LGames
Class DGame

java.lang.Object
  |
  +--LGames.DGame

Direct Known Subclasses:

CompositionalDGame2, HolisticDGame2

public class DGame

extends java.lang.Object

The class DGame implements the discrimination games. The function playGame is used to control the game.

Copyright (c) 2004 Paul Vogt

Field Summary

protected int	iMeaning
protected int	maxMeanings

Constructor Summary

DGame()
Empty constructor

DGame(int M)
Constructor with a limit on the number of meanings

DGame(java.util.List o)
Constructor that initialises a pointer to the agents ontology

Method Summary

int	getDim()
int	playGame(Context cxt, int topic, boolean adapt) playGame controls a discrimination game.
void	setDim(int d) Sets the dimensionality of the conceptual space
void	setMaxMeanings(int M) Sets the limit on the number of meanings#

Methods inherited from class java.lang.Object

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

Field Detail

iMeaning

protected int iMeaning

maxMeanings

protected int maxMeanings

Constructor Detail

DGame

public DGame()

Empty constructor

DGame

public DGame(int M)

Constructor with a limit on the number of meanings

Parameters:

M - the maximum number of meanings that are allowed in the agent's memory

DGame

public DGame(java.util.List o)

Constructor that initialises a pointer to the agents ontology

Parameters:

o - the ontology

Method Detail

setMaxMeanings

public void setMaxMeanings(int M)

Sets the limit on the number of meanings#

Parameters:

M - the maximum number of meanings that are allowed in the agent's memory

setDim

public void setDim(int d)

Sets the dimensionality of the conceptual space

Parameters:

d - the dimension

getDim

public int getDim()

Returns:

the dimension of the conceptual space

playGame

public int playGame(Context cxt,
                    int topic,
                    boolean adapt)

playGame controls a discrimination game. The function first calls a categorisation function where it categorises the featureVector of the context in relation to the ontology. It then tries to discriminate the topic from the rest of the context. If this fails, a new category is added to the ontology, otherwise the category is shifted towards the topic and possibly merged with another category if it comes too close.

Parameters:

cxt - the Context

topic - the index of the topic pointing to the topic-th element of the cxt list.

adapt - sets the learning/adaptation on (true) or off (false)

Returns:

Meaning the meaning of the topic, null if the discrimination game fails.