cc.mallet.types
Class InfoGain

java.lang.Object
  cc.mallet.types.SparseVector
      cc.mallet.types.FeatureVector
          cc.mallet.types.RankedFeatureVector
              cc.mallet.types.InfoGain

All Implemented Interfaces:

AlphabetCarrying, ConstantMatrix, Vector, java.io.Serializable

public class InfoGain
extends RankedFeatureVector

See Also:

Serialized Form

Nested Class Summary

static class

InfoGain.Factory

Nested classes/interfaces inherited from class cc.mallet.types.RankedFeatureVector

RankedFeatureVector.PerLabelFactory

Field Summary

Fields inherited from class cc.mallet.types.SparseVector

hasInfinite, indices, values

Constructor Summary

InfoGain(Alphabet vocab, double[] infogains)

InfoGain(InstanceList ilist)

Method Summary

double	getBaseEntropy()
LabelVector	getBaseLabelDistribution()

Methods inherited from class cc.mallet.types.RankedFeatureVector

getIndexAtRank, getMaxValue, getMaxValuedIndex, getMaxValuedIndexIn, getMaxValuedObject, getMaxValuedObjectIn, getMaxValueIn, getObjectAtRank, getRank, getRank, getValueAtRank, printByRank, printByRank, printLowerK, printTopK, set, setRankOrder, setRankOrder, setRankOrder, setReverseRankOrder

Methods inherited from class cc.mallet.types.FeatureVector

alphabetsMatch, cloneMatrix, cloneMatrixZeroed, contains, getAlphabet, getAlphabets, getObjectIndices, location, newFeatureVector, toSimpFile, toString, toString, value

Methods inherited from class cc.mallet.types.SparseVector

absNorm, addTo, addTo, arrayCopyFrom, arrayCopyFrom, arrayCopyInto, dotProduct, dotProduct, dotProduct, dotProduct, extendedDotProduct, extendedDotProduct, getDimensions, getIndices, getNumDimensions, getValues, incrementValue, indexAtLocation, infinityNorm, isBinary, isInfinite, isNaN, isNaNOrInfinite, location, makeBinary, makeNonBinary, map, numLocations, oneNorm, plusEqualsSparse, plusEqualsSparse, print, removeDuplicates, setAll, setValue, setValueAtLocation, singleIndex, singleSize, singleToIndices, singleValue, sortIndices, timesEquals, timesEqualsSparse, timesEqualsSparse, timesEqualsSparseZero, twoNorm, value, value, valueAtLocation, vectorAdd

Methods inherited from class java.lang.Object

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

Constructor Detail

InfoGain

public InfoGain(InstanceList ilist)

InfoGain

public InfoGain(Alphabet vocab,
                double[] infogains)

Method Detail

getBaseEntropy

public double getBaseEntropy()

getBaseLabelDistribution

public LabelVector getBaseLabelDistribution()