keel.Algorithms.Instance_Generation.PNN

Class MatrixOfDistances

java.lang.Object

keel.Algorithms.Instance_Generation.PNN.MatrixOfDistances

public class MatrixOfDistances
extends java.lang.Object

Matrix of distances between two sets of prototypes.

Field Summary

Fields

Modifier and Type	Field and Description
protected PrototypeSet	A One prototype set
protected PrototypeSet	B Other prototype set
protected java.util.HashMap<Prototype,java.util.HashSet<Prototype>>	invertedBList For each B-prototype, there is a hashset of all the others prototypes which point to it.
protected java.util.HashMap<Prototype,java.util.HashMap<Prototype,java.lang.Double>>	matrix Warehouse of distance between prototypes in A and prototypes in B
protected PrototypeSet	orphans Prototypes added to the set, to be compared both A and B (it is not so much used)

Constructor Summary

Constructors

Constructor and Description
MatrixOfDistances(PrototypeSet A, PrototypeSet B) Construct a matrix of the distances between elements of the set A and B.

Method Summary

Modifier and Type	Method and Description
void	add(Prototype x) Add a new prototype to the matrix of distances.
void	addToA(Prototype x) Add a new prototype to the matrix of distances (subset A).
void	addToB(Prototype x) Add a new prototype to the matrix of distances (subset B).
double	get(Prototype a, Prototype b) Get the distance between two prototypes.
boolean	remove(Prototype x) Remove a prototype to the matrix of distances.
boolean	removeFromA(Prototype a) Remove a prototype to the matrix of distances.
boolean	removeFromB(Prototype x) Remove a prototype to the matrix of distances.

Methods inherited from class java.lang.Object

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

Field Detail

A

protected PrototypeSet A

One prototype set

B

protected PrototypeSet B

Other prototype set

orphans

protected PrototypeSet orphans

Prototypes added to the set, to be compared both A and B (it is not so much used)

matrix

protected java.util.HashMap<Prototype,java.util.HashMap<Prototype,java.lang.Double>> matrix

Warehouse of distance between prototypes in A and prototypes in B

invertedBList

protected java.util.HashMap<Prototype,java.util.HashSet<Prototype>> invertedBList

For each B-prototype, there is a hashset of all the others prototypes which point to it.

Constructor Detail

MatrixOfDistances

public MatrixOfDistances(PrototypeSet A,
                         PrototypeSet B)

Construct a matrix of the distances between elements of the set A and B.

Parameters:

A - One prototype set.

B - Other prototype set.

Method Detail

get

public double get(Prototype a,
                  Prototype b)

Get the distance between two prototypes.

Parameters:

a - A prototype.

b - Other prototype.

Returns:

Distance between a and b.

removeFromA

public boolean removeFromA(Prototype a)

Remove a prototype to the matrix of distances.

Parameters:

a - prototype to be erased.

Returns:

True if the prototype has been correctly removed.

removeFromB

public boolean removeFromB(Prototype x)

Remove a prototype to the matrix of distances.

Parameters:

x - prototype to be erased.

Returns:

TRUE if it was removed, FALSE if not.

remove

public boolean remove(Prototype x)

Remove a prototype to the matrix of distances.

Parameters:

x - prototype to be erased.

Returns:

TRUE if it was removed, FALSE if not.

add

public void add(Prototype x)

Add a new prototype to the matrix of distances.

Parameters:

x - New prototype to be added.

addToA

public void addToA(Prototype x)

Add a new prototype to the matrix of distances (subset A).

Parameters:

x - New prototype to be added to A set.

addToB

public void addToB(Prototype x)

Add a new prototype to the matrix of distances (subset B).

Parameters:

x - New prototype to be added to B set.