Candidate generation for ASR output error correction using a Context-Dependent Syllable Cluster-based Confusion Matrix

Chao Hong Liu; Chung-Hsien Wu; David Sarwono; Jhing Fa Wang

Candidate generation for ASR output error correction using a Context-Dependent Syllable Cluster-based Confusion Matrix

Chao Hong Liu, Chung-Hsien Wu, David Sarwono, Jhing Fa Wang

Department of Computer Science and Information Engineering

Research output: Contribution to journal › Conference article

1 Citation (Scopus)

Abstract

Error correction techniques have been proposed in the applications of language learning and spoken dialogue systems for spoken language understanding. These techniques include two consecutive stages: the generation of correction candidates and the selection of correction candidates. In this study, a Context-Dependent Syllable Cluster (CD-SC)-based Confusion Matrix is proposed for the generation of correction candidates. A Contextual Fitness Score, measuring the sequential relationship to the neighbors of the candidate, is proposed for corrected syllable sequence selection. Finally, the n-gram language model is used to determine the final word sequence output. Experiments show that the proposed method improved from 0.742 to 0.771 in terms of BLEU score as compared to the conventional speech recognition mechanism.

Original language	English
Pages (from-to)	1633-1636
Number of pages	4
Journal	Proceedings of the Annual Conference of the International Speech Communication Association, INTERSPEECH
Publication status	Published - 2011 Dec 1
Event	12th Annual Conference of the International Speech Communication Association, INTERSPEECH 2011 - Florence, Italy Duration: 2011 Aug 27 → 2011 Aug 31

All Science Journal Classification (ASJC) codes

Language and Linguistics
Human-Computer Interaction
Signal Processing
Software
Modelling and Simulation

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Liu, C. H., Wu, C-H., Sarwono, D., & Wang, J. F. (2011). Candidate generation for ASR output error correction using a Context-Dependent Syllable Cluster-based Confusion Matrix. Proceedings of the Annual Conference of the International Speech Communication Association, INTERSPEECH, 1633-1636.

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abstract = "Error correction techniques have been proposed in the applications of language learning and spoken dialogue systems for spoken language understanding. These techniques include two consecutive stages: the generation of correction candidates and the selection of correction candidates. In this study, a Context-Dependent Syllable Cluster (CD-SC)-based Confusion Matrix is proposed for the generation of correction candidates. A Contextual Fitness Score, measuring the sequential relationship to the neighbors of the candidate, is proposed for corrected syllable sequence selection. Finally, the n-gram language model is used to determine the final word sequence output. Experiments show that the proposed method improved from 0.742 to 0.771 in terms of BLEU score as compared to the conventional speech recognition mechanism.",

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Candidate generation for ASR output error correction using a Context-Dependent Syllable Cluster-based Confusion Matrix. / Liu, Chao Hong; Wu, Chung-Hsien; Sarwono, David; Wang, Jhing Fa.

In: Proceedings of the Annual Conference of the International Speech Communication Association, INTERSPEECH, 01.12.2011, p. 1633-1636.

Research output: Contribution to journal › Conference article

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