TY - JOUR
T1 - Candidate generation for ASR output error correction using a Context-Dependent Syllable Cluster-based Confusion Matrix
AU - Liu, Chao Hong
AU - Wu, Chung Hsien
AU - Sarwono, David
AU - Wang, Jhing Fa
PY - 2011
Y1 - 2011
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84865745770&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84865745770&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:84865745770
SN - 2308-457X
SP - 1633
EP - 1636
JO - Proceedings of the Annual Conference of the International Speech Communication Association, INTERSPEECH
JF - Proceedings of the Annual Conference of the International Speech Communication Association, INTERSPEECH
T2 - 12th Annual Conference of the International Speech Communication Association, INTERSPEECH 2011
Y2 - 27 August 2011 through 31 August 2011
ER -