infosapient.resolution
Class FzyResolutionMethod

java.lang.Object
  |
  +--infosapient.system.ObservableImpl
        |
        +--infosapient.system.FzySystemComponent
              |
              +--infosapient.resolution.FzyResolutionMethod

Direct Known Subclasses:

FzyResAVERAGE_MAXIMUM, FzyResCENTROID, FzyResMAXIMUM, FzyResMAXPLATEAU

public abstract class FzyResolutionMethod

extends FzySystemComponent

implements java.io.Serializable, XMLOutput

FzyResolutionMethod.java

Version:

$Revision: 1.1.1.1 $ FzyResolutionMethod implements the methods required for knowledgebase solution.

See Also:

Serialized Form

Field Summary

protected double	domainValue
protected int	edgeCnt
private int[]	edges
protected int	i
protected int	indexForDefuzz
protected static int	LEFT
protected double	mbrValue
(package private) static java.lang.String	PREFIX
protected static int	RIGHT
(package private) static long	serialVersionUID
private FzyKnowledgebase	theKB
protected int	VECMAX

Fields inherited from class infosapient.system.FzySystemComponent

DEBUG_, myID, name, pcs, serialVersionUID, trace, vcs

Fields inherited from class infosapient.system.ObservableImpl

arr, changed, obs, serialVersionUID

Constructor Summary

FzyResolutionMethod()

Method Summary

protected java.util.Vector	_findPlateau(FzySet fset) Return the int array representing the left and right hand side of the plateau in the membership function.
void	applyAlfa(FzySet fset, int type)
FzySet	applyHedge(FzySet inputSet, FzyHedge hedge) Modifies the shape of a sets surface causing a change in the membership function
double	domainValue()
void	domainValue(double sca)
double	farEdge(FzySet fset) Find the far edge of the plateau
protected int[]	findPlateau(FzySet fset) Return the int array representing the left and right hand side of the plateau in the membership function.
double	getDomainForLeftEdge(FzySet fset) find the left edge of the specified set.
double	getDomainValue() Insert the method's description here.
int	getEdgeCnt() Insert the method's description here.
int[]	getEdges() Insert the method's description here.
FzyKnowledgebase	getKB()
int	getLeftEdge() Return the current left edge of set.
double	getMbrValue() Insert the method's description here.
int	getRightEdge() Return the right edge of the fuzzy set.
double	getScalarUsing(FzySet fset, int inx)
protected void	issueWarning(FzySet fset, double height, int pCount)
double	monotonicSolution(FzySet fromSet, FzySet toSet, double fromDomValue) Calculate a solution for a monotonic space.
double	OR(double truth_1, double truth_2) Implements the standard Zadeh OR operator.
int	plateauCount(FzySet fset, double height)
void	printOn(java.io.Writer outWriter, int nTabs)
static FzyResolutionMethod	ResolutionMethodFactory(java.lang.String name) Resolution method factory Creation date: (1/26/00 12:17:44 PM)
double	resolveToScalar(FzySet aSet) The method to be used for those who wish to defuzzify a given set.
protected abstract double	resolveUsing(FzySet aSet) The method used by subclasses of FzyResolutionMethod to defuzzify a given set.
void	setDomainValue(double newDomainValue) Insert the method's description here.
void	setEdgeCnt(int newEdgeCnt) Insert the method's description here.
void	setEdges(int[] newEdges) set the found edges of a set.
void	setKB(FzyKnowledgebase akb)
void	setLeftEdge(int l) Set the current left edge of set.
void	setMbrValue(double newMbrValue) Insert the method's description here.
void	setRightEdge(int r) Set the current Right edge of set.
java.lang.String	toString()
java.lang.StringBuffer	toXML() Represent this resolution method as xml tags.
java.lang.StringBuffer	toXML(int nTabs) Represent this resolution method as xml tags.

Methods inherited from class infosapient.system.FzySystemComponent

addPropertyChangeListener, addVetoableChangeListener, equals, getID, getName, getPropertyChangeSupport, getVetoableChangeSupport, hashCode, removePropertyChangeListener, removeVetoableChangeListener, setID, setName

Methods inherited from class infosapient.system.ObservableImpl

addObserver, clearChanged, containsObserver, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers, setChanged

Methods inherited from class java.lang.Object

, clone, finalize, getClass, notify, notifyAll, registerNatives, wait, wait, wait

Field Detail

serialVersionUID

static final long serialVersionUID

PREFIX

static final java.lang.String PREFIX

VECMAX

protected int VECMAX

edges

private int[] edges

theKB

private FzyKnowledgebase theKB

LEFT

protected static final int LEFT

RIGHT

protected static final int RIGHT

edgeCnt

protected int edgeCnt

domainValue

protected double domainValue

mbrValue

protected double mbrValue

indexForDefuzz

protected int indexForDefuzz

i

protected int i

Constructor Detail

FzyResolutionMethod

public FzyResolutionMethod()

Method Detail

_findPlateau

protected java.util.Vector _findPlateau(FzySet fset)
                                 throws FzySystemException

Return the int array representing the left and right hand side of the plateau in the membership function. If the right and left hand indexes are inside the fuzzy set, then this is a double edged plateau. (Edge count = 2)

Parameters:

FzySet -

Returns:

Vector the plateau locations

Throws:

FzySystemException - - if the membership of this set is zero, or Set index error.

applyAlfa

public void applyAlfa(FzySet fset,
                      int type)

applyHedge

public FzySet applyHedge(FzySet inputSet,
                         FzyHedge hedge)

Modifies the shape of a sets surface causing a change in the membership function

Parameters:

FzySet - the input set

FzyHedge - the FzyHedge to be applied

Returns:

FzySet the fzySet with hedge applied to the membership space.

domainValue

public double domainValue()

domainValue

public void domainValue(double sca)

farEdge

public double farEdge(FzySet fset)

Find the far edge of the plateau

Parameters:

FzySet - - The (solutionset) set containing the plateau to find the edge(s)

Returns:

double - the domain value of the far edge.

findPlateau

protected int[] findPlateau(FzySet fset)
                     throws FzySystemException

Return the int array representing the left and right hand side of the plateau in the membership function. If the right and left hand indexes are inside the fuzzy set, then this is a double edged plateau. (Edge count = 2)

Parameters:

FzySet -

Returns:

int[]

Throws:

FzySystemException - - if the membership of this set is zero, or Set index error.

getDomainForLeftEdge

public double getDomainForLeftEdge(FzySet fset)

find the left edge of the specified set.

Parameters:

FzySet - - the fuzzy set to be examined for left and right edges.

Returns:

double - the domain value of the near edge.

getDomainValue

public double getDomainValue()

Insert the method's description here. Creation date: (04/16/01 10:32:22 AM)

Returns:

double

getEdgeCnt

public int getEdgeCnt()

Insert the method's description here. Creation date: (04/16/01 10:32:22 AM)

Returns:

int

getEdges

public int[] getEdges()

Insert the method's description here. Creation date: (04/16/01 10:32:22 AM)

Returns:

int[]

getKB

public FzyKnowledgebase getKB()

getLeftEdge

public int getLeftEdge()

Return the current left edge of set. Creation date: (04/16/01 10:33:09 AM)

Returns:

int

getMbrValue

public double getMbrValue()

Insert the method's description here. Creation date: (04/16/01 10:32:22 AM)

Returns:

double

getRightEdge

public int getRightEdge()

Return the right edge of the fuzzy set. Creation date: (04/16/01 10:33:09 AM)

Returns:

int

getScalarUsing

public double getScalarUsing(FzySet fset,
                             int inx)
                      throws java.lang.IllegalArgumentException

issueWarning

protected void issueWarning(FzySet fset,
                            double height,
                            int pCount)

monotonicSolution

public double monotonicSolution(FzySet fromSet,
                                FzySet toSet,
                                double fromDomValue)
                         throws FzySystemException

Calculate a solution for a monotonic space. returns a double representing an output scalar within the toSet.

Parameters:

FzySet - 'fromSet' -- the set the membership value is taken.

FzySet - 'toSet' the set to which the membership value from the first set is to be mapped.

double - the domain value for the 'fromSet'

Returns:

double the solution domain value.

OR

public double OR(double truth_1,
                 double truth_2)

Implements the standard Zadeh OR operator.

Parameters:

double - the membership value_1

double - the membership value_2

Returns:

double the Math.max(value_1, value_2)

plateauCount

public int plateauCount(FzySet fset,
                        double height)

printOn

public void printOn(java.io.Writer outWriter,
                    int nTabs)
             throws java.io.IOException

Overrides:

printOn in class FzySystemComponent

ResolutionMethodFactory

public static FzyResolutionMethod ResolutionMethodFactory(java.lang.String name)
                                                   throws java.lang.IllegalAccessException,
                                                          java.lang.IllegalArgumentException,
                                                          java.lang.InstantiationException,
                                                          java.lang.ClassNotFoundException

Resolution method factory Creation date: (1/26/00 12:17:44 PM)

Parameters:

name - java.lang.String

Returns:

infosapient.resolution.FzyResolutionMethod

Throws:

java.lang.IllegalAccessException -

java.lang.IllegalArgumentException - If the argument is null.

java.lang.InstantiationException -

java.lang.ClassNotFoundException -

resolveToScalar

public double resolveToScalar(FzySet aSet)

The method to be used for those who wish to defuzzify a given set. Performs certain checks for internal consistancy before attempting to defuzzify.

Parameters:

FzySet - the fuzzy set to defuzzify.

resolveUsing

protected abstract double resolveUsing(FzySet aSet)

The method used by subclasses of FzyResolutionMethod to defuzzify a given set.

Parameters:

FzySet - the fuzzy set to defuzzify.

setDomainValue

public void setDomainValue(double newDomainValue)

Insert the method's description here. Creation date: (04/16/01 10:32:22 AM)

Parameters:

newDomainValue - double

setEdgeCnt

public void setEdgeCnt(int newEdgeCnt)

Insert the method's description here. Creation date: (04/16/01 10:32:22 AM)

Parameters:

newEdgeCnt - int

setEdges

public void setEdges(int[] newEdges)

set the found edges of a set. Creation date: (04/16/01 10:32:22 AM)

Parameters:

newEdges - int[]

setKB

public void setKB(FzyKnowledgebase akb)

setLeftEdge

public void setLeftEdge(int l)

Set the current left edge of set. Creation date: (04/16/01 10:33:09 AM)

Returns:

int

setMbrValue

public void setMbrValue(double newMbrValue)

Insert the method's description here. Creation date: (04/16/01 10:32:22 AM)

Parameters:

newMbrValue - double

setRightEdge

public void setRightEdge(int r)

Set the current Right edge of set. Creation date: (04/16/01 10:33:09 AM)

Returns:

int

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

toXML

public java.lang.StringBuffer toXML()

Represent this resolution method as xml tags. Creation date: (1/31/00 8:47:14 AM)

Returns:

java.lang.StringBuffer

toXML

public java.lang.StringBuffer toXML(int nTabs)

Represent this resolution method as xml tags. Creation date: (1/31/00 8:47:14 AM)

Specified by:

toXML in interface XMLOutput

Returns:

java.lang.StringBuffer