edu.memphis.ccrg.lida.pam
Class PamLinkImpl

java.lang.Object
  edu.memphis.ccrg.lida.framework.initialization.InitializableImpl
      edu.memphis.ccrg.lida.framework.shared.activation.ActivatibleImpl
          edu.memphis.ccrg.lida.framework.shared.LinkImpl
              edu.memphis.ccrg.lida.pam.PamLinkImpl

All Implemented Interfaces:

Initializable, Activatible, Learnable, Link, Linkable, PamLink, PamLinkable

public class PamLinkImpl
extends LinkImpl
implements PamLink

Default implementation of PamLink.

Author:

Ryan J. McCall

Field Summary

Fields inherited from class edu.memphis.ccrg.lida.framework.shared.LinkImpl

groundingPamLink

Fields inherited from interface edu.memphis.ccrg.lida.framework.shared.activation.Learnable

DEFAULT_BASE_LEVEL_ACTIVATION, DEFAULT_LEARNABLE_REMOVAL_THRESHOLD

Fields inherited from interface edu.memphis.ccrg.lida.framework.shared.activation.Activatible

DEFAULT_ACTIVATIBLE_REMOVAL_THRESHOLD, DEFAULT_ACTIVATION

Constructor Summary

PamLinkImpl()
Default constructor Only ElementFactory should be creating this Object.

PamLinkImpl(PamLinkImpl pl)
Deprecated. Use ElementFactory.getLink(String, Node, Linkable, LinkCategory, String, String, double, double) instead.

Method Summary

void	decay(long ticks) decay the current activation using the decay strategy.
void	decayBaseLevelActivation(long ticks) decay the Base Level activation using the decay strategy.
boolean	equals(java.lang.Object obj) This method compares this LinkImpl with any kind of Link.
void	excite(double amount) The current activation of this node is increased using the excitation value as a parameter for the ExciteStrategy
double	getActivatibleRemovalThreshold() Gets activatibleRemovalThreshold
double	getActivation() Returns the current activation of this activatible
double	getBaseLevelActivation() Returns base level activation.
DecayStrategy	getBaseLevelDecayStrategy() Gets decay strategy for the Base Level activation
ExciteStrategy	getBaseLevelExciteStrategy() Gets BaseLevelExciteStrategy
DecayStrategy	getDecayStrategy() Gets the decay strategy
ExciteStrategy	getExciteStrategy() Gets the excite strategy
double	getLearnableRemovalThreshold() Gets learnableRemovalThreshold
double	getTotalActivation() Returns the total activation of this activatible
TotalActivationStrategy	getTotalActivationStrategy() Returns TotalActivationStrategy
int	hashCode()
void	init() Must call the init() of the internal Learnable.
boolean	isRemovable() Returns true if this Activatible is removable
void	reinforceBaseLevelActivation(double amount) The Base Level activation of this node is increased using the excitation value as a parameter for the ExciteStrategy.
void	setActivatibleRemovalThreshold(double threshold) Sets activatibleRemovalThreshold
void	setActivation(double activation) Set the current activation.
void	setBaseLevelActivation(double amount) Set base level activation.
void	setBaseLevelDecayStrategy(DecayStrategy strategy) Sets decay strategy for the Base Level activation
void	setBaseLevelExciteStrategy(ExciteStrategy strategy) Sets BaseLevelExciteStrategy
void	setBaseLevelRemovalThreshold(double threshold) Sets learnableRemovalThreshold
void	setDecayStrategy(DecayStrategy strategy) Sets the decay strategy
void	setExciteStrategy(ExciteStrategy strategy) Sets the excite strategy
void	setTotalActivationStrategy(TotalActivationStrategy strategy) Sets TotalActivationStrategy
void	updateLinkValues(Link link) This default implementation of Link has all of its attributes updated by NodeStructureImpl when links are updated.

Methods inherited from class edu.memphis.ccrg.lida.framework.shared.LinkImpl

getCategory, getExtendedId, getFactoryType, getGroundingPamLink, getLabel, getSink, getSource, isSimpleLink, setCategory, setFactoryType, setGroundingPamLink, setSink, setSource, toString

Methods inherited from class edu.memphis.ccrg.lida.framework.initialization.InitializableImpl

containsParameter, getParam, getParameters, init

Methods inherited from class java.lang.Object

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

Methods inherited from interface edu.memphis.ccrg.lida.framework.shared.Link

getCategory, getGroundingPamLink, getSink, getSource, isSimpleLink, setCategory, setGroundingPamLink, setSink, setSource

Methods inherited from interface edu.memphis.ccrg.lida.framework.shared.Linkable

getExtendedId, getFactoryType, getLabel, setFactoryType

Constructor Detail

PamLinkImpl

public PamLinkImpl()

Default constructor Only ElementFactory should be creating this Object.

PamLinkImpl

@Deprecated
public PamLinkImpl(PamLinkImpl pl)

Deprecated. Use ElementFactory.getLink(String, Node, Linkable, LinkCategory, String, String, double, double) instead.

Copy constructor

Parameters:

pl - source PamLinkImpl

Method Detail

init

public void init()

Must call the init() of the internal Learnable.

Specified by:

init in interface Initializable

Overrides:

init in class InitializableImpl

See Also:

LearnableImpl.init(), ElementFactory.getLink(String, edu.memphis.ccrg.lida.framework.shared.Node, edu.memphis.ccrg.lida.framework.shared.Linkable, edu.memphis.ccrg.lida.framework.shared.LinkCategory, String, String, double, double)

updateLinkValues

public void updateLinkValues(Link link)

Description copied from class: LinkImpl

This default implementation of Link has all of its attributes updated by NodeStructureImpl when links are updated. Therefore this class does not have to implement this method. Any subclass with specific class members (e.g. PamLinkImpl) should however override this method.

Specified by:

updateLinkValues in interface Link

Overrides:

updateLinkValues in class LinkImpl

Parameters:

link - Link whose values are used to update with.

See Also:

updateLinkValues(Link), NodeStructureImpl.addLink(Link, String), NodeStructureImpl.getNewLink(Link, String, Node, Linkable, LinkCategory)

equals

public boolean equals(java.lang.Object obj)

Description copied from class: LinkImpl

This method compares this LinkImpl with any kind of Link. Two Links are equal if and only if they have the same id.

Overrides:

equals in class LinkImpl

hashCode

public int hashCode()

Overrides:

hashCode in class LinkImpl

getActivation

public double getActivation()

Description copied from interface: Activatible

Returns the current activation of this activatible

Specified by:

getActivation in interface Activatible

Overrides:

getActivation in class ActivatibleImpl

Returns:

the current activation.

setActivation

public void setActivation(double activation)

Description copied from interface: Activatible

Set the current activation. Used for initialization, not during regular execution, use excite instead.

Specified by:

setActivation in interface Activatible

Overrides:

setActivation in class ActivatibleImpl

Parameters:

activation - new activation

getTotalActivation

public double getTotalActivation()

Description copied from interface: Activatible

Returns the total activation of this activatible

Specified by:

getTotalActivation in interface Activatible

Overrides:

getTotalActivation in class ActivatibleImpl

Returns:

The total activation. It should return the current activation if no base activation is used.

excite

public void excite(double amount)

Description copied from interface: Activatible

The current activation of this node is increased using the excitation value as a parameter for the ExciteStrategy

Specified by:

excite in interface Activatible

Overrides:

excite in class ActivatibleImpl

Parameters:

amount - the value to be used to increase the current activation of this node

setExciteStrategy

public void setExciteStrategy(ExciteStrategy strategy)

Description copied from interface: Activatible

Sets the excite strategy

Specified by:

setExciteStrategy in interface Activatible

Overrides:

setExciteStrategy in class ActivatibleImpl

Parameters:

strategy - the Excite strategy for the current activation.

getExciteStrategy

public ExciteStrategy getExciteStrategy()

Description copied from interface: Activatible

Gets the excite strategy

Specified by:

getExciteStrategy in interface Activatible

Overrides:

getExciteStrategy in class ActivatibleImpl

Returns:

the excite strategy

decay

public void decay(long ticks)

Description copied from interface: Activatible

decay the current activation using the decay strategy. The decay depends on the time since the last decaying. It is indicated by the parameter ticks.

Specified by:

decay in interface Activatible

Overrides:

decay in class ActivatibleImpl

Parameters:

ticks - the number of ticks to decay

setDecayStrategy

public void setDecayStrategy(DecayStrategy strategy)

Description copied from interface: Activatible

Sets the decay strategy

Specified by:

setDecayStrategy in interface Activatible

Overrides:

setDecayStrategy in class ActivatibleImpl

Parameters:

strategy - the decay strategy for the current activation.

getDecayStrategy

public DecayStrategy getDecayStrategy()

Description copied from interface: Activatible

Gets the decay strategy

Specified by:

getDecayStrategy in interface Activatible

Overrides:

getDecayStrategy in class ActivatibleImpl

Returns:

the decay strategy.

setActivatibleRemovalThreshold

public void setActivatibleRemovalThreshold(double threshold)

Description copied from interface: Activatible

Sets activatibleRemovalThreshold

Specified by:

setActivatibleRemovalThreshold in interface Activatible

Overrides:

setActivatibleRemovalThreshold in class ActivatibleImpl

Parameters:

threshold - threshold for removal of this activatible

getActivatibleRemovalThreshold

public double getActivatibleRemovalThreshold()

Description copied from interface: Activatible

Gets activatibleRemovalThreshold

Specified by:

getActivatibleRemovalThreshold in interface Activatible

Overrides:

getActivatibleRemovalThreshold in class ActivatibleImpl

Returns:

threshold for removal of this activatible

isRemovable

public boolean isRemovable()

Description copied from interface: Activatible

Returns true if this Activatible is removable

Specified by:

isRemovable in interface Activatible

Overrides:

isRemovable in class ActivatibleImpl

Returns:

true if activation is less than activatibleRemovalThreshold

getBaseLevelActivation

public double getBaseLevelActivation()

Description copied from interface: Learnable

Returns base level activation.

Specified by:

getBaseLevelActivation in interface Learnable

Returns:

activation representing the degree this Learnable has been learned.

setBaseLevelActivation

public void setBaseLevelActivation(double amount)

Description copied from interface: Learnable

Set base level activation. Used for initialization, not during regular execution, use Learnable.reinforceBaseLevelActivation(double) instead.

Specified by:

setBaseLevelActivation in interface Learnable

Parameters:

amount - new base level activation amount

reinforceBaseLevelActivation

public void reinforceBaseLevelActivation(double amount)

Description copied from interface: Learnable

The Base Level activation of this node is increased using the excitation value as a parameter for the ExciteStrategy. This is primarily used for learning.

Specified by:

reinforceBaseLevelActivation in interface Learnable

Parameters:

amount - the value to be used to increase the Base Level activation of this node

setBaseLevelExciteStrategy

public void setBaseLevelExciteStrategy(ExciteStrategy strategy)

Description copied from interface: Learnable

Sets BaseLevelExciteStrategy

Specified by:

setBaseLevelExciteStrategy in interface Learnable

Parameters:

strategy - the Excite strategy for the current activation.

getBaseLevelExciteStrategy

public ExciteStrategy getBaseLevelExciteStrategy()

Description copied from interface: Learnable

Gets BaseLevelExciteStrategy

Specified by:

getBaseLevelExciteStrategy in interface Learnable

Returns:

the excite strategy

decayBaseLevelActivation

public void decayBaseLevelActivation(long ticks)

Description copied from interface: Learnable

decay the Base Level activation using the decay strategy. The decay depends on the time since the last decaying. It is indicated by the parameter ticks.

Specified by:

decayBaseLevelActivation in interface Learnable

Parameters:

ticks - the number of ticks to decay

setBaseLevelDecayStrategy

public void setBaseLevelDecayStrategy(DecayStrategy strategy)

Description copied from interface: Learnable

Sets decay strategy for the Base Level activation

Specified by:

setBaseLevelDecayStrategy in interface Learnable

Parameters:

strategy - the decay strategy for the Base Level activation.

getBaseLevelDecayStrategy

public DecayStrategy getBaseLevelDecayStrategy()

Description copied from interface: Learnable

Gets decay strategy for the Base Level activation

Specified by:

getBaseLevelDecayStrategy in interface Learnable

Returns:

the decay strategy for the Base Level activation.

setBaseLevelRemovalThreshold

public void setBaseLevelRemovalThreshold(double threshold)

Description copied from interface: Learnable

Sets learnableRemovalThreshold

Specified by:

setBaseLevelRemovalThreshold in interface Learnable

Parameters:

threshold - threshold for removal of this Learnable

getLearnableRemovalThreshold

public double getLearnableRemovalThreshold()

Description copied from interface: Learnable

Gets learnableRemovalThreshold

Specified by:

getLearnableRemovalThreshold in interface Learnable

Returns:

threshold for removal of this learnable

getTotalActivationStrategy

public TotalActivationStrategy getTotalActivationStrategy()

Description copied from interface: Learnable

Returns TotalActivationStrategy

Specified by:

getTotalActivationStrategy in interface Learnable

Returns:

Strategy this Learnable uses to calculate total activation.

setTotalActivationStrategy

public void setTotalActivationStrategy(TotalActivationStrategy strategy)

Description copied from interface: Learnable

Sets TotalActivationStrategy

Specified by:

setTotalActivationStrategy in interface Learnable

Parameters:

strategy - Strategy this Learnable uses to calculate total activation.