cc.mallet.fst
Class MEMM

java.lang.Object
  cc.mallet.fst.Transducer
      cc.mallet.fst.CRF
          cc.mallet.fst.MEMM

All Implemented Interfaces:

java.io.Serializable

public class MEMM
extends CRF
implements java.io.Serializable

A Maximum Entropy Markov Model.

See Also:

Serialized Form

Nested Class Summary

static class	MEMM.State
protected static class	MEMM.TransitionIterator

Nested classes/interfaces inherited from class cc.mallet.fst.CRF

CRF.Factors

Nested classes/interfaces inherited from class cc.mallet.fst.Transducer

Transducer.Incrementor

Field Summary

Fields inherited from class cc.mallet.fst.CRF

cachedNumParametersStamp, featureInducers, featureSelections, globalFeatureSelection, initialStates, inputAlphabet, name2state, numParameters, outputAlphabet, parameters, states, weightsStructureChangeStamp, weightsValueChangeStamp

Fields inherited from class cc.mallet.fst.Transducer

CERTAIN_WEIGHT, IMPOSSIBLE_WEIGHT, inputPipe, outputPipe

Constructor Summary

MEMM(Alphabet inputAlphabet, Alphabet outputAlphabet)

MEMM(CRF crf)

MEMM(Pipe inputPipe, Pipe outputPipe)

Method Summary

protected CRF.State

newState(java.lang.String name, int index, double initialWeight, double finalWeight, java.lang.String[] destinationNames, java.lang.String[] labelNames, java.lang.String[][] weightNames, CRF crf)

Methods inherited from class cc.mallet.fst.CRF

addFullyConnectedStates, addFullyConnectedStatesForBiLabels, addFullyConnectedStatesForLabels, addFullyConnectedStatesForThreeQuarterLabels, addFullyConnectedStatesForTriLabels, addOrderNStates, addSelfTransitioningStateForAllLabels, addStartState, addStartState, addState, addState, addState, addState, addStatesForBiLabelsConnectedAsIn, addStatesForHalfLabelsConnectedAsIn, addStatesForLabelsConnectedAsIn, addStatesForThreeQuarterLabelsConnectedAsIn, evaluate, freezeWeights, freezeWeights, getDefaultWeights, getInputAlphabet, getNumParameters, getOutputAlphabet, getParameter, getParameter, getParameters, getParametersAbsNorm, getState, getState, getWeights, getWeights, getWeights, getWeightsIndex, getWeightsName, getWeightsStructureChangeStamp, getWeightsValueChangeStamp, induceFeaturesFor, initialStateIterator, isTrainable, isWeightsFrozen, numStates, predict, print, print, setAsStartState, setDefaultWeight, setDefaultWeights, setFeatureSelection, setParameter, setParameter, setWeights, setWeights, setWeights, setWeightsDimensionAsIn, setWeightsDimensionAsIn, setWeightsDimensionDensely, unfreezeWeights, weightsStructureChanged, weightsValueChanged, write

Methods inherited from class cc.mallet.fst.Transducer

averageTokenAccuracy, canIterateAllTransitions, generatePath, getInputPipe, getMaxLatticeFactory, getOutputPipe, getSumLatticeFactory, isGenerative, label, less_efficient_sumLogProb, no_longer_needed_sumNegLogProb, setMaxLatticeFactory, setSumLatticeFactory, stateIndexOfString, sumLogProb, transduce, transduce

Methods inherited from class java.lang.Object

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

Constructor Detail

MEMM

public MEMM(Pipe inputPipe,
            Pipe outputPipe)

MEMM

public MEMM(Alphabet inputAlphabet,
            Alphabet outputAlphabet)

MEMM

public MEMM(CRF crf)

Method Detail

newState

protected CRF.State newState(java.lang.String name,
                             int index,
                             double initialWeight,
                             double finalWeight,
                             java.lang.String[] destinationNames,
                             java.lang.String[] labelNames,
                             java.lang.String[][] weightNames,
                             CRF crf)

Overrides:

newState in class CRF