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Speaker model adaptation based on confidence score

Erhan Mengusoglu orcid id ; TED University, Computer Engineering Department, Ziya Gokalp Caddesi No 48, Kolej, Cankaya, Ankara, Turkey

Puni tekst: hrvatski pdf 663 Kb

str. 873-878

preuzimanja: 275


Puni tekst: engleski pdf 663 Kb

str. 873-878

preuzimanja: 506



Confidence measures are expected to give a measure of reliability on the result of a speech/speaker recognition system. Most commonly used confidence measures are based on posterior word or phoneme probabilities which can be obtained from the output of the recognizer. In this paper we introduced a linear interpretation of posterior probability based confidence measure by using inverse Fisher transformation. Speaker adaptation consists in updating model parameters of a speaker independent model to have a better representation of the current speaker. Confidence measures give more reliable selection criteria to select the utterances which best represent the speaker. A linear interpretation of confidence measure is very important to select the most representative data for adaptation.

Ključne riječi

confidence measure, Fisher transformation, speaker adaptation, speaker verification

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Podaci na drugim jezicima: hrvatski

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