absurdist
Class Concept

java.lang.Object
  absurdist.Concept

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

ConceptNode, FeatureVectorConcept

public class Concept

extends java.lang.Object

implements java.io.Serializable

Class Concept specifies the data structure for a concept, which contains its name and some features.

See Also:

Serialized Form

Field Summary

java.lang.String	category Nominal attribute, can be used to restrict mapping range.
double	d1 2D normalized values; can be extended to n-ary attribute vector.
double	d2 2D normalized values; can be extended to n-ary attribute vector.
java.lang.String	name Unique identifier of this concept.
int	rank Quantitative attribute in the range of [1, 10]; can be used to decide mapping priority.

Constructor Summary

Concept()
Creates an empty concept.

Concept(Concept concept)
Creates a copy of a concept.

Concept(Concept concept, double noise)
Creates a copy of a concept with some noise added to the feature values.

Concept(int i, java.lang.String category)
Creates a concept with specified index and category and default features.

Concept(int i, java.util.Vector categories, boolean ranked, boolean valued)
Creates a concept with specified index and random features if indicated.

Concept(java.lang.String name, java.lang.String category, int rank, double d1, double d2)
Creates a concept with full features.

Method Summary

void	addNoise(double noise) Adds some noise to this concept's feature values.
double	distance(Concept concept) Computes the normalized semantic distance between this concept and the specified one.
boolean	isRanked() Checks whether this concept is ranked, i.e.
boolean	isValued() Checks whether this concept is valued, i.e.
java.lang.String	toString() Returns a string representation of this concept.

Methods inherited from class java.lang.Object

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

Field Detail

name

public java.lang.String name

Unique identifier of this concept.

category

public java.lang.String category

Nominal attribute, can be used to restrict mapping range.

rank

public int rank

Quantitative attribute in the range of [1, 10]; can be used to decide mapping priority.

d1

public double d1

2D normalized values; can be extended to n-ary attribute vector.

d2

public double d2

2D normalized values; can be extended to n-ary attribute vector.

Constructor Detail

Concept

public Concept()

Creates an empty concept.

Concept

public Concept(int i,
               java.lang.String category)

Creates a concept with specified index and category and default features.

Concept

public Concept(int i,
               java.util.Vector categories,
               boolean ranked,
               boolean valued)

Creates a concept with specified index and random features if indicated.

Concept

public Concept(java.lang.String name,
               java.lang.String category,
               int rank,
               double d1,
               double d2)

Creates a concept with full features.

Concept

public Concept(Concept concept)

Creates a copy of a concept.

Concept

public Concept(Concept concept,
               double noise)

Creates a copy of a concept with some noise added to the feature values.

Method Detail

addNoise

public void addNoise(double noise)

Adds some noise to this concept's feature values.

isRanked

public boolean isRanked()

Checks whether this concept is ranked, i.e. has a non-default rank.

isValued

public boolean isValued()

Checks whether this concept is valued, i.e. has non-zero feature values.

distance

public double distance(Concept concept)

Computes the normalized semantic distance between this concept and the specified one.

toString

public java.lang.String toString()

Returns a string representation of this concept.