Print to screen some Chromosome's information.
void	setAction(Gene[] action) Set the action part (genome 1).
void	setBidComputed(boolean bidComputed) Set bid computed.
void	setCondition(Gene[] condition) Set the condition part (genome 0).
void	setSpecificityEvaluated(boolean specificityEvaluated) Set specificity evaluated.

Methods inherited from class art.ga.Chromosome

getAge, getBody, getChild, getFitness, getGenome, getMyPopulation, getNumberOfRules, getRescaledFitness, getRule, getSelectedForDie, getSelectedForReproduction, isFitnessEvaluated, print, setAge, setBody, setChild, setFitness, setFitnessEvaluated, setRescaledFitness, setRescaledFitnessEvaluated, setSelectedForDie, setSelectedForReproduction

Methods inherited from class java.lang.Object

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

Constructor Detail

Classifier

public Classifier(CsConfiguration configuration,
                  Population population)

Constructor of the class.

Parameters:

configuration - COnfiguration.

population - Population belonging to.

Method Detail

getActivatorsList

public java.util.ArrayList getActivatorsList()

List of message that activate the classifier. (BucketBrigade algorithm)

Returns:

List of message.

payToActivators

public void payToActivators()

Pay bid/numberOfActivators to each activator of the classifier (BucketBrigade algorithm)

collect

public void collect(double money)

Description copied from interface: Author

The implementing class collect the money payed by the winner of the auction to it's author.

Specified by:

collect in interface Author

Parameters:

money - Money collected.

payBidTax

public double payBidTax()

Pay bid tax for auction.

Returns:

if payed.

payLifeTax

public double payLifeTax()

Pay life tax at every cycle.

Returns:

if payed.

clearActivatorsList

public void clearActivatorsList()

Clear the activators list.

getAction

public Gene[] getAction()

Return the action part (genome 1)

Returns:

Returns the action.

computeBid

public double computeBid()

Compute the bid for auction if not already computed.

Returns:

Returns the bid.

getBid

public double getBid()

Get the bid for auction, compute it first.

Returns:

bid.

getCondition

public Gene[] getCondition()

Return the condition part (genome 0)

Returns:

Returns the condition.

getSpecificity

public double getSpecificity()

Specificity of the chromosome. It is computed as spec=(wildcardNumber-length)/length.

Returns:

Returns the specificity.

setAction

public void setAction(Gene[] action)

Set the action part (genome 1).

Parameters:

action - The action to set.

setCondition

public void setCondition(Gene[] condition)

Set the condition part (genome 0).

Parameters:

condition - The condition to set.

addActivatorToList

public void addActivatorToList(Author author)

Add the author to the activators list.

Parameters:

author - author to add.

isSpecificityEvaluated

public boolean isSpecificityEvaluated()

Check if specificity has been computed.

Returns:

Returns the specificityEvaluated.

setSpecificityEvaluated

public void setSpecificityEvaluated(boolean specificityEvaluated)

Set specificity evaluated.

Parameters:

specificityEvaluated - The specificityEvaluated to set.

isBidComputed

public boolean isBidComputed()

Check if bid has been computed.

Returns:

Returns the bidComputed.

setBidComputed

public void setBidComputed(boolean bidComputed)

Set bid computed.

Parameters:

bidComputed - The bidComputed to set.

initializeChromosome

public void initializeChromosome()

Description copied from class: Chromosome

Initialize the Chromosome with generated genomes.

Overrides:

initializeChromosome in class Chromosome

print

public void print()

Description copied from class: Chromosome

Print to screen some Chromosome's information.

Specified by:

print in interface GaSolution

Overrides:

print in class Chromosome

getAlleleWithWildcard

public java.lang.String getAlleleWithWildcard(int a)

Return the allele in a printable format. Wildcard are displayed as # and not as "2".

Parameters:

a - String to verify (use getAllele()).

Returns:

Display value.