ec.cgp.problems
Class ProblemBreastCancerY

java.lang.Object
  ec.Problem
      ec.cgp.problems.ProblemCGP
          ec.cgp.problems.ClassificationProblem
              ec.cgp.problems.ProblemBreastCancerY

All Implemented Interfaces:

ec.Prototype, ec.Setup, ec.simple.SimpleProblemForm, java.io.Serializable, java.lang.Cloneable

public class ProblemBreastCancerY
extends ClassificationProblem

Breast Cancer (Yugoslavia) classification problem. Data set originates from: http://archive.ics.uci.edu/ml/datasets/Breast+Cancer. Data file used comes from Weka: http://www.cs.waikato.ac.nz/ml/weka/ The task is to classify tumors as "no recurrence events" or "recurrence events" based on nine numeric and nominal measurements.

Author:

David Oranchak, doranchak@gmail.com, http://oranchak.com

See Also:

Serialized Form

Nested Class Summary

static class

ProblemBreastCancerY.BreastCancerYRecord Record to represent a classification instance.

Field Summary

Fields inherited from class ec.cgp.problems.ClassificationProblem

data, P_FILE, P_TEST, test, testSet, trainingSet

Fields inherited from class ec.cgp.problems.ProblemCGP

constantMax, constantMin, constants, numConstants, P_CONSTANT_MAX, P_CONSTANT_MIN, P_CONSTANTS

Fields inherited from class ec.Problem

P_PROBLEM

Constructor Summary

ProblemBreastCancerY()

Method Summary

(package private) boolean[]	compare(java.lang.Object[] outputs, Record rec) Determine the result of classification by comparing the evaluated outputs from our Cartsesian Genetic Program to the instance class(es) specified somewhere in the given Record.
(package private) Record	makeRecord(java.lang.String line) Interpret a line from the data file into a Record instance.
(package private) void	setInputs(java.lang.Object[] inputs, Record rec) Obtain the inputs from the data record.

Methods inherited from class ec.cgp.problems.ClassificationProblem

eval, evaluate, makeRecords, setup

Methods inherited from class ec.cgp.problems.ProblemCGP

describe, initConstants

Methods inherited from class ec.Problem

canEvaluate, clone, closeContacts, defaultBase, finishEvaluating, initializeContacts, prepareToEvaluate, reinitializeContacts

Methods inherited from class java.lang.Object

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

Constructor Detail

ProblemBreastCancerY

public ProblemBreastCancerY()

Method Detail

makeRecord

Record makeRecord(java.lang.String line)

Interpret a line from the data file into a Record instance.

Specified by:

makeRecord in class ClassificationProblem

Parameters:

line - The comma-delimited line from the data file.

Returns:

an instance of the Record.

setInputs

void setInputs(java.lang.Object[] inputs,
               Record rec)

Obtain the inputs from the data record.

Specified by:

setInputs in class ClassificationProblem

Parameters:

inputs - input array to set

rec - record to set values from

compare

boolean[] compare(java.lang.Object[] outputs,
                  Record rec)

Determine the result of classification by comparing the evaluated outputs from our Cartsesian Genetic Program to the instance class(es) specified somewhere in the given Record.

Specified by:

compare in class ClassificationProblem

Parameters:

outputs - The output vector resulting from evaluation of the CGP.

rec - The record from which to compare classification results.

Returns:

A boolean vector indicating sucess of classification.