On estimation of a speaker's confusion matrix from sparse data

  title={On estimation of a speaker's confusion matrix from sparse data},
  author={Stephen Cox},
Confusion matrices have been widely used to increase the accuracy of speech recognisers, but usually a mean confusion matrix, averaged over many speakers, is used. However, analysis shows that confusion matrices for individual speakers vary considerably, and so there is benefit in obtaining estimates of confusion matrices for individual speakers. Unfortunately, there is rarely enough data to make reliable estimates. We present a technique for estimating the elements of a speaker’s confusion… CONTINUE READING

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