public class HSMMGeneratorGaussianEmissions extends HSMMGenerator
This actor implements the Expectation-Maximization(EM) algorithm for parameter estimation in a family of graphical stochastic models, known as the Hidden Semi-Markov Model family.
In addition to estimating the parameters of a hidden markov model,
References
[1] Dewar, M.; Wiggins, C.; Wood, F., Inference in Hidden Markov Models with Explicit State Duration Distributions, Signal Processing Letters, IEEE , vol.19, no.4, pp.235,238, April 2012
ParameterEstimatorEntity.ContainedObjectsIterator| Modifier and Type | Field and Description |
|---|---|
PortParameter |
covariance
Variance array.
|
PortParameter |
mean
Mean array.
|
_A, _D, _D0, _dt, _durationPriors, _firstIteration, _maxDuration, _nStates, _windowSize, _x0, _xt, D_new, durationPriors, durationProbabilities, hiddenState, MAX_TRIALS, observation, powerUpperBound, statePriors, transitionMatrix, trigger, windowSize_typesValid_actorFiringListeners, _initializables, _notifyingActorFiring, _stopRequested_changeListeners, _changeLock, _changeRequests, _debugging, _debugListeners, _deferChangeRequests, _elementName, _isPersistent, _verbose, _workspace, ATTRIBUTES, CLASSNAME, COMPLETE, CONTENTS, DEEP, FULLNAME, LINKSCOMPLETED, NOT_READY, STOP_ITERATING| Constructor and Description |
|---|
HSMMGeneratorGaussianEmissions(CompositeEntity container,
java.lang.String name)
Construct an actor with the given container and name.
|
| Modifier and Type | Method and Description |
|---|---|
protected int |
_propagateState()
Sample next state given current state.
|
protected int |
_sampleDurationForState()
Sample a duration value given current state.
|
protected int |
_sampleDurationFromPrior()
Sample duration value from prior duration distribution.
|
protected int |
_sampleHiddenStateFromPrior()
Sample state at this iteration from the state prior.
|
protected double[] |
_sampleObservation()
Sample an observation value given current state.
|
void |
attributeChanged(Attribute attribute)
React to a change in an attribute.
|
java.lang.Object |
clone(Workspace workspace)
Clone the actor into the specified workspace.
|
void |
fire()
Do nothing.
|
preinitialize_containedTypeConstraints, _customTypeConstraints, _defaultTypeConstraints, _fireAt, _fireAt, attributeTypeChanged, clone, isBackwardTypeInferenceEnabled, newPort, typeConstraintList, typeConstraints_actorFiring, _actorFiring, _declareDelayDependency, addActorFiringListener, addInitializable, connectionsChanged, createReceivers, declareDelayDependency, getCausalityInterface, getDirector, getExecutiveDirector, getManager, initialize, inputPortList, isFireFunctional, isStrict, iterate, newReceiver, outputPortList, postfire, prefire, pruneDependencies, recordFiring, removeActorFiringListener, removeDependency, removeInitializable, setContainer, stop, stopFire, terminate, wrapup_adjustDeferrals, _checkContainer, _getContainedObject, _propagateExistence, getContainer, instantiate, isAtomic, isOpaque, moveDown, moveToFirst, moveToIndex, moveToLast, moveUp, propagateExistence, setName_addPort, _description, _exportMoMLContents, _removePort, _validateSettables, connectedPortList, connectedPorts, containedObjectsIterator, getAttribute, getPort, getPorts, linkedRelationList, linkedRelations, portList, removeAllPorts, setClassDefinition, uniqueName_setParent, exportMoML, getChildren, getElementName, getParent, getPrototypeList, isClassDefinition, isWithinClassDefinition_addAttribute, _adjustOverride, _attachText, _cloneFixAttributeFields, _containedDecorators, _copyChangeRequestList, _debug, _debug, _debug, _debug, _debug, _executeChangeRequests, _getIndentPrefix, _isMoMLSuppressed, _markContentsDerived, _notifyHierarchyListenersAfterChange, _notifyHierarchyListenersBeforeChange, _propagateValue, _removeAttribute, _splitName, _stripNumericSuffix, addChangeListener, addDebugListener, addHierarchyListener, attributeDeleted, attributeList, attributeList, decorators, deepContains, depthInHierarchy, description, description, event, executeChangeRequests, exportMoML, exportMoML, exportMoML, exportMoML, exportMoMLPlain, getAttribute, getAttributes, getChangeListeners, getClassName, getDecoratorAttribute, getDecoratorAttributes, getDerivedLevel, getDerivedList, getDisplayName, getFullName, getModelErrorHandler, getName, getName, getSource, handleModelError, isDeferringChangeRequests, isOverridden, isPersistent, lazyContainedObjectsIterator, message, notifyOfNameChange, propagateValue, propagateValues, removeAttribute, removeChangeListener, removeDebugListener, removeHierarchyListener, requestChange, setClassName, setDeferringChangeRequests, setDerivedLevel, setDisplayName, setModelErrorHandler, setPersistent, setSource, sortContainedObjects, toplevel, toString, validateSettables, workspaceequals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, waitcreateReceivers, getCausalityInterface, getDirector, getExecutiveDirector, getManager, inputPortList, newReceiver, outputPortListisFireFunctional, isStrict, iterate, postfire, prefire, stop, stopFire, terminateaddInitializable, initialize, removeInitializable, wrapupdescription, getContainer, getDisplayName, getFullName, getName, getName, setNamegetDerivedLevel, getDerivedList, propagateValuepublic PortParameter mean
public PortParameter covariance
public HSMMGeneratorGaussianEmissions(CompositeEntity container, java.lang.String name) throws NameDuplicationException, IllegalActionException
container - The container.name - The name of this actorIllegalActionException - If the actor cannot be contained
by the proposed container.NameDuplicationException - If the container already has an
actor with this name.public void attributeChanged(Attribute attribute) throws IllegalActionException
NamedObjattributeChanged in class HSMMGeneratorattribute - The attribute that changed.IllegalActionException - If the change is not acceptable
to this container (not thrown in this base class).public java.lang.Object clone(Workspace workspace) throws java.lang.CloneNotSupportedException
TypedAtomicActorclone in class HSMMGeneratorworkspace - The workspace for the new object.java.lang.CloneNotSupportedException - If a derived class contains
an attribute that cannot be cloned.NamedObj.exportMoML(Writer, int, String),
NamedObj.setDeferringChangeRequests(boolean)public void fire()
throws IllegalActionException
AtomicActorfire in interface Executablefire in class AtomicActor<TypedIOPort>IllegalActionException - Not thrown in this base class.protected double[] _sampleObservation()
HSMMGenerator_sampleObservation in class HSMMGeneratorprotected int _sampleDurationForState()
HSMMGenerator_sampleDurationForState in class HSMMGeneratorprotected int _propagateState()
HSMMGenerator_propagateState in class HSMMGeneratorprotected int _sampleHiddenStateFromPrior()
HSMMGenerator_sampleHiddenStateFromPrior in class HSMMGeneratorprotected int _sampleDurationFromPrior()
HSMMGenerator_sampleDurationFromPrior in class HSMMGenerator