LGames
Class HolisticDGame2

java.lang.Object
  |
  +--LGames.DGame
        |
        +--LGames.HolisticDGame2

public class HolisticDGame2

extends DGame

The class HolisticDGame2 implements the discrimination games for HolisticAgent2. I.e. for agents with a hierarchical layering of meanings.
The function playGame is used to control the game.

Copyright (c) 2004 Paul Vogt

Field Summary

protected int	iMeaning
protected int	maxMeanings

Constructor Summary

HolisticDGame2()
Empty constructor

HolisticDGame2(java.util.List o)
Constructor that initialises a pointer to the agents ontology

Method Summary

void	forget(int n) This function makes sure that when forgetting a meaning, the density of the layer is adapted accordingly
int	getMaxLayer()
int	playGame(Context cxt, int topic, int layer, boolean adapt) playGame controls a discrimination game.
void	setDim(int d) Sets the number of dimensions of the conceptual space
void	setMaxMeanings(int M) Sets the limit on the number of meanings#

Methods inherited from class LGames.DGame

getDim, playGame

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

HolisticDGame2

public HolisticDGame2()

Empty constructor

HolisticDGame2

public HolisticDGame2(java.util.List o)

Constructor that initialises a pointer to the agents ontology

Parameters:

o - the ontology

Method Detail

setDim

public void setDim(int d)

Sets the number of dimensions of the conceptual space

Overrides:

setDim in class DGame

Parameters:

d - the dimension

setMaxMeanings

public void setMaxMeanings(int M)

Sets the limit on the number of meanings#

Overrides:

setMaxMeanings in class DGame

Parameters:

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

playGame

public int playGame(Context cxt,
                    int topic,
                    int layer,
                    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.

layer - the hierarchical at which the discrimination game is played

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

Returns:

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

forget

public void forget(int n)

This function makes sure that when forgetting a meaning, the density of the layer is adapted accordingly

getMaxLayer

public int getMaxLayer()

Returns:

the 'deepest' layer that has been exploited up to now.