Posterior Probability Decoding , Confidence Estimation and System Combination

  title={Posterior Probability Decoding , Confidence Estimation and System Combination},
  author={Gunnar Evermann},
In this paper the estimation of word posterior probabilities is discussed and their application in the CU-HTK system used in the March 2000 Hub5 Conversational Telephone Speech evaluation is described. The word lattices produced by the Viterbi decoder were used to generate confusion networks, which provide a compact representation of the most likely word hypotheses and their associated word posterior probabilities. These confusion networks were used in a number of post-processing steps. The 1… CONTINUE READING
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