Automatic speech recognition (ASR) processing using confidence measures

Douglas J. Brems

doi:10.1121/1.419831

Automatic speech recognition (ASR) processing using confidence measures

The Journal of the Acoustical Society of America ◽

10.1121/1.419831 ◽

1997 ◽

Vol 102 (1) ◽

pp. 25

Author(s):

Douglas J. Brems

Keyword(s):

Speech Recognition ◽

Automatic Speech Recognition ◽

Confidence Measures

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Confidence Measures in Automatic Speech Recognition Systems for Error Detection in Restricted Domains

Advances in Speech and Language Technologies for Iberian Languages - Lecture Notes in Computer Science ◽

10.1007/978-3-319-13623-3_18 ◽

2014 ◽

pp. 168-177

Author(s):

Julia Olcoz ◽

Alfonso Ortega ◽

Antonio Miguel ◽

Eduardo Lleida

Keyword(s):

Speech Recognition ◽

Automatic Speech Recognition ◽

Error Detection ◽

Confidence Measures ◽

Restricted Domains ◽

Recognition Systems

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Frame-synchronous and local confidence measures for on-the-fly automatic speech recognition

10.21437/interspeech.2008-435 ◽

2008 ◽

Author(s):

Joseph Razik ◽

Odile Mella ◽

Dominique Fohr ◽

Jean-Paul Haton

Keyword(s):

Speech Recognition ◽

Automatic Speech Recognition ◽

Confidence Measures

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FRAME-SYNCHRONOUS AND LOCAL CONFIDENCE MEASURES FOR AUTOMATIC SPEECH RECOGNITION

International Journal of Pattern Recognition and Artificial Intelligence ◽

10.1142/s0218001411008543 ◽

2011 ◽

Vol 25 (02) ◽

pp. 157-182 ◽

Cited By ~ 4

Author(s):

JOSEPH RAZIK ◽

ODILE MELLA ◽

DOMINIQUE FOHR ◽

JEAN-PAUL HATON

Keyword(s):

Speech Recognition ◽

Likelihood Ratio ◽

Automatic Speech Recognition ◽

Posterior Probability ◽

State Of The Art ◽

Confidence Measure ◽

Confidence Measures ◽

Automatic Transcription ◽

Recognition Systems ◽

Large Vocabulary Speech Recognition

In this paper, we introduce two new confidence measures for large vocabulary speech recognition systems. The major feature of these measures is that they can be computed without waiting for the end of the audio stream. We proposed two kinds of confidence measures: frame-synchronous and local. The frame-synchronous ones can be computed as soon as a frame is processed by the recognition engine and are based on a likelihood ratio. The local measures estimate a local posterior probability in the vicinity of the word to analyze. We evaluated our confidence measures within the framework of the automatic transcription of French broadcast news with the EER criterion. Our local measures achieved results very close to the best state-of-the-art measure (EER of 23% compared to 22.0%). We then conducted a preliminary experiment to assess the contribution of our confidence measure in improving the comprehension of an automatic transcription for the hearing impaired. We introduced several modalities to highlight words of low confidence in this transcription. We showed that these modalities used with our local confidence measure improved the comprehension of automatic transcription.

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