A new look at discriminative training for hidden Markov models
DiscriminativetrainingforhiddenMarkovmodels(HMMs)hasbeenacentralthemeinspeechrecognitionresearchformanyyears.Onemostpopulartechniqueisminimumclassi?cationerror(MCE)training,withtheobjectivefunctioncloselyrelatedtotheempiricalerrorrateandwiththeoptimizationmethodbasedtraditionallyongradientdescent.Inthispaper,weprovideanewlookattheMC
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