edu.memphis.ccrg.lida.episodicmemory
Class EpisodicMemoryImpl

java.lang.Object
  edu.memphis.ccrg.lida.framework.initialization.InitializableImpl
      edu.memphis.ccrg.lida.framework.FrameworkModuleImpl
          edu.memphis.ccrg.lida.episodicmemory.EpisodicMemoryImpl

All Implemented Interfaces:

CueListener, EpisodicMemory, FrameworkModule, FullyInitializable, Initializable, ModuleListener, BroadcastListener

public class EpisodicMemoryImpl
extends FrameworkModuleImpl
implements EpisodicMemory, BroadcastListener, CueListener

This is the canonical implementation of EpisodicMemory. It uses a SparseDistributedMemory to store the information.

Author:

Javier Snaider

Field Summary

static int	DEF_ACCESS_RADIUS Default access radius for SparseDistributedMemory
static int	DEF_ADDRESS_LENGTH Default address length for SparseDistributedMemory
static int	DEF_HARD_LOCATIONS Default number of hard locations
static int	DEF_WORD_LENGTH Default word length for SparseDistributedMemory

Fields inherited from class edu.memphis.ccrg.lida.framework.FrameworkModuleImpl

taskSpawner

Constructor Summary

EpisodicMemoryImpl()
Constructs a new object with default values

Method Summary

void	addListener(ModuleListener listener) Override this method to add a listener to the module
void	decayModule(long ticks) Decay only this Module.
SparseDistributedMemory	getSdm() Returns the SDM used in this EpisodicMemory
Translator	getTranslator() Returns the Translator associated with this EpisodicMemoryImpl
void	init() Will set parameters with the following names: em.numOfHardLoc number of hard locations created in SDM to store data em.addressLength size of the hard locations' address em.wordLength size of the hard locations' words (storage) em.activationRadius size of the radius of the hypersphere used to find the "nearby" hard locations of an address
void	learn(Coalition coalition) A place-holder method to remind implementing classes that they should implement learning.
void	receiveBroadcast(Coalition coalition) Listener must receive a broadcast of a the winning Coalition This method should return as possible in order to not delay the rest of the broadcasting.
void	receiveCue(NodeStructure ns) Receive a cue as a NodeStructure In this implementation, first the cue is translated to a BitVector.
void	setTranslator(Translator translator) Sets the Translator of this EpisodicMemoryImpl

Methods inherited from class edu.memphis.ccrg.lida.framework.FrameworkModuleImpl

addSubModule, containsSubmodule, containsSubmodule, getAssistingTaskSpawner, getModuleContent, getModuleName, getSubmodule, getSubmodule, getSubmodules, setAssistingTaskSpawner, setAssociatedModule, setModuleName, taskManagerDecayModule, toString

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

containsParameter, getParam, getParameters, init

Methods inherited from class java.lang.Object

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

Methods inherited from interface edu.memphis.ccrg.lida.framework.FrameworkModule

addSubModule, containsSubmodule, containsSubmodule, getAssistingTaskSpawner, getModuleContent, getModuleName, getSubmodule, getSubmodule, getSubmodules, setAssistingTaskSpawner, setModuleName, taskManagerDecayModule

Methods inherited from interface edu.memphis.ccrg.lida.framework.initialization.FullyInitializable

setAssociatedModule

Methods inherited from interface edu.memphis.ccrg.lida.framework.initialization.Initializable

containsParameter, getParam, getParameters, init

Field Detail

DEF_HARD_LOCATIONS

public static final int DEF_HARD_LOCATIONS

Default number of hard locations

See Also:

Constant Field Values

DEF_ADDRESS_LENGTH

public static final int DEF_ADDRESS_LENGTH

Default address length for SparseDistributedMemory

See Also:

Constant Field Values

DEF_WORD_LENGTH

public static final int DEF_WORD_LENGTH

Default word length for SparseDistributedMemory

See Also:

Constant Field Values

DEF_ACCESS_RADIUS

public static final int DEF_ACCESS_RADIUS

Default access radius for SparseDistributedMemory

See Also:

Constant Field Values

Constructor Detail

EpisodicMemoryImpl

public EpisodicMemoryImpl()

Constructs a new object with default values

Method Detail

init

public void init()

Will set parameters with the following names:

em.numOfHardLoc number of hard locations created in SDM to store data
em.addressLength size of the hard locations' address
em.wordLength size of the hard locations' words (storage)
em.activationRadius size of the radius of the hypersphere used to find the "nearby" hard locations of an address

Specified by:

init in interface Initializable

Overrides:

init in class InitializableImpl

addListener

public void addListener(ModuleListener listener)

Description copied from class: FrameworkModuleImpl

Override this method to add a listener to the module

Specified by:

addListener in interface FrameworkModule

Overrides:

addListener in class FrameworkModuleImpl

Parameters:

listener - - listener of this FrameworkModule

receiveBroadcast

public void receiveBroadcast(Coalition coalition)

Description copied from interface: BroadcastListener

Listener must receive a broadcast of a the winning Coalition This method should return as possible in order to not delay the rest of the broadcasting.

Specified by:

receiveBroadcast in interface BroadcastListener

Parameters:

coalition - the Coalition that won the most recent competition for consciousness

receiveCue

public void receiveCue(NodeStructure ns)

Receive a cue as a NodeStructure In this implementation, first the cue is translated to a BitVector.

Specified by:

receiveCue in interface CueListener

Parameters:

ns - NodeStructure to retrieve

See Also:

Translator

learn

public void learn(Coalition coalition)

Description copied from interface: BroadcastListener

A place-holder method to remind implementing classes that they should implement learning. LIDA theory says receivers of the broadcast should learn from it. This method will not be called directly by the GlobalWorkspace and thus it should be managed by the receiving module.

Specified by:

learn in interface BroadcastListener

Parameters:

coalition - the Coalition that won the most recent competition for consciousness

setTranslator

public void setTranslator(Translator translator)

Sets the Translator of this EpisodicMemoryImpl

Parameters:

translator - the Translator to set

getTranslator

public Translator getTranslator()

Returns the Translator associated with this EpisodicMemoryImpl

Returns:

the Translator

getSdm

public SparseDistributedMemory getSdm()

Returns the SDM used in this EpisodicMemory

Returns:

the SparseDistributedMemory

decayModule

public void decayModule(long ticks)

Description copied from interface: FrameworkModule

Decay only this Module.

Specified by:

decayModule in interface FrameworkModule

Parameters:

ticks - number of ticks to decay.