dragon.ml.seqmodel.model

Class AbstractModel

java.lang.Object

dragon.ml.seqmodel.model.AbstractModel

All Implemented Interfaces:

ModelGraph

Direct Known Subclasses:

CompleteModel, GenericModel, NestedModel, NoEdgeModel

public abstract class AbstractModel
extends Object
implements ModelGraph

Abstract class for model graph

Copyright: Copyright (c) 2005

Company: IST, Drexel University

Version:

1.0

Author:

Davis Zhou

Field Summary

Fields

Modifier and Type	Field and Description
protected String	name
protected int	numLabels

Constructor Summary

Constructors

Constructor and Description
AbstractModel(int labelNum, String name)

Method Summary

Modifier and Type	Method and Description
int	getLabelNum() Gets the number of unique labels.
int	getMarkovOrder() Gets the order of the markov chain.
static ModelGraph	getNewModelGraph(int numLabels, String modelSpecs)
int	getOriginalLabelNum() Gets the number of original unique labels no matter what order the markov chain is.
int	getStateNum() Gets the number of states.
boolean	mapLabelToState(DataSequence seq) Maps labels to states.
boolean	mapLabelToState(DataSequence data, int len, int start) This method is used by inner model only
boolean	mapStateToLabel(DataSequence seq) Maps states to labels.
void	printGraph()

Methods inherited from class java.lang.Object

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

Methods inherited from interface dragon.ml.seqmodel.model.ModelGraph

getEdgeIterator, getEdgeNum, getEndState, getEndStateNum, getLabel, getStartState, getStartStateNum, isEndState, isStartState

Field Detail

numLabels

protected int numLabels

name

protected String name

Constructor Detail

AbstractModel

public AbstractModel(int labelNum,
                     String name)

Method Detail

getLabelNum

public int getLabelNum()

Description copied from interface: ModelGraph

Gets the number of unique labels. If there are 4 original labels and the markov chain is of the second order, this method returns 16.

Specified by:

getLabelNum in interface ModelGraph

Returns:

the number of unique labels.

getStateNum

public int getStateNum()

Description copied from interface: ModelGraph

Gets the number of states. It is always equal to the number of labels except for the nested model.

Specified by:

getStateNum in interface ModelGraph

Returns:

the number of states

getOriginalLabelNum

public int getOriginalLabelNum()

Description copied from interface: ModelGraph

Gets the number of original unique labels no matter what order the markov chain is. It is always equal to the number of labels unless markov is not the first order.

Specified by:

getOriginalLabelNum in interface ModelGraph

Returns:

the number of original unique labels

getMarkovOrder

public int getMarkovOrder()

Description copied from interface: ModelGraph

Gets the order of the markov chain. It is always equal to one except for the complete model.

Specified by:

getMarkovOrder in interface ModelGraph

Returns:

the order of the markov chain.

mapStateToLabel

public boolean mapStateToLabel(DataSequence seq)

Description copied from interface: ModelGraph

Maps states to labels. It does nothing unless nested model

Specified by:

mapStateToLabel in interface ModelGraph

Parameters:

seq - the sequence for mapping

Returns:

true if mapping successfully

mapLabelToState

public boolean mapLabelToState(DataSequence seq)

Description copied from interface: ModelGraph

Maps labels to states. It does nothing unless nested model.

Specified by:

mapLabelToState in interface ModelGraph

Parameters:

seq - the sequence for mapping

Returns:

true if mapping successfully

mapLabelToState

public boolean mapLabelToState(DataSequence data,
                               int len,
                               int start)

Description copied from interface: ModelGraph

This method is used by inner model only

Specified by:

mapLabelToState in interface ModelGraph

Parameters:

data - the sequence for mapping

len - the number of tokens for mapping

start - the position of the starting token

Returns:

true if mapping successfully

printGraph

public void printGraph()

getNewModelGraph

public static ModelGraph getNewModelGraph(int numLabels,
                                          String modelSpecs)